Merge branch 'fix-content-length-overflow' into 'master'

prevent buffer overflow when spoofing content-length

See merge request jkaivo/blog!2

1 files changed, 3 insertions, 1 deletions

diff --git a/post.c b/post.c
index 3f4df04..27df0dc 100644
--- a/post.c
+++ b/post.c
@@ -47,7 +47,9 @@ void read_post_data(void)
 
 	int pos = 0;
 	int c;
-	while ((c = getchar()) != EOF) {
+	buf[0] = '\0';
+
+	while (pos < cl && (c = getchar()) != EOF) {
 		if (c == '&') {
 			add_data(buf);
 			pos = 0;