From 740152054ecbda66dae0e0f66193d8e244cc2376 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 21 Jan 1998 17:04:36 +0000 Subject: Update. 1998-01-22 00:55 Ulrich Drepper * 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 * 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 * 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 * 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 . [PR libc/417]. * manual/time.texi (Priority): Correct description of PRIO_MAX. Pointed out by Jochen Voss . [PR libc/416]. 11998-01-21 21:34 Ulrich Drepper * sysdeps/alpha/fpu/bits/mathdef.h: Add definition of FP_ILOGB0 and FP_ILOGNAN. Patch by a sun . 1998-01-21 17:53 Ulrich Drepper * sysdeps/generic/_strerror.c: Handle BUFLEN == 0. Reported by Andreas Jaeger. 1998-01-20 18:13 Ulrich Drepper * 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 * 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 * math/libm-test.c: Tweak epsilons. 1997-12-31 Andreas Schwab * math/test-fenv.c (feenv_nomask_test): Avoid dumping core in the child. (feenv_mask_test): Likewise. 1998-01-01 Andreas Schwab * Makeconfig: Don't export CPPFLAGS. 1998-01-01 Andreas Schwab * sunrpc/rpc_main.c (parseargs): Use perror to print error message. 1998-01-15 Andreas Schwab * nss/nss_db/db-alias.c (_nss_db_getaliasent_r): Don't include terminating null in key size. 1998-01-13 Andreas Schwab * 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 * 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 * 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 . 1998-01-09 Andreas Jaeger * sysdeps/unix/sysv/linux/net/if.h: Add IFF_*defines. Suggested by Roland McGrath. [PR libc/395] 1998-01-08 Andreas Jaeger * manual/arith.texi (Parsing of Integers): Correct description of strtoul. Pointed out by Scott Snyder . [PR libc/396] 1997-12-30 14:14 Matthias Urlichs * misc/lsearch.c (lsearch): Return a pointer to the new element if one was "allocated". 1997-12-26 Andreas Schwab * 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 * locale/programs/charmap.c (parse_charmap): Correct parsing of ellipsis expressions. * locale/programs/charset.c (insert_char): Correctly insert value of eliipsis expression. --- string/strsignal.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 86 insertions(+), 7 deletions(-) (limited to 'string/strsignal.c') diff --git a/string/strsignal.c b/string/strsignal.c index 69629b7855..41585dca00 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 #include +#include #include +#include #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; +} -- cgit v1.2.3