Fix memory leak in http_parse_querystring().

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/html.c b/html.c
index 6f31097..a0f6db4 100644
--- a/html.c
+++ b/html.c
@@ -281,42 +281,43 @@ char *convert_query_hexchar(char *txt)
         if (d1<0 || d2<0) {
                 memmove(txt, txt+3, n-2);
                 return txt-1;
         } else {
                 *txt = d1 * 16 + d2;
                 memmove(txt+1, txt+3, n-2);
                 return txt;
         }
 }
 
 int http_parse_querystring(const char *txt_, void (*fn)(const char *name, const char *value))
 {
-        char *t, *txt, *value = NULL, c;
+        char *o, *t, *txt, *value = NULL, c;
 
         if (!txt_)
                 return 0;
 
-        t = txt = strdup(txt_);
+        o = t = txt = strdup(txt_);
         if (t == NULL) {
                 printf("Out of memory\n");
                 exit(1);
         }
         while((c=*t) != '\0') {
                 if (c=='=') {
                         *t = '\0';
                         value = t+1;
                 } else if (c=='+') {
                         *t = ' ';
                 } else if (c=='%') {
                         t = convert_query_hexchar(t);
                 } else if (c=='&') {
                         *t = '\0';
                         (*fn)(txt, value);
                         txt = t+1;
                         value = NULL;
                 }
                 t++;
         }
         if (t!=txt)
                 (*fn)(txt, value);
+        free(o);
         return 0;
 }