fix minor coverity issues

debug.c

@@ -249,8 +249,8 @@ void fticks_debug(const char *format, ...) {
     else {
     	priority = LOG_DEBUG | fticks_syslogfacility;
     	vsyslog(priority, format, ap);
-    	va_end(ap);
     }
+    va_end(ap);
 }
 /* Local Variables: */
 /* c-file-style: "stroustrup" */

dtls.c

@@ -378,7 +378,8 @@ int getConnectionInfo(int socket, struct sockaddr *from, socklen_t fromlen, stru
 
     debug(DBG_DBG, "udp packet from %s", addr2string(from));
 
-    getsockname(socket, to, &tolen);
+    if (getsockname(socket, to, &tolen))
+        return -1;
     while (offset < msghdr.msg_controllen) {
         ctrlhdr = (struct cmsghdr *)(controlbuf+offset);
         if(ctrlhdr->cmsg_level == IPPROTO_IP && ctrlhdr->cmsg_type == IP_PKTINFO) {

radsecproxy.c

@@ -200,15 +200,22 @@ struct client *addclient(struct clsrvconf *conf, uint8_t lock) {
     new = calloc(1, sizeof(struct client));
     if (!new) {
 	debug(DBG_ERR, "malloc failed");
+    if (lock)
+        pthread_mutex_unlock(conf->lock);
 	return NULL;
     }
+    if (!list_push(conf->clients, new)) {
+        free(new);
+        if (lock)
+            pthread_mutex_unlock(conf->lock);
+        return NULL;
+    }
     new->conf = conf;
     if (conf->pdef->addclient)
 	conf->pdef->addclient(new);
     else
     new->replyq = newqueue();
     pthread_mutex_init(&new->lock, NULL);
-    list_push(conf->clients, new);
     if (lock)
 	pthread_mutex_unlock(conf->lock);
     return new;
@@ -1231,6 +1238,7 @@ void replylog(struct radmsg *msg, struct server *server, struct request *rq) {
                 break;
             case RSP_MAC_STATIC:
                 sprintf(logstationid+11, "undisclosed");
+                break;
             case RSP_MAC_ORIGINAL:
             default:
                 strncpy(logstationid+11, (char *)stationid, 128-12);
@@ -3027,12 +3035,12 @@ int confserver_cb(struct gconffile **cf, void *arg, char *block, char *opt, char
     if (!conf->secret) {
 	if (!conf->pdef->secretdefault) {
 	    debug(DBG_ERR, "error in block %s, secret must be specified for transport type %s", block, conf->pdef->name);
-	    return 0;
+	    goto errexit;
 	}
 	conf->secret = stringcopy(conf->pdef->secretdefault, 0);
 	if (!conf->secret) {
 	    debug(DBG_ERR, "malloc failed");
-	    return 0;
+	    goto errexit;
 	}
     }
 

util.c

@@ -14,6 +14,7 @@
 #include <errno.h>
 #include <poll.h>
 #include <stdarg.h>
+#include <assert.h>
 #include "debug.h"
 #include "util.h"
 
@@ -71,6 +72,7 @@ struct sockaddr *addr_copy(struct sockaddr *in) {
         ((struct sockaddr_in6 *)out)->sin6_addr = ((struct sockaddr_in6 *)in)->sin6_addr;
 	break;
     }
+    assert(out);
     out->sa_family = in->sa_family;
 #ifdef SIN6_LEN
     out->sa_len = in->sa_len;