/* Copyright (C) 1991, 1992, 1993 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 modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <ansidecl.h> #include <stdio.h> #include <errno.h> extern char *_strerror_internal __P ((int, char *buf, size_t)); /* Print a line on stderr consisting of the text in S, a colon, a space, a message describing the meaning of the contents of `errno' and a newline. If S is NULL or "", the colon and space are omitted. */ void DEFUN(perror, (s), register CONST char *s) { char buf[1024]; int errnum = errno; CONST char *colon; if (s == NULL || *s == '\0') s = colon = ""; else colon = ": "; (void) fprintf (stderr, "%s%s%s\n", s, colon, _strerror_internal (errnum, buf, sizeof buf)); }