*/
__must_check __printf_1_2 __malloc char *make_message(const char *fmt, ...)
{
- char *msg;
+ char *p;
+ int n;
+ size_t size = 100;
- VSPRINTF(fmt, msg);
- return msg;
+ p = adu_malloc(size);
+ while (1) {
+ va_list ap;
+ /* Try to print in the allocated space. */
+ va_start(ap, fmt);
+ n = vsnprintf(p, size, fmt, ap);
+ va_end(ap);
+ /* If that worked, return the string. */
+ if (n > -1 && n < size)
+ break;
+ /* Else try again with more space. */
+ if (n > -1) /* glibc 2.1 */
+ size = n + 1; /* precisely what is needed */
+ else /* glibc 2.0 */
+ size *= 2; /* twice the old size */
+ p = adu_realloc(p, size);
+ }
+ return p;
}
/**