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// XXX: change by mscdex
// from mingw-w64-crt project
#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
int vasprintf(char ** ret, const char * format, va_list ap) {
int len;
/* Get Length */
len = _vsnprintf(NULL, 0, format, ap);
if (len < 0)
return -1;
/* +1 for \0 terminator. */
*ret = malloc(len + 1);
/* Check malloc fail*/
if (!*ret) {
errno = ENOMEM;
return -1;
}
/* Write String */
_vsnprintf(*ret, len + 1, format, ap);
/* Terminate explicitly */
(*ret)[len] = '\0';
return len;
}
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