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Diffstat (limited to 'intl/localealias.c')
-rw-r--r--intl/localealias.c143
1 files changed, 61 insertions, 82 deletions
diff --git a/intl/localealias.c b/intl/localealias.c
index bca555a..76f19a9 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -1,6 +1,5 @@
/* Handle aliases for locale names.
- Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
- Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+ Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -16,6 +15,13 @@
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/* Tell glibc's <string.h> to provide a prototype for mempcpy().
+ This must come before <config.h> because <config.h> may include
+ <features.h>, and once <features.h> has been included, it's too late. */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
@@ -41,35 +47,15 @@ char *alloca ();
# endif
#endif
-#if defined STDC_HEADERS || defined _LIBC
-# include <stdlib.h>
-#else
-char *getenv ();
-# ifdef HAVE_MALLOC_H
-# include <malloc.h>
-# else
-void free ();
-# endif
-#endif
+#include <stdlib.h>
-#if defined HAVE_STRING_H || defined _LIBC
-# ifndef _GNU_SOURCE
-# define _GNU_SOURCE 1
-# endif
-# include <string.h>
-#else
-# include <strings.h>
-# ifndef memcpy
-# define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
-# endif
-#endif
+#include <string.h>
#if !HAVE_STRCHR && !defined _LIBC
# ifndef strchr
# define strchr index
# endif
#endif
-#include "gettext.h"
#include "gettextP.h"
/* @@ end of prolog @@ */
@@ -80,7 +66,9 @@ void free ();
file and the name space must not be polluted. */
# define strcasecmp __strcasecmp
-# define mempcpy __mempcpy
+# ifndef mempcpy
+# define mempcpy __mempcpy
+# endif
# define HAVE_MEMPCPY 1
/* We need locking here since we can be called from different places. */
@@ -89,41 +77,27 @@ void free ();
__libc_lock_define_initialized (static, lock);
#endif
+#ifndef internal_function
+# define internal_function
+#endif
-/* For those loosing systems which don't have `alloca' we have to add
+/* For those losing systems which don't have `alloca' we have to add
some additional code emulating it. */
#ifdef HAVE_ALLOCA
-/* Nothing has to be done. */
-# define ADD_BLOCK(list, address) /* nothing */
-# define FREE_BLOCKS(list) /* nothing */
+# define freea(p) /* nothing */
#else
-struct block_list
-{
- void *address;
- struct block_list *next;
-};
-# define ADD_BLOCK(list, addr) \
- do { \
- struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \
- /* If we cannot get a free block we cannot add the new element to \
- the list. */ \
- if (newp != NULL) { \
- newp->address = (addr); \
- newp->next = (list); \
- (list) = newp; \
- } \
- } while (0)
-# define FREE_BLOCKS(list) \
- do { \
- while (list != NULL) { \
- struct block_list *old = list; \
- list = list->next; \
- free (old); \
- } \
- } while (0)
-# undef alloca
-# define alloca(size) (malloc (size))
-#endif /* have alloca */
+# define alloca(n) malloc (n)
+# define freea(p) free (p)
+#endif
+
+#if defined _LIBC_REENTRANT || defined HAVE_FGETS_UNLOCKED
+# undef fgets
+# define fgets(buf, len, s) fgets_unlocked (buf, len, s)
+#endif
+#if defined _LIBC_REENTRANT || defined HAVE_FEOF_UNLOCKED
+# undef feof
+# define feof(s) feof_unlocked (s)
+#endif
struct alias_map
@@ -133,18 +107,18 @@ struct alias_map
};
-static char *string_space = NULL;
-static size_t string_space_act = 0;
-static size_t string_space_max = 0;
+static char *string_space;
+static size_t string_space_act;
+static size_t string_space_max;
static struct alias_map *map;
-static size_t nmap = 0;
-static size_t maxmap = 0;
+static size_t nmap;
+static size_t maxmap;
/* Prototypes for local functions. */
static size_t read_alias_file PARAMS ((const char *fname, int fname_len))
internal_function;
-static void extend_alias_table PARAMS ((void));
+static int extend_alias_table PARAMS ((void));
static int alias_compare PARAMS ((const struct alias_map *map1,
const struct alias_map *map2));
@@ -190,11 +164,12 @@ _nl_expand_alias (name)
{
const char *start;
- while (locale_alias_path[0] == ':')
+ while (locale_alias_path[0] == PATH_SEPARATOR)
++locale_alias_path;
start = locale_alias_path;
- while (locale_alias_path[0] != '\0' && locale_alias_path[0] != ':')
+ while (locale_alias_path[0] != '\0'
+ && locale_alias_path[0] != PATH_SEPARATOR)
++locale_alias_path;
if (start < locale_alias_path)
@@ -217,16 +192,12 @@ read_alias_file (fname, fname_len)
const char *fname;
int fname_len;
{
-#ifndef HAVE_ALLOCA
- struct block_list *block_list = NULL;
-#endif
FILE *fp;
char *full_fname;
size_t added;
static const char aliasfile[] = "/locale.alias";
full_fname = (char *) alloca (fname_len + sizeof aliasfile);
- ADD_BLOCK (block_list, full_fname);
#ifdef HAVE_MEMPCPY
mempcpy (mempcpy (full_fname, fname, fname_len),
aliasfile, sizeof aliasfile);
@@ -236,11 +207,9 @@ read_alias_file (fname, fname_len)
#endif
fp = fopen (full_fname, "r");
+ freea (full_fname);
if (fp == NULL)
- {
- FREE_BLOCKS (block_list);
- return 0;
- }
+ return 0;
added = 0;
while (!feof (fp))
@@ -250,10 +219,10 @@ read_alias_file (fname, fname_len)
b) these fields must be usable as file names and so must not
be that long
*/
- unsigned char buf[BUFSIZ];
- unsigned char *alias;
- unsigned char *value;
- unsigned char *cp;
+ char buf[BUFSIZ];
+ char *alias;
+ char *value;
+ char *cp;
if (fgets (buf, sizeof buf, fp) == NULL)
/* EOF reached. */
@@ -312,7 +281,8 @@ read_alias_file (fname, fname_len)
*cp++ = '\0';
if (nmap >= maxmap)
- extend_alias_table ();
+ if (__builtin_expect (extend_alias_table (), 0))
+ return added;
alias_len = strlen (alias) + 1;
value_len = strlen (value) + 1;
@@ -325,10 +295,19 @@ read_alias_file (fname, fname_len)
? alias_len + value_len : 1024));
char *new_pool = (char *) realloc (string_space, new_size);
if (new_pool == NULL)
+ return added;
+
+ if (__builtin_expect (string_space != new_pool, 0))
{
- FREE_BLOCKS (block_list);
- return added;
+ size_t i;
+
+ for (i = 0; i < nmap; i++)
+ {
+ map[i].alias += new_pool - string_space;
+ map[i].value += new_pool - string_space;
+ }
}
+
string_space = new_pool;
string_space_max = new_size;
}
@@ -355,12 +334,11 @@ read_alias_file (fname, fname_len)
qsort (map, nmap, sizeof (struct alias_map),
(int (*) PARAMS ((const void *, const void *))) alias_compare);
- FREE_BLOCKS (block_list);
return added;
}
-static void
+static int
extend_alias_table ()
{
size_t new_size;
@@ -371,10 +349,11 @@ extend_alias_table ()
* sizeof (struct alias_map)));
if (new_map == NULL)
/* Simply don't extend: we don't have any more core. */
- return;
+ return -1;
map = new_map;
maxmap = new_size;
+ return 0;
}
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