Fix signedness compiler warnings.

[oweals/tinc.git] / src / net_packet.c

diff --git a/src/net_packet.c b/src/net_packet.c
index 06afc0b0c87a2ea79cf1ce2fd9e35aed8bc48cb3..d3e25c5e46ae8b7f452662743de688549caf9f35 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -174,7 +174,7 @@ static void receive_udppacket(node_t *n, vpn_packet_t *inpkt)
        int nextpkt = 0;
        vpn_packet_t *outpkt = pkt[0];
        int outlen, outpad;
-       char hmac[EVP_MAX_MD_SIZE];
+       unsigned char hmac[EVP_MAX_MD_SIZE];
        int i;
 
        cp();
@@ -192,7 +192,7 @@ static void receive_udppacket(node_t *n, vpn_packet_t *inpkt)
        if(myself->digest && myself->maclength) {
                inpkt->len -= myself->maclength;
                HMAC(myself->digest, myself->key, myself->keylength,
-                        (char *) &inpkt->seqno, inpkt->len, hmac, NULL);
+                        (unsigned char *) &inpkt->seqno, inpkt->len, (unsigned char *)hmac, NULL);
 
                if(memcmp(hmac, (char *) &inpkt->seqno + inpkt->len, myself->maclength)) {
                        ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Got unauthenticated packet from %s (%s)"),
@@ -207,9 +207,9 @@ static void receive_udppacket(node_t *n, vpn_packet_t *inpkt)
                outpkt = pkt[nextpkt++];
 
                if(!EVP_DecryptInit_ex(&packet_ctx, NULL, NULL, NULL, NULL)
-                               || !EVP_DecryptUpdate(&packet_ctx, (char *) &outpkt->seqno, &outlen,
-                                       (char *) &inpkt->seqno, inpkt->len)
-                               || !EVP_DecryptFinal_ex(&packet_ctx, (char *) &outpkt->seqno + outlen, &outpad)) {
+                               || !EVP_DecryptUpdate(&packet_ctx, (unsigned char *) &outpkt->seqno, &outlen,
+                                       (unsigned char *) &inpkt->seqno, inpkt->len)
+                               || !EVP_DecryptFinal_ex(&packet_ctx, (unsigned char *) &outpkt->seqno + outlen, &outpad)) {
                        ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Error decrypting packet from %s (%s): %s"),
                                                n->name, n->hostname, ERR_error_string(ERR_get_error(), NULL));
                        return;
@@ -352,9 +352,9 @@ static void send_udppacket(node_t *n, vpn_packet_t *inpkt)
                outpkt = pkt[nextpkt++];
 
                if(!EVP_EncryptInit_ex(&n->packet_ctx, NULL, NULL, NULL, NULL)
-                               || !EVP_EncryptUpdate(&n->packet_ctx, (char *) &outpkt->seqno, &outlen,
-                                       (char *) &inpkt->seqno, inpkt->len)
-                               || !EVP_EncryptFinal_ex(&n->packet_ctx, (char *) &outpkt->seqno + outlen, &outpad)) {
+                               || !EVP_EncryptUpdate(&n->packet_ctx, (unsigned char *) &outpkt->seqno, &outlen,
+                                       (unsigned char *) &inpkt->seqno, inpkt->len)
+                               || !EVP_EncryptFinal_ex(&n->packet_ctx, (unsigned char *) &outpkt->seqno + outlen, &outpad)) {
                        ifdebug(TRAFFIC) logger(LOG_ERR, _("Error while encrypting packet to %s (%s): %s"),
                                                n->name, n->hostname, ERR_error_string(ERR_get_error(), NULL));
                        goto end;
@@ -367,8 +367,8 @@ static void send_udppacket(node_t *n, vpn_packet_t *inpkt)
        /* Add the message authentication code */
 
        if(n->digest && n->maclength) {
-               HMAC(n->digest, n->key, n->keylength, (char *) &inpkt->seqno,
-                        inpkt->len, (char *) &inpkt->seqno + inpkt->len, &outlen);
+               HMAC(n->digest, n->key, n->keylength, (unsigned char *) &inpkt->seqno,
+                        inpkt->len, (unsigned char *) &inpkt->seqno + inpkt->len, NULL);
                inpkt->len += n->maclength;
        }