MFH Add vasprintf() so the buffer can be automatically calculated, you need to efree this when done though!

1 files changed, 24 insertions, 0 deletions

diff --git a/main/snprintf.c b/main/snprintf.c
index 81998cf970..dbe7b10023 100644
--- a/main/snprintf.c
+++ b/main/snprintf.c
@@ -1268,6 +1268,30 @@ PHPAPI int ap_php_vsnprintf(char *buf, size_t len, const char *format, va_list a
 }
 /* }}} */
 
+PHPAPI int ap_php_vasprintf(char **buf, const char *format, va_list ap) /* {{{ */
+{
+	va_list ap2;
+	int cc;
+
+	va_copy(ap2, ap);
+	cc = ap_php_vsnprintf(NULL, 0, format, ap2);
+	va_end(ap2);
+
+	*buf = NULL;
+
+	if (cc >= 0) {
+		if ((*buf = emalloc(++cc)) != NULL) {
+			if ((cc = ap_php_vsnprintf(*buf, cc, format, ap)) < 0) {
+				efree(*buf);
+				*buf = NULL;
+			}
+		}
+	}
+
+	return cc;
+}
+/* }}} */
+
 /*
  * Local variables:
  * tab-width: 4