diff --git a/rigs/alinco/dxsr8.c b/rigs/alinco/dxsr8.c
index 3ac501345..86eae83eb 100644
--- a/rigs/alinco/dxsr8.c
+++ b/rigs/alinco/dxsr8.c
@@ -346,6 +346,7 @@ int dxsr8_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
         return -RIG_EINVAL;
     }
 
+    // cppcheck-suppress *
     cmd_len = sprintf(cmd, AL "~RW_RXF%08"PRIll EOM, (int64_t)freq);
     return dxsr8_transaction(rig, cmd, cmd_len, NULL, NULL);
 }
@@ -769,4 +770,4 @@ int dxsr8_set_ptt(RIG *rig, vfo_t vfo, ptt_t ptt)
 
     cmd_len = sprintf(cmd, AL "~RW_PTT%02d" EOM, ptt);
     return dxsr8_transaction(rig, cmd, cmd_len, NULL, NULL);
-}
\ No newline at end of file
+}
diff --git a/src/misc.c b/src/misc.c
index f177f783a..21bca2e5c 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -1385,7 +1385,7 @@ int HAMLIB_API parse_hoststr(char *hoststr, char host[256], char port[6])
     dummy[0] = 0;
 
     // bracketed IPV6 with optional port
-    int n = sscanf(hoststr, "[%255[^]]]:%s", host, port);
+    int n = sscanf(hoststr, "[%255[^]]]:%5s", host, port);
 
     if (n >= 1)
     {
@@ -1393,7 +1393,7 @@ int HAMLIB_API parse_hoststr(char *hoststr, char host[256], char port[6])
     }
 
     // non-bracketed IPV6 with optional link addr
-    n = sscanf(hoststr, "%x::%x:%x:%x:%x:%%%31[^:]:%s", &net1, &net2, &net3,
+    n = sscanf(hoststr, "%x::%x:%x:%x:%x:%%%31[^:]:%5s", &net1, &net2, &net3,
                &net4, &net5, link, port);
 
     if (strchr(hoststr, '%') && (n == 5 || n == 6))
@@ -1433,7 +1433,7 @@ int HAMLIB_API parse_hoststr(char *hoststr, char host[256], char port[6])
     // bracketed localhost
     if (strstr(hoststr, "::1"))
     {
-        n = sscanf(hoststr, "::1%s", dummy);
+        n = sscanf(hoststr, "::1%5s", dummy);
         strcpy(host, hoststr);
 
         if (n == 1)
diff --git a/src/network.c b/src/network.c
index b4ed224c3..efe3952cc 100644
--- a/src/network.c
+++ b/src/network.c
@@ -130,7 +130,7 @@ int network_open(hamlib_port_t *rp, int default_port)
     int status;
     struct addrinfo hints, *res, *saved_res;
     struct in6_addr serveraddr;
-    char hoststr[256], portstr[6];
+    char hoststr[256], portstr[6] = "";
 
     rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
     rig_debug(RIG_DEBUG_VERBOSE, "%s version 1.0\n", __func__);
diff --git a/src/rig.c b/src/rig.c
index e5ab5ee8b..8ff9ca2ad 100644
--- a/src/rig.c
+++ b/src/rig.c
@@ -558,7 +558,6 @@ int HAMLIB_API rig_open(RIG *rig)
     value_t parm_value;
     //unsigned int net1, net2, net3, net4, net5, net6, net7, net8, port;
     int is_network = 0;
-    char hoststr[256], portstr[6];
 
     rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
 
@@ -572,6 +571,7 @@ int HAMLIB_API rig_open(RIG *rig)
 
     if (strlen(rs->rigport.pathname) > 0)
     {
+        char hoststr[256], portstr[6];
         status = parse_hoststr(rs->rigport.pathname, hoststr, portstr);
 
         if (status == RIG_OK) { is_network = 1; }
@@ -2911,14 +2911,14 @@ int HAMLIB_API rig_set_split_freq(RIG *rig, vfo_t vfo, freq_t tx_freq)
     int retcode, rc2;
     vfo_t curr_vfo, tx_vfo;
 
-    rig_debug(RIG_DEBUG_VERBOSE, "%s called vfo=%s, curr_vfo=%s\n", __func__,
-              rig_strvfo(vfo), rig_strvfo(rig->state.current_vfo));
-
     if (CHECK_RIG_ARG(rig))
     {
         return -RIG_EINVAL;
     }
 
+    rig_debug(RIG_DEBUG_VERBOSE, "%s called vfo=%s, curr_vfo=%s\n", __func__,
+              rig_strvfo(vfo), rig_strvfo(rig->state.current_vfo));
+
     caps = rig->caps;
 
     if (caps->set_split_freq
diff --git a/tests/rigctl_parse.c b/tests/rigctl_parse.c
index d89985aa8..3c9befc9a 100644
--- a/tests/rigctl_parse.c
+++ b/tests/rigctl_parse.c
@@ -1957,6 +1957,7 @@ declare_proto_rig(get_freq)
 {
     int status;
     freq_t freq;
+    // cppcheck-suppress *
     char *fmt = "%"PRIll"%c";
 
     status = rig_get_freq(rig, vfo, &freq);
diff --git a/tests/rigctlcom.c b/tests/rigctlcom.c
index a2b63ec8f..e3f3f9f31 100644
--- a/tests/rigctlcom.c
+++ b/tests/rigctlcom.c
@@ -737,8 +737,8 @@ static int handle_ts2000(void *arg)
         int p15 = 0;            // P15 Shift status dummy value for now
         int retval = rig_get_freq(my_rig, RIG_VFO_A, &freq);
         char response[64];
-        // cppcheck-suppress *
         char *fmt =
+        // cppcheck-suppress *
             "IF%011"PRIll"%04d+%05d%1d%1d%1d%02d%1d%1"PRIll"%1d%1d%1d%1d%02d%1d;";
 
         if (retval != RIG_OK)
diff --git a/tests/rigctld.c b/tests/rigctld.c
index 144f6ad65..f6a6d0cb9 100644
--- a/tests/rigctld.c
+++ b/tests/rigctld.c
@@ -685,8 +685,7 @@ int main(int argc, char *argv[])
     memset(&hints, 0, sizeof(struct addrinfo));
     hints.ai_family = AF_UNSPEC;    /* Allow IPv4 or IPv6 */
     hints.ai_socktype = SOCK_STREAM;/* TCP socket */
-    hints.ai_flags = AI_PASSIVE;    /* For wildcard IP address */
-    hints.ai_flags = AI_CANONNAME;
+    hints.ai_flags = AI_PASSIVE | AI_CANONNAME;    /* For wildcard IP address */
     hints.ai_protocol = 0;          /* Any protocol */
 
     retcode = getaddrinfo(src_addr, portno, &hints, &result);