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1998-03-12 13:11 Tim Waugh <tim@cyberelk.demon.co.uk> * posix/wordexp-test.c: More tests. (main): Set up arena for pathname expansion tests (in a temporary directory). (testit): Don't check word count or word vector if return value is non-zero. * posix/wordexp.c (exec_comm): Always chop off terminating linefeed (just like bash does). (parse_param): Change lots of occurrences of "if (!*env)" to "if (!env || !*env)". (parse_param): For assignment inside parameter expansion, use all expanded words in assignment rather than just the first. (parse_param): Corrected return value for parameter expansion of an unset variable when WRDE_UNDEF is in effect. (parse_dollars): Don't field-split if quoted. (wordexp): Opening brace character isn't allowed unquoted. 1998-03-12 Ulrich Drepper <drepper@cygnus.com> * elf/dlerror.c: Fix concurrency problems with error string and number. * elf/dl-deps.c (_dl_map_object_deps): Print debug info when filter/auxiliary are being loaded. 1998-03-12 14:24 Ulrich Drepper <drepper@cygnus.com> * elf/dlerror.c (last_object_name): Removed. (dlerror): Don't use last_object_name. (_dl_error_run): Omit second argument to _dl_catch_error. * elf/dl-error.c (struct catch): Remove objname member. (_dl_signal_error): Construct string including objname when given. (_dl_catch_error): Remove objname handling. * elf/link.h (_dl_catch_error): Fix prototype and comment. * elf/rtld.c (dl_main): Call _dl_catch_error correctly. * elf/dl-deps.c (_dl_map_objet_deps): Likewise. * nss/nsswitch.c (nss_dlerror_run): Likewise. * iconv/gconv_dl.c (dlerror_run): Likewise. [Corrects PR libc/501].
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/* Convert Inet number to ASCII representation.
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Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <arpa/inet.h>
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#include <bits/libc-lock.h>
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/* The interface of this function is completely stupid, it requires a
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static buffer. We relax this a bit in that we allow at least one
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buffer for each thread. */
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/* This is the key for the thread specific memory. */
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static __libc_key_t key;
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/* If nonzero the key allocation failed and we should better use a
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static buffer than fail. */
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static char local_buf[18];
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static char *static_buf;
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/* Destructor for the thread-specific data. */
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static void init (void);
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static void free_key_mem (void *mem);
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char *
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inet_ntoa (struct in_addr in)
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{
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__libc_once_define (static, once);
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char *buffer;
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unsigned char *bytes;
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/* If we have not yet initialized the buffer do it now. */
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__libc_once (once, init);
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if (static_buf != NULL)
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buffer = static_buf;
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else
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{
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/* We don't use the static buffer and so we have a key. Use it
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to get the thread-specific buffer. */
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buffer = __libc_getspecific (key);
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if (buffer == NULL)
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{
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/* No buffer allocated so far. */
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buffer = malloc (18);
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if (buffer == NULL)
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/* No more memory available. We use the static buffer. */
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buffer = local_buf;
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else
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__libc_setspecific (key, buffer);
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}
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}
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bytes = (unsigned char *) ∈
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snprintf (buffer, 18, "%d.%d.%d.%d", bytes[0], bytes[1], bytes[2], bytes[3]);
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return buffer;
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}
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/* Initialize buffer. */
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static void
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init (void)
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{
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if (__libc_key_create (&key, free_key_mem))
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/* Creating the key failed. This means something really went
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wrong. In any case use a static buffer which is better than
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nothing. */
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static_buf = local_buf;
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}
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/* Free the thread specific data, this is done if a thread terminates. */
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static void
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free_key_mem (void *mem)
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{
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free (mem);
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__libc_setspecific (key, NULL);
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}
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