/* err.c --- 4.4BSD utility functions for error messages. Copyright (C) 1995, 1996, 1998 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stdarg.h> #include <err.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include <stdio.h> #ifdef USE_IN_LIBIO # define flockfile(s) _IO_flockfile (s) # define funlockfile(s) _IO_funlockfile (s) #endif extern char *__progname; #define VA(call) \ { \ va_list ap; \ va_start (ap, format); \ call; \ va_end (ap); \ } void vwarnx (const char *format, __gnuc_va_list ap) { flockfile (stderr); if (__progname) fprintf (stderr, "%s: ", __progname); if (format) vfprintf (stderr, format, ap); putc_unlocked ('\n', stderr); funlockfile (stderr); } void vwarn (const char *format, __gnuc_va_list ap) { int error = errno; flockfile (stderr); if (__progname) fprintf (stderr, "%s: ", __progname); if (format) { vfprintf (stderr, format, ap); fputs_unlocked (": ", stderr); } __set_errno (error); fprintf (stderr, "%m\n"); funlockfile (stderr); } void warn (const char *format, ...) { VA (vwarn (format, ap)) } void warnx (const char *format, ...) { VA (vwarnx (format, ap)) } void verr (int status, const char *format, __gnuc_va_list ap) { vwarn (format, ap); exit (status); } void verrx (int status, const char *format, __gnuc_va_list ap) { vwarnx (format, ap); exit (status); } void err (int status, const char *format, ...) { VA (verr (status, format, ap)) } void errx (int status, const char *format, ...) { VA (verrx (status, format, ap)) }