0.0.11

1 files changed, 5 insertions, 1 deletions

diff --git a/src/url.c b/src/url.c
index df93138..13081a0 100644
--- a/src/url.c
+++ b/src/url.c
@@ -1,4 +1,6 @@
 int urlencode (char * o, const char * i /* o must have at least strlen(i)*3+1 bytes of memory allocated */) {
+	if (!o || !i)
+		return -2;
 	size_t written = 0; /* o CANNOT be equal to i, unlike in urldecode */
 	for (; *i; i++) {
 		if (isalnum(*i) || *i == '.' || *i == '_' || *i == '-' || *i == '~') {
@@ -12,6 +14,8 @@ int urlencode (char * o, const char * i /* o must have at least strlen(i)*3+1 by
 	return 1;
 }
 int urldecode (char * o, const char * i /* o must have at least strlen(i)+1 bytes memory allocated */) {
+	if (!o || !i)
+		return -2;
 	size_t written = 0; /* o can be equal to i for decoding in-place */
 	char buf[] = "00";
 	for (; *i; i++) {
@@ -20,7 +24,7 @@ int urldecode (char * o, const char * i /* o must have at least strlen(i)+1 byte
 			buf[1] = *++i;
 			if (!buf[0] || !buf[1]) { /* malformed */
 				o[written++] = '\0';
-				return 0;
+				return -1;
 			}
 			o[written++] = strtol(buf, NULL, 16);
 		} else {