14bab8de31
Thu Aug 29 00:28:08 1996 Ulrich Drepper <drepper@cygnus.com> * stdio-common/printf_fp.c (__printf_fp): Use default value `.` if `decimal' char is 0. * C-numeric.c (not_available): New constant. (_nl_C_LC_NUMERIC): Use `not_available' for grouping value. * nss/nsswitch.conf: Example configuration file. * nss/db-Makefile: Example Makefile for generation of databases for nss_db. * nss/Makefile (distribute): Add nsswitch.conf and db-Makefile. 1996-08-28 Paul Eggert <eggert@twinsun.com> * C-messages.c (_nl_C_LC_MESSAGES): Set yesexpr to "^[yY]" and noexpr to "^[nN]"; this conforms to POSIX.2. * C-time.c (_nl_C_LC_TIME): Change %d to %e in d_t_format, to conform to POSIX.2. 1996-08-28 Paul Eggert <eggert@twinsun.com> * C-monetary.c (not_available): New constant. (_nl_C_LC_MONETARY): Set mon_decimal_point to "", and set mon_grouping, int_frac_digits, frac_digits, p_cs_precedes, p_sep_by_space, n_cs_precedes, n_sep_by_space, p_sign_posn, and n_sign_posn to CHAR_MAX, as required by the POSIX Standard. Wed Aug 28 23:12:28 1996 Ulrich Drepper <drepper@cygnus.com> * nss/nss_db/db-XXX.c: Correct function names. They must be `_nss_db_*' instead of `_nss_files_*'. (lookup): `parse_line' returns 1 if succesful. * nss/nss_files/files-service.c (servbyname): Key for database must also contain protocol names. (servbypt): Likewise. Test must also check for protocol. Add `proto' argument. Tue Aug 27 09:56:13 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * MakeTAGS ($P/subdirs.pot): Prefix all file names, not only the first one. Fri Aug 16 16:11:25 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * nss/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r): Treat EPFNOSUPPORT and EAFNOSUPPORT as implying NSS_STATUS_UNAVAIL just like ECONNREFUSED already does. (_nss_dns_gethostbyaddr_r): Likewise. * nss/nss_dns/dns-network.c (_nss_dns_getnetbyname_r): Likewise. (_nss_dns_getnetbyaddr_r): Likewise. * sysdeps/mach/hurd/socket.c (socket): For message transmission and RPC errors that indicate that the socket server is not really present and able to do its job, turn the error into EPFNOSUPPORT. * sysdeps/generic/sbrk.c (__sbrk): Get kernel brk address always only if in static libc or if statically linked program uses libc.so.
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/* Error handling for runtime dynamic linker.
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Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <stddef.h>
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#include <link.h>
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#include <setjmp.h>
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#include <stdlib.h>
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#include <string.h>
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/* This structure communicates state between _dl_catch_error and
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_dl_signal_error. */
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struct catch
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{
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char *errstring; /* Error detail filled in here. */
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const char *objname;
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jmp_buf env; /* longjmp here on error. */
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};
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/* This points to such a structure during a call to _dl_catch_error.
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During implicit startup and run-time work for needed shared libraries,
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this is null. */
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static struct catch *catch;
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void
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_dl_signal_error (int errcode,
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const char *objname,
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const char *errstring)
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{
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if (! errstring)
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errstring = "DYNAMIC LINKER BUG!!!";
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if (catch)
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{
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/* We are inside _dl_catch_error. Return to it. We have to
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duplicate the error string since it might be allocated on the
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stack. */
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size_t len = strlen (errstring) + 1;
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catch->errstring = malloc (len);
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if (catch->errstring != NULL)
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memcpy (catch->errstring, errstring, len);
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catch->objname = objname;
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longjmp (catch->env, errcode ?: -1);
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}
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else
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{
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/* Lossage while resolving the program's own symbols is always fatal. */
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extern char **_dl_argv; /* Set in rtld.c at startup. */
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_dl_sysdep_fatal (_dl_argv[0] ?: "<program name unknown>",
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": error in loading shared libraries\n",
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objname ?: "", objname ? ": " : "",
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errstring, errcode ? ": " : "",
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errcode ? strerror (errcode) : "", "\n", NULL);
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}
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}
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int
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_dl_catch_error (char **errstring,
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const char **objname,
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void (*operate) (void))
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{
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int errcode;
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struct catch c = { errstring: NULL, objname: NULL };
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errcode = setjmp (c.env);
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if (errcode == 0)
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{
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catch = &c;
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(*operate) ();
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catch = NULL;
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*errstring = NULL;
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*objname = NULL;
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return 0;
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}
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/* We get here only if we longjmp'd out of OPERATE. */
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*errstring = c.errstring;
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*objname = c.objname;
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return errcode == -1 ? 0 : errcode;
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}
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