fix more coverity issues

lib/src/phy/mimo/test/precoder_test.c

@@ -82,7 +82,8 @@ void parse_args(int argc, char **argv) {
       codebook_idx = (uint32_t) atoi(argv[optind]);
       break;
     case 'd':
-      strncpy(decoder_type_name, argv[optind], 16);
+      strncpy(decoder_type_name, argv[optind], 15);
+      decoder_type_name[15] = 0;
       break;
     case 's':
       snr_db = (float) atof(argv[optind]);

srsenb/src/mac/mac.cc

@@ -392,7 +392,7 @@ int mac::rach_detected(uint32_t tti, uint32_t preamble_idx, uint32_t time_adv)
 
   // Find empty slot for pending rars
   uint32_t ra_id=0;
-  while(pending_rars[ra_id].temp_crnti && ra_id<MAX_PENDING_RARS) {
+  while(pending_rars[ra_id].temp_crnti && ra_id<MAX_PENDING_RARS-1) {
     ra_id++;
   }
   if (ra_id == MAX_PENDING_RARS) {

srsenb/src/mac/ue.cc

@@ -256,7 +256,7 @@ void ue::push_pdu(uint32_t tti, uint32_t len)
 bool ue::process_ce(srslte::sch_subh *subh) {
   uint32_t buff_size[4] = {0, 0, 0, 0};
   float phr = 0;
-  int idx = 0;
+  uint32_t idx = 0;
   uint16_t old_rnti = 0;
   bool is_bsr = false;
   switch(subh->ce_type()) {
@@ -289,7 +289,7 @@ bool ue::process_ce(srslte::sch_subh *subh) {
       break;
     case srslte::sch_subh::LONG_BSR:
       subh->get_bsr(buff_size);
-      for (int idx=0;idx<4;idx++) {
+      for (idx=0;idx<4;idx++) {
         for (uint32_t i=0;i<lc_groups[idx].size();i++) {
           sched->ul_bsr(rnti, lc_groups[idx][i], buff_size[idx]);
         }

srsenb/test/upper/ip_test.cc

@@ -618,6 +618,7 @@ int setup_if_addr(char *ip_addr)
   if(0 > ioctl(sock, SIOCGIFFLAGS, &ifr))
   {
     perror("socket");
+    close(sock);
     close(tun_fd);
     return -1;
   }
@@ -625,10 +626,13 @@ int setup_if_addr(char *ip_addr)
   if(0 > ioctl(sock, SIOCSIFFLAGS, &ifr))
   {
     perror("ioctl2");
+    close(sock);
     close(tun_fd);
     return -1;
   }
 
+  close(sock);
+
   // Setup the IP address    
   sock                                                   = socket(AF_INET, SOCK_DGRAM, 0);
   ifr.ifr_addr.sa_family                                 = AF_INET;
@@ -636,6 +640,7 @@ int setup_if_addr(char *ip_addr)
   if(0 > ioctl(sock, SIOCSIFADDR, &ifr))
   {
     perror("ioctl");
+    close(sock);
     close(tun_fd);
     return -1;
   }
@@ -644,9 +649,12 @@ int setup_if_addr(char *ip_addr)
   if(0 > ioctl(sock, SIOCSIFNETMASK, &ifr))
   {
     perror("ioctl");
+    close(sock);
     close(tun_fd);
     return -1;
   }
 
+  close(sock);
+
   return(tun_fd);
 }