*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
+#include <assert.h>
int vasprintf (char **strp, const char *fmt, va_list ap)
{
- ssize_t len = vsnprintf (NULL, 0, fmt, ap) + 1;
- char *res = malloc (len);
- if (res == NULL)
- return -1;
- *strp = res;
- return vsnprintf (res, len, fmt, ap);
+ va_list args;
+ int len;
+
+ va_copy (args, ap);
+ len = vsnprintf (NULL, 0, fmt, args);
+ va_end (args);
+
+ char *str = malloc (len + 1);
+ if (str != NULL)
+ {
+ int len2;
+
+ va_copy (args, ap);
+ len2 = vsprintf (str, fmt, args);
+ assert (len2 == len);
+ va_end (args);
+ }
+ else
+ {
+ len = -1;
+#ifndef NDEBUG
+ str = (void *)(intptr_t)0x41414141; /* poison */
+#endif
+ }
+ *strp = str;
+ return len;
}