X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=ssh.c;h=b30d0265df35678cd162937a21fdaed67d5fa5d8;hb=49d2cf19accb059b3b68d1fc2b78e606a578c3e8;hp=c55d217472e12da7e63ed4b61af337196f90f0b2;hpb=8fb9bd0216f49ef0ae94371a3325402301ad2d47;p=PuTTY.git

diff --git a/ssh.c b/ssh.c
index c55d2174..b30d0265 100644
--- a/ssh.c
+++ b/ssh.c
@@ -134,7 +134,7 @@ static const char *const ssh2_disconnect_reasons[] = {
     "protocol error",
     "key exchange failed",
     "host authentication failed",
-    "mac error",
+    "MAC error",
     "compression error",
     "service not available",
     "protocol version not supported",
@@ -1587,7 +1587,7 @@ static void ssh_pkt_ensure(struct Packet *pkt, int length)
 {
     if (pkt->maxlen < length) {
 	unsigned char *body = pkt->body;
-	int offset = body ? pkt->data - body : 0;
+	int offset = body ? body - pkt->data : 0;
 	pkt->maxlen = length + 256;
 	pkt->data = sresize(pkt->data, pkt->maxlen + APIEXTRA, unsigned char);
 	if (body) pkt->body = pkt->data + offset;
@@ -1697,10 +1697,10 @@ static struct Packet *ssh1_pkt_init(int pkt_type)
 static struct Packet *ssh2_pkt_init(int pkt_type)
 {
     struct Packet *pkt = ssh_new_packet();
-    pkt->length = 5;
+    pkt->length = 5; /* space for packet length + padding length */
     pkt->forcepad = 0;
     ssh_pkt_addbyte(pkt, (unsigned char) pkt_type);
-    pkt->body = pkt->data + pkt->length;
+    pkt->body = pkt->data + pkt->length; /* after packet type */
     return pkt;
 }
 
@@ -6640,7 +6640,7 @@ static void do_ssh2_authconn(Ssh ssh, unsigned char *in, int inlen,
 	    if (keytype == SSH_KEYTYPE_SSH2) {
 		s->publickey_blob =
 		    ssh2_userkey_loadpub(&ssh->cfg.keyfile, NULL,
-					 &s->publickey_bloblen, NULL);
+					 &s->publickey_bloblen, NULL, NULL);
 	    } else {
 		char *msgbuf;
 		logeventf(ssh, "Unable to use this key file (%s)",
@@ -6982,7 +6982,7 @@ static void do_ssh2_authconn(Ssh ssh, unsigned char *in, int inlen,
 		    (unsigned char *)ssh2_userkey_loadpub(&ssh->cfg.keyfile,
 							  &algorithm,
 							  &pub_blob_len,
-							  NULL);
+							  NULL, NULL);
 		if (pub_blob) {
 		    s->pktout = ssh2_pkt_init(SSH2_MSG_USERAUTH_REQUEST);
 		    ssh2_pkt_addstring(s->pktout, s->username);