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authorUlrich Drepper <drepper@redhat.com>1997-01-28 03:59:29 +0000
committerUlrich Drepper <drepper@redhat.com>1997-01-28 03:59:29 +0000
commit831372e7c1bb907f9f2c3d78909b15717b8ac095 (patch)
treecaaa80503af0be017a6a88df30dcf295cdc2e63c /posix
parentbdf289b22254f7eb10989ccd933cfd9ee7b8da92 (diff)
downloadglibc-831372e7c1bb907f9f2c3d78909b15717b8ac095.tar.gz
update from main archive 970127cvs/libc-970128
1997-01-28 04:23 Ulrich Drepper <drepper@cygnus.com> * version.h (VERSION): Bump to 2.0.1. * posix/getopt.c: Handle another problem introduced by the nonoption_flags array. We must be able to work with reordered argv arrays. Reported by Andreas Schwab. 1997-01-28 02:38 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/i386/clone.S: Correct handling of new 1997-01-27 17:34 Thorsten Kukuk <kukuk@weber.uni-paderborn.de> * nis/rpcsvc/yp_prot.h: Correct definitions and types in file so that it works with yp.h. 1997-01-27 13:28 Ulrich Drepper <drepper@cygnus.com> * malloc/malloc.h (__malloc_initialized) [_LIBC]: Define as __libc_malloc_initialized so that this variable is not shared with other users of GNU malloc. Suggested by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>. * mcheck.h: Correct typo. Use malloc/ instead of new-malloc/. * sysdeps/i386/Makefile (CFLAGS-dl-load.c, CFLAGS-dl-reloc.c): New variables to prevent warnings. * sysdeps/i386/dl-machine.h (fixup): Add prototype and declare using attribute regparm. (ELF_MACHINE_RUNTIME_TRAMPOLINE): Rewrite so that no register is changed by the resolver code. 1997-01-14 14:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * malloc/malloc.c (weak_variable): Define. (__malloc_initialize_hook, __free_hook, __malloc_hook, __realloc_hook, __memalign_hook): Make them weak definitions. 1997-01-26 11:35 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/getdents.c: Don't write beyond buffer limits, correctly take structure padding into account, use correct offset when resetting the stream, change heuristic to assume an average name length of 14 characters. 1997-01-25 18:06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/alpha/termbits.h: Protect against multiple inclusion. See ChangeLog.6 for earlier changes.
Diffstat (limited to 'posix')
-rw-r--r--posix/getopt.c71
1 files changed, 63 insertions, 8 deletions
diff --git a/posix/getopt.c b/posix/getopt.c
index eac576b83e..78021bb977 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -253,7 +253,8 @@ static int last_nonopt;
/* Bash 2.0 gives us an environment variable containing flags
indicating ARGV elements that should not be considered arguments. */
-static const char *nonoption_flags;
+static char *nonoption_flags;
+static int nonoption_flags_max_len;
static int nonoption_flags_len;
static int original_argc;
@@ -272,6 +273,16 @@ store_args (int argc, char *const *argv)
original_argv = argv;
}
text_set_element (__libc_subinit, store_args);
+
+# define SWAP_FLAGS(ch1, ch2) \
+ if (nonoption_flags_len > 0) \
+ { \
+ char __tmp = nonoption_flags[ch1]; \
+ nonoption_flags[ch1] = nonoption_flags[ch2]; \
+ nonoption_flags[ch2] = __tmp; \
+ }
+#else
+# define SWAP_FLAGS(ch1, ch2)
#endif
/* Exchange two adjacent subsequences of ARGV.
@@ -301,6 +312,28 @@ exchange (argv)
It leaves the longer segment in the right place overall,
but it consists of two parts that need to be swapped next. */
+#ifdef _LIBC
+ /* First make sure the handling of the `nonoption_flags' string can
+ work normally. Our top argument must be in the range of the
+ string. */
+ if (nonoption_flags_len != 0 && top >= nonoption_flags_max_len)
+ {
+ /* We must extend the array. The user plays games with us and
+ presents new arguments. */
+ char *new_str = malloc (top + 1);
+ if (new_str == NULL)
+ nonoption_flags_len = nonoption_flags_max_len = 0;
+ else
+ {
+ memcpy (new_str, nonoption_flags, nonoption_flags_max_len);
+ memset (&new_str[nonoption_flags_max_len], '\0',
+ top + 1 - nonoption_flags_max_len);
+ nonoption_flags_max_len = top + 1;
+ nonoption_flags = new_str;
+ }
+ }
+#endif
+
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
@@ -315,6 +348,7 @@ exchange (argv)
tem = argv[bottom + i];
argv[bottom + i] = argv[top - (middle - bottom) + i];
argv[top - (middle - bottom) + i] = tem;
+ SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
}
/* Exclude the moved bottom segment from further swapping. */
top -= len;
@@ -331,6 +365,7 @@ exchange (argv)
tem = argv[bottom + i];
argv[bottom + i] = argv[middle + i];
argv[middle + i] = tem;
+ SWAP_FLAGS (bottom + i, middle + i);
}
/* Exclude the moved top segment from further swapping. */
bottom += len;
@@ -389,13 +424,33 @@ _getopt_initialize (argc, argv, optstring)
command it runs, specifying which ARGV elements are the results of
file name wildcard expansion and therefore should not be
considered as options. */
- char var[100];
- sprintf (var, "_%d_GNU_nonoption_argv_flags_", getpid ());
- nonoption_flags = getenv (var);
- if (nonoption_flags == NULL)
- nonoption_flags_len = 0;
- else
- nonoption_flags_len = strlen (nonoption_flags);
+
+ if (nonoption_flags_max_len == 0)
+ {
+ char var[100];
+ const char *orig_str;
+ sprintf (var, "_%d_GNU_nonoption_argv_flags_", getpid ());
+ orig_str = getenv (var);
+ if (orig_str == NULL || orig_str[0] == '\0')
+ nonoption_flags_max_len = -1;
+ else
+ {
+ int len = nonoption_flags_max_len = strlen (orig_str);
+ if (nonoption_flags_max_len < argc)
+ nonoption_flags_max_len = argc;
+ nonoption_flags = (char *) malloc (nonoption_flags_max_len);
+ if (nonoption_flags == NULL)
+ nonoption_flags_max_len = -1;
+ else
+ {
+ memcpy (nonoption_flags, orig_str, len);
+ memset (&nonoption_flags[len], '\0',
+ nonoption_flags_max_len - len);
+ }
+ }
+ }
+
+ nonoption_flags_len = nonoption_flags_max_len;
}
else
nonoption_flags_len = 0;