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51028f34ce
* libio/tst-ungetwc2.c (main): Define str const. * include/wchar.h: Add prototypes for __fwprintf and __vfwprintf. * libio/fwprintf.c: Also define __fwprintf. * stdio-common/vfprintf.c [COMPILE_WPRINTF]: Also define __vfwprintf. * argp/argp-fmtstream.c: Handle wide oriented stderr stream. * assert/assert-perr.c: Likewise. * assert/assert.c: Likewise. * gmon/gmon.c: Likewise. * inet/rcmd.c: Likewise. * malloc/obstack.c: Likewise. * misc/err.c: Likewise. * misc/error.c: Likewise. * misc/getpass.c: Likewise. * posix/getopt.c: Likewise. * resolv/res_hconf.c: Likewise. * stdio-common/perror.c: Likewise. * stdio-common/psignal.c: Likewise. * stdlib/fmtmsg.c: Likewise. * sunrpc/auth_unix.c: Likewise. * sunrpc/clnt_perr.c: Likewise. * sunrpc/clnt_tcp.c: Likewise. * sunrpc/clnt_udp.c: Likewise. * sunrpc/clnt_unix.c: Likewise. * sunrpc/svc_simple.c: Likewise. * sunrpc/svc_tcp.c: Likewise. * sunrpc/svc_udp.c: Likewise. * sunrpc/svc_unix.c: Likewise. * sunrpc/xdr.c: Likewise. * sunrpc/xdr_array.c: Likewise. * sunrpc/xdr_rec.c: Likewise. * sunrpc/xdr_ref.c: Likewise. * sysdeps/generic/wordexp.c: Likewise. * misc/err.c: Handle wide oriented stderr stream.
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/* Copyright (C) 1991-1993,1997,1998,2000,2001 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <wchar.h>
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#ifdef USE_IN_LIBIO
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# include "libioP.h"
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#endif
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static void
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perror_internal (FILE *fp, const char *s)
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{
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char buf[1024];
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int errnum = errno;
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const char *colon;
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const char *errstring;
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if (s == NULL || *s == '\0')
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s = colon = "";
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else
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colon = ": ";
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errstring = __strerror_r (errnum, buf, sizeof buf);
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#ifdef USE_IN_LIBIO
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if (_IO_fwide (fp, 0) > 0)
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(void) __fwprintf (fp, L"%s%s%s\n", s, colon, errstring);
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else
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#endif
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(void) fprintf (fp, "%s%s%s\n", s, colon, errstring);
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}
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/* Print a line on stderr consisting of the text in S, a colon, a space,
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a message describing the meaning of the contents of `errno' and a newline.
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If S is NULL or "", the colon and space are omitted. */
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void
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perror (const char *s)
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{
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FILE *fp;
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int fd = -1;
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/* The standard says that 'perror' must not change the orientation
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of the stream. What is supposed to happen when the stream isn't
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oriented yet? In this case we'll create a new stream which is
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using the same underlying file descriptor. */
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if (__builtin_expect (_IO_fwide (stderr, 0) != 0, 1)
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|| fileno_unlocked (stderr) == -1
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|| (fd = dup (fileno_unlocked (stderr))) == -1
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|| (fp = fdopen (fd, "w+")) == NULL)
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{
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if (__builtin_expect (fd != -1, 0))
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close (fd);
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/* Use standard error as is. */
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perror_internal (stderr, s);
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}
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else
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{
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/* We don't have to do any special hacks regarding the file
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position. Since the stderr stream wasn't used so far we just
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write to the descriptor. */
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perror_internal (fp, s);
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/* Close the stream. */
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fclose (fp);
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((_IO_FILE *) stderr)->_offset = _IO_pos_BAD;
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}
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}
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