| 1 |
knight |
75 |
/* $Id$ */ |
| 2 |
|
|
#include <stdio.h> |
| 3 |
|
|
#include <stdarg.h> |
| 4 |
|
|
#include <stdlib.h> |
| 5 |
|
|
|
| 6 |
|
|
#define BUFLEN 1024 |
| 7 |
|
|
|
| 8 |
|
|
static void checkbug(const char *fmt, ...); |
| 9 |
|
|
|
| 10 |
|
|
int main(int argc, char *argv[]) |
| 11 |
|
|
{ |
| 12 |
|
|
checkbug("Constant Format String"); |
| 13 |
|
|
checkbug("1=%d, foo=%s", 1, "foo"); |
| 14 |
|
|
|
| 15 |
|
|
exit(0); /*NOTREACHED*/ |
| 16 |
|
|
} |
| 17 |
|
|
|
| 18 |
|
|
static void checkbug(const char *fmt, ...) |
| 19 |
|
|
{ |
| 20 |
|
|
char buf_a[BUFLEN]; |
| 21 |
|
|
char buf_b[BUFLEN]; |
| 22 |
|
|
char buf_c[BUFLEN]; |
| 23 |
|
|
int n; |
| 24 |
|
|
va_list ap, ap2; |
| 25 |
|
|
|
| 26 |
|
|
printf("checkbug(%s)\n", fmt); |
| 27 |
|
|
|
| 28 |
|
|
va_start(ap, fmt); |
| 29 |
|
|
va_copy(ap2, ap); |
| 30 |
|
|
|
| 31 |
|
|
n = vsnprintf(buf_a, BUFLEN, fmt, ap); |
| 32 |
|
|
printf(" buf_a (len=%4d): %s\n", n, buf_a); |
| 33 |
|
|
vsnprintf(buf_b, BUFLEN, fmt, ap); |
| 34 |
|
|
printf(" buf_b (len=%4d): %s\n", n, buf_b); |
| 35 |
|
|
vsnprintf(buf_c, BUFLEN, fmt, ap2); |
| 36 |
|
|
printf(" buf_c (len=%4d): %s\n", n, buf_c); |
| 37 |
|
|
|
| 38 |
|
|
va_end(ap); |
| 39 |
|
|
va_end(ap2); |
| 40 |
|
|
} |
| 41 |
|
|
|
