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-rw-r--r--socks.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/socks.c b/socks.c
index 58b3648..c7c0473 100644
--- a/socks.c
+++ b/socks.c
@@ -112,10 +112,17 @@ socks_username_password_auth (struct socks_proxy_info *p,
ssize_t size;
creds.defined = 0;
-
get_user_pass (&creds, p->authfile, UP_TYPE_SOCKS, GET_USER_PASS_MANAGEMENT);
- snprintf (to_send, sizeof (to_send), "\x01%c%s%c%s", strlen(creds.username),
- creds.username, strlen(creds.password), creds.password);
+
+ if( !creds.username || (strlen(creds.username) > 255)
+ || !creds.password || (strlen(creds.password) > 255) ) {
+ msg (M_NONFATAL,
+ "SOCKS username and/or password exceeds 255 characters. "
+ "Authentication not possible.");
+ return false;
+ }
+ snprintf (to_send, sizeof (to_send), "\x01%c%s%c%s", (int) strlen(creds.username),
+ creds.username, (int) strlen(creds.password), creds.password);
size = send (sd, to_send, strlen(to_send), MSG_NOSIGNAL);
if (size != strlen (to_send))