Fix warnings found by splint (#324)

* Fix warnings found by splint

* Ignore Win32 Builder warnings about possible data loss for integers.

* Fix Windows build warnings

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

.gitignore

@@ -61,10 +61,10 @@ bin/
 Backup*
 BACnet_BDT_table
 address_cache
-/build/*
-/_build/*
+**/build/*
+**/_build/*
 CMakeLists.txt.user
-/out/*
+**/out/*
 Obj/
 Release/
 apps/piface/libmcp23s17/

CMakeLists.txt

@@ -502,6 +502,8 @@ elseif(WIN32)
     $<$<BOOL:${BACDL_BIP}>:ws2_32>
     $<$<BOOL:${BACDL_BIP}>:iphlpapi>)
 
+  add_definitions("/W3 /D_CRT_SECURE_NO_WARNINGS /wd4244 /wd4018 /wd4267")
+
   target_sources(${PROJECT_NAME} PRIVATE
     ports/win32/bacport.h
     $<$<BOOL:${BACDL_BIP6}>:ports/win32/bip6.c>

apps/ack-alarm/main.c

@@ -235,6 +235,7 @@ int main(int argc, char *argv[])
     time_t timeout_seconds = 0;
     bool found = false;
     long dnet = -1;
+    unsigned object_type = 0;
     BACNET_MAC_ADDRESS mac = { 0 };
     BACNET_MAC_ADDRESS adr = { 0 };
     BACNET_ADDRESS dest = { 0 };
@@ -289,8 +290,8 @@ int main(int argc, char *argv[])
                 target_args++;
             } else if (target_args == 2) {
                 /* event-object-type */
-                if (bactext_object_type_strtol(argv[argi],
-                    &data.eventObjectIdentifier.type)) {
+                if (bactext_object_type_strtol(argv[argi], &object_type)) {
+                    data.eventObjectIdentifier.type = object_type;
                     target_args++;
                 } else {
                     fprintf(stderr, "event-object-type=%s invalid\n",
@@ -305,7 +306,8 @@ int main(int argc, char *argv[])
             } else if (target_args == 4) {
                 /* event-state-acked */
                 if (bactext_event_state_strtol(argv[argi],
-                    &data.eventStateAcked)) {
+                    &object_type)) {
+                    data.eventStateAcked = object_type;
                     target_args++;
                 } else {
                     fprintf(stderr, "event-state=%s invalid\n",

apps/readprop/main.c

@@ -252,6 +252,8 @@ int main(int argc, char *argv[])
     BACNET_ADDRESS dest = { 0 };
     bool specific_address = false;
     int argi = 0;
+    unsigned object_type = 0;
+    unsigned object_property = 0;
     unsigned int target_args = 0;
     char *filename = NULL;
 
@@ -296,20 +298,22 @@ int main(int argc, char *argv[])
                 target_args++;
             } else if (target_args == 1) {
                 if (bactext_object_type_strtol(
-                        argv[argi], &Target_Object_Type) == false) {
+                        argv[argi], &object_type) == false) {
                     fprintf(stderr, "object-type=%s invalid\n", argv[argi]);
                     return 1;
                 }
+                Target_Object_Type = object_type;
                 target_args++;
             } else if (target_args == 2) {
                 Target_Object_Instance = strtol(argv[argi], NULL, 0);
                 target_args++;
             } else if (target_args == 3) {
                 if (bactext_property_strtol(
-                        argv[argi], &Target_Object_Property) == false) {
+                        argv[argi], &object_property) == false) {
                     fprintf(stderr, "property=%s invalid\n", argv[argi]);
                     return 1;
                 }
+                Target_Object_Property = object_property;
                 target_args++;
             } else if (target_args == 4) {
                 Target_Object_Index = strtol(argv[argi], NULL, 0);
@@ -399,7 +403,7 @@ int main(int argc, char *argv[])
         }
         if (Error_Detected) {
             break;
-}
+        }
         /* wait until the device is bound, or timeout and quit */
         if (!found) {
             found = address_bind_request(
@@ -441,9 +445,9 @@ int main(int argc, char *argv[])
         /* keep track of time for next check */
         last_seconds = current_seconds;
     }
-
     if (Error_Detected) {
         return 1;
-}
+    }
+
     return 0;
 }

apps/readpropm/main.c

@@ -359,6 +359,7 @@ int main(int argc, char *argv[])
     int scan_count = 0;
     int argi = 0;
     long dnet = -1;
+    unsigned object_type = 0;
     BACNET_MAC_ADDRESS mac = { 0 };
     BACNET_MAC_ADDRESS adr = { 0 };
     bool specific_address = false;
@@ -425,12 +426,13 @@ int main(int argc, char *argv[])
                         atexit(cleanup);
                     }
                     status = bactext_object_type_strtol(
-                        argv[argi], &rpm_object->object_type);
+                        argv[argi], &object_type);
                     if (status == false) {
                         fprintf(stderr, "Error: object-type=%s invalid\n",
                             argv[argi]);
                         return 1;
                     }
+                    rpm_object->object_type = object_type;
                     if (rpm_object->object_type >= MAX_BACNET_OBJECT_TYPE) {
                         fprintf(stderr,
                             "object-type=%u - it must be less than %u\n",

apps/readrange/main.c

@@ -203,6 +203,8 @@ int main(int argc, char *argv[])
     int count = 0;
     int hour, min, sec, hundredths;
     int year, month, day, wday;
+    unsigned object_type = 0;
+    unsigned object_property = 0;
     char *filename = NULL;
 
     filename = filename_remove_path(argv[0]);
@@ -228,15 +230,17 @@ int main(int argc, char *argv[])
     }
     /* decode the command line parameters */
     Target_Device_Object_Instance = strtol(argv[1], NULL, 0);
-    if (bactext_object_type_strtol(argv[2], &Target_Object_Type) == false) {
+    if (bactext_object_type_strtol(argv[2], &object_type) == false) {
         fprintf(stderr, "object-type=%s invalid\n", argv[2]);
         return 1;
     }
+    Target_Object_Type = object_type;
     Target_Object_Instance = strtol(argv[3], NULL, 0);
-    if (bactext_property_strtol(argv[4], &Target_Object_Property) == false) {
+    if (bactext_property_strtol(argv[4], &object_property) == false) {
         fprintf(stderr, "property=%s invalid\n", argv[4]);
         return 1;
     }
+    Target_Object_Property = object_property;
     Target_Object_Range_Type = strtol(argv[5], NULL, 0);
     /* some bounds checking */
     if (Target_Device_Object_Instance > BACNET_MAX_INSTANCE) {
@@ -356,7 +360,7 @@ int main(int argc, char *argv[])
         }
         if (Error_Detected) {
             break;
-}
+        }
         /* wait until the device is bound, or timeout and quit */
         if (!found) {
             found = address_bind_request(
@@ -396,9 +400,9 @@ int main(int argc, char *argv[])
         /* keep track of time for next check */
         last_seconds = current_seconds;
     }
-
     if (Error_Detected) {
         return 1;
-}
+    }
+
     return 0;
 }

apps/server-client/main.c

@@ -91,6 +91,7 @@ int main(int argc, char *argv[])
     struct mstimer print_value_timer = { 0 };
     float float_value = 0.0;
     bool bool_value = false;
+    unsigned object_type = 0;
     uint32_t unsigned_value = 0;
     /* data from the command line */
     unsigned long print_seconds = 10;
@@ -132,11 +133,12 @@ int main(int argc, char *argv[])
                 target_device_object_instance = strtol(argv[argi], NULL, 0);
                 target_args++;
             } else if (target_args == 1) {
-                if (bactext_object_type_strtol(
-                        argv[argi], &target_object_type) == false) {
+                if (bactext_object_type_strtol(argv[argi], &object_type) ==
+                    false) {
                     fprintf(stderr, "object-type=%s invalid\n", argv[argi]);
                     return 1;
                 }
+                target_object_type = object_type;
                 target_args++;
             } else if (target_args == 2) {
                 target_object_instance = strtol(argv[argi], NULL, 0);

apps/ucov/main.c

@@ -73,7 +73,8 @@ int main(int argc, char *argv[])
     BACNET_COV_DATA cov_data;
     BACNET_PROPERTY_VALUE value_list;
     uint8_t tag;
-    unsigned int uint;
+    unsigned object_type = 0;
+    unsigned object_property = 0;
 
     if (argc < 7) {
         /* note: priority 16 and 0 should produce the same end results... */
@@ -173,20 +174,21 @@ int main(int argc, char *argv[])
     /* decode the command line parameters */
     cov_data.subscriberProcessIdentifier = strtol(argv[1], NULL, 0);
     cov_data.initiatingDeviceIdentifier = strtol(argv[2], NULL, 0);
-    if (bactext_object_type_strtol(argv[3], &uint) == false) {
+    if (bactext_object_type_strtol(argv[3], &object_type) == false) {
         fprintf(stderr, "error: object-type=%s invalid\n", argv[3]);
         return 1;
     }
-    cov_data.monitoredObjectIdentifier.type = (uint16_t)uint;
+    cov_data.monitoredObjectIdentifier.type = (uint16_t)object_type;
     cov_data.monitoredObjectIdentifier.instance = strtol(argv[4], NULL, 0);
     cov_data.timeRemaining = strtol(argv[5], NULL, 0);
     cov_data.listOfValues = &value_list;
     value_list.next = NULL;
-    if (bactext_property_strtol(argv[6], &value_list.propertyIdentifier) ==
+    if (bactext_property_strtol(argv[6], &object_property) ==
         false) {
         fprintf(stderr, "property=%s invalid\n", argv[6]);
         return 1;
     }
+    value_list.propertyIdentifier = object_property;
     tag = strtol(argv[7], NULL, 0);
     value_string = argv[8];
     /* optional priority */

apps/whohas/main.c

@@ -135,6 +135,7 @@ int main(int argc, char *argv[])
     time_t current_seconds = 0;
     time_t timeout_seconds = 0;
     int argi = 0;
+    unsigned object_type = 0;
     bool by_name = false;
 
     if (argc < 2) {
@@ -157,10 +158,11 @@ int main(int argc, char *argv[])
     } else if (argc < 4) {
         /* bacwh 8 1234 */
         Target_Object_Instance_Min = Target_Object_Instance_Max = -1;
-        if (bactext_object_type_strtol(argv[1], &Target_Object_Type) == false) {
+        if (bactext_object_type_strtol(argv[1], &object_type) == false) {
             fprintf(stderr, "object-type=%s invalid\n", argv[1]);
             return 1;
         }
+        Target_Object_Type = object_type;
         Target_Object_Instance = strtol(argv[2], NULL, 0);
     } else if (argc < 5) {
         /* bacwh 0 4194303 "name" */
@@ -172,10 +174,11 @@ int main(int argc, char *argv[])
         /* bacwh 0 4194303 8 1234 */
         Target_Object_Instance_Min = strtol(argv[1], NULL, 0);
         Target_Object_Instance_Max = strtol(argv[2], NULL, 0);
-        if (bactext_object_type_strtol(argv[3], &Target_Object_Type) == false) {
+        if (bactext_object_type_strtol(argv[3], &object_type) == false) {
             fprintf(stderr, "object-type=%s invalid\n", argv[3]);
             return 1;
         }
+        Target_Object_Type = object_type;
         Target_Object_Instance = strtol(argv[4], NULL, 0);
     } else {
         print_usage(filename_remove_path(argv[0]));

apps/writeprop/main.c

@@ -239,6 +239,8 @@ int main(int argc, char *argv[])
     uint16_t pdu_len = 0;
     unsigned timeout = 100; /* milliseconds */
     unsigned max_apdu = 0;
+    unsigned object_type = 0;
+    unsigned object_property = 0;
     time_t elapsed_seconds = 0;
     time_t last_seconds = 0;
     time_t current_seconds = 0;
@@ -275,15 +277,17 @@ int main(int argc, char *argv[])
     }
     /* decode the command line parameters */
     Target_Device_Object_Instance = strtol(argv[1], NULL, 0);
-    if (bactext_object_type_strtol(argv[2], &Target_Object_Type) == false) {
+    if (bactext_object_type_strtol(argv[2], &object_type) == false) {
         fprintf(stderr, "object-type=%s invalid\n", argv[2]);
         return 1;
     }
+    Target_Object_Type = object_type;
     Target_Object_Instance = strtol(argv[3], NULL, 0);
-    if (bactext_property_strtol(argv[4], &Target_Object_Property) == false) {
+    if (bactext_property_strtol(argv[4], &object_property) == false) {
         fprintf(stderr, "property=%s invalid\n", argv[4]);
         return 1;
     }
+    Target_Object_Property = object_property;
     Target_Object_Property_Priority = (uint8_t)strtol(argv[5], NULL, 0);
     Target_Object_Property_Index = strtol(argv[6], NULL, 0);
     if (Target_Object_Property_Index == -1) {

apps/writepropm/main.c

@@ -277,6 +277,7 @@ int main(int argc, char *argv[])
     bool status = false;
     BACNET_APPLICATION_TAG property_tag;
     uint8_t context_tag = 0;
+    unsigned object_type = 0;
     unsigned property_id = 0;
     unsigned property_array_index = 0;
     int scan_count = 0;
@@ -318,12 +319,13 @@ int main(int argc, char *argv[])
     arg_sets = 0;
     while (wpm_object) {
         tag_value_arg = 2 + (arg_sets * 6);
-        if (bactext_object_type_strtol(
-                argv[tag_value_arg], &wpm_object->object_type) == false) {
+        if (bactext_object_type_strtol(argv[tag_value_arg], &object_type) ==
+            false) {
             fprintf(
                 stderr, "Error: object-type=%s invalid\n", argv[tag_value_arg]);
             return 1;
         }
+        wpm_object->object_type = object_type;
         tag_value_arg++;
         args_remaining--;
         if (Verbose) {

src/bacnet/basic/client/bac-data.c

@@ -114,8 +114,8 @@ static void bacnet_data_object_store(int index,
 {
     BACNET_DATA_OBJECT *object = NULL;
 
-    assert(rp_data);
-    assert(value);
+    assert(rp_data != NULL);
+    assert(value != NULL);
     if ((index < BACNET_DATA_OBJECT_MAX) && (!value->context_specific)) {
         object = &Object_Table[index];
         switch (rp_data->object_property) {

src/bacnet/basic/object/command.c

@@ -164,6 +164,7 @@ int cl_decode_apdu(uint8_t *apdu,
     int dec_len = 0;
     uint8_t tag_number = 0;
     uint32_t len_value_type = 0;
+    uint32_t enum_value = 0;
     BACNET_UNSIGNED_INTEGER unsigned_value = 0;
 
     if (decode_is_context_tag(&apdu[dec_len], 0)) {
@@ -195,10 +196,11 @@ int cl_decode_apdu(uint8_t *apdu,
         return BACNET_STATUS_REJECT;
     }
     len = decode_enumerated(
-        &apdu[dec_len], len_value_type, &bcl->Property_Identifier);
+        &apdu[dec_len], len_value_type, &enum_value);
     if (len < 0) {
         return BACNET_STATUS_REJECT;
     }
+    bcl->Property_Identifier = enum_value;
     dec_len += len;
     if (decode_is_context_tag(&apdu[dec_len], 3)) {
         len = decode_tag_number_and_value(

src/bacnet/basic/sys/color_rgb.c

@@ -121,7 +121,7 @@ void color_rgb_from_xy(uint8_t *red, uint8_t *green, uint8_t *blue,
     float x = x_coordinate;
     float y = y_coordinate;
     float z = 1.0f - x - y;
-    float Y = brightness;
+    float Y = (float)brightness;
     Y /= 255.0f;
     float X = (Y / y) * x;
     float Z = (Y / y) * z;
@@ -448,17 +448,17 @@ void color_rgb_from_temperature(
         /* Red values below 6600 K are always 255 */
         red = 255.0;
     } else {
-        red = temperature_kelvin - 60;
+        red = (float)(temperature_kelvin - 60);
         red = 329.698727446 * pow(red, -0.1332047592);
         red = clamp(red, 0.0, 255.0);
     }
     /* Calculate Green */
     if (temperature_kelvin <= 66) {
         /* Green values below 6600 K */
-        green = temperature_kelvin;
+        green = (float)temperature_kelvin;
         green = 99.4708025861 * log(green) - 161.1195681661;
     } else {
-        green = temperature_kelvin - 60;
+        green = (float)(temperature_kelvin - 60);
         green = 288.1221695283 * pow(green, -0.0755148492);
     }
     green = clamp(green, 0.0, 255.0);
@@ -470,17 +470,17 @@ void color_rgb_from_temperature(
         /* Blue values below 1900 K */
         blue = 0.0;
     } else {
-        blue = temperature_kelvin - 10;
+        blue = (float)(temperature_kelvin - 10);
         blue = 138.5177312231 * log(blue) - 305.0447927307;
         blue = clamp(blue, 0, 255);
     }
     if (r) {
-        *r = red;
+        *r = (uint8_t)red;
     }
     if (g) {
-        *g = green;
+        *g = (uint8_t)green;
     }
     if (b) {
-        *b = blue;
+        *b = (uint8_t)blue;
     }
 }

src/bacnet/event.c

@@ -786,11 +786,11 @@ int event_notify_decode_service_request(
                                 if (-1 == (section_length =
                                         decode_enumerated(&apdu[len],
                                             len_value,
-                                            &data->
-                                            notificationParams.commandFailure.
-                                            commandValue.binaryValue))) {
+                                            &enum_value))) {
                                     return -1;
                                 }
+                                data->notificationParams.commandFailure.
+                                    commandValue.binaryValue = enum_value;
                                 break;
 
                             case BACNET_APPLICATION_TAG_UNSIGNED_INT:
@@ -836,13 +836,12 @@ int event_notify_decode_service_request(
                         switch (tag_number) {
                             case BACNET_APPLICATION_TAG_ENUMERATED:
                                 if (-1 == (section_length =
-                                        decode_enumerated(&apdu[len],
-                                            len_value,
-                                            &data->
-                                            notificationParams.commandFailure.
-                                            feedbackValue.binaryValue))) {
+                                    decode_enumerated(&apdu[len], len_value,
+                                    &enum_value))) {
                                     return -1;
                                 }
+                                data->notificationParams.commandFailure.
+                                    feedbackValue.binaryValue = enum_value;
                                 break;
 
                             case BACNET_APPLICATION_TAG_UNSIGNED_INT:
@@ -1060,12 +1059,12 @@ int event_notify_decode_service_request(
                     case EVENT_ACCESS_EVENT:
                         if (-1 == (section_length =
                                 decode_context_enumerated(&apdu[len], 0,
-                                    &data->notificationParams.
-                                    accessEvent.accessEvent))) {
+                                &enum_value))) {
                             return -1;
                         }
+                        data->notificationParams.accessEvent.accessEvent =
+                            enum_value;
                         len += section_length;
-
                         if (-1 == (section_length =
                                 decode_context_bitstring(&apdu[len], 1,
                                     &data->notificationParams.