* include/libc-symbols.h (__libc_freeres_fn_section, libc_freeres_fn):

	New macros.
	* elf/dl-close.c (free_mem): Use libc_freeres_fn macro, remove
	text_set_element.
	* elf/dl-libc.c (free_mem): Likewise.
	* iconv/gconv_conf.c (free_mem): Likewise.
	* iconv/gconv_db.c (free_mem): Likewise.
	* iconv/gconv_dl.c (free_mem): Likewise.
	* iconv/gconv_cache.c (free_mem): Likewise.
	* intl/finddomain.c (free_mem): Likewise.
	* intl/dcigettext.c (free_mem): Likewise.
	* locale/setlocale.c (free_mem): Likewise.
	* misc/fstab.c (fstab_free): Likewise.
	* nss/nsswitch.c (free_mem): Likewise.
	* posix/regcomp.c (free_mem): Likewise.
	* resolv/gai_misc.c (free_res): Likewise.
	* stdlib/fmtmsg.c (free_mem): Likewise.
	* sunrpc/clnt_perr.c (free_mem): Likewise.
	* sysdeps/generic/setenv.c (free_mem): Likewise.
	* sysdeps/unix/sysv/linux/shm_open.c (freeit): Likewise.
	* sysdeps/pthread/aio_misc.c (free_res): Likewise.
	* time/tzset.c (free_mem): Likewise.
	* malloc/mtrace.c (release_libc_mem): Add __libc_freeres_fn_section.
	* locale/loadarchive.c (_nl_archive_subfreeres): Likewise.
	* malloc/set-freeres.c (__libc_freeres): Likewise.

	* login/getutent.c: Include stdlib.h instead of stddef.h.
	(buffer): Change into pointer to utmp, add libc_freeres_ptr.
	(__getutent): Allocate buffer the first time it is run.
	* login/getutid.c: Include stdlib.h instead of stddef.h.
	(buffer): Change into pointer to utmp, add libc_freeres_ptr.
	(__getutid): Allocate buffer the first time it is run.
	* login/getutline.c: Include stdlib.h instead of stddef.h.
	(buffer): Change into pointer to utmp, add libc_freeres_ptr.
	(__getutline): Allocate buffer the first time it is run.
	* malloc/mtrace.c (malloc_trace_buffer): Change into char *.
	(mtrace): Allocate malloc_trace_buffer.
	* resolv/nsap_addr.c (inet_nsap_ntoa): Decrease size of tmpbuf.
	* resolv/ns_print.c (ns_sprintrrf): Decrease size of t.
	* string/strerror.c: Include libintl.h and errno.h.
	(buf): New variable.
	(strerror): Only allocate buffer if actually needed (unknown error).
	* time/tzfile.c (transitions): Add libc_freeres_ptr.
	(freeres): Remove.

2002-10-25  Jakub Jelinek  <jakub@redhat.com>

	* include/libc-symbols.h (libc_freeres_ptr): New macro.
	* malloc/set-freeres.c (__libc_freeres_ptrs): Define using
	symbol_set_define.
	(__libc_freeres): Free all pointers in that section.
	* Makerules (build-shlib): Add $(LDSEDCMD-$(@F:lib%.so=%).so) to sed
	commands when creating .lds script.
	(LDSEDCMD-c.so): New variable.
	* inet/rcmd.c (ahostbuf): Change into char *.  Add libc_freeres_ptr.
	(rcmd_af): Use strdup to allocate ahostbuf.
	* inet/rexec.c (ahostbuf): Change into char *.  Add libc_freeres_ptr.
	(rexec_af): Use strdup to allocate ahostbuf.
	* stdio-common/reg-printf.c (printf_funcs): Remove.
	(__printf_arginfo_table): Change into printf_arginfo_function **.
	Add libc_freeres_ptr.
	(__register_printf_function): Allocate __printf_arginfo_table
	and __printf_function_table the first time it is called.
	* stdio-common/printf-parse.h (__printf_arginfo_table): Change into
	printf_arginfo_function **.
	(parse_one_spec): Add __builtin_expect.
	* grp/fgetgrent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* inet/getnetgrent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* intl/localealias.c (libc_freeres_ptr): Define if !_LIBC.
	(string_space, map): Add libc_freeres_ptr.
	(free_mem): Remove.
	* misc/efgcvt.c (FCVT_BUFPTR): Add libc_freeres_ptr.
	(free_mem): Remove.
	* misc/mntent.c (getmntent_buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* crypt/md5-crypt.c (libc_freeres_ptr): Define if !_LIBC.
	(buffer): Add libc_freeres_ptr.
	(free_mem): Remove for _LIBC.
	* nss/getXXbyYY.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* nss/getXXent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* pwd/fgetpwent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* resolv/res_hconf.c (ifaddrs): Add libc_freeres_ptr.
	(free_mem): Remove.
	* shadow/fgetspent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* sysdeps/posix/ttyname.c (getttyname_name): Add libc_freeres_ptr.
	(free_mem): Remove.
	* sysdeps/unix/sysv/linux/getsysstats.c (mount_proc): Add
	libc_freeres_ptr.
	(free_mem): Remove.
	* sysdeps/unix/sysv/linux/ttyname.c (getttyname_name, ttyname_buf): Add
	libc_freeres_ptr.
	(free_mem): Remove.

2002-10-30  Jakub Jelinek  <jakub@redhat.com>

	* malloc/obstack.c [_LIBC] (obstack_free): Change into strong_alias
	instead of duplicating the whole function in libc.

1 files changed, 17 insertions, 3 deletions

diff --git a/string/strerror.c b/string/strerror.c
index 8a54a38ee0..5d829d0bf0 100644
--- a/string/strerror.c
+++ b/string/strerror.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 93, 94, 95, 96, 98 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 93, 94, 95, 96, 98, 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
@@ -16,16 +16,30 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <libintl.h>
 #include <stdio.h>
 #include <string.h>
+#include <errno.h>
 
 /* Return a string describing the errno code in ERRNUM.
    The storage is good only until the next call to strerror.
    Writing to the storage causes undefined behavior.  */
+libc_freeres_ptr (static char *buf);
+
 char *
 strerror (errnum)
      int errnum;
 {
-  static char buf[1024];
-  return __strerror_r (errnum, buf, sizeof buf);
+  char *ret = __strerror_r (errnum, NULL, 0);
+  int saved_errno;
+
+  if (__builtin_expect (ret != NULL, 1))
+    return ret;
+  saved_errno = errno;
+  if (buf == NULL)
+    buf = malloc (1024);
+  __set_errno (saved_errno);
+  if (buf == NULL)
+    return _("Unknown error");
+  return __strerror_r (errnum, buf, 1024);
 }