warp-vpn

commit c1abd8c852684b34530c53c8dd2d00fc720e2645
parent 50cd2f876290b87e0b22246bfac89b7460f0b3da
Author: sin <sin@2f30.org>
Date:   Sat, 30 Apr 2016 16:22:43 +0100

Print an error message if packet is too large

Diffstat:
M
netpkt.c
 | 
8
++++++--

1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/netpkt.c b/netpkt.c
@@ -48,8 +48,10 @@ netwrite(int fd, unsigned char *pt, size_t ptlen, size_t *outlen)
 	size_t buflen = noncelen + HDRLEN + ptlen + taglen;
 	int n, total = 0;
 
-	if (buflen > maxbuflen)
+	if (buflen > maxbuflen) {
+		logerr("packet is too large");
 		return PKTFAILED;
+	}
 
 	arc4random_buf(wbuf, noncelen);
 	pack16(&wbuf[noncelen], ptlen);
@@ -83,8 +85,10 @@ netread(int fd, unsigned char *pt, size_t ptlen, size_t *outlen)
 	size_t buflen = noncelen + HDRLEN + ptlen + taglen;
 	int n, ctlen;
 
-	if (buflen > maxbuflen)
+	if (buflen > maxbuflen) {
+		logerr("packet is too large");
 		return PKTFAILED;
+	}
 
 	for (;;) {
 		switch (state) {