57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
#ifdef __ORCAC__
|
|
#pragma optimize -1 /* must be at least 8 */
|
|
#pragma noroot
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <limits.h>
|
|
|
|
int asprintf(char **ret, const char *format, ...) {
|
|
va_list va;
|
|
int i;
|
|
int length = -1;
|
|
|
|
*ret = NULL;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
va_start(va, format);
|
|
length = vsnprintf(*ret, length+1, format, va);
|
|
if (length <= 0 || length == INT_MAX) {
|
|
length = -1;
|
|
if (i > 0)
|
|
free(*ret);
|
|
*ret = NULL;
|
|
goto done;
|
|
}
|
|
if (i == 0) {
|
|
*ret = malloc(length+1);
|
|
if (*ret == NULL) {
|
|
length = -1;
|
|
goto done;
|
|
}
|
|
#ifndef __ORCAC__
|
|
/* Should be here per standard, but ORCA/C allows only one va_end */
|
|
va_end(va);
|
|
#endif
|
|
}
|
|
|
|
}
|
|
|
|
done:
|
|
va_end(va);
|
|
return length;
|
|
}
|
|
|
|
#ifdef TEST_ASPRINTF
|
|
|
|
int main(void) {
|
|
char *s;
|
|
|
|
asprintf(&s, "testing %i %i %x", 1, 2, 3);
|
|
printf("%s\n", s);
|
|
}
|
|
|
|
#endif
|