summaryrefslogtreecommitdiff
path: root/argp/argp-parse.c
diff options
context:
space:
mode:
Diffstat (limited to 'argp/argp-parse.c')
-rw-r--r--argp/argp-parse.c102
1 files changed, 30 insertions, 72 deletions
diff --git a/argp/argp-parse.c b/argp/argp-parse.c
index 47223dc597..4718ced81d 100644
--- a/argp/argp-parse.c
+++ b/argp/argp-parse.c
@@ -1,5 +1,5 @@
/* Hierarchial argument parsing, layered over getopt
- Copyright (C) 1995-2000, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1995-2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>.
@@ -42,6 +42,7 @@ char *alloca ();
#include <unistd.h>
#include <limits.h>
#include <getopt.h>
+#include <getopt_int.h>
#ifndef _
/* This is for other GNU distributions with internationalized messages.
@@ -62,14 +63,6 @@ char *alloca ();
# define N_(msgid) (msgid)
#endif
-#if _LIBC - 0
-#include <bits/libc-lock.h>
-#else
-#ifdef HAVE_CTHREADS_H
-#include <cthreads.h>
-#endif
-#endif /* _LIBC */
-
#include "argp.h"
#include "argp-namefrob.h"
@@ -97,14 +90,8 @@ char *alloca ();
/* When argp is given the --HANG switch, _ARGP_HANG is set and argp will sleep
for one second intervals, decrementing _ARGP_HANG until it's zero. Thus
you can force the program to continue by attaching a debugger and setting
- it to 0 yourself.
-
- XXX This variable used to be exported. But there seems to be no
- need, at least not inside libc. */
-#ifdef _LIBC
-static
-#endif
-volatile int _argp_hang;
+ it to 0 yourself. */
+static volatile int _argp_hang;
#define OPT_PROGNAME -2
#define OPT_USAGE -3
@@ -223,42 +210,7 @@ find_long_option (struct option *long_options, const char *name)
else
return -1;
}
-
-/* If we can, we regulate access to getopt, which is non-reentrant, with a
- mutex. Since the case we're trying to guard against is two different
- threads interfering, and it's possible that someone might want to call
- argp_parse recursively (they're careful), we use a recursive lock if
- possible. */
-
-#if _LIBC - 0
-
-__libc_lock_define_initialized_recursive (static, getopt_lock)
-#define LOCK_GETOPT __libc_lock_lock_recursive (getopt_lock)
-#define UNLOCK_GETOPT __libc_lock_unlock_recursive (getopt_lock)
-
-#else /* !_LIBC */
-#ifdef HAVE_CTHREADS_H
-static struct mutex getopt_lock = MUTEX_INITIALIZER;
-#define LOCK_GETOPT mutex_lock (&getopt_lock)
-#define UNLOCK_GETOPT mutex_unlock (&getopt_lock)
-
-#else /* !HAVE_CTHREADS_H */
-
-#define LOCK_GETOPT (void)0
-#define UNLOCK_GETOPT (void)0
-
-#endif /* HAVE_CTHREADS_H */
-#endif /* _LIBC */
-
-/* This hack to allow programs that know what's going on to call argp
- recursively. If someday argp is changed not to use the non-reentrant
- getopt interface, we can get rid of this shit. XXX */
-void
-_argp_unlock_xxx (void)
-{
- UNLOCK_GETOPT;
-}
/* The state of a `group' during parsing. Each group corresponds to a
particular argp structure from the tree of such descending from the top
@@ -320,6 +272,8 @@ struct parser
/* LONG_OPTS is the array of getop long option structures for the union of
all the groups of options. */
struct option *long_opts;
+ /* OPT_DATA is the getopt data used for the re-entrant getopt. */
+ struct _getopt_data opt_data;
/* States of the various parsing groups. */
struct group *groups;
@@ -531,6 +485,7 @@ parser_init (struct parser *parser, const struct argp *argp,
error_t err = 0;
struct group *group;
struct parser_sizes szs;
+ struct _getopt_data opt_data = _GETOPT_DATA_INITIALIZER;
szs.short_len = (flags & ARGP_NO_ARGS) ? 0 : 1;
szs.long_len = 0;
@@ -554,6 +509,7 @@ parser_init (struct parser *parser, const struct argp *argp,
parser->child_inputs = parser->storage + GLEN;
parser->long_opts = parser->storage + GLEN + CLEN;
parser->short_opts = parser->storage + GLEN + CLEN + LLEN;
+ parser->opt_data = opt_data;
memset (parser->child_inputs, 0, szs.num_child_inputs * sizeof (void *));
parser_convert (parser, argp, flags);
@@ -597,19 +553,16 @@ parser_init (struct parser *parser, const struct argp *argp,
if (err)
return err;
- /* Getopt is (currently) non-reentrant. */
- LOCK_GETOPT;
-
if (parser->state.flags & ARGP_NO_ERRS)
{
- opterr = 0;
+ parser->opt_data.opterr = 0;
if (parser->state.flags & ARGP_PARSE_ARGV0)
/* getopt always skips ARGV[0], so we have to fake it out. As long
as OPTERR is 0, then it shouldn't actually try to access it. */
parser->state.argv--, parser->state.argc++;
}
else
- opterr = 1; /* Print error messages. */
+ parser->opt_data.opterr = 1; /* Print error messages. */
if (parser->state.argv == argv && argv[0])
/* There's an argv[0]; use it for messages. */
@@ -630,8 +583,6 @@ parser_finalize (struct parser *parser,
{
struct group *group;
- UNLOCK_GETOPT;
-
if (err == EBADKEY && arg_ebadkey)
/* Suppress errors generated by unparsed arguments. */
err = 0;
@@ -793,7 +744,8 @@ parser_parse_opt (struct parser *parser, int opt, char *val)
for (group = parser->groups; group < parser->egroup; group++)
if (group->short_end > short_index)
{
- err = group_parse (group, &parser->state, opt, optarg);
+ err = group_parse (group, &parser->state, opt,
+ parser->opt_data.optarg);
break;
}
}
@@ -802,7 +754,8 @@ parser_parse_opt (struct parser *parser, int opt, char *val)
the user value in order to preserve the sign. */
err =
group_parse (&parser->groups[group_key - 1], &parser->state,
- (opt << GROUP_BITS) >> GROUP_BITS, optarg);
+ (opt << GROUP_BITS) >> GROUP_BITS,
+ parser->opt_data.optarg);
if (err == EBADKEY)
/* At least currently, an option not recognized is an error in the
@@ -848,15 +801,20 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
if (parser->try_getopt && !parser->state.quoted)
/* Give getopt a chance to parse this. */
{
- optind = parser->state.next; /* Put it back in OPTIND for getopt. */
- optopt = KEY_END; /* Distinguish KEY_ERR from a real option. */
+ /* Put it back in OPTIND for getopt. */
+ parser->opt_data.optind = parser->state.next;
+ /* Distinguish KEY_ERR from a real option. */
+ parser->opt_data.optopt = KEY_END;
if (parser->state.flags & ARGP_LONG_ONLY)
- opt = getopt_long_only (parser->state.argc, parser->state.argv,
- parser->short_opts, parser->long_opts, 0);
+ opt = _getopt_long_only_r (parser->state.argc, parser->state.argv,
+ parser->short_opts, parser->long_opts, 0,
+ &parser->opt_data);
else
- opt = getopt_long (parser->state.argc, parser->state.argv,
- parser->short_opts, parser->long_opts, 0);
- parser->state.next = optind; /* And see what getopt did. */
+ opt = _getopt_long_r (parser->state.argc, parser->state.argv,
+ parser->short_opts, parser->long_opts, 0,
+ &parser->opt_data);
+ /* And see what getopt did. */
+ parser->state.next = parser->opt_data.optind;
if (opt == KEY_END)
/* Getopt says there are no more options, so stop using
@@ -872,7 +830,7 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
here, whatever happens. */
parser->state.quoted = parser->state.next;
}
- else if (opt == KEY_ERR && optopt != KEY_END)
+ else if (opt == KEY_ERR && parser->opt_data.optopt != KEY_END)
/* KEY_ERR can have the same value as a valid user short
option, but in the case of a real error, getopt sets OPTOPT
to the offending character, which can never be KEY_END. */
@@ -898,15 +856,15 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
/* A non-option arg; simulate what getopt might have done. */
{
opt = KEY_ARG;
- optarg = parser->state.argv[parser->state.next++];
+ parser->opt_data.optarg = parser->state.argv[parser->state.next++];
}
}
if (opt == KEY_ARG)
/* A non-option argument; try each parser in turn. */
- err = parser_parse_arg (parser, optarg);
+ err = parser_parse_arg (parser, parser->opt_data.optarg);
else
- err = parser_parse_opt (parser, opt, optarg);
+ err = parser_parse_opt (parser, opt, parser->opt_data.optarg);
if (err == EBADKEY)
*arg_ebadkey = (opt == KEY_END || opt == KEY_ARG);
View Lorry Controller Status