ack/util/led/error.c
George Koehler 0fc7fd5d33 Prevent segfault when trying to print an error message.
Use <stdarg.h> to pass arguments correctly, as ack/util/util.c
already uses <stdarg.h> the same way.
2012-10-24 13:44:50 -04:00

89 lines
1.5 KiB
C

/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
#ifndef lint
static char rcsid[] = "$Id$";
#endif
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <out.h>
#include "const.h"
static short nerrors = 0;
static void diag(char *, char *, va_list);
stop()
{
extern char *outputname;
extern int exitstatus;
if (nerrors) {
unlink(outputname);
exit(nerrors);
}
exit(exitstatus);
}
/* VARARGS1 */
void
fatal(char *format, ...)
{
va_list ap;
va_start(ap, format);
nerrors++;
diag("fatal", format, ap);
stop();
}
/* VARARGS1 */
void
warning(char *format, ...)
{
va_list ap;
va_start(ap, format);
diag("warning", format, ap);
va_end(ap);
}
/* VARARGS1 */
void
error(char *format, ...)
{
va_list ap;
va_start(ap, format);
nerrors++;
diag("error", format, ap);
va_end(ap);
}
/* VARARGS1 */
void
do_verbose(char *format, ...)
{
va_list ap;
va_start(ap, format);
diag((char *) 0, format, ap);
va_end(ap);
}
static void
diag(char *tail, char *format, va_list ap)
{
extern char *progname, *archname, *modulname;
fprintf(stderr, "%s: ", progname);
if (archname && modulname)
fprintf(stderr, "%s(%.14s): ", archname, modulname);
else if (archname)
fprintf(stderr, "%s: ", archname);
else if (modulname)
fprintf(stderr, "%s: ", modulname);
vfprintf(stderr, format, ap);
if (tail) fprintf(stderr, " (%s)\n", tail);
else putc('\n', stderr);
}