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- /* error.c -- error handler for noninteractive utilities
- Copyright (C) 1990 Free Software Foundation, Inc.
-
- 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 1, 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* David MacKenzie */
-
- #include <stdio.h>
-
- #ifndef VPRINTF_MISSING
-
- #ifdef __STDC__
- #include <stdarg.h>
- #else
- #include <varargs.h>
- #endif
-
- #else
-
- #ifndef DOPRNT_MISSING
- #define va_alist args
- #define va_dcl int args;
- #else
- #define va_alist a1, a2, a3, a4, a5, a6, a7, a8
- #define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
- #endif
-
- #endif
-
- #ifdef STDC_HEADERS
- #include <stdlib.h>
- #include <string.h>
- #else
- void exit ();
-
- #ifdef MSDOS
- /* Force consistency of the prototypes. */
- #include <gnulib.h>
- #endif
-
- static char *
- strerror (errnum)
- int errnum;
- {
- extern char *sys_errlist[];
- extern int sys_nerr;
-
- if (errnum > 0 && errnum < sys_nerr)
- return sys_errlist[errnum];
- return "Unknown system error";
- }
- #endif
-
- /* Print the program name and error message MESSAGE, which is a printf-style
- format string with optional args.
- If ERRNUM is nonzero, print its corresponding system error message.
- Exit with status STATUS if it is nonzero. */
- /* VARARGS */
- void
- #if !defined (VPRINTF_MISSING) && defined (__STDC__)
- error (int status, int errnum, char *message, ...)
- #else
- error (status, errnum, message, va_alist)
- int status;
- int errnum;
- char *message;
- va_dcl
- #endif
- {
- extern char *program_name;
- #ifndef VPRINTF_MISSING
- va_list args;
- #endif
-
- fprintf (stderr, "%s: ", program_name);
- #ifndef VPRINTF_MISSING
- #ifdef __STDC__
- va_start (args, message);
- #else
- va_start (args);
- #endif
- vfprintf (stderr, message, args);
- va_end (args);
- #else
- #ifndef DOPRNT_MISSING
- _doprnt (message, &args, stderr);
- #else
- fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
- #endif
- #endif
- if (errnum)
- fprintf (stderr, ": %s", strerror (errnum));
- putc ('\n', stderr);
- fflush (stderr);
- if (status)
- exit (status);
- }
-