Fix cppcheck warnings

amplifiers/expert/expert.c

@@ -129,7 +129,12 @@ int expert_transaction(AMP *amp, const unsigned char *cmd, int cmd_len,
     char cmdbuf[64];
     int checksum = 0;
 
-    rig_debug(RIG_DEBUG_VERBOSE, "%s called, cmd=%s\n", __func__, cmd);
+    if (cmd) { rig_debug(RIG_DEBUG_VERBOSE, "%s called, cmd=%s\n", __func__, cmd); }
+    else
+    {
+        rig_debug(RIG_DEBUG_ERR, "%s: cmd empty\n", __func__);
+        return -RIG_EINVAL;
+    }
 
     if (!amp) { return -RIG_EINVAL; }
 

cppcheck.sh

@@ -21,7 +21,9 @@ SUPPRESS="\
 --suppress=*:extra/gnuradio/ssb.h \
 --suppress=*:extra/gnuradio/wfm.h \
 --suppress=*:extra/gnuradio/wfm.h \
---suppress=*:extra/gnuradio/HrAGC.h
+--suppress=*:extra/gnuradio/HrAGC.h \
+--suppress=*:extra/gnuradio/gnuradio.cc \
+--suppress=missingIncludeSystem
 
 #CHECK="\
 #-D RIG_LEVEL_LINEOUT=1 \

lib/asyncpipe.c

@@ -43,6 +43,7 @@ int async_pipe_create(hamlib_async_pipe_t **pipe_out,
 
     if (!pipe->read)
     {
+        free(pipe);
         return -RIG_EINTERNAL;
     }
 
@@ -143,7 +144,7 @@ ssize_t async_pipe_read(hamlib_async_pipe_t *pipe, void *buf, size_t count,
     LPOVERLAPPED overlapped = &pipe->read_overlapped;
     DWORD wait_result;
     int result;
-    ssize_t bytes_read;
+    ssize_t bytes_read = 0;
 
     result = ReadFile(read_handle, buf, count, NULL, overlapped);
 
@@ -248,7 +249,7 @@ ssize_t async_pipe_write(hamlib_async_pipe_t *pipe, const unsigned char *buf,
     LPOVERLAPPED overlapped = &pipe->write_overlapped;
     DWORD wait_result;
     int result;
-    ssize_t bytes_written;
+    ssize_t bytes_written = 0;
 
     result = WriteFile(write_handle, buf, count, NULL, overlapped);
 

lib/cJSON.h

@@ -124,9 +124,9 @@ typedef struct cJSON
 
 typedef struct cJSON_Hooks
 {
-    /* malloc/free are CDECL on Windows regardless of the default calling convention of the compiler, so ensure the hooks allow passing those functions directly. */
+      /* malloc/free are CDECL on Windows regardless of the default calling convention of the compiler, so ensure the hooks allow passing those functions directly. */
-    void *(CJSON_CDECL *malloc_fn)(size_t sz);
+      void *(CJSON_CDECL *malloc_fn)(size_t sz);
-    void (CJSON_CDECL *free_fn)(void *ptr);
+      void (CJSON_CDECL *free_fn)(void *ptr);
 } cJSON_Hooks;
 
 typedef int cJSON_bool;
@@ -255,7 +255,7 @@ CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse);
 CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive);
 
 /* Minify a strings, remove blank characters(such as ' ', '\t', '\r', '\n') from strings.
- * The input pointer json cannot point to a read-only address area, such as a string constant,
+ * The input pointer json cannot point to a read-only address area, such as a string constant, 
  * but should point to a readable and writable address area. */
 CJSON_PUBLIC(void) cJSON_Minify(char *json);
 
@@ -279,6 +279,13 @@ CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
 /* Change the valuestring of a cJSON_String object, only takes effect when type of object is cJSON_String */
 CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring);
 
+/* If the object is not a boolean type this does nothing and returns cJSON_Invalid else it returns the new type*/
+#define cJSON_SetBoolValue(object, boolValue) ( \
+    (object != NULL && ((object)->type & (cJSON_False|cJSON_True))) ? \
+    (object)->type=((object)->type &(~(cJSON_False|cJSON_True)))|((boolValue)?cJSON_True:cJSON_False) : \
+    cJSON_Invalid\
+)
+
 /* Macro for iterating over an array or object */
 #define cJSON_ArrayForEach(element, array) for(element = (array != NULL) ? (array)->child : NULL; element != NULL; element = element->next)
 

rigs/adat/adat.c

@@ -1486,7 +1486,7 @@ int adat_get_single_cmd_result(RIG *pRig)
             {
                 int   nBufLength  = 0;
 
-                if (*pcPos == '\0') // Adjust for 00 byte at beginning ...
+                if (*pcPos == 0) // Adjust for 00 byte at beginning ...
                 {
                     pcPos++;        // No, please don't ask me why this happens ... ;-)
                 }

rigs/alinco/dx77.c

@@ -334,7 +334,7 @@ int dx77_transaction(RIG *rig,
         return retval;
     }
 
-    if (!(data && data_len))
+    if (((data == NULL) && (data_len > 0)) || ((data != NULL) && (data_len == 0)))
     {
         rig_debug(RIG_DEBUG_ERR, "%s: data and datalen not both NULL??\n", __func__);
         return -RIG_EINTERNAL;
@@ -1013,11 +1013,11 @@ int dx77_set_level(RIG *rig, vfo_t vfo, setting_t level, value_t val)
         {
             lvl = 31;
         }
-        else if (val.i >= 6 && val.i < 20)
+        else if (val.i < 20)
         {
             lvl = val.i + 25;
         }
-        else if (val.i >= 20 && val.i <= 50)
+        else if (val.i <= 50)
         {
             lvl = val.i - 20;
         }

rigs/alinco/dxsr8.c

@@ -368,7 +368,7 @@ int dxsr8_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
     }
 
     /* extract RX freq */
-    retval = num_sscanf(freqbuf, "%"SCNfreq, freq);
+    num_sscanf(freqbuf, "%"SCNfreq, freq);
 
     return RIG_OK;
 }
@@ -472,6 +472,12 @@ int dxsr8_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
     filter = 0; // avoid compiler warnings of being possibly uninitialized
     retval = dxsr8_read_num(rig, AL "~RR_NAR" EOM, &filter);
 
+    if (retval != RIG_OK)
+    {
+        rig_debug(RIG_DEBUG_ERR, "%s: dxsr8_read_num:%s\n", __func__, rigerror(retval));
+        return retval;
+    }
+
     if (filter == 0)
     {
         *width = rig_passband_wide(rig, *mode);

rigs/aor/aor.c

@@ -540,7 +540,7 @@ int parse8k_aor_mode(RIG *rig, char aormode, char aorwidth, rmode_t *mode,
 int aor_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
 {
     struct aor_priv_caps *priv = (struct aor_priv_caps *)rig->caps->priv;
-    char ackbuf[BUFSZ], ackbuf2[BUFSZ];
+    char ackbuf[BUFSZ];
     char *mdp, *mdp2;
     int ack_len, ack2_len, retval;
 
@@ -568,6 +568,7 @@ int aor_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
     if (rig->caps->rig_model == RIG_MODEL_AR5000 ||
             rig->caps->rig_model == RIG_MODEL_AR5000A)
     {
+        char ackbuf2[BUFSZ];
         retval = aor_transaction(rig, "BW" EOM, 3, ackbuf2, &ack2_len);
 
         if (retval != RIG_OK)
@@ -1150,7 +1151,7 @@ static int parse_chan_line(RIG *rig, channel_t *chan, char *basep,
         char *tag2p;
         tagp = strstr(basep, "MD");
 
-        if (!tagp && mem_caps->mode && mem_caps->width)
+        if (!tagp)
         {
             rig_debug(RIG_DEBUG_WARN, "%s: no MD in returned string: '%s'\n",
                       __func__, basep);
@@ -1456,7 +1457,7 @@ const char *aor_get_info(RIG *rig)
         return NULL;
     }
 
-    if (retval > 2) { idbuf[2] = '\0'; }
+    // never executed -- if (retval > 2) { idbuf[2] = '\0'; }
 
     retval = aor_transaction(rig, "VR" EOM, 3, frmbuf, &frm_len);