glibc/string/strsignal.c
Ulrich Drepper 230491f02c Update.
2002-08-04  Ulrich Drepper  <drepper@redhat.com>

	* stdio-common/psignal.c: Declare _sys_siglist_internal.  Use USEINT
	to access _sys_siglist.
	* string/strsignal.c: Likewise.
	* sysdeps/generic/siglist.c: Add _sys_siglist_internal alias.
	* sysdeps/gnu/siglist.c: Likewise.
	* sysdeps/unix/siglist.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/siglist.c: Likewise.

	* libio/fileops.c: Add missing INTUSEs for _IO_file_jumps.

	* libio/wfileops.c: Add missing INTUSE for _IO_file_close.

	* intl/dcigettext.c: Define _nl_default_dirname_internal as hidden
	alias and use it.
	* intl/bindtextdom.c: Use _nl_default_dirname_internal.

	* include/netinet/in.h: Add declaration of in6addr_loopback_internal.
	* inet/in6_addr.c: Add INTVARDEF for in6addr_loopback.
	* sysdeps/posix/getaddrinfo.c: Use INTUSE for in6addr_loopback access.

	* include/time.h: Add libc_hidden_proto for __gmtime_r.
	* time/gmtime.c (__gmtime_r): Add libc_hidden_def.

	* iconv/Versions: Replace __gconv_alias_db, __gconv_modules_db,
	and __gconv_cache with __gconv_get_alias_db, __gconv_get_modules_db,
	and __gconv_get_cache respectively.
	* iconv/gconv_cache.c (gconv_cache): Renamed for __gconv_cache and
	defined static.  Change all users.
	(__gconv_get_cache): New function.
	* iconv/gconv_db.c (__gconv_get_modules_db): New function.
	(__gconv_get_alias_db): New function.
	* iconv/gconv_int.h (__gconv_alias_db): Declare as hidden.
	(__conv_modules_db): Likewise.
	Add prototypes for __gconv_get_cache, __gconv_get_modules_db,
	and __gconv_get_alias_db.
	* iconv/iconv_prog.c: Use the new functions instead of accessing the
	variables.

	* include/stdlib.h: Add prototype and libc_hidden_proto for
	__default_morecore.
	* sysdeps/generic/morecore.c: Include <stdlib.h>.

	* malloc/obstack.c: Remove fputs macro.

	* malloc/mtrace.c: Remove fopen macro.
2002-08-04 23:32:14 +00:00

135 lines
3.4 KiB
C

/* Copyright (C) 1991, 1994-2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libintl.h>
#include <bits/libc-lock.h>
#ifndef HAVE_GNU_LD
#define _sys_siglist sys_siglist
#endif
/* Defined in siglist.c. */
extern const char *const _sys_siglist[];
extern const char *const _sys_siglist_internal[] attribute_hidden;
static __libc_key_t key;
/* If nonzero the key allocation failed and we should better use a
static buffer than fail. */
#define BUFFERSIZ 100
static char local_buf[BUFFERSIZ];
static char *static_buf;
/* Destructor for the thread-specific data. */
static void init (void);
static void free_key_mem (void *mem);
static char *getbuffer (void);
/* Return a string describing the meaning of the signal number SIGNUM. */
char *
strsignal (int signum)
{
__libc_once_define (static, once);
const char *desc;
/* If we have not yet initialized the buffer do it now. */
__libc_once (once, init);
if (
#ifdef SIGRTMIN
(signum >= SIGRTMIN && signum <= SIGRTMAX) ||
#endif
signum < 0 || signum >= NSIG
|| (desc = INTUSE(_sys_siglist)[signum]) == NULL)
{
char *buffer = getbuffer ();
int len;
#ifdef SIGRTMIN
if (signum >= SIGRTMIN && signum <= SIGRTMAX)
len = __snprintf (buffer, BUFFERSIZ - 1, _("Real-time signal %d"),
signum - SIGRTMIN);
else
#endif
len = __snprintf (buffer, BUFFERSIZ - 1, _("Unknown signal %d"),
signum);
if (len >= BUFFERSIZ)
buffer = NULL;
else
buffer[len] = '\0';
return buffer;
}
return (char *) _(desc);
}
/* Initialize buffer. */
static void
init (void)
{
if (__libc_key_create (&key, free_key_mem))
/* Creating the key failed. This means something really went
wrong. In any case use a static buffer which is better than
nothing. */
static_buf = local_buf;
}
/* Free the thread specific data, this is done if a thread terminates. */
static void
free_key_mem (void *mem)
{
free (mem);
__libc_setspecific (key, NULL);
}
/* Return the buffer to be used. */
static char *
getbuffer (void)
{
char *result;
if (static_buf != NULL)
result = static_buf;
else
{
/* We don't use the static buffer and so we have a key. Use it
to get the thread-specific buffer. */
result = __libc_getspecific (key);
if (result == NULL)
{
/* No buffer allocated so far. */
result = malloc (BUFFERSIZ);
if (result == NULL)
/* No more memory available. We use the static buffer. */
result = local_buf;
else
__libc_setspecific (key, result);
}
}
return result;
}