This commit was manufactured by cvs2svn to create branch 'APR'.APR

git-svn-id: http://svn.apache.org/repos/asf/apr/apr/branches/APR@59152 13f79535-47bb-0310-9956-ffa450edef68

11 files changed, 0 insertions, 3766 deletions

diff --git a/inc/apr_pools.h b/inc/apr_pools.h
deleted file mode 100644
index 9cf202e42..000000000
--- a/inc/apr_pools.h
+++ /dev/null
@@ -1,322 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef ap_POOLS_H
-#define ap_POOLS_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Resource allocation routines...
- *
- * designed so that we don't have to keep track of EVERYTHING so that
- * it can be explicitly freed later (a fundamentally unsound strategy ---
- * particularly in the presence of die()).
- *
- * Instead, we maintain pools, and allocate items (both memory and I/O
- * handlers) from the pools --- currently there are two, one for per
- * transaction info, and one for config info.  When a transaction is over,
- * we can delete everything in the per-transaction pool without fear, and
- * without thinking too hard about it either.
- *
- * rst
- */
-
-/* Arenas for configuration info and transaction info
- * --- actual layout of the pool structure is private to 
- * alloc.c.  
- */
-
- /* Need declaration of DIR on Win32 */
-#ifdef WIN32
-/*#include "../os/win32/readdir.h"*/
-#endif
-#include "apr_lib.h"
-
-#include <sys/types.h>
-#ifdef HAVE_SYS_WAIT_H
-#include <sys/wait.h>
-#endif
-#include <signal.h>
-
-struct process_chain {
-    pid_t pid;
-    enum kill_conditions kill_how;
-    struct process_chain *next;
-};
-
-struct ap_pool_t {
-    union block_hdr *first;
-    union block_hdr *last;
-    struct cleanup *cleanups;
-    struct process_chain *subprocesses;
-    ap_pool_t *sub_pools;
-    ap_pool_t *sub_next;
-    ap_pool_t *sub_prev;
-    ap_pool_t *parent;
-    char *free_first_avail;
-#ifdef ALLOC_USE_MALLOC
-    void *allocation_list;
-#endif
-#ifdef POOL_DEBUG
-    ap_pool_t *joined;
-#endif
-};
-
-struct ap_table_t {
-    /* This has to be first to promote backwards compatibility with
-     * older modules which cast a ap_table_t * to an ap_array_header_t *...
-     * they should use the table_elts() function for most of the
-     * cases they do this for.
-     */
-    ap_array_header_t a;
-#ifdef MAKE_TABLE_PROFILE
-    void *creator;
-#endif
-};
-
-/*
- * Tables.  Implemented alist style, for now, though we try to keep
- * it so that imposing a hash table structure on top in the future
- * wouldn't be *too* hard...
- *
- * Note that key comparisons for these are case-insensitive, largely
- * because that's what's appropriate and convenient everywhere they're
- * currently being used...
- */
-
-typedef struct ap_table_entry_t {
-    char *key;		/* maybe NULL in future;
-			 * check when iterating thru table_elts
-			 */
-    char *val;
-} ap_table_entry_t;
-
-ap_pool_t *ap_init_alloc(void);		/* Set up everything */
-
-/* used to guarantee to the pool debugging code that the sub pool will not be
- * destroyed before the parent pool
- */
-#ifndef POOL_DEBUG
-#ifdef ap_pool_join
-#undef ap_pool_join
-#endif /* ap_pool_join */
-#define ap_pool_join(a,b)
-#endif /* POOL_DEBUG */
-
-/* Clearing out EVERYTHING in an pool... destroys any sub-pools */
-
-/* Preparing for exec() --- close files, etc., but *don't* flush I/O
- * buffers, *don't* wait for subprocesses, and *don't* free any memory.
- */
-
-/* routines to allocate memory from an pool... */
-
-API_EXPORT_NONSTD(char *) ap_psprintf(struct context_t *, const char *fmt, ...)
-    __attribute__((format(printf,2,3)));
-
-/* array and alist management... keeping lists of things.
- * Common enough to want common support code ...
- */
-
-/* ap_array_pstrcat generates a new string from the pool containing
- * the concatenated sequence of substrings referenced as elements within
- * the array.  The string will be empty if all substrings are empty or null,
- * or if there are no elements in the array.
- * If sep is non-NUL, it will be inserted between elements as a separator.
- */
-
-/* copy_array copies the *entire* array.  copy_array_hdr just copies
- * the header, and arranges for the elements to be copied if (and only
- * if) the code subsequently does a push or arraycat.
- */
-
-
-
-/* Conceptually, ap_overlap_tables does this:
-
-    ap_array_header_t *barr = ap_table_elts(b);
-    ap_table_entry_t *belt = (ap_table_entry_t *)barr->elts;
-    int i;
-
-    for (i = 0; i < barr->nelts; ++i) {
-	if (flags & ap_OVERLAP_TABLES_MERGE) {
-	    ap_table_mergen(a, belt[i].key, belt[i].val);
-	}
-	else {
-	    ap_table_setn(a, belt[i].key, belt[i].val);
-	}
-    }
-
-    Except that it is more efficient (less space and cpu-time) especially
-    when b has many elements.
-
-    Notice the assumptions on the keys and values in b -- they must be
-    in an ancestor of a's pool.  In practice b and a are usually from
-    the same pool.
-*/
-#define ap_OVERLAP_TABLES_SET	(0)
-#define ap_OVERLAP_TABLES_MERGE	(1)
-
-/* XXX: these know about the definition of struct table in alloc.c.  That
- * definition is not here because it is supposed to be private, and by not
- * placing it here we are able to get compile-time diagnostics from modules
- * written which assume that a table is the same as an ap_array_header_t. -djg
- */
-#define ap_table_elts(t) ((ap_array_header_t *)(t))
-#define ap_is_empty_table(t) (((t) == NULL)||(((ap_array_header_t *)(t))->nelts == 0))
-
-/* routines to remember allocation of other sorts of things...
- * generic interface first.  Note that we want to have two separate
- * cleanup functions in the general case, one for exec() preparation,
- * to keep CGI scripts and the like from inheriting access to things
- * they shouldn't be able to touch, and one for actually cleaning up,
- * when the actual server process wants to get rid of the thing,
- * whatever it is.  
- *
- * kill_cleanup disarms a cleanup, presumably because the resource in
- * question has been closed, freed, or whatever, and it's scarce
- * enough to want to reclaim (e.g., descriptors).  It arranges for the
- * resource not to be cleaned up a second time (it might have been
- * reallocated).  run_cleanup does the same, but runs it first.
- *
- * Cleanups are identified for purposes of finding & running them off by the
- * plain_cleanup and data, which should presumably be unique.
- *
- * NB any code which invokes register_cleanup or kill_cleanup directly
- * is a critical section which should be guarded by block_alarms() and
- * unblock_alarms() below...
- */
-
-/* A "do-nothing" cleanup, for register_cleanup; it's faster to do
- * things this way than to test for NULL. */
-
-/* The time between when a resource is actually allocated, and when
- * its cleanup is registered is a critical section, during which the
- * resource could leak if we got interrupted or timed out.  So, anything
- * which registers cleanups should bracket resource allocation and the
- * cleanup registry with these.  (This is done internally by run_cleanup).
- *
- * NB they are actually implemented in http_main.c, since they are bound
- * up with timeout handling in general...
- */
-
-/* Common cases which want utility support..
- * the note_cleanups_for_foo routines are for 
- */
-
-API_EXPORT(FILE *) ap_pfopen(ap_pool_t *, const char *name, const char *fmode);
-API_EXPORT(FILE *) ap_pfdopen(ap_pool_t *, int fd, const char *fmode);
-API_EXPORT(int) ap_popenf(ap_pool_t *, const char *name, int flg, int mode);
-
-API_EXPORT(void) ap_note_cleanups_for_file(ap_pool_t *, FILE *);
-API_EXPORT(void) ap_note_cleanups_for_fd(ap_pool_t *, int);
-API_EXPORT(void) ap_kill_cleanups_for_fd(ap_pool_t *p, int fd);
-API_EXPORT(void) ap_note_cleanups_for_socket(ap_pool_t *, int);
-API_EXPORT(void) ap_kill_cleanups_for_socket(ap_pool_t *p, int sock);
-API_EXPORT(int) ap_psocket(ap_pool_t *p, int, int, int);
-API_EXPORT(int) ap_pclosesocket(ap_pool_t *a, int sock);
-API_EXPORT(regex_t *) ap_pregcomp(ap_pool_t *p, const char *pattern,
-				   int cflags);
-API_EXPORT(void) ap_pregfree(ap_pool_t *p, regex_t * reg);
-
-/* routines to note closes... file descriptors are constrained enough
- * on some systems that we want to support this.
- */
-
-API_EXPORT(int) ap_pfclose(ap_pool_t *, FILE *);
-API_EXPORT(int) ap_pclosef(ap_pool_t *, int fd);
-
-/* routines to deal with directories */
-/*API_EXPORT(DIR *) ap_popendir(ap_pool_t *p, const char *name);
-API_EXPORT(void) ap_pclosedir(ap_pool_t *p, DIR * d);
-*/
-/* ... even child processes (which we may want to wait for,
- * or to kill outright, on unexpected termination).
- *
- * ap_spawn_child is a utility routine which handles an awful lot of
- * the rigamarole associated with spawning a child --- it arranges
- * for pipes to the child's stdin and stdout, if desired (if not,
- * set the associated args to NULL).  It takes as args a function
- * to call in the child, and an argument to be passed to the function.
- */
-
-API_EXPORT(void) ap_note_subprocess(struct context_t *a, pid_t pid,
-				    enum kill_conditions how);
-
-/* magic numbers --- min free bytes to consider a free pool block useable,
- * and the min amount to allocate if we have to go to malloc() */
-
-#ifndef BLOCK_MINFREE
-#define BLOCK_MINFREE 4096
-#endif
-#ifndef BLOCK_MINALLOC
-#define BLOCK_MINALLOC 8192
-#endif
-
-/* Finally, some accounting */
-
-API_EXPORT(long) ap_bytes_in_pool(ap_pool_t *p);
-API_EXPORT(long) ap_bytes_in_free_blocks(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif	/* !ap_POOLS_H */
diff --git a/include/apr_lib.h b/include/apr_lib.h
deleted file mode 100644
index c0f30f31c..000000000
--- a/include/apr_lib.h
+++ /dev/null
@@ -1,382 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1998-1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- * The ap_vsnprintf/ap_snprintf functions are based on, and used with the
- * permission of, the  SIO stdiocntxteplacement strx_* functions by Panos
- * Tsirigotis <panos@alumni.cs.colorado.edu> for xinetd.
- *
- * This header file defines the public interfaces for the APR general-purpose
- * library routines.  No others should need to be #included.
- */
-
-#ifndef APR_LIB_H
-#define APR_LIB_H
-
-#include "apr_general.h"
-#include "apr_file_io.h"
-#ifndef WIN32
-#include "apr_config.h"
-#else
-#include "apr_win.h"
-#endif
-#include "hsregex.h"
-#ifdef HAVE_STDARG_H
-#include <stdarg.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef HAVE_MALLOC_H
-#include <malloc.h>
-#endif
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#define HUGE_STRING_LEN 8192
-
-/*
- * Define the structures used by the APR general-purpose library.
- */
-
-/*
- * Memory allocation stuff, like pools, arrays, and tables.  Pools
- * and tables are opaque structures to applications, but arrays are
- * published.
- */
-typedef struct ap_pool_t ap_pool_t;
-typedef struct ap_table_t ap_table_t;
-typedef struct ap_child_info_t ap_child_info_t;
-typedef void ap_mutex_t;
-typedef struct ap_array_header_t {
-    ap_context_t *cont;
-    int elt_size;
-    int nelts;
-    int nalloc;
-    char *elts;
-} ap_array_header_t;
-
-/*
- * Structure used by the variable-formatter routines.
- */
-typedef struct ap_vformatter_buff_t {
-    char *curpos;
-    char *endpos;
-} ap_vformatter_buff_t;
-
-enum kill_conditions {
-    kill_never,			/* process is never sent any signals */
-    kill_always,		/* process is sent SIGKILL on pool cleanup */
-    kill_after_timeout,		/* SIGTERM, wait 3 seconds, SIGKILL */
-    just_wait,			/* wait forever for the process to complete */
-    kill_only_once		/* send SIGTERM and then wait */
-};
-
-/*
- * Define the prototypes for the various APR GP routines.
- */
-API_EXPORT(char *) ap_cpystrn(char *d, const char *s, size_t l);
-/*API_EXPORT(ap_mutex_t *) ap_create_mutex(void *m);*/
-API_EXPORT(int) ap_slack(int l, int h);
-API_EXPORT_NONSTD(int) ap_execle(const char *c, const char *a, ...);
-API_EXPORT_NONSTD(int) ap_execve(const char *c, const char *argv[],
-				  const char *envp[]);
-
-#define ap_create_mutex(x) (0)
-#define ap_release_mutex(x) (0)
-#define ap_acquire_mutex(x) (0)
-#define ap_islower(x) (0)
-#define ap_isalpha(x) (0)
-#define ap_isdigit(x) (0)
-
-#define apr_tolower(c) (tolower(((unsigned char)(c))))
-
-/*
- * Small utility macros to make things easier to read.  Not usually a
- * goal, to be sure..
- */
-
-#ifdef WIN32
-#define ap_killpg(x, y)
-#else /* WIN32 */
-#ifdef NO_KILLPG
-#define ap_killpg(x, y)		(kill (-(x), (y)))
-#else /* NO_KILLPG */
-#define ap_killpg(x, y)		(killpg ((x), (y)))
-#endif /* NO_KILLPG */
-#endif /* WIN32 */
-
-/*
- * ap_vformatter() is a generic printf-style formatting routine
- * with some extensions.  The extensions are:
- *
- * %pA	takes a struct in_addr *, and prints it as a.b.c.d
- * %pI	takes a struct sockaddr_in * and prints it as a.b.c.d:port
- * %pp  takes a void * and outputs it in hex
- *
- * The %p hacks are to force gcc's printf warning code to skip
- * over a pointer argument without complaining.  This does
- * mean that the ANSI-style %p (output a void * in hex format) won't
- * work as expected at all, but that seems to be a fair trade-off
- * for the increased robustness of having printf-warnings work.
- *
- * Additionally, ap_vformatter allows for arbitrary output methods
- * using the ap_vformatter_buff and flush_func.
- *
- * The ap_vformatter_buff has two elements curpos and endpos.
- * curpos is where ap_vformatter will write the next byte of output.
- * It proceeds writing output to curpos, and updating curpos, until
- * either the end of output is reached, or curpos == endpos (i.e. the
- * buffer is full).
- *
- * If the end of output is reached, ap_vformatter returns the
- * number of bytes written.
- *
- * When the buffer is full, the flush_func is called.  The flush_func
- * can return -1 to indicate that no further output should be attempted,
- * and ap_vformatter will return immediately with -1.  Otherwise
- * the flush_func should flush the buffer in whatever manner is
- * appropriate, re-initialize curpos and endpos, and return 0.
- *
- * Note that flush_func is only invoked as a result of attempting to
- * write another byte at curpos when curpos >= endpos.  So for
- * example, it's possible when the output exactly matches the buffer
- * space available that curpos == endpos will be true when
- * ap_vformatter returns.
- *
- * ap_vformatter does not call out to any other code, it is entirely
- * self-contained.  This allows the callers to do things which are
- * otherwise "unsafe".  For example, ap_psprintf uses the "scratch"
- * space at the unallocated end of a block, and doesn't actually
- * complete the allocation until ap_vformatter returns.  ap_psprintf
- * would be completely broken if ap_vformatter were to call anything
- * that used a ap_pool_t.  Similarly http_bprintf() uses the "scratch"
- * space at the end of its output buffer, and doesn't actually note
- * that the space is in use until it either has to flush the buffer
- * or until ap_vformatter returns.
- */
-
-API_EXPORT(int) ap_vformatter(int (*flush_func)(ap_vformatter_buff_t *b),
-			       ap_vformatter_buff_t *c, const char *fmt,
-			       va_list ap);
-
-/*
- * These are snprintf implementations based on ap_vformatter().
- *
- * Note that various standards and implementations disagree on the return
- * value of snprintf, and side-effects due to %n in the formatting string.
- * ap_snprintf behaves as follows:
- *
- * Process the format string until the entire string is exhausted, or
- * the buffer fills.  If the buffer fills then stop processing immediately
- * (so no further %n arguments are processed), and return the buffer
- * length.  In all cases the buffer is NUL terminated.
- *
- * In no event does ap_snprintf return a negative number.  It's not possible
- * to distinguish between an output which was truncated, and an output which
- * exactly filled the buffer.
- */
-API_EXPORT(int) ap_snprintf(char *buf, size_t len, const char *format, ...)
-	__attribute__((format(printf,3,4)));
-API_EXPORT(int) ap_vsnprintf(char *buf, size_t len, const char *format,
-			      va_list ap);
-
-/*
- * APR memory structure manipulators (pools, tables, and arrays).
- */
-API_EXPORT(ap_pool_t *) ap_make_sub_pool(ap_pool_t *p);
-API_EXPORT(void) ap_clear_pool(struct context_t *p);
-API_EXPORT(void) ap_destroy_pool(struct context_t *p);
-API_EXPORT(long) ap_bytes_in_pool(ap_pool_t *p);
-API_EXPORT(long) ap_bytes_in_free_blocks(void);
-API_EXPORT(ap_pool_t *) ap_find_pool(const void *ts);
-API_EXPORT(int) ap_pool_is_ancestor(ap_pool_t *a, ap_pool_t *b);
-API_EXPORT(void) ap_pool_join(ap_pool_t *p, ap_pool_t *sub);
-API_EXPORT(void *) ap_palloc(struct context_t *c, int reqsize);
-API_EXPORT(void *) ap_pcalloc(struct context_t *p, int size);
-API_EXPORT(char *) ap_pstrdup(struct context_t *p, const char *s);
-API_EXPORT(char *) ap_pstrndup(struct context_t *p, const char *s, int n);
-API_EXPORT_NONSTD(char *) ap_pstrcat(struct context_t *p, ...);
-API_EXPORT(char *) ap_pvsprintf(struct context_t *p, const char *fmt, va_list ap);
-API_EXPORT_NONSTD(char *) ap_psprintf(struct context_t *p, const char *fmt, ...);
-API_EXPORT(ap_array_header_t *) ap_make_array(struct context_t *p, int nelts,
-						int elt_size);
-API_EXPORT(void *) ap_push_array(ap_array_header_t *arr);
-API_EXPORT(void) ap_array_cat(ap_array_header_t *dst,
-			       const ap_array_header_t *src);
-API_EXPORT(ap_array_header_t *) ap_copy_array(struct context_t *p,
-						const ap_array_header_t *arr);
-API_EXPORT(ap_array_header_t *)
-	ap_copy_array_hdr(struct context_t *p,
-			   const ap_array_header_t *arr);
-API_EXPORT(ap_array_header_t *)
-	ap_append_arrays(struct context_t *p,
-			  const ap_array_header_t *first,
-			  const ap_array_header_t *second);
-API_EXPORT(char *) ap_array_pstrcat(struct context_t *p,
-				     const ap_array_header_t *arr,
-				     const char sep);
-API_EXPORT(ap_table_t *) ap_make_table(struct context_t *p, int nelts);
-API_EXPORT(ap_table_t *) ap_copy_table(struct context_t *p, const ap_table_t *t);
-API_EXPORT(void) ap_clear_table(ap_table_t *t);
-API_EXPORT(const char *) ap_table_get(const ap_table_t *t, const char *key);
-API_EXPORT(void) ap_table_set(ap_table_t *t, const char *key,
-			       const char *val);
-API_EXPORT(void) ap_table_setn(ap_table_t *t, const char *key,
-				const char *val);
-API_EXPORT(void) ap_table_unset(ap_table_t *t, const char *key);
-API_EXPORT(void) ap_table_merge(ap_table_t *t, const char *key,
-				 const char *val);
-API_EXPORT(void) ap_table_mergen(ap_table_t *t, const char *key,
-				  const char *val);
-API_EXPORT(void) ap_table_add(ap_table_t *t, const char *key,
-			       const char *val);
-API_EXPORT(void) ap_table_addn(ap_table_t *t, const char *key,
-				const char *val);
-API_EXPORT(ap_table_t *) ap_overlay_tables(struct context_t *p,
-					     const ap_table_t *overlay,
-					     const ap_table_t *base);
-API_EXPORT(void)
-	ap_table_do(int (*comp) (void *, const char *, const char *),
-		     void *rec, const ap_table_t *t, ...);
-API_EXPORT(void) ap_overlap_tables(ap_table_t *a, const ap_table_t *b,
-				    unsigned flags);
-API_EXPORT(void) ap_register_cleanup(struct context_t *p, void *data,
-				      ap_status_t (*plain_cleanup) (void *),
-				      ap_status_t (*child_cleanup) (void *));
-API_EXPORT(void) ap_kill_cleanup(struct context_t *p, void *data,
-				  ap_status_t (*cleanup) (void *));
-API_EXPORT(void) ap_run_cleanup(struct context_t *p, void *data,
-				 ap_status_t (*cleanup) (void *));
-API_EXPORT(void) ap_cleanup_for_exec(void);
-API_EXPORT(ap_status_t) ap_getpass(const char *prompt, char *pwbuf, size_t *bufsize);
-API_EXPORT_NONSTD(void) ap_null_cleanup(void *data);
-/*
-API_EXPORT(void) ap_note_cleanups_for_fd(ap_pool_t *p, int fd);
-API_EXPORT(void) ap_kill_cleanups_for_fd(ap_pool_t *p, int fd);
-API_EXPORT(int) ap_popenf(ap_pool_t *a, const char *name, int flg, int mode);
-API_EXPORT(int) ap_pclosef(ap_pool_t *a, int fd);
-API_EXPORT(void) ap_note_cleanups_for_file(ap_pool_t *p, FILE *fp);
-API_EXPORT(FILE *) ap_pfopen(ap_pool_t *a, const char *name,
-			      const char *mode);
-API_EXPORT(FILE *) ap_pfdopen(ap_pool_t *a, int fd, const char *mode);
-API_EXPORT(int) ap_pfclose(ap_pool_t *a, FILE *fd);
-API_EXPORT(DIR *) ap_popendir(ap_pool_t *p, const char *name);
-API_EXPORT(void) ap_pclosedir(ap_pool_t *p, DIR * d);
-API_EXPORT(void) ap_note_cleanups_for_socket(ap_pool_t *p, int fd);
-API_EXPORT(void) ap_kill_cleanups_for_socket(ap_pool_t *p, int sock);
-API_EXPORT(int) ap_psocket(ap_pool_t *p, int domain, int type, int protocol);
-API_EXPORT(int) ap_pclosesocket(ap_pool_t *a, int sock);
-*/
-API_EXPORT(regex_t *) ap_pregcomp(ap_pool_t *p, const char *pattern,
-				   int cflags);
-API_EXPORT(void) ap_pregfree(ap_pool_t *p, regex_t *reg);
-/*API_EXPORT(void) ap_note_subprocess(ap_pool_t *a, pid_t pid,
-				     enum kill_conditions how);
-*/
-API_EXPORT(int)
-	ap_spawn_child(ap_pool_t *p,
-			int (*func) (void *a, ap_child_info_t *c),
-			void *data, enum kill_conditions kill_how,
-			FILE **pipe_in, FILE **pipe_out,
-			FILE **pipe_err);
-#if 0
-API_EXPORT(int)
-	ap_bspawn_child(ap_pool_t *p,
-			 int (*func) (void *v, ap_child_info_t *c),
-			 void *data, enum kill_conditions kill_how,
-			 BUFF **pipe_in, BUFF **pipe_out, BUFF **pipe_err);
-#endif /* 0 */
-
-API_EXPORT(char *) apr_cpystrn(char *dst, const char *src, size_t dst_size);
-
-/*
- * Routine definitions that only work on Windows.
- */
-#ifdef WIN32
-API_EXPORT(void) ap_note_cleanups_for_h(ap_pool_t *p, HANDLE hDevice);
-API_EXPORT(int) ap_pcloseh(ap_pool_t *a, HANDLE hDevice);
-#endif /* WIN32 */
-
-/*#ifdef TPF*/
-#define ap_block_alarms() (0)
-#define ap_unblock_alarms() (0)
-/*#else 
-API_EXPORT(void) ap_block_alarms(void);
-API_EXPORT(void) ap_unblock_alarms(void);
-#endif */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif	/* ! APR_LIB_H */
diff --git a/include/apr_md5.h b/include/apr_md5.h
deleted file mode 100644
index 53d8f5c04..000000000
--- a/include/apr_md5.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * This is work is derived from material Copyright RSA Data Security, Inc.
- *
- * The RSA copyright statement and Licence for that original material is
- * included below. This is followed by the Apache copyright statement and
- * licence for the modifications made to that material.
- */
-
-/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
-   rights reserved.
-
-   License to copy and use this software is granted provided that it
-   is identified as the "RSA Data Security, Inc. MD5 Message-Digest
-   Algorithm" in all material mentioning or referencing this software
-   or this function.
-
-   License is also granted to make and use derivative works provided
-   that such works are identified as "derived from the RSA Data
-   Security, Inc. MD5 Message-Digest Algorithm" in all material
-   mentioning or referencing the derived work.
-
-   RSA Data Security, Inc. makes no representations concerning either
-   the merchantability of this software or the suitability of this
-   software for any particular purpose. It is provided "as is"
-   without express or implied warranty of any kind.
-
-   These notices must be retained in any copies of any part of this
-   documentation and/or software.
- */
-
-/* ====================================================================
- * Copyright (c) 1996-1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef APACHE_MD5_H
-#define APACHE_MD5_H
-
-#ifdef WIN32
-#include "apr_win.h"
-#endif
-
-#include "apr_lib.h"
-#ifdef HAVE_CRYPT_H
-#include <crypt.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* MD5.H - header file for MD5C.C */
-
-/* UINT4 defines a four byte word */
-typedef unsigned int UINT4;
-
-/* MD5 context. */
-typedef struct {
-    UINT4 state[4];		/* state (ABCD) */
-    UINT4 count[2];		/* number of bits, modulo 2^64 (lsb first) */
-    unsigned char buffer[64];	/* input buffer */
-} APR_MD5_CTX;
-
-API_EXPORT(void) apr_MD5Init(APR_MD5_CTX * context);
-API_EXPORT(void) apr_MD5Update(APR_MD5_CTX * context, const unsigned char *input,
-			   unsigned int inputLen);
-API_EXPORT(void) apr_MD5Final(unsigned char digest[16], APR_MD5_CTX * context);
-API_EXPORT(void) apr_MD5Encode(const char *password, const char *salt,
-			      char *result, size_t nbytes);
-API_EXPORT(char *) apr_validate_password(const char *passwd, const char *hash);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif	/* !APACHE_MD5_H */
diff --git a/include/apr_pools.h b/include/apr_pools.h
deleted file mode 100644
index 9cf202e42..000000000
--- a/include/apr_pools.h
+++ /dev/null
@@ -1,322 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef ap_POOLS_H
-#define ap_POOLS_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Resource allocation routines...
- *
- * designed so that we don't have to keep track of EVERYTHING so that
- * it can be explicitly freed later (a fundamentally unsound strategy ---
- * particularly in the presence of die()).
- *
- * Instead, we maintain pools, and allocate items (both memory and I/O
- * handlers) from the pools --- currently there are two, one for per
- * transaction info, and one for config info.  When a transaction is over,
- * we can delete everything in the per-transaction pool without fear, and
- * without thinking too hard about it either.
- *
- * rst
- */
-
-/* Arenas for configuration info and transaction info
- * --- actual layout of the pool structure is private to 
- * alloc.c.  
- */
-
- /* Need declaration of DIR on Win32 */
-#ifdef WIN32
-/*#include "../os/win32/readdir.h"*/
-#endif
-#include "apr_lib.h"
-
-#include <sys/types.h>
-#ifdef HAVE_SYS_WAIT_H
-#include <sys/wait.h>
-#endif
-#include <signal.h>
-
-struct process_chain {
-    pid_t pid;
-    enum kill_conditions kill_how;
-    struct process_chain *next;
-};
-
-struct ap_pool_t {
-    union block_hdr *first;
-    union block_hdr *last;
-    struct cleanup *cleanups;
-    struct process_chain *subprocesses;
-    ap_pool_t *sub_pools;
-    ap_pool_t *sub_next;
-    ap_pool_t *sub_prev;
-    ap_pool_t *parent;
-    char *free_first_avail;
-#ifdef ALLOC_USE_MALLOC
-    void *allocation_list;
-#endif
-#ifdef POOL_DEBUG
-    ap_pool_t *joined;
-#endif
-};
-
-struct ap_table_t {
-    /* This has to be first to promote backwards compatibility with
-     * older modules which cast a ap_table_t * to an ap_array_header_t *...
-     * they should use the table_elts() function for most of the
-     * cases they do this for.
-     */
-    ap_array_header_t a;
-#ifdef MAKE_TABLE_PROFILE
-    void *creator;
-#endif
-};
-
-/*
- * Tables.  Implemented alist style, for now, though we try to keep
- * it so that imposing a hash table structure on top in the future
- * wouldn't be *too* hard...
- *
- * Note that key comparisons for these are case-insensitive, largely
- * because that's what's appropriate and convenient everywhere they're
- * currently being used...
- */
-
-typedef struct ap_table_entry_t {
-    char *key;		/* maybe NULL in future;
-			 * check when iterating thru table_elts
-			 */
-    char *val;
-} ap_table_entry_t;
-
-ap_pool_t *ap_init_alloc(void);		/* Set up everything */
-
-/* used to guarantee to the pool debugging code that the sub pool will not be
- * destroyed before the parent pool
- */
-#ifndef POOL_DEBUG
-#ifdef ap_pool_join
-#undef ap_pool_join
-#endif /* ap_pool_join */
-#define ap_pool_join(a,b)
-#endif /* POOL_DEBUG */
-
-/* Clearing out EVERYTHING in an pool... destroys any sub-pools */
-
-/* Preparing for exec() --- close files, etc., but *don't* flush I/O
- * buffers, *don't* wait for subprocesses, and *don't* free any memory.
- */
-
-/* routines to allocate memory from an pool... */
-
-API_EXPORT_NONSTD(char *) ap_psprintf(struct context_t *, const char *fmt, ...)
-    __attribute__((format(printf,2,3)));
-
-/* array and alist management... keeping lists of things.
- * Common enough to want common support code ...
- */
-
-/* ap_array_pstrcat generates a new string from the pool containing
- * the concatenated sequence of substrings referenced as elements within
- * the array.  The string will be empty if all substrings are empty or null,
- * or if there are no elements in the array.
- * If sep is non-NUL, it will be inserted between elements as a separator.
- */
-
-/* copy_array copies the *entire* array.  copy_array_hdr just copies
- * the header, and arranges for the elements to be copied if (and only
- * if) the code subsequently does a push or arraycat.
- */
-
-
-
-/* Conceptually, ap_overlap_tables does this:
-
-    ap_array_header_t *barr = ap_table_elts(b);
-    ap_table_entry_t *belt = (ap_table_entry_t *)barr->elts;
-    int i;
-
-    for (i = 0; i < barr->nelts; ++i) {
-	if (flags & ap_OVERLAP_TABLES_MERGE) {
-	    ap_table_mergen(a, belt[i].key, belt[i].val);
-	}
-	else {
-	    ap_table_setn(a, belt[i].key, belt[i].val);
-	}
-    }
-
-    Except that it is more efficient (less space and cpu-time) especially
-    when b has many elements.
-
-    Notice the assumptions on the keys and values in b -- they must be
-    in an ancestor of a's pool.  In practice b and a are usually from
-    the same pool.
-*/
-#define ap_OVERLAP_TABLES_SET	(0)
-#define ap_OVERLAP_TABLES_MERGE	(1)
-
-/* XXX: these know about the definition of struct table in alloc.c.  That
- * definition is not here because it is supposed to be private, and by not
- * placing it here we are able to get compile-time diagnostics from modules
- * written which assume that a table is the same as an ap_array_header_t. -djg
- */
-#define ap_table_elts(t) ((ap_array_header_t *)(t))
-#define ap_is_empty_table(t) (((t) == NULL)||(((ap_array_header_t *)(t))->nelts == 0))
-
-/* routines to remember allocation of other sorts of things...
- * generic interface first.  Note that we want to have two separate
- * cleanup functions in the general case, one for exec() preparation,
- * to keep CGI scripts and the like from inheriting access to things
- * they shouldn't be able to touch, and one for actually cleaning up,
- * when the actual server process wants to get rid of the thing,
- * whatever it is.  
- *
- * kill_cleanup disarms a cleanup, presumably because the resource in
- * question has been closed, freed, or whatever, and it's scarce
- * enough to want to reclaim (e.g., descriptors).  It arranges for the
- * resource not to be cleaned up a second time (it might have been
- * reallocated).  run_cleanup does the same, but runs it first.
- *
- * Cleanups are identified for purposes of finding & running them off by the
- * plain_cleanup and data, which should presumably be unique.
- *
- * NB any code which invokes register_cleanup or kill_cleanup directly
- * is a critical section which should be guarded by block_alarms() and
- * unblock_alarms() below...
- */
-
-/* A "do-nothing" cleanup, for register_cleanup; it's faster to do
- * things this way than to test for NULL. */
-
-/* The time between when a resource is actually allocated, and when
- * its cleanup is registered is a critical section, during which the
- * resource could leak if we got interrupted or timed out.  So, anything
- * which registers cleanups should bracket resource allocation and the
- * cleanup registry with these.  (This is done internally by run_cleanup).
- *
- * NB they are actually implemented in http_main.c, since they are bound
- * up with timeout handling in general...
- */
-
-/* Common cases which want utility support..
- * the note_cleanups_for_foo routines are for 
- */
-
-API_EXPORT(FILE *) ap_pfopen(ap_pool_t *, const char *name, const char *fmode);
-API_EXPORT(FILE *) ap_pfdopen(ap_pool_t *, int fd, const char *fmode);
-API_EXPORT(int) ap_popenf(ap_pool_t *, const char *name, int flg, int mode);
-
-API_EXPORT(void) ap_note_cleanups_for_file(ap_pool_t *, FILE *);
-API_EXPORT(void) ap_note_cleanups_for_fd(ap_pool_t *, int);
-API_EXPORT(void) ap_kill_cleanups_for_fd(ap_pool_t *p, int fd);
-API_EXPORT(void) ap_note_cleanups_for_socket(ap_pool_t *, int);
-API_EXPORT(void) ap_kill_cleanups_for_socket(ap_pool_t *p, int sock);
-API_EXPORT(int) ap_psocket(ap_pool_t *p, int, int, int);
-API_EXPORT(int) ap_pclosesocket(ap_pool_t *a, int sock);
-API_EXPORT(regex_t *) ap_pregcomp(ap_pool_t *p, const char *pattern,
-				   int cflags);
-API_EXPORT(void) ap_pregfree(ap_pool_t *p, regex_t * reg);
-
-/* routines to note closes... file descriptors are constrained enough
- * on some systems that we want to support this.
- */
-
-API_EXPORT(int) ap_pfclose(ap_pool_t *, FILE *);
-API_EXPORT(int) ap_pclosef(ap_pool_t *, int fd);
-
-/* routines to deal with directories */
-/*API_EXPORT(DIR *) ap_popendir(ap_pool_t *p, const char *name);
-API_EXPORT(void) ap_pclosedir(ap_pool_t *p, DIR * d);
-*/
-/* ... even child processes (which we may want to wait for,
- * or to kill outright, on unexpected termination).
- *
- * ap_spawn_child is a utility routine which handles an awful lot of
- * the rigamarole associated with spawning a child --- it arranges
- * for pipes to the child's stdin and stdout, if desired (if not,
- * set the associated args to NULL).  It takes as args a function
- * to call in the child, and an argument to be passed to the function.
- */
-
-API_EXPORT(void) ap_note_subprocess(struct context_t *a, pid_t pid,
-				    enum kill_conditions how);
-
-/* magic numbers --- min free bytes to consider a free pool block useable,
- * and the min amount to allocate if we have to go to malloc() */
-
-#ifndef BLOCK_MINFREE
-#define BLOCK_MINFREE 4096
-#endif
-#ifndef BLOCK_MINALLOC
-#define BLOCK_MINALLOC 8192
-#endif
-
-/* Finally, some accounting */
-
-API_EXPORT(long) ap_bytes_in_pool(ap_pool_t *p);
-API_EXPORT(long) ap_bytes_in_free_blocks(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif	/* !ap_POOLS_H */
diff --git a/include/arch/beos/networkio.h b/include/arch/beos/networkio.h
deleted file mode 100644
index c16caa379..000000000
--- a/include/arch/beos/networkio.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef NETWORK_IO_H
-#define NETWORK_IO_H
-
-#include <socket.h>
-#include <netdb.h>
-#include "apr_general.h"
-
-#define POLLIN	 1
-#define POLLPRI  2
-#define POLLOUT  4
-#define POLLERR  8
-#define POLLHUP  16
-#define POLLNVAL 32
-
-struct socket_t {
-    ap_context_t *cntxt;
-    int socketdes;
-    char *remote_hostname;
-    struct sockaddr_in * addr;
-    int addr_len;
-};
-
-struct pollfd_t {
-    ap_context_t *cntxt;
-    struct socket_t *sock;
-    fd_set *read;
-    fd_set *write;
-    fd_set *except;
-    int highsock;
-};
-
-ap_int16_t get_event(ap_int16_t);
-
-#endif  /* ! NETWORK_IO_H */
-
diff --git a/include/arch/os2/networkio.h b/include/arch/os2/networkio.h
deleted file mode 100644
index c8ab17de2..000000000
--- a/include/arch/os2/networkio.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef NETWORK_IO_H
-#define NETWORK_IO_H
-
-#include "apr_network_io.h"
-#include "apr_general.h"
-
-struct socket_t {
-    ap_context_t *cntxt;
-    int socketdes;
-    char *remote_hostname;
-    struct sockaddr_in *addr;
-    int addr_len;
-};
-
-struct pollfd_t {
-    ap_context_t *cntxt;
-    struct socket_t *sock;
-    ap_int16_t events;
-    ap_int16_t revents;
-    int curpos;
-};
-
-ap_int16_t get_event(ap_int16_t);
-
-#endif  /* ! NETWORK_IO_H */
-
diff --git a/include/arch/unix/networkio.h b/include/arch/unix/networkio.h
deleted file mode 100644
index d71c819a1..000000000
--- a/include/arch/unix/networkio.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef NETWORK_IO_H
-#define NETWORK_IO_H
-
-#include "apr_network_io.h"
-#include "apr_general.h"
-#include <poll.h>
-
-struct socket_t {
-    ap_context_t *cntxt;
-    int socketdes;
-    char *remote_hostname;
-    struct sockaddr_in *addr;
-    size_t addr_len;
-};
-
-struct pollfd_t {
-    ap_context_t *cntxt;
-#ifdef HAVE_POLL
-    int *sock;
-    int curpos;
-#else
-    fd_set *read;
-    fd_set *write;
-    fd_set *except;
-    int highsock;
-#endif
-    ap_int16_t *events;
-    ap_int16_t *revents;
-
-};
-
-ap_int16_t get_event(ap_int16_t);
-
-#endif  /* ! NETWORK_IO_H */
-
diff --git a/include/arch/win32/misc.h b/include/arch/win32/misc.h
deleted file mode 100644
index a496c372e..000000000
--- a/include/arch/win32/misc.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef MISC_H
-#define MISC_H
-
-#include "apr_general.h"
-#include "apr_file_io.h"
-#include "apr_errno.h"
-
-struct context_t {
-    struct ap_pool_t *pool;
-    ap_int16_t signal_safe;
-    ap_int16_t cancel_safe;
-    void *prog_data;
-};
-
-#endif  /* ! MISC_H */
-
diff --git a/include/arch/win32/networkio.h b/include/arch/win32/networkio.h
deleted file mode 100644
index bd830f256..000000000
--- a/include/arch/win32/networkio.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-#ifndef NETWORK_IO_H
-#define NETWORK_IO_H
-
-#include "apr_network_io.h"
-#include "apr_general.h"
-
-struct socket_t {
-    ap_context_t *cntxt;
-    SOCKET sock;
-    char *remote_hostname;
-    struct sockaddr_in *addr;
-    size_t addr_len;
-};
-
-struct pollfd_t {
-    ap_context_t *cntxt;
-    fd_set *read;
-    int numread;
-    fd_set *write;
-    int numwrite;
-    fd_set *except;
-    int numexcept;    
-};
-
-#endif  /* ! NETWORK_IO_H */
-
diff --git a/include/hsregex.h b/include/hsregex.h
deleted file mode 100644
index e5b24e60f..000000000
--- a/include/hsregex.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/* DON'T EVEN THINK ABOUT EDITING THIS, go see regex/Makefile,
- * search for mkh */
-#ifndef _REGEX_H_
-#define	_REGEX_H_	/* never again */
-/* ========= begin header generated by ./mkh ========= */
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* === regex2.h === */
-#ifndef API_EXPORT
-#ifdef WIN32
-#define API_EXPORT(type)    __declspec(dllexport) type __stdcall
-#else
-#define API_EXPORT(type)    type
-#endif
-#endif
-
-#if defined(RHAPSODY)
-#define ap_private_extern __private_extern__
-#else
-#define ap_private_extern
-#endif
-
-typedef off_t regoff_t;
-typedef struct {
-	int re_magic;
-	size_t re_nsub;		/* number of parenthesized subexpressions */
-	const char *re_endp;	/* end pointer for REG_PEND */
-	struct re_guts *re_g;	/* none of your business :-) */
-} regex_t;
-typedef struct {
-	regoff_t rm_so;		/* start of match */
-	regoff_t rm_eo;		/* end of match */
-} regmatch_t;
-
-
-/* === regcomp.c === */
-API_EXPORT(int) regcomp(regex_t *, const char *, int);
-#define	REG_BASIC	0000
-#define	REG_EXTENDED	0001
-#define	REG_ICASE	0002
-#define	REG_NOSUB	0004
-#define	REG_NEWLINE	0010
-#define	REG_NOSPEC	0020
-#define	REG_PEND	0040
-#define	REG_DUMP	0200
-
-
-/* === regerror.c === */
-#define	REG_NOMATCH	 1
-#define	REG_BADPAT	 2
-#define	REG_ECOLLATE	 3
-#define	REG_ECTYPE	 4
-#define	REG_EESCAPE	 5
-#define	REG_ESUBREG	 6
-#define	REG_EBRACK	 7
-#define	REG_EPAREN	 8
-#define	REG_EBRACE	 9
-#define	REG_BADBR	10
-#define	REG_ERANGE	11
-#define	REG_ESPACE	12
-#define	REG_BADRPT	13
-#define	REG_EMPTY	14
-#define	REG_ASSERT	15
-#define	REG_INVARG	16
-#define	REG_ATOI	255	/* convert name to number (!) */
-#define	REG_ITOA	0400	/* convert number to name (!) */
-API_EXPORT(size_t) regerror(int, const regex_t *, char *, size_t);
-
-
-/* === regexec.c === */
-API_EXPORT(int) regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
-#define	REG_NOTBOL	00001
-#define	REG_NOTEOL	00002
-#define	REG_STARTEND	00004
-#define	REG_TRACE	00400	/* tracing of execution */
-#define	REG_LARGE	01000	/* force large representation */
-#define	REG_BACKR	02000	/* force use of backref code */
-
-
-/* === regfree.c === */
-API_EXPORT(void) regfree(regex_t *);
-
-#ifdef __cplusplus
-}
-#endif
-/* ========= end header generated by ./mkh ========= */
-#endif
diff --git a/memory/unix/apr_pools.c b/memory/unix/apr_pools.c
deleted file mode 100644
index 1aa2009c0..000000000
--- a/memory/unix/apr_pools.c
+++ /dev/null
@@ -1,2110 +0,0 @@
-/* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- *    nor may "Apache" appear in their names without prior written
- *    permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the Apache Group
- *    for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-/*
- * Resource allocation code... the code here is responsible for making
- * sure that nothing leaks.
- *
- * rst --- 4/95 --- 6/95
- */
-
-#ifndef WIN32
-#include "apr_config.h"
-#else
-#include "apr_win.h"
-#endif
-
-#include "apr_general.h"
-#include "apr_pools.h"
-#include "apr_lib.h"
-#include "misc.h"
-#include <stdlib.h>
-#include <malloc.h>
-
-/*
- * Debugging support: Define this to enable code which helps detect re-use
- * of freed memory and other such nonsense.
- *
- * The theory is simple.  The FILL_BYTE (0xa5) is written over all malloc'd
- * memory as we receive it, and is written over everything that we free up
- * during a clear_pool.  We check that blocks on the free list always
- * have the FILL_BYTE in them, and we check during palloc() that the bytes
- * still have FILL_BYTE in them.  If you ever see garbage URLs or whatnot
- * containing lots of 0xa5s then you know something used data that's been
- * freed or uninitialized.
- */
-/* #define ALLOC_DEBUG */
-
-/*
- * Debugging support: If defined all allocations will be done with
- * malloc and free()d appropriately at the end.  This is intended to be
- * used with something like Electric Fence or Purify to help detect
- * memory problems.  Note that if you're using efence then you should also
- * add in ALLOC_DEBUG.  But don't add in ALLOC_DEBUG if you're using Purify
- * because ALLOC_DEBUG would hide all the uninitialized read errors that
- * Purify can diagnose.
- */
-/* #define ALLOC_USE_MALLOC */
-
-/*
- * Pool debugging support:  This is intended to detect cases where the
- * wrong pool is used when assigning data to an object in another pool.
- * In particular, it causes the table_{set,add,merge}n routines to check
- * that their arguments are safe for the table they're being placed in.
- * It currently only works with the unix multiprocess model, but could
- * be extended to others.
- */
-/* #define POOL_DEBUG */
-
-/*
- * Provide diagnostic information about make_table() calls which are
- * possibly too small.  This requires a recent gcc which supports
- * __builtin_return_address().  The error_log output will be a
- * message such as:
- *    table_push: table created by 0x804d874 hit limit of 10
- * Use "l *0x804d874" to find the source that corresponds to.  It
- * indicates that a table allocated by a call at that address has
- * possibly too small an initial table size guess.
- */
-/* #define MAKE_TABLE_PROFILE */
-
-/*
- * Provide some statistics on the cost of allocations.  It requires a
- * bit of an understanding of how alloc.c works.
- */
-/* #define ALLOC_STATS */
-
-#ifdef POOL_DEBUG
-#ifdef ALLOC_USE_MALLOC
-#error "sorry, no support for ALLOC_USE_MALLOC and POOL_DEBUG at the same time"
-#endif /* ALLOC_USE_MALLOC */
-
-#ifdef MULTITHREAD
-# error "sorry, no support for MULTITHREAD and POOL_DEBUG at the same time"
-#endif /* MULTITHREAD */
-
-#endif /* POOL_DEBUG */
-
-#ifdef ALLOC_USE_MALLOC
-#undef BLOCK_MINFREE
-#undef BLOCK_MINALLOC
-#define BLOCK_MINFREE	0
-#define BLOCK_MINALLOC	0
-#endif /* ALLOC_USE_MALLOC */
-
-/*****************************************************************
- *
- * Managing free storage blocks...
- */
-
-union align {
-    /*
-     * Types which are likely to have the longest RELEVANT alignment
-     * restrictions...
-     */
-
-    char *cp;
-    void (*f) (void);
-    long l;
-    FILE *fp;
-    double d;
-};
-
-#define CLICK_SZ (sizeof(union align))
-
-union block_hdr {
-    union align a;
-
-    /* Actual header... */
-
-    struct {
-	char *endp;
-	union block_hdr *next;
-	char *first_avail;
-#ifdef POOL_DEBUG
-	union block_hdr *global_next;
-	ap_pool_t *owning_pool;
-#endif /* POOL_DEBUG */
-    } h;
-};
-
-/*
- * Static cells for managing our internal synchronisation.
- */
-static union block_hdr *block_freelist = NULL;
-static ap_mutex_t *alloc_mutex = NULL;
-static ap_mutex_t *spawn_mutex = NULL;
-
-#ifdef POOL_DEBUG
-static char *known_stack_point;
-static int stack_direction;
-static union block_hdr *global_block_list;
-#define FREE_POOL	((ap_pool_t *)(-1))
-#endif /* POOL_DEBUG */
-
-#ifdef ALLOC_STATS
-static unsigned long long num_free_blocks_calls;
-static unsigned long long num_blocks_freed;
-static unsigned max_blocks_in_one_free;
-static unsigned num_malloc_calls;
-static unsigned num_malloc_bytes;
-#endif /* ALLOC_STATS */
-
-#ifdef ALLOC_DEBUG
-#define FILL_BYTE	((char)(0xa5))
-#define debug_fill(ptr,size)	((void)memset((ptr), FILL_BYTE, (size)))
-
-static APR_INLINE void debug_verify_filled(const char *ptr, const char *endp,
-					   const char *error_msg)
-{
-    for ( ; ptr < endp; ++ptr) {
-	if (*ptr != FILL_BYTE) {
-	    fputs(error_msg, stderr);
-	    abort();
-	    exit(1);
-	}
-    }
-}
-
-#else /* ALLOC_DEBUG */
-#define debug_fill(a,b)
-#define debug_verify_filled(a,b,c)
-#endif /* ALLOC_DEBUG */
-
-/*
- * Get a completely new block from the system pool. Note that we rely on
- * malloc() to provide aligned memory.
- */
-
-static union block_hdr *malloc_block(int size)
-{
-    union block_hdr *blok;
-
-#ifdef ALLOC_DEBUG
-    /* make some room at the end which we'll fill and expect to be
-     * always filled
-     */
-    size += CLICK_SZ;
-#endif /* ALLOC_DEBUG */
-
-#ifdef ALLOC_STATS
-    ++num_malloc_calls;
-    num_malloc_bytes += size + sizeof(union block_hdr);
-#endif /* ALLOC_STATS */
-
-    blok = (union block_hdr *) malloc(size + sizeof(union block_hdr));
-    if (blok == NULL) {
-	fprintf(stderr, "Ouch!  malloc failed in malloc_block()\n");
-	exit(1);
-    }
-    debug_fill(blok, size + sizeof(union block_hdr));
-    blok->h.next = NULL;
-    blok->h.first_avail = (char *) (blok + 1);
-    blok->h.endp = size + blok->h.first_avail;
-
-#ifdef ALLOC_DEBUG
-    blok->h.endp -= CLICK_SZ;
-#endif /* ALLOC_DEBUG */
-
-#ifdef POOL_DEBUG
-    blok->h.global_next = global_block_list;
-    global_block_list = blok;
-    blok->h.owning_pool = NULL;
-#endif /* POOL_DEBUG */
-
-    return blok;
-}
-
-
-
-#if defined(ALLOC_DEBUG) && !defined(ALLOC_USE_MALLOC)
-static void chk_on_blk_list(union block_hdr *blok, union block_hdr *free_blk)
-{
-    debug_verify_filled(blok->h.endp, blok->h.endp + CLICK_SZ,
-			"Ouch!  Someone trounced the padding "
-			"at the end of a block!\n");
-    while (free_blk) {
-	if (free_blk == blok) {
-	    fprintf(stderr, "Ouch!  Freeing free block\n");
-	    abort();
-	    exit(1);
-	}
-	free_blk = free_blk->h.next;
-    }
-}
-#else /* defined(ALLOC_DEBUG) && !defined(ALLOC_USE_MALLOC) */
-#define chk_on_blk_list(_x, _y)
-#endif /* defined(ALLOC_DEBUG) && !defined(ALLOC_USE_MALLOC) */
-
-/* Free a chain of blocks --- must be called with alarms blocked. */
-
-static void free_blocks(union block_hdr *blok)
-{
-#ifdef ALLOC_USE_MALLOC
-    union block_hdr *next;
-
-    for ( ; blok; blok = next) {
-	next = blok->h.next;
-	free(blok);
-    }
-#else /* ALLOC_USE_MALLOC */
-
-#ifdef ALLOC_STATS
-    unsigned num_blocks;
-#endif /* ALLOC_STATS */
-
-    /*
-     * First, put new blocks at the head of the free list ---
-     * we'll eventually bash the 'next' pointer of the last block
-     * in the chain to point to the free blocks we already had.
-     */
-
-    union block_hdr *old_free_list;
-
-    if (blok == NULL) {
-	return;			/* Sanity check --- freeing empty pool? */
-    }
-
-    (void) ap_acquire_mutex(alloc_mutex);
-    old_free_list = block_freelist;
-    block_freelist = blok;
-
-    /*
-     * Next, adjust first_avail pointers of each block --- have to do it
-     * sooner or later, and it simplifies the search in new_block to do it
-     * now.
-     */
-
-#ifdef ALLOC_STATS
-    num_blocks = 1;
-#endif /* ALLOC_STATS */
-
-    while (blok->h.next != NULL) {
-
-#ifdef ALLOC_STATS
-	++num_blocks;
-#endif /* ALLOC_STATS */
-
-	chk_on_blk_list(blok, old_free_list);
-	blok->h.first_avail = (char *) (blok + 1);
-	debug_fill(blok->h.first_avail, blok->h.endp - blok->h.first_avail);
-#ifdef POOL_DEBUG
-	blok->h.owning_pool = FREE_POOL;
-#endif /* POOL_DEBUG */
-	blok = blok->h.next;
-    }
-
-    chk_on_blk_list(blok, old_free_list);
-    blok->h.first_avail = (char *) (blok + 1);
-    debug_fill(blok->h.first_avail, blok->h.endp - blok->h.first_avail);
-#ifdef POOL_DEBUG
-    blok->h.owning_pool = FREE_POOL;
-#endif /* POOL_DEBUG */
-
-    /* Finally, reset next pointer to get the old free blocks back */
-
-    blok->h.next = old_free_list;
-
-#ifdef ALLOC_STATS
-    if (num_blocks > max_blocks_in_one_free) {
-	max_blocks_in_one_free = num_blocks;
-    }
-    ++num_free_blocks_calls;
-    num_blocks_freed += num_blocks;
-#endif /* ALLOC_STATS */
-
-    (void) ap_release_mutex(alloc_mutex);
-#endif /* ALLOC_USE_MALLOC */
-}
-
-/*
- * Get a new block, from our own free list if possible, from the system
- * if necessary.  Must be called with alarms blocked.
- */
-
-static union block_hdr *new_block(int min_size)
-{
-    union block_hdr **lastptr = &block_freelist;
-    union block_hdr *blok = block_freelist;
-
-    /* First, see if we have anything of the required size
-     * on the free list...
-     */
-
-    while (blok != NULL) {
-	if (min_size + BLOCK_MINFREE <= blok->h.endp - blok->h.first_avail) {
-	    *lastptr = blok->h.next;
-	    blok->h.next = NULL;
-	    debug_verify_filled(blok->h.first_avail, blok->h.endp,
-				"Ouch!  Someone trounced a block "
-				"on the free list!\n");
-	    return blok;
-	}
-	else {
-	    lastptr = &blok->h.next;
-	    blok = blok->h.next;
-	}
-    }
-
-    /* Nope. */
-
-    min_size += BLOCK_MINFREE;
-    blok = malloc_block((min_size > BLOCK_MINALLOC)
-			? min_size : BLOCK_MINALLOC);
-    return blok;
-}
-
-
-/* Accounting */
-
-static long bytes_in_block_list(union block_hdr *blok)
-{
-    long size = 0;
-
-    while (blok) {
-	size += blok->h.endp - (char *) (blok + 1);
-	blok = blok->h.next;
-    }
-
-    return size;
-}
-
-
-/*****************************************************************
- *
- * Pool internals and management...
- * NB that subprocesses are not handled by the generic cleanup code,
- * basically because we don't want cleanups for multiple subprocesses
- * to result in multiple three-second pauses.
- */
-
-struct process_chain;
-struct cleanup;
-
-static void run_cleanups(struct cleanup *c);
-static void free_proc_chain(struct process_chain *p);
-
-static ap_pool_t *permanent_pool;
-
-/* Each pool structure is allocated in the start of its own first block,
- * so we need to know how many bytes that is (once properly aligned...).
- * This also means that when a pool's sub-pool is destroyed, the storage
- * associated with it is *completely* gone, so we have to make sure it
- * gets taken off the parent's sub-pool list...
- */
-
-#define POOL_HDR_CLICKS (1 + ((sizeof(struct ap_pool_t) - 1) / CLICK_SZ))
-#define POOL_HDR_BYTES (POOL_HDR_CLICKS * CLICK_SZ)
-
-API_EXPORT(ap_pool_t *) ap_make_sub_pool(ap_pool_t *p)
-{
-    union block_hdr *blok;
-    ap_pool_t *new_pool;
-
-    ap_block_alarms();
-
-    (void) ap_acquire_mutex(alloc_mutex);
-
-    blok = new_block(POOL_HDR_BYTES);
-    new_pool = (ap_pool_t *) blok->h.first_avail;
-    blok->h.first_avail += POOL_HDR_BYTES;
-#ifdef POOL_DEBUG
-    blok->h.owning_pool = new_pool;
-#endif
-
-    memset((char *) new_pool, '\0', sizeof(struct ap_pool_t));
-    new_pool->free_first_avail = blok->h.first_avail;
-    new_pool->first = new_pool->last = blok;
-
-    if (p) {
-	new_pool->parent = p;
-	new_pool->sub_next = p->sub_pools;
-	if (new_pool->sub_next) {
-	    new_pool->sub_next->sub_prev = new_pool;
-	}
-	p->sub_pools = new_pool;
-    }
-
-    (void) ap_release_mutex(alloc_mutex);
-    ap_unblock_alarms();
-
-    return new_pool;
-}
-
-#ifdef POOL_DEBUG
-static void stack_var_init(char *s)
-{
-    char t;
-
-    if (s < &t) {
-	stack_direction = 1; /* stack grows up */
-    }
-    else {
-	stack_direction = -1; /* stack grows down */
-    }
-}
-#endif
-
-#ifdef ALLOC_STATS
-static void dump_stats(void)
-{
-    fprintf(stderr,
-	    "alloc_stats: [%d] #free_blocks %llu #blocks %llu max "
-	    "%u #malloc %u #bytes %u\n",
-	(int) getpid(),
-	num_free_blocks_calls,
-	num_blocks_freed,
-	max_blocks_in_one_free,
-	num_malloc_calls,
-	num_malloc_bytes);
-}
-#endif
-
-ap_pool_t *ap_init_alloc(void)
-{
-#ifdef POOL_DEBUG
-    char s;
-
-    known_stack_point = &s;
-    stack_var_init(&s);
-#endif
-    alloc_mutex = ap_create_mutex(NULL);
-    spawn_mutex = ap_create_mutex(NULL);
-    permanent_pool = ap_make_sub_pool(NULL);
-#ifdef ALLOC_STATS
-    atexit(dump_stats);
-#endif
-
-    return permanent_pool;
-}
-
-API_EXPORT(void) ap_clear_pool(struct context_t *a)
-{
-    ap_block_alarms();
-
-    (void) ap_acquire_mutex(alloc_mutex);
-    while (a->pool->sub_pools) {
-	ap_destroy_pool(a);
-    }
-    (void) ap_release_mutex(alloc_mutex);
-    /*
-     * Don't hold the mutex during cleanups.
-     */
-    run_cleanups(a->pool->cleanups);
-    a->pool->cleanups = NULL;
-    free_proc_chain(a->pool->subprocesses);
-    a->pool->subprocesses = NULL;
-    free_blocks(a->pool->first->h.next);
-    a->pool->first->h.next = NULL;
-
-    a->pool->last = a->pool->first;
-    a->pool->first->h.first_avail = a->pool->free_first_avail;
-    debug_fill(a->pool->first->h.first_avail,
-	       a->pool->first->h.endp - a->pool->first->h.first_avail);
-
-#ifdef ALLOC_USE_MALLOC
-    {
-	void *c, *n;
-
-	for (c = a->pool->allocation_list; c; c = n) {
-	    n = *(void **)c;
-	    free(c);
-	}
-	a->pool->allocation_list = NULL;
-    }
-#endif
-
-    ap_unblock_alarms();
-}
-
-API_EXPORT(void) ap_destroy_pool(struct context_t *a)
-{
-    ap_block_alarms();
-    ap_clear_pool(a);
-
-    (void) ap_acquire_mutex(alloc_mutex);
-    if (a->pool->parent) {
-	if (a->pool->parent->sub_pools == a->pool) {
-	    a->pool->parent->sub_pools = a->pool->sub_next;
-	}
-	if (a->pool->sub_prev) {
-	    a->pool->sub_prev->sub_next = a->pool->sub_next;
-	}
-	if (a->pool->sub_next) {
-	    a->pool->sub_next->sub_prev = a->pool->sub_prev;
-	}
-    }
-    (void) ap_release_mutex(alloc_mutex);
-
-    free_blocks(a->pool->first);
-    ap_unblock_alarms();
-}
-
-API_EXPORT(long) ap_bytes_in_pool(ap_pool_t *p)
-{
-    return bytes_in_block_list(p->first);
-}
-API_EXPORT(long) ap_bytes_in_free_blocks(void)
-{
-    return bytes_in_block_list(block_freelist);
-}
-
-/*****************************************************************
- * POOL_DEBUG support
- */
-#ifdef POOL_DEBUG
-
-/* the unix linker defines this symbol as the last byte + 1 of
- * the executable... so it includes TEXT, BSS, and DATA
- */
-extern char _end;
-
-/* is ptr in the range [lo,hi) */
-#define is_ptr_in_range(ptr, lo, hi) \
-    (((unsigned long)(ptr) - (unsigned long)(lo)) \
-     < (unsigned long)(hi) - (unsigned long)(lo))
-
-/* Find the pool that ts belongs to, return NULL if it doesn't
- * belong to any pool.
- */
-API_EXPORT(ap_pool_t *) ap_find_pool(const void *ts)
-{
-    const char *s = ts;
-    union block_hdr **pb;
-    union block_hdr *b;
-
-    /* short-circuit stuff which is in TEXT, BSS, or DATA */
-    if (is_ptr_in_range(s, 0, &_end)) {
-	return NULL;
-    }
-    /* consider stuff on the stack to also be in the NULL pool...
-     * XXX: there's cases where we don't want to assume this
-     */
-    if ((stack_direction == -1 && is_ptr_in_range(s, &ts, known_stack_point))
-	|| (stack_direction == 1
-	    && is_ptr_in_range(s, known_stack_point, &ts))) {
-	abort();
-	return NULL;
-    }
-    ap_block_alarms();
-    /* search the global_block_list */
-    for (pb = &global_block_list; *pb; pb = &b->h.global_next) {
-	b = *pb;
-	if (is_ptr_in_range(s, b, b->h.endp)) {
-	    if (b->h.owning_pool == FREE_POOL) {
-		fprintf(stderr,
-			"Ouch!  find_pool() called on pointer "
-			"in a free block\n");
-		abort();
-		exit(1);
-	    }
-	    if (b != global_block_list) {
-		/*
-		 * promote b to front of list, this is a hack to speed
-		 * up the lookup
-		 */
-		*pb = b->h.global_next;
-		b->h.global_next = global_block_list;
-		global_block_list = b;
-	    }
-	    ap_unblock_alarms();
-	    return b->h.owning_pool;
-	}
-    }
-    ap_unblock_alarms();
-    return NULL;
-}
-
-/* return TRUE iff a is an ancestor of b
- * NULL is considered an ancestor of all pools
- */
-API_EXPORT(int) ap_pool_is_ancestor(ap_pool_t *a, ap_pool_t *b)
-{
-    if (a == NULL) {
-	return 1;
-    }
-    while (a->joined) {
-	a = a->joined;
-    }
-    while (b) {
-	if (a == b) {
-	    return 1;
-	}
-	b = b->parent;
-    }
-    return 0;
-}
-
-/*
- * All blocks belonging to sub will be changed to point to p
- * instead.  This is a guarantee by the caller that sub will not
- * be destroyed before p is.
- */
-API_EXPORT(void) ap_pool_join(ap_pool_t *p, ap_pool_t *sub)
-{
-    union block_hdr *b;
-
-    /* We could handle more general cases... but this is it for now. */
-    if (sub->parent != p) {
-	fprintf(stderr, "pool_join: p is not parent of sub\n");
-	abort();
-    }
-    ap_block_alarms();
-    while (p->joined) {
-	p = p->joined;
-    }
-    sub->joined = p;
-    for (b = global_block_list; b; b = b->h.global_next) {
-	if (b->h.owning_pool == sub) {
-	    b->h.owning_pool = p;
-	}
-    }
-    ap_unblock_alarms();
-}
-#endif
-
-/*****************************************************************
- *
- * Allocating stuff...
- */
-
-
-API_EXPORT(void *) ap_palloc(struct context_t *c, int reqsize)
-{
-#ifdef ALLOC_USE_MALLOC
-    ap_pool_t *a = c->pool;
-    int size = reqsize + CLICK_SZ;
-    void *ptr;
-
-    ap_block_alarms();
-    ptr = malloc(size);
-    if (ptr == NULL) {
-	fputs("Ouch!  Out of memory!\n", stderr);
-	exit(1);
-    }
-    debug_fill(ptr, size); /* might as well get uninitialized protection */
-    *(void **)ptr = a->allocation_list;
-    a->allocation_list = ptr;
-    ap_unblock_alarms();
-    return (char *)ptr + CLICK_SZ;
-#else
-
-    /*
-     * Round up requested size to an even number of alignment units
-     * (core clicks)
-     */
-    ap_pool_t *a = c->pool;
-    int nclicks = 1 + ((reqsize - 1) / CLICK_SZ);
-    int size = nclicks * CLICK_SZ;
-
-    /* First, see if we have space in the block most recently
-     * allocated to this pool
-     */
-
-    union block_hdr *blok = a->last;
-    char *first_avail = blok->h.first_avail;
-    char *new_first_avail;
-
-    if (reqsize <= 0) {
-	return NULL;
-    }
-
-    new_first_avail = first_avail + size;
-
-    if (new_first_avail <= blok->h.endp) {
-	debug_verify_filled(first_avail, blok->h.endp,
-			    "Ouch!  Someone trounced past the end "
-			    "of their allocation!\n");
-	blok->h.first_avail = new_first_avail;
-	return (void *) first_avail;
-    }
-
-    /* Nope --- get a new one that's guaranteed to be big enough */
-
-    ap_block_alarms();
-
-    (void) ap_acquire_mutex(alloc_mutex);
-
-    blok = new_block(size);
-    a->last->h.next = blok;
-    a->last = blok;
-#ifdef POOL_DEBUG
-    blok->h.owning_pool = a;
-#endif
-
-    (void) ap_release_mutex(alloc_mutex);
-
-    ap_unblock_alarms();
-
-    first_avail = blok->h.first_avail;
-    blok->h.first_avail += size;
-
-    return (void *) first_avail;
-#endif
-}
-
-API_EXPORT(void *) ap_pcalloc(struct context_t *a, int size)
-{
-    void *res = ap_palloc(a, size);
-    memset(res, '\0', size);
-    return res;
-}
-
-API_EXPORT(char *) ap_pstrdup(struct context_t *a, const char *s)
-{
-    char *res;
-    size_t len;
-
-    if (s == NULL) {
-	return NULL;
-    }
-    len = strlen(s) + 1;
-    res = ap_palloc(a, len);
-    memcpy(res, s, len);
-    return res;
-}
-
-API_EXPORT(char *) ap_pstrndup(struct context_t *a, const char *s, int n)
-{
-    char *res;
-
-    if (s == NULL) {
-	return NULL;
-    }
-    res = ap_palloc(a, n + 1);
-    memcpy(res, s, n);
-    res[n] = '\0';
-    return res;
-}
-
-API_EXPORT_NONSTD(char *) ap_pstrcat(struct context_t *a, ...)
-{
-    char *cp, *argp, *res;
-
-    /* Pass one --- find length of required string */
-
-    int len = 0;
-    va_list adummy;
-
-    va_start(adummy, a);
-
-    while ((cp = va_arg(adummy, char *)) != NULL) {
-	len += strlen(cp);
-    }
-
-    va_end(adummy);
-
-    /* Allocate the required string */
-
-    res = (char *) ap_palloc(a, len + 1);
-    cp = res;
-    *cp = '\0';
-
-    /* Pass two --- copy the argument strings into the result space */
-
-    va_start(adummy, a);
-
-    while ((argp = va_arg(adummy, char *)) != NULL) {
-	strcpy(cp, argp);
-	cp += strlen(argp);
-    }
-
-    va_end(adummy);
-
-    /* Return the result string */
-
-    return res;
-}
-
-/*
- * ap_psprintf is implemented by writing directly into the current
- * block of the pool, starting right at first_avail.  If there's
- * insufficient room, then a new block is allocated and the earlier
- * output is copied over.  The new block isn't linked into the pool
- * until all the output is done.
- *
- * Note that this is completely safe because nothing else can
- * allocate in this pool while ap_psprintf is running.  alarms are
- * blocked, and the only thing outside of alloc.c that's invoked
- * is ap_vformatter -- which was purposefully written to be
- * self-contained with no callouts.
- */
-
-struct psprintf_data {
-    ap_vformatter_buff_t vbuff;
-#ifdef ALLOC_USE_MALLOC
-    char *base;
-#else
-    union block_hdr *blok;
-    int got_a_new_block;
-#endif
-};
-
-static int psprintf_flush(ap_vformatter_buff_t *vbuff)
-{
-    struct psprintf_data *ps = (struct psprintf_data *)vbuff;
-#ifdef ALLOC_USE_MALLOC
-    int size;
-    char *ptr;
-
-    size = (char *)ps->vbuff.curpos - ps->base;
-    ptr = realloc(ps->base, 2*size);
-    if (ptr == NULL) {
-	fputs("Ouch!  Out of memory!\n", stderr);
-	exit(1);
-    }
-    ps->base = ptr;
-    ps->vbuff.curpos = ptr + size;
-    ps->vbuff.endpos = ptr + 2*size - 1;
-    return 0;
-#else
-    union block_hdr *blok;
-    union block_hdr *nblok;
-    size_t cur_len;
-    char *strp;
-
-    blok = ps->blok;
-    strp = ps->vbuff.curpos;
-    cur_len = strp - blok->h.first_avail;
-
-    /* must try another blok */
-    (void) ap_acquire_mutex(alloc_mutex);
-    nblok = new_block(2 * cur_len);
-    (void) ap_release_mutex(alloc_mutex);
-    memcpy(nblok->h.first_avail, blok->h.first_avail, cur_len);
-    ps->vbuff.curpos = nblok->h.first_avail + cur_len;
-    /* save a byte for the NUL terminator */
-    ps->vbuff.endpos = nblok->h.endp - 1;
-
-    /* did we allocate the current blok? if so free it up */
-    if (ps->got_a_new_block) {
-	debug_fill(blok->h.first_avail, blok->h.endp - blok->h.first_avail);
-	(void) ap_acquire_mutex(alloc_mutex);
-	blok->h.next = block_freelist;
-	block_freelist = blok;
-	(void) ap_release_mutex(alloc_mutex);
-    }
-    ps->blok = nblok;
-    ps->got_a_new_block = 1;
-    /* note that we've deliberately not linked the new block onto
-     * the pool yet... because we may need to flush again later, and
-     * we'd have to spend more effort trying to unlink the block.
-     */
-    return 0;
-#endif
-}
-
-API_EXPORT(char *) ap_pvsprintf(struct context_t *c, const char *fmt, va_list ap)
-{
-#ifdef ALLOC_USE_MALLOC
-    ap_pool_t *p = c->pool;
-    struct psprintf_data ps;
-    void *ptr;
-
-    ap_block_alarms();
-    ps.base = malloc(512);
-    if (ps.base == NULL) {
-	fputs("Ouch!  Out of memory!\n", stderr);
-	exit(1);
-    }
-    /* need room at beginning for allocation_list */
-    ps.vbuff.curpos = ps.base + CLICK_SZ;
-    ps.vbuff.endpos = ps.base + 511;
-    ap_vformatter(psprintf_flush, &ps.vbuff, fmt, ap);
-    *ps.vbuff.curpos++ = '\0';
-    ptr = ps.base;
-    /* shrink */
-    ptr = realloc(ptr, (char *)ps.vbuff.curpos - (char *)ptr);
-    if (ptr == NULL) {
-	fputs("Ouch!  Out of memory!\n", stderr);
-	exit(1);
-    }
-    *(void **)ptr = p->allocation_list;
-    p->allocation_list = ptr;
-    ap_unblock_alarms();
-    return (char *)ptr + CLICK_SZ;
-#else
-    struct psprintf_data ps;
-    char *strp;
-    int size;
-    ap_pool_t *p = c->pool;
-
-    ap_block_alarms();
-    ps.blok = p->last;
-    ps.vbuff.curpos = ps.blok->h.first_avail;
-    ps.vbuff.endpos = ps.blok->h.endp - 1;	/* save one for NUL */
-    ps.got_a_new_block = 0;
-
-    ap_vformatter(psprintf_flush, &ps.vbuff, fmt, ap);
-
-    strp = ps.vbuff.curpos;
-    *strp++ = '\0';
-
-    size = strp - ps.blok->h.first_avail;
-    size = (1 + ((size - 1) / CLICK_SZ)) * CLICK_SZ;
-    strp = ps.blok->h.first_avail;	/* save away result pointer */
-    ps.blok->h.first_avail += size;
-
-    /* have to link the block in if it's a new one */
-    if (ps.got_a_new_block) {
-	p->last->h.next = ps.blok;
-	p->last = ps.blok;
-#ifdef POOL_DEBUG
-	ps.blok->h.owning_pool = p;
-#endif
-    }
-    ap_unblock_alarms();
-
-    return strp;
-#endif
-}
-
-API_EXPORT_NONSTD(char *) ap_psprintf(struct context_t *p, const char *fmt, ...)
-{
-    va_list ap;
-    char *res;
-
-    va_start(ap, fmt);
-    res = ap_pvsprintf(p, fmt, ap);
-    va_end(ap);
-    return res;
-}
-
-/*****************************************************************
- *
- * Managing generic cleanups.  
- */
-
-struct cleanup {
-    void *data;
-    ap_status_t (*plain_cleanup) (void *);
-    ap_status_t (*child_cleanup) (void *);
-    struct cleanup *next;
-};
-
-API_EXPORT(void) ap_register_cleanup(struct context_t *p, void *data,
-				      ap_status_t (*plain_cleanup) (void *),
-				      ap_status_t (*child_cleanup) (void *))
-{
-    struct cleanup *c;
-    c = (struct cleanup *) ap_palloc(p, sizeof(struct cleanup));
-    c->data = data;
-    c->plain_cleanup = plain_cleanup;
-    c->child_cleanup = child_cleanup;
-    c->next = p->pool->cleanups;
-    p->pool->cleanups = c;
-}
-
-API_EXPORT(void) ap_kill_cleanup(struct context_t *p, void *data,
-				  ap_status_t (*cleanup) (void *))
-{
-    struct cleanup *c = p->pool->cleanups;
-    struct cleanup **lastp = &p->pool->cleanups;
-
-    while (c) {
-	if (c->data == data && c->plain_cleanup == cleanup) {
-	    *lastp = c->next;
-	    break;
-	}
-
-	lastp = &c->next;
-	c = c->next;
-    }
-}
-
-API_EXPORT(void) ap_run_cleanup(struct context_t *p, void *data,
-				 ap_status_t (*cleanup) (void *))
-{
-    ap_block_alarms();		/* Run cleanup only once! */
-    (*cleanup) (data);
-    ap_kill_cleanup(p, data, cleanup);
-    ap_unblock_alarms();
-}
-
-static void run_cleanups(struct cleanup *c)
-{
-    while (c) {
-	(*c->plain_cleanup) (c->data);
-	c = c->next;
-    }
-}
-
-static void run_child_cleanups(struct cleanup *c)
-{
-    while (c) {
-	(*c->child_cleanup) (c->data);
-	c = c->next;
-    }
-}
-
-static void cleanup_pool_for_exec(ap_pool_t *p)
-{
-    run_child_cleanups(p->cleanups);
-    p->cleanups = NULL;
-
-    for (p = p->sub_pools; p; p = p->sub_next) {
-	cleanup_pool_for_exec(p);
-    }
-}
-
-API_EXPORT(void) ap_cleanup_for_exec(void)
-{
-#if !defined(WIN32) && !defined(OS2)
-    /*
-     * Don't need to do anything on NT or OS/2, because I
-     * am actually going to spawn the new process - not
-     * exec it. All handles that are not inheritable, will
-     * be automajically closed. The only problem is with
-     * file handles that are open, but there isn't much
-     * I can do about that (except if the child decides
-     * to go out and close them
-     */
-    ap_block_alarms();
-    cleanup_pool_for_exec(permanent_pool);
-    ap_unblock_alarms();
-#endif /* ndef WIN32 */
-}
-
-API_EXPORT_NONSTD(void) ap_null_cleanup(void *data)
-{
-    /* do nothing cleanup routine */
-}
-
-/*****************************************************************
- *
- * Files and file descriptors; these are just an application of the
- * generic cleanup interface.
- */
-#if 0 /*not really needed any more, apr takes care of this stuff */
-static void fd_cleanup(void *fdv)
-{
-    close((int) (long) fdv);
-}
-
-API_EXPORT(void) ap_note_cleanups_for_fd(ap_pool_t *p, int fd)
-{
-    ap_register_cleanup(p, (void *) (long) fd, fd_cleanup, fd_cleanup);
-}
-
-API_EXPORT(void) ap_kill_cleanups_for_fd(ap_pool_t *p, int fd)
-{
-    ap_kill_cleanup(p, (void *) (long) fd, fd_cleanup);
-}
-
-API_EXPORT(int) ap_popenf(ap_pool_t *a, const char *name, int flg, int mode)
-{
-    int fd;
-    int save_errno;
-
-    ap_block_alarms();
-    fd = open(name, flg, mode);
-    save_errno = errno;
-    if (fd >= 0) {
-	fd = ap_slack(fd, ap_SLACK_HIGH);
-	ap_note_cleanups_for_fd(a, fd);
-    }
-    ap_unblock_alarms();
-    errno = save_errno;
-    return fd;
-}
-
-API_EXPORT(int) ap_pclosef(ap_pool_t *a, int fd)
-{
-    int res;
-    int save_errno;
-
-    ap_block_alarms();
-    res = close(fd);
-    save_errno = errno;
-    ap_kill_cleanup(a, (void *) (long) fd, fd_cleanup);
-    ap_unblock_alarms();
-    errno = save_errno;
-    return res;
-}
-
-#ifdef WIN32
-static void h_cleanup(void *fdv)
-{
-    CloseHandle((HANDLE) fdv);
-}
-
-API_EXPORT(void) ap_note_cleanups_for_h(ap_pool_t *p, HANDLE hDevice)
-{
-    ap_register_cleanup(p, (void *) hDevice, h_cleanup, h_cleanup);
-}
-
-API_EXPORT(int) ap_pcloseh(ap_pool_t *a, HANDLE hDevice)
-{
-    int res=0;
-    int save_errno;
-
-    ap_block_alarms();
-    
-    if (!CloseHandle(hDevice)) {
-        res = GetLastError();
-    }
-    
-    save_errno = errno;
-    ap_kill_cleanup(a, (void *) hDevice, h_cleanup);
-    ap_unblock_alarms();
-    errno = save_errno;
-    return res;
-}
-#endif
-*/
-/* Note that we have separate plain_ and child_ cleanups for FILE *s,
- * since fclose() would flush I/O buffers, which is extremely undesirable;
- * we just close the descriptor.
- */
-/*
-static void file_cleanup(void *fpv)
-{
-    fclose((FILE *) fpv);
-}
-static void file_child_cleanup(void *fpv)
-{
-    close(fileno((FILE *) fpv));
-}
-
-API_EXPORT(void) ap_note_cleanups_for_file(ap_pool_t *p, FILE *fp)
-{
-    ap_register_cleanup(p, (void *) fp, file_cleanup, file_child_cleanup);
-}
-
-API_EXPORT(FILE *) ap_pfopen(ap_pool_t *a, const char *name,
-			      const char *mode)
-{
-    FILE *fd = NULL;
-    int baseFlag, desc;
-    int modeFlags = 0;
-    int saved_errno;
-
-#ifdef WIN32
-    modeFlags = _S_IREAD | _S_IWRITE;
-#else 
-    modeFlags = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
-#endif
-
-    ap_block_alarms();
-
-    if (*mode == 'a') {
-	/* Work around faulty implementations of fopen */ 
-	baseFlag = (*(mode + 1) == '+') ? O_RDWR : O_WRONLY;
-	desc = open(name, baseFlag | O_APPEND | O_CREAT,
-		    modeFlags);
-	if (desc >= 0) {
-	    desc = ap_slack(desc, ap_SLACK_LOW);
-	    fd = ap_fdopen(desc, mode);
-	}
-    }
-    else {
-	fd = fopen(name, mode);
-    }
-    saved_errno = errno;
-    if (fd != NULL) {
-	ap_note_cleanups_for_file(a, fd);
-    }
-    ap_unblock_alarms();
-    errno = saved_errno;
-    return fd;
-}
-
-API_EXPORT(FILE *) ap_pfdopen(ap_pool_t *a, int fd, const char *mode)
-{
-    FILE *f;
-    int saved_errno;
-
-    ap_block_alarms();
-    f = ap_fdopen(fd, mode);
-    saved_errno = errno;
-    if (f != NULL) {
-	ap_note_cleanups_for_file(a, f);
-    }
-    ap_unblock_alarms();
-    errno = saved_errno;
-    return f;
-}
-
-
-API_EXPORT(int) ap_pfclose(ap_pool_t *a, FILE *fd)
-{
-    int res;
-
-    ap_block_alarms();
-    res = fclose(fd);
-    ap_kill_cleanup(a, (void *) fd, file_cleanup);
-    ap_unblock_alarms();
-    return res;
-}
-
-/*
- * DIR * with cleanup
- */
-
-static void dir_cleanup(void *dv)
-{
-    closedir((DIR *) dv);
-}
-
-API_EXPORT(DIR *) ap_popendir(ap_pool_t *p, const char *name)
-{
-    DIR *d;
-    int save_errno;
-
-    ap_block_alarms();
-    d = opendir(name);
-    if (d == NULL) {
-	save_errno = errno;
-	ap_unblock_alarms();
-	errno = save_errno;
-	return NULL;
-    }
-    ap_register_cleanup(p, (void *) d, dir_cleanup, dir_cleanup);
-    ap_unblock_alarms();
-    return d;
-}
-
-API_EXPORT(void) ap_pclosedir(ap_pool_t *p, DIR * d)
-{
-    ap_block_alarms();
-    ap_kill_cleanup(p, (void *) d, dir_cleanup);
-    closedir(d);
-    ap_unblock_alarms();
-}
-
-/*****************************************************************
- *
- * Files and file descriptors; these are just an application of the
- * generic cleanup interface.
- */
-
-static void socket_cleanup(void *fdv)
-{
-    closesocket((int) (long) fdv);
-}
-
-API_EXPORT(void) ap_note_cleanups_for_socket(ap_pool_t *p, int fd)
-{
-    ap_register_cleanup(p, (void *) (long) fd, socket_cleanup,
-			 socket_cleanup);
-}
-
-API_EXPORT(void) ap_kill_cleanups_for_socket(ap_pool_t *p, int sock)
-{
-    ap_kill_cleanup(p, (void *) (long) sock, socket_cleanup);
-}
-
-API_EXPORT(int) ap_psocket(ap_pool_t *p, int domain, int type, int protocol)
-{
-    int fd;
-
-    ap_block_alarms();
-    fd = socket(domain, type, protocol);
-    if (fd == -1) {
-	int save_errno = errno;
-	ap_unblock_alarms();
-	errno = save_errno;
-	return -1;
-    }
-    ap_note_cleanups_for_socket(p, fd);
-    ap_unblock_alarms();
-    return fd;
-}
-
-API_EXPORT(int) ap_pclosesocket(ap_pool_t *a, int sock)
-{
-    int res;
-    int save_errno;
-
-    ap_block_alarms();
-    res = closesocket(sock);
-#ifdef WIN32
-    errno = WSAGetLastError();
-#endif 
-    save_errno = errno;
-    ap_kill_cleanup(a, (void *) (long) sock, socket_cleanup);
-    ap_unblock_alarms();
-    errno = save_errno;
-    return res;
-}
-
-
-/*
- * Here's a pool-based interface to POSIX regex's regcomp().
- * Note that we return regex_t instead of being passed one.
- * The reason is that if you use an already-used regex_t structure,
- * the memory that you've already allocated gets forgotten, and
- * regfree() doesn't clear it. So we don't allow it.
- */
-
-static void regex_cleanup(void *preg)
-{
-    regfree((regex_t *) preg);
-}
-
-API_EXPORT(regex_t *) ap_pregcomp(ap_pool_t *p, const char *pattern,
-				   int cflags)
-{
-    regex_t *preg = ap_palloc(p, sizeof(regex_t));
-
-    if (regcomp(preg, pattern, cflags)) {
-	return NULL;
-    }
-
-    ap_register_cleanup(p, (void *) preg, regex_cleanup, regex_cleanup);
-
-    return preg;
-}
-
-
-API_EXPORT(void) ap_pregfree(ap_pool_t *p, regex_t * reg)
-{
-    ap_block_alarms();
-    regfree(reg);
-    ap_kill_cleanup(p, (void *) reg, regex_cleanup);
-    ap_unblock_alarms();
-}
-#endif /* if 0 not really needed anymore.  APR takes care of this. */
-/*****************************************************************
- *
- * More grotty system stuff... subprocesses.  Frump.  These don't use
- * the generic cleanup interface because I don't want multiple
- * subprocesses to result in multiple three-second pauses; the
- * subprocesses have to be "freed" all at once.  If someone comes
- * along with another resource they want to allocate which has the
- * same property, we might want to fold support for that into the
- * generic interface, but for now, it's a special case
- */
-
-API_EXPORT(void) ap_note_subprocess(struct context_t *a, pid_t pid,
-				     enum kill_conditions how)
-{
-    struct process_chain *new =
-    (struct process_chain *) ap_palloc(a, sizeof(struct process_chain));
-
-    new->pid = pid;
-    new->kill_how = how;
-    new->next = a->pool->subprocesses;
-    a->pool->subprocesses = new;
-}
-
-#ifdef WIN32
-#define os_pipe(fds) _pipe(fds, 512, O_BINARY | O_NOINHERIT)
-#else
-#define os_pipe(fds) pipe(fds)
-#endif /* WIN32 */
-
-/* for ap_fdopen, to get binary mode */
-#if defined (OS2) || defined (WIN32)
-#define BINMODE	"b"
-#else
-#define BINMODE
-#endif
-
-#if 0
-static pid_t spawn_child_core(ap_pool_t *p,
-			      int (*func) (void *, ap_child_info_t *),
-			      void *data,enum kill_conditions kill_how,
-			      int *pipe_in, int *pipe_out, int *pipe_err)
-{
-    pid_t pid;
-    int in_fds[2];
-    int out_fds[2];
-    int err_fds[2];
-    int save_errno;
-
-    if (pipe_in && os_pipe(in_fds) < 0) {
-	return 0;
-    }
-
-    if (pipe_out && os_pipe(out_fds) < 0) {
-	save_errno = errno;
-	if (pipe_in) {
-	    close(in_fds[0]);
-	    close(in_fds[1]);
-	}
-	errno = save_errno;
-	return 0;
-    }
-
-    if (pipe_err && os_pipe(err_fds) < 0) {
-	save_errno = errno;
-	if (pipe_in) {
-	    close(in_fds[0]);
-	    close(in_fds[1]);
-	}
-	if (pipe_out) {
-	    close(out_fds[0]);
-	    close(out_fds[1]);
-	}
-	errno = save_errno;
-	return 0;
-    }
-
-#ifdef WIN32
-
-    {
-	HANDLE thread_handle;
-	int hStdIn, hStdOut, hStdErr;
-	int old_priority;
-	ap_child_info_t info;
-
-	(void) ap_acquire_mutex(spawn_mutex);
-	thread_handle = GetCurrentThread();	/* doesn't need to be closed */
-	old_priority = GetThreadPriority(thread_handle);
-	SetThreadPriority(thread_handle, THREAD_PRIORITY_HIGHEST);
-	/* Now do the right thing with your pipes */
-	if (pipe_in) {
-	    hStdIn = dup(fileno(stdin));
-	    if (dup2(in_fds[0], fileno(stdin))) {
-		ap_log_error(APLOG_MARK, APLOG_ERR, NULL,
-			      "dup2(stdin) failed");
-	    }
-	    close(in_fds[0]);
-	}
-	if (pipe_out) {
-	    hStdOut = dup(fileno(stdout));
-	    close(fileno(stdout));
-	    if (dup2(out_fds[1], fileno(stdout))) {
-		ap_log_error(APLOG_MARK, APLOG_ERR, NULL,
-			      "dup2(stdout) failed");
-	    }
-	    close(out_fds[1]);
-	}
-	if (pipe_err) {
-	    hStdErr = dup(fileno(stderr));
-	    if (dup2(err_fds[1], fileno(stderr))) {
-		ap_log_error(APLOG_MARK, APLOG_ERR, NULL,
-			      "dup2(stdin) failed");
-	    }
-	    close(err_fds[1]);
-	}
-
-	info.hPipeInputRead   = GetStdHandle(STD_INPUT_HANDLE);
-	info.hPipeOutputWrite = GetStdHandle(STD_OUTPUT_HANDLE);
-	info.hPipeErrorWrite  = GetStdHandle(STD_ERROR_HANDLE);
-
-	pid = (*func) (data, &info);
-        if (pid == -1) {
-	    pid = 0;   /* map Win32 error code onto Unix default */
-	}
-
-        if (!pid) {
-	    save_errno = errno;
-	    close(in_fds[1]);
-	    close(out_fds[0]);
-	    close(err_fds[0]);
-	}
-
-	/* restore the original stdin, stdout and stderr */
-	if (pipe_in) {
-	    dup2(hStdIn, fileno(stdin));
-	    close(hStdIn);
-        }
-	if (pipe_out) {
-	    dup2(hStdOut, fileno(stdout));
-	    close(hStdOut);
-	}
-	if (pipe_err) {
-	    dup2(hStdErr, fileno(stderr));
-	    close(hStdErr);
-	}
-
-        if (pid) {
-	    ap_note_subprocess(p, pid, kill_how);
-	    if (pipe_in) {
-		*pipe_in = in_fds[1];
-	    }
-	    if (pipe_out) {
-		*pipe_out = out_fds[0];
-	    }
-	    if (pipe_err) {
-		*pipe_err = err_fds[0];
-	    }
-	}
-	SetThreadPriority(thread_handle, old_priority);
-	(void) ap_release_mutex(spawn_mutex);
-	/*
-	 * go on to the end of the function, where you can
-	 * unblock alarms and return the pid
-	 */
-
-    }
-#elif defined(OS2)
-    {
-        int save_in=-1, save_out=-1, save_err=-1;
-        
-        if (pipe_out) {
-            save_out = dup(STDOUT_FILENO);
-            dup2(out_fds[1], STDOUT_FILENO);
-            close(out_fds[1]);
-        }
-
-        if (pipe_in) {
-            save_in = dup(STDIN_FILENO);
-            dup2(in_fds[0], STDIN_FILENO);
-            close(in_fds[0]);
-        }
-
-        if (pipe_err) {
-            save_err = dup(STDERR_FILENO);
-            dup2(err_fds[1], STDERR_FILENO);
-            close(err_fds[1]);
-        }
-    
-        pid = func(data, NULL);
-    
-        if (pid) {
-            ap_note_subprocess(p, pid, kill_how);
-	}
-
-        if (pipe_out) {
-            close(STDOUT_FILENO);
-            dup2(save_out, STDOUT_FILENO);
-            close(save_out);
-            *pipe_out = out_fds[0];
-        }
-
-        if (pipe_in) {
-            close(STDIN_FILENO);
-            dup2(save_in, STDIN_FILENO);
-            close(save_in);
-            *pipe_in = in_fds[1];
-        }
-
-        if (pipe_err) {
-            close(STDERR_FILENO);
-            dup2(save_err, STDERR_FILENO);
-            close(save_err);
-            *pipe_err = err_fds[0];
-        }
-    }
-#elif defined(TPF)
-   return (pid = ap_tpf_spawn_child(p, func, data, kill_how,	
-				     pipe_in, pipe_out, pipe_err, out_fds,
-				     in_fds, err_fds));
-#else
-
-    if ((pid = fork()) < 0) {
-	save_errno = errno;
-	if (pipe_in) {
-	    close(in_fds[0]);
-	    close(in_fds[1]);
-	}
-	if (pipe_out) {
-	    close(out_fds[0]);
-	    close(out_fds[1]);
-	}
-	if (pipe_err) {
-	    close(err_fds[0]);
-	    close(err_fds[1]);
-	}
-	errno = save_errno;
-	return 0;
-    }
-
-    if (!pid) {
-	/* Child process */
-	RAISE_SIGSTOP(SPAWN_CHILD);
-
-	if (pipe_out) {
-	    close(out_fds[0]);
-	    dup2(out_fds[1], STDOUT_FILENO);
-	    close(out_fds[1]);
-	}
-
-	if (pipe_in) {
-	    close(in_fds[1]);
-	    dup2(in_fds[0], STDIN_FILENO);
-	    close(in_fds[0]);
-	}
-
-	if (pipe_err) {
-	    close(err_fds[0]);
-	    dup2(err_fds[1], STDERR_FILENO);
-	    close(err_fds[1]);
-	}
-
-	/*
-	 * HP-UX SIGCHLD fix goes here, if someone will remind me
-	 * what it is...
-	 */
-	signal(SIGCHLD, SIG_DFL);	/* Was that it? */
-
-	func(data, NULL);
-	exit(1);	/* Should only get here if the exec in func() failed */
-    }
-
-    /* Parent process */
-
-    ap_note_subprocess(p, pid, kill_how);
-
-    if (pipe_out) {
-	close(out_fds[1]);
-	*pipe_out = out_fds[0];
-    }
-
-    if (pipe_in) {
-	close(in_fds[0]);
-	*pipe_in = in_fds[1];
-    }
-
-    if (pipe_err) {
-	close(err_fds[1]);
-	*pipe_err = err_fds[0];
-    }
-#endif /* WIN32 */
-
-    return pid;
-}
-
-
-API_EXPORT(int) ap_spawn_child(ap_pool_t *p,
-				int (*func) (void *v, ap_child_info_t *c),
-				void *data, enum kill_conditions kill_how,
-				FILE **pipe_in, FILE **pipe_out,
-				FILE **pipe_err)
-{
-    int fd_in, fd_out, fd_err;
-    pid_t pid;
-    int save_errno;
-
-    ap_block_alarms();
-
-    pid = spawn_child_core(p, func, data, kill_how,
-			   pipe_in ? &fd_in : NULL,
-			   pipe_out ? &fd_out : NULL,
-			   pipe_err ? &fd_err : NULL);
-
-    if (pid == 0) {
-	save_errno = errno;
-	ap_unblock_alarms();
-	errno = save_errno;
-	return 0;
-    }
-
-    if (pipe_out) {
-	*pipe_out = ap_fdopen(fd_out, "r" BINMODE);
-	if (*pipe_out) {
-	    ap_note_cleanups_for_file(p, *pipe_out);
-	}
-	else {
-	    close(fd_out);
-	}
-    }
-
-    if (pipe_in) {
-	*pipe_in = ap_fdopen(fd_in, "w" BINMODE);
-	if (*pipe_in) {
-	    ap_note_cleanups_for_file(p, *pipe_in);
-	}
-	else {
-	    close(fd_in);
-	}
-    }
-
-    if (pipe_err) {
-	*pipe_err = ap_fdopen(fd_err, "r" BINMODE);
-	if (*pipe_err) {
-	    ap_note_cleanups_for_file(p, *pipe_err);
-	}
-	else {
-	    close(fd_err);
-	}
-    }
-
-    ap_unblock_alarms();
-    return pid;
-}
-
-API_EXPORT(int) ap_bspawn_child(ap_pool_t *p,
-				 int (*func) (void *v, ap_child_info_t *c),
-				 void *data, enum kill_conditions kill_how,
-				 BUFF **pipe_in, BUFF **pipe_out,
-				 BUFF **pipe_err)
-{
-#ifdef WIN32
-    SECURITY_ATTRIBUTES sa = {0};  
-    HANDLE hPipeOutputRead  = NULL;
-    HANDLE hPipeOutputWrite = NULL;
-    HANDLE hPipeInputRead   = NULL;
-    HANDLE hPipeInputWrite  = NULL;
-    HANDLE hPipeErrorRead   = NULL;
-    HANDLE hPipeErrorWrite  = NULL;
-    HANDLE hPipeInputWriteDup = NULL;
-    HANDLE hPipeOutputReadDup = NULL;
-    HANDLE hPipeErrorReadDup  = NULL;
-    HANDLE hCurrentProcess;
-    pid_t pid = 0;
-    ap_child_info_t info;
-
-    ap_block_alarms();
-
-    /*
-     * First thing to do is to create the pipes that we will use
-     * for stdin, stdout, and stderr in the child process.
-     */      
-    sa.nLength = sizeof(sa);
-    sa.bInheritHandle = TRUE;
-    sa.lpSecurityDescriptor = NULL;
-
-
-    /* Create pipes for standard input/output/error redirection. */
-    if (pipe_in && !CreatePipe(&hPipeInputRead, &hPipeInputWrite, &sa, 0)) {
-	return 0;
-    }
-
-    if (pipe_out && !CreatePipe(&hPipeOutputRead, &hPipeOutputWrite, &sa, 0)) {
-	if (pipe_in) {
-	    CloseHandle(hPipeInputRead);
-	    CloseHandle(hPipeInputWrite);
-	}
-	return 0;
-    }
-
-    if (pipe_err && !CreatePipe(&hPipeErrorRead, &hPipeErrorWrite, &sa, 0)) {
-	if (pipe_in) {
-	    CloseHandle(hPipeInputRead);
-	    CloseHandle(hPipeInputWrite);
-	}
-	if (pipe_out) {
-	    CloseHandle(hPipeOutputRead);
-	    CloseHandle(hPipeOutputWrite);
-	}
-	return 0;
-    }
-    /*
-     * When the pipe handles are created, the security descriptor
-     * indicates that the handle can be inherited.  However, we do not
-     * want the server side handles to the pipe to be inherited by the
-     * child CGI process. If the child CGI does inherit the server
-     * side handles, then the child may be left around if the server
-     * closes its handles (e.g. if the http connection is aborted),
-     * because the child will have a valid copy of handles to both
-     * sides of the pipes, and no I/O error will occur.  Microsoft
-     * recommends using DuplicateHandle to turn off the inherit bit
-     * under NT and Win95.
-     */
-    hCurrentProcess = GetCurrentProcess();
-    if ((pipe_in && !DuplicateHandle(hCurrentProcess, hPipeInputWrite,
-				     hCurrentProcess,
-				     &hPipeInputWriteDup, 0, FALSE,
-				     DUPLICATE_SAME_ACCESS))
-	|| (pipe_out && !DuplicateHandle(hCurrentProcess, hPipeOutputRead,
-					 hCurrentProcess, &hPipeOutputReadDup,
-					 0, FALSE, DUPLICATE_SAME_ACCESS))
-	|| (pipe_err && !DuplicateHandle(hCurrentProcess, hPipeErrorRead,
-					 hCurrentProcess, &hPipeErrorReadDup,
-					 0, FALSE, DUPLICATE_SAME_ACCESS))) {
-	if (pipe_in) {
-	    CloseHandle(hPipeInputRead);
-	    CloseHandle(hPipeInputWrite);
-	}
-	if (pipe_out) {
-	    CloseHandle(hPipeOutputRead);
-	    CloseHandle(hPipeOutputWrite);
-	}
-	if (pipe_err) {
-	    CloseHandle(hPipeErrorRead);
-	    CloseHandle(hPipeErrorWrite);
-	}
-	return 0;
-    }
-    else {
-	if (pipe_in) {
-	    CloseHandle(hPipeInputWrite);
-	    hPipeInputWrite = hPipeInputWriteDup;
-	}
-	if (pipe_out) {
-	    CloseHandle(hPipeOutputRead);
-	    hPipeOutputRead = hPipeOutputReadDup;
-	}
-	if (pipe_err) {
-	    CloseHandle(hPipeErrorRead);
-	    hPipeErrorRead = hPipeErrorReadDup;
-	}
-    }
-
-    /* The script writes stdout to this pipe handle */
-    info.hPipeOutputWrite = hPipeOutputWrite;  
-
-    /* The script reads stdin from this pipe handle */
-    info.hPipeInputRead = hPipeInputRead;
-
-    /* The script writes stderr to this pipe handle */
-    info.hPipeErrorWrite = hPipeErrorWrite;    
-     
-    /*
-     *  Try to launch the CGI.  Under the covers, this call 
-     *  will try to pick up the appropriate interpreter if 
-     *  one is needed.
-     */
-    pid = func(data, &info);
-    if (pid == -1) {
-        /* Things didn't work, so cleanup */
-        pid = 0;   /* map Win32 error code onto Unix default */
-        CloseHandle(hPipeOutputRead);
-        CloseHandle(hPipeInputWrite);
-        CloseHandle(hPipeErrorRead);
-    }
-    else {
-        if (pipe_out) {
-            /*
-             *  This pipe represents stdout for the script, 
-             *  so we read from this pipe.
-             */
-	    /* Create a read buffer */
-            *pipe_out = ap_bcreate(p, B_RD);
-
-	    /* Setup the cleanup routine for the handle */
-            ap_note_cleanups_for_h(p, hPipeOutputRead);   
-
-	    /* Associate the handle with the new buffer */
-            ap_bpushh(*pipe_out, hPipeOutputRead);
-        }
-        
-        if (pipe_in) {
-            /*
-             *  This pipe represents stdin for the script, so we 
-             *  write to this pipe.
-             */
-	    /* Create a write buffer */
-            *pipe_in = ap_bcreate(p, B_WR);             
-
-	    /* Setup the cleanup routine for the handle */
-            ap_note_cleanups_for_h(p, hPipeInputWrite);
-
-	    /* Associate the handle with the new buffer */
-            ap_bpushh(*pipe_in, hPipeInputWrite);
-
-        }
-      
-        if (pipe_err) {
-            /*
-             *  This pipe represents stderr for the script, so 
-             *  we read from this pipe.
-             */
-	    /* Create a read buffer */
-            *pipe_err = ap_bcreate(p, B_RD);
-
-	    /* Setup the cleanup routine for the handle */
-            ap_note_cleanups_for_h(p, hPipeErrorRead);
-
-	    /* Associate the handle with the new buffer */
-            ap_bpushh(*pipe_err, hPipeErrorRead);
-        }
-    }  
-
-
-    /*
-     * Now that handles have been inherited, close them to be safe.
-     * You don't want to read or write to them accidentally, and we
-     * sure don't want to have a handle leak.
-     */
-    CloseHandle(hPipeOutputWrite);
-    CloseHandle(hPipeInputRead);
-    CloseHandle(hPipeErrorWrite);
-
-#else
-    int fd_in, fd_out, fd_err;
-    pid_t pid;
-    int save_errno;
-
-    ap_block_alarms();
-
-    pid = spawn_child_core(p, func, data, kill_how,
-			   pipe_in ? &fd_in : NULL,
-			   pipe_out ? &fd_out : NULL,
-			   pipe_err ? &fd_err : NULL);
-
-    if (pid == 0) {
-	save_errno = errno;
-	ap_unblock_alarms();
-	errno = save_errno;
-	return 0;
-    }
-
-    if (pipe_out) {
-	*pipe_out = ap_bcreate(p, B_RD);
-	ap_note_cleanups_for_fd(p, fd_out);
-	ap_bpushfd(*pipe_out, fd_out, fd_out);
-    }
-
-    if (pipe_in) {
-	*pipe_in = ap_bcreate(p, B_WR);
-	ap_note_cleanups_for_fd(p, fd_in);
-	ap_bpushfd(*pipe_in, fd_in, fd_in);
-    }
-
-    if (pipe_err) {
-	*pipe_err = ap_bcreate(p, B_RD);
-	ap_note_cleanups_for_fd(p, fd_err);
-	ap_bpushfd(*pipe_err, fd_err, fd_err);
-    }
-#endif
-
-    ap_unblock_alarms();
-    return pid;
-}
-#endif
-
-static void free_proc_chain(struct process_chain *procs)
-{
-    /* Dispose of the subprocesses we've spawned off in the course of
-     * whatever it was we're cleaning up now.  This may involve killing
-     * some of them off...
-     */
-
-    struct process_chain *p;
-    int need_timeout = 0;
-    int status;
-
-    if (procs == NULL) {
-	return;			/* No work.  Whew! */
-    }
-
-    /* First, check to see if we need to do the SIGTERM, sleep, SIGKILL
-     * dance with any of the processes we're cleaning up.  If we've got
-     * any kill-on-sight subprocesses, ditch them now as well, so they
-     * don't waste any more cycles doing whatever it is that they shouldn't
-     * be doing anymore.
-     */
-#ifdef WIN32
-    /* Pick up all defunct processes */
-    for (p = procs; p; p = p->next) {
-	if (GetExitCodeProcess((HANDLE) p->pid, &status)) {
-	    p->kill_how = kill_never;
-	}
-    }
-
-
-    for (p = procs; p; p = p->next) {
-	if (p->kill_how == kill_after_timeout) {
-	    need_timeout = 1;
-	}
-	else if (p->kill_how == kill_always) {
-	    TerminateProcess((HANDLE) p->pid, 1);
-	}
-    }
-    /* Sleep only if we have to... */
-
-    if (need_timeout) {
-	sleep(3);
-    }
-
-    /* OK, the scripts we just timed out for have had a chance to clean up
-     * --- now, just get rid of them, and also clean up the system accounting
-     * goop...
-     */
-
-    for (p = procs; p; p = p->next) {
-	if (p->kill_how == kill_after_timeout) {
-	    TerminateProcess((HANDLE) p->pid, 1);
-	}
-    }
-
-    for (p = procs; p; p = p->next) {
-	CloseHandle((HANDLE) p->pid);
-    }
-#else
-#ifndef NEED_WAITPID
-    /* Pick up all defunct processes */
-    for (p = procs; p; p = p->next) {
-	if (waitpid(p->pid, (int *) 0, WNOHANG) > 0) {
-	    p->kill_how = kill_never;
-	}
-    }
-#endif
-
-    for (p = procs; p; p = p->next) {
-	if ((p->kill_how == kill_after_timeout)
-	    || (p->kill_how == kill_only_once)) {
-	    /*
-	     * Subprocess may be dead already.  Only need the timeout if not.
-	     */
-	    if (kill(p->pid, SIGTERM) != -1) {
-		need_timeout = 1;
-	    }
-	}
-	else if (p->kill_how == kill_always) {
-	    kill(p->pid, SIGKILL);
-	}
-    }
-
-    /* Sleep only if we have to... */
-
-    if (need_timeout) {
-	sleep(3);
-    }
-
-    /* OK, the scripts we just timed out for have had a chance to clean up
-     * --- now, just get rid of them, and also clean up the system accounting
-     * goop...
-     */
-
-    for (p = procs; p; p = p->next) {
-
-	if (p->kill_how == kill_after_timeout) {
-	    kill(p->pid, SIGKILL);
-	}
-
-	if (p->kill_how != kill_never) {
-	    waitpid(p->pid, &status, 0);
-	}
-    }
-#endif /* WIN32 */
-}