Mercurial > gnulib
view lib/perror.c @ 40190:ef116535bf1a
relocatable-prog: Use $ORIGIN trick on more platforms.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Use $ORIGIN trick also on
FreeBSD >= 7.3, DragonFly >= 3.0, NetBSD >= 8.0, OpenBSD >= 5.4,
Solaris >= 10, Haiku. But don't use it on Android.
* build-aux/reloc-ldflags: Allow the use of the $ORIGIN trick also on
Hurd, FreeBSD, DragonFly, NetBSD, OpenBSD, Solaris, Haiku.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Wed, 20 Feb 2019 02:39:52 +0100 |
parents | b06060465f09 |
children |
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/* Print a message describing error code. Copyright (C) 2008-2019 Free Software Foundation, Inc. Written by Bruno Haible and Simon Josefsson. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <stdio.h> #include <errno.h> #include <stdlib.h> #include <string.h> #include "strerror-override.h" /* Use the system functions, not the gnulib overrides in this file. */ #undef fprintf void perror (const char *string) { char stackbuf[STACKBUF_LEN]; int ret; /* Our implementation guarantees that this will be a non-empty string, even if it returns EINVAL; and stackbuf should be sized large enough to avoid ERANGE. */ ret = strerror_r (errno, stackbuf, sizeof stackbuf); if (ret == ERANGE) abort (); if (string != NULL && *string != '\0') fprintf (stderr, "%s: %s\n", string, stackbuf); else fprintf (stderr, "%s\n", stackbuf); }