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- /* error.c -- error handler for noninteractive utilities
- Copyright (C) 1990, 1991, 1992 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 2, 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. */
-
- /* Written by David MacKenzie. */
-
- #include <stdio.h>
-
- #ifdef HAVE_VPRINTF
-
- #if __STDC__
- #include <stdarg.h>
- #define VA_START(args, lastarg) va_start(args, lastarg)
- #else /* !__STDC__ */
- #include <varargs.h>
- #define VA_START(args, lastarg) va_start(args)
- #endif /* !__STDC__ */
-
- #else /* !HAVE_VPRINTF */
-
- #ifdef HAVE_DOPRNT
- #define va_alist args
- #define va_dcl int args;
- #else /* !HAVE_DOPRNT */
- #define va_alist a1, a2, a3, a4, a5, a6, a7, a8
- #define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
- #endif /* !HAVE_DOPRNT */
-
- #endif /* !HAVE_VPRINTF */
-
- #ifdef STDC_HEADERS
- #include <stdlib.h>
- #include <string.h>
- #else /* !STDC_HEADERS */
- void exit ();
- #endif /* !STDC_HEADERS */
-
- #ifndef HAVE_STRERROR
- static char *
- private_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";
- }
- #define strerror private_strerror
- #endif /* !HAVE_STRERROR */
-
- /* 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 (HAVE_VPRINTF) && __STDC__
- error (int status, int errnum, char *message, ...)
- #else /* !HAVE_VPRINTF or !__STDC__ */
- error (status, errnum, message, va_alist)
- int status;
- int errnum;
- char *message;
- va_dcl
- #endif /* !HAVE_VPRINTF or !__STDC__ */
- {
- extern char *program_name;
- #ifdef HAVE_VPRINTF
- va_list args;
- #endif /* HAVE_VPRINTF */
-
- fprintf (stderr, "%s: ", program_name);
- #ifdef HAVE_VPRINTF
- VA_START (args, message);
- vfprintf (stderr, message, args);
- va_end (args);
- #else /* !HAVE_VPRINTF */
- #ifdef HAVE_DOPRNT
- _doprnt (message, &args, stderr);
- #else /* !HAVE_DOPRNT */
- fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
- #endif /* !HAVE_DOPRNT */
- #endif /* !HAVE_VPRINTF */
- if (errnum)
- fprintf (stderr, ": %s", strerror (errnum));
- putc ('\n', stderr);
- fflush (stderr);
- if (status)
- exit (status);
- }
-