debug messages in MULTILOGIN processing

1 files changed, 15 insertions, 0 deletions

diff --git a/PICA_client.c b/PICA_client.c
index 9938efc..14d2082 100644
--- a/PICA_client.c
+++ b/PICA_client.c
@@ -1660,17 +1660,26 @@ static unsigned int procmsg_MULTILOGIN(unsigned char *buf, unsigned int nb, void
 	PICA_TRACEFUNC
 	//TODO report invalid MULTILOGIN messages
 	if (payload_len <= sizeof timestamp + PICA_PROTO_NODELIST_ITEM_IPV4_SIZE)
+	{
+		fprintf(stderr, "Invalid payload size of MULTILOGIN message: %u\n", payload_len);
 		return 1;
+	}
 
 	timestamp = *(uint64_t*)(buf + 4);
 
 	if (timestamp <= c2n->multilogin_last_timestamp)
+	{
+		fprintf(stderr, "timestamp: received %lu last %lu\n", timestamp, c2n->multilogin_last_timestamp);
 		return 1;
+	}
 
 	f = fopen(c2n->acc->cert_file, "r");
 
 	if (!f)
+	{
+		fprintf(stderr, "Failed to open certificate file %s\n", c2n->acc->cert_file);
 		return 1;
+	}
 
 	x = PEM_read_X509(f, 0, 0, 0);
 	fclose(f);
@@ -1715,7 +1724,10 @@ static unsigned int procmsg_MULTILOGIN(unsigned char *buf, unsigned int nb, void
 	ret = PICA_signverify(pubkey, sigdatas, sigdatalengths, sig, siglen);
 
 	if (ret != 1)
+	{
+		fprintf(stderr, "signature verification failed\n");
 		goto multilogin_err2;
+	}
 
 	{
 		char ipaddr_string[INET6_ADDRSTRLEN];
@@ -1761,6 +1773,8 @@ static int c2n_optstage7_multilogin(struct PICA_c2n *c2n)
 	sigdatas[1] = &timestamp;
 	sigdatalengths[1] = sizeof timestamp;
 
+	fprintf(stderr, "timestamp = %lu\n", timestamp);
+
 	//nodeaddr buf, IPv4 for now
 	// TODO IPv6, DNS
 	node_addr[0] = PICA_PROTO_NEWNODE_IPV4;
@@ -1816,6 +1830,7 @@ static int c2n_optstage7_multilogin(struct PICA_c2n *c2n)
 	{
 		*((uint16_t*)mp->tail) = sizeof timestamp + sigdatalengths[2] + siglen;
 		memcpy(mp->tail + 2, &timestamp, sizeof timestamp);
+		fprintf(stderr, "timestamp = %lu\n", timestamp);
 		memcpy(mp->tail + 2 + sizeof timestamp, sigdatas[2], sigdatalengths[2]);
 		memcpy(mp->tail + 2 + sizeof timestamp + sigdatalengths[2], sig, siglen);
 		ret = PICA_OK;