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authorUlrich Drepper <drepper@redhat.com>1998-01-21 17:04:36 +0000
committerUlrich Drepper <drepper@redhat.com>1998-01-21 17:04:36 +0000
commit740152054ecbda66dae0e0f66193d8e244cc2376 (patch)
treeaa093561b97c930db58cecd18ac45401476d3a26 /string/strsignal.c
parentb9b49b44fdc1c74ad85076bca9ff7ea0200e2214 (diff)
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1998-01-22 00:55 Ulrich Drepper <drepper@happy.cygnus.com> * libc.map: Add __libc_uid, __libc_pid, __syscall_rt_sigqueueinfo, __pread64, __pwrite64, and __getpid. * libc/rt/aio_misc.c: Use pread and pwrite instead of __ protected versions. 1998-01-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/alpha/syscalls.list: Define the cancelable socket functions as __libc_xxx with __xxx as weak alias. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/m68k/socket.S: Allow __socket to be redefined. * sysdeps/unix/sysv/linux/i386/socket.S: Likewise. * sysdeps/unix/sysv/linux/arm/socket.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/socket.S: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/socket.S: Likewise. * sysdeps/unix/sysv/linux/accept.S: Make __libc_xxx the main name and __xxx a weak alias. * sysdeps/unix/sysv/linux/connect.S: Likewise. * sysdeps/unix/sysv/linux/recv.S: Likewise. * sysdeps/unix/sysv/linux/recvfrom.S: Likewise. * sysdeps/unix/sysv/linux/recvmsg.S: Likewise. * sysdeps/unix/sysv/linux/send.S: Likewise. * sysdeps/unix/sysv/linux/sendmsg.S: Likewise. * sysdeps/unix/sysv/linux/sendto.S: Likewise. 1998-01-21 Andreas Jaeger <aj@arthur.rhein-neckar.de> * locale/langinfo.h: Add defines. * dirent/dirent.h: Add defines for DT_*, check also for _DIRENT_HAVE_D_TYPE. Suggested by Roland McGrath. 1998-01-16 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/netinet/ip_fw.h: Update from Linux 2.1.73+79. * README.template: Update information about possible configurations. * manual/mbyte.texi (Wide String Conversion): Fix declaration of wcstombs. Pointed out by Jochen Voss <voss@mathematik.uni-kl.de>. [PR libc/417]. * manual/time.texi (Priority): Correct description of PRIO_MAX. Pointed out by Jochen Voss <voss@mathematik.uni-kl.de>. [PR libc/416]. 11998-01-21 21:34 Ulrich Drepper <drepper@cygnus.com> * sysdeps/alpha/fpu/bits/mathdef.h: Add definition of FP_ILOGB0 and FP_ILOGNAN. Patch by a sun <asun@zoology.washington.edu>. 1998-01-21 17:53 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/_strerror.c: Handle BUFLEN == 0. Reported by Andreas Jaeger. 1998-01-20 18:13 Ulrich Drepper <drepper@cygnus.com> * locale/programs/ld-collate.c: Little optimizations. * stdio-common/xbug.c: Unset LD_LIBRRARY_PATH variable. * string/Makefile (tests): Add tst-inlcall. * string/tst-inlcall.c: New file. * string/strsignal.c: Add support for real-time signals. * sysdeps/generic/_strerror.c: Fix Handling of unknown error in presense of small buffer. * sysdeps/i386/bits/string.h: Define _HAVE_STRING_ARCH_* macros. * sysdeps/i386/i486/bits/string.h: Correct strrchr implementation for i686. * sysdeps/unix/sysv/linux/siglist.c: Change length of arrays to _NSIG + 1. 1998-01-02 15:10 Matthias Urlichs <urlichs@noris.de> * Rules: Add explicit rule for dummy.o; at least one library needs it and it isn't autogenerated by the default rules. 1997-12-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c: Tweak epsilons. 1997-12-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/test-fenv.c (feenv_nomask_test): Avoid dumping core in the child. (feenv_mask_test): Likewise. 1998-01-01 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makeconfig: Don't export CPPFLAGS. 1998-01-01 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sunrpc/rpc_main.c (parseargs): Use perror to print error message. 1998-01-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * nss/nss_db/db-alias.c (_nss_db_getaliasent_r): Don't include terminating null in key size. 1998-01-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * nss/nss_files/files-service.c: Fix allocation size to include length of PROTO. * nss/nss_db/db-XXX.c (lookup): Always set errno and h_errno if applicable. Fix return value and error checking. (CONCAT(_nss_db_get,ENTNAME_r)): Loop around to skip over unparsable lines. (DB_LOOKUP): Allocate space for terminating null byte. * nss/db-Makefile ($(VAR_DB)/passwd.db): Don't handle duplicate uids specially. * db2/makedb.c (process_input): Continue processing if a duplicate key is encountered. 1998-01-19 15:20 Ulrich Drepper <drepper@cygnus.com> * time/tzfile.h: Updated from tzcode1998b. * time/zdump.c: Likewise. * time/zic.c: Likewise. * time/africa: Update from tzdata1998b. * time/antarctica: Likewise. * time/asia: Likewise. * time/australasia: Likewise. * time/etcetera: Likewise. * time/europe: Likewise. * time/leapseconds: Likewise. * time/northamerica: Likewise. * time/southamerica: Likewise. 1998-01-12 Andreas Jaeger <aj@arthur.rhein-neckar.de> * nss/nss_files/files-alias.c (get_next_alias): Do mail alias lookups ignoring case. * nss/nss_files/files-network.c: Do network lookups ignoring case. * nss/nss_files/files-hosts.c: Do hostname lookups ignoring case. * nss/nss_files/files-parse.c (LOOKUP_NAME_CASE): New macro for case insensitive comparing. Patches by Cristian Gafton <gafton@redhat.com>. 1998-01-09 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/net/if.h: Add IFF_*defines. Suggested by Roland McGrath. [PR libc/395] 1998-01-08 Andreas Jaeger <aj@arthur.rhein-neckar.de> * manual/arith.texi (Parsing of Integers): Correct description of strtoul. Pointed out by Scott Snyder <snyder@fnald0.fnal.gov>. [PR libc/396] 1997-12-30 14:14 Matthias Urlichs <urlichs@noris.de> * misc/lsearch.c (lsearch): Return a pointer to the new element if one was "allocated". 1997-12-26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * string/strsignal.c: NSIG is not a valid index into _sys_siglist. Don't zap the last character of the "Unknown signal" message. 1998-01-19 15:08 Ulrich Drepper <drepper@cygnus.com> * locale/programs/charmap.c (parse_charmap): Correct parsing of ellipsis expressions. * locale/programs/charset.c (insert_char): Correctly insert value of eliipsis expression.
Diffstat (limited to 'string/strsignal.c')
-rw-r--r--string/strsignal.c93
1 files changed, 86 insertions, 7 deletions
diff --git a/string/strsignal.c b/string/strsignal.c
index 69629b7..41585dc 100644
--- a/string/strsignal.c
+++ b/string/strsignal.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 94, 95, 96, 97, 98 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
@@ -18,7 +18,9 @@
#include <signal.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <bits/libc-lock.h>
#ifndef HAVE_GNU_LD
@@ -27,23 +29,100 @@
/* Defined in siglist.c. */
extern const char *const _sys_siglist[];
+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 (signum < 0 || signum > NSIG || (desc = _sys_siglist[signum]) == NULL)
+ /* 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 = _sys_siglist[signum]) == NULL)
{
- static char buf[512];
- int len = __snprintf (buf, sizeof buf, _("Unknown signal %d"), signum);
+ char *buffer = getbuffer ();
+ int len = __snprintf (buffer, BUFFERSIZ - 1,
+#ifdef SIGRTMIN
+ signum >= SIGRTMIN && signum <= SIGRTMAX
+ ? _("Real-time signal %d") :
+#endif
+ _("Unknown signal %d"), signum);
if (len < 0)
- return NULL;
- buf[len - 1] = '\0';
- return buf;
+ 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;
+}