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Prevent segfault when trying to print an error message.

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Use <stdarg.h> to pass arguments correctly, as ack/util/util.c
already uses <stdarg.h> the same way.
This commit is contained in:
George Koehler 2012-10-24 13:44:50 -04:00
parent 4349d702fa
commit 0fc7fd5d33
1 changed files with 28 additions and 18 deletions
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46
util/led/error.c
View file

@ -6,13 +6,14 @@
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 diag();
static void diag(char *, char *, va_list);
stop()
{
@ -28,40 +29,49 @@ stop()
}
/* VARARGS1 */
fatal(format, a1, a2, a3, a4)
char *format;
void
fatal(char *format, ...)
{
va_list ap;
va_start(ap, format);
nerrors++;
diag("fatal", format, a1, a2, a3, a4);
diag("fatal", format, ap);
stop();
}
/* VARARGS1 */
warning(format, a1, a2, a3, a4)
char *format;
void
warning(char *format, ...)
{
diag("warning", format, a1, a2, a3, a4);
va_list ap;
va_start(ap, format);
diag("warning", format, ap);
va_end(ap);
}
/* VARARGS1 */
error(format, a1, a2, a3, a4)
char *format;
void
error(char *format, ...)
{
va_list ap;
va_start(ap, format);
nerrors++;
diag("error", format, a1, a2, a3, a4);
diag("error", format, ap);
va_end(ap);
}
/* VARARGS1 */
do_verbose(format, a1, a2, a3, a4)
char *format;
void
do_verbose(char *format, ...)
{
diag((char *) 0, format, a1, a2, a3, a4);
va_list ap;
va_start(ap, format);
diag((char *) 0, format, ap);
va_end(ap);
}
static
diag(tail, format, a1, a2, a3, a4)
char *tail;
char *format;
static void
diag(char *tail, char *format, va_list ap)
{
extern char *progname, *archname, *modulname;
@ -72,7 +82,7 @@ diag(tail, format, a1, a2, a3, a4)
fprintf(stderr, "%s: ", archname);
else if (modulname)
fprintf(stderr, "%s: ", modulname);
fprintf(stderr, format, a1, a2, a3, a4);
vfprintf(stderr, format, ap);
if (tail) fprintf(stderr, " (%s)\n", tail);
else putc('\n', stderr);
}