update: free of string and uint32 list

include/utils/structure.h

@@ -7,13 +7,15 @@ char* string_init(const char *str);
 char* string_join(const char *base, const char *add);
 
 uint32_t** uint32_list_init();
-uint32_t uint32_list_len(uint32_t **int_list);
 char* uint32_list_dump(uint32_t **int_list);
+void uint32_list_free(uint32_t **uint32_list);
+uint32_t uint32_list_len(uint32_t **int_list);
 uint32_t** uint32_list_append(uint32_t **int_list, uint32_t number);
 
 char** string_list_init();
-uint32_t string_list_len(char **string_list);
+void string_list_free(char **string_list);
 char* string_list_dump(char **string_list);
+uint32_t string_list_len(char **string_list);
 char** string_list_append(char **string_list, const char *string);
 
 #endif

src/cleardns.c

@@ -36,15 +36,25 @@ int main(int argc, char *argv[]) { // ClearDNS server
     log_info("ClearDNS server start (%s)", VERSION);
 
 
-    char **temp = string_list_init();
+//    char **temp = string_list_init();
 //    temp = string_list_append(temp, "123");
 //    temp = string_list_append(temp, "abc");
 //    temp = string_list_append(temp, "ok");
-
-    char *str = string_list_dump(temp);
-    log_info("`%s`", str);
+//
+//    char *str = string_list_dump(temp);
+//    log_info("`%s`", str);
+//    free(str);
+//    string_list_free(temp);
+
+    uint32_t **temp = uint32_list_init();
+    temp = uint32_list_append(temp, 123);
+    temp = uint32_list_append(temp, 456);
+    temp = uint32_list_append(temp, 789);
+
+    char *str = uint32_list_dump(temp);
+    log_info("`%s`\n", str);
     free(str);
-
+    uint32_list_free(temp);
 
 //    dnsproxy *domestic = dnsproxy_init(DOMESTIC_PORT);
 //

src/utils/structure.c

@@ -8,10 +8,16 @@ char* string_init(const char *str) { // new string
 }
 
 char* string_join(const char *base, const char *add) { // combine string
-    char *ret = (char*)malloc(sizeof(char) * (strlen(base) + strlen(add) + 1));
+    char *ret = (char *)malloc(strlen(base) + strlen(add) + 1);
     return strcat(strcpy(ret, base), add);
 }
 
+uint32_t* uint32_init(uint32_t number) { // new uint32 (by malloc)
+    uint32_t *data = (uint32_t *)malloc(sizeof(uint32_t));
+    *data = number;
+    return data;
+}
+
 char** string_list_init() { // init string list
     char **string_list = (char **)malloc(sizeof(char *));
     *string_list = NULL; // list end sign
@@ -20,7 +26,7 @@ char** string_list_init() { // init string list
 
 uint32_t string_list_len(char **string_list) { // get len of string list
     uint32_t num = 0;
-    while(string_list[num++] != NULL); // get string list size
+    while(string_list[num++] != NULL); // get list size
     return num - 1;
 }
 
@@ -32,10 +38,11 @@ char** string_list_append(char **string_list, const char *string) { // add new s
     return string_list;
 }
 
-// TODO: string list free
 void string_list_free(char **string_list) { // free string list
-    // free every string
-    // free list itself
+    for (char **string = string_list; *string != NULL; ++string) {
+        free(*string);
+    }
+    free(string_list);
 }
 
 char* string_list_dump(char **string_list) { // ['a', 'b', 'c', ...]
@@ -52,25 +59,19 @@ char* string_list_dump(char **string_list) { // ['a', 'b', 'c', ...]
     return strcat(string_ret, "]");
 }
 
-uint32_t** uint32_list_init() {
-    uint32_t **int_list = (uint32_t **)malloc(sizeof(uint32_t *));
-    *int_list = NULL;
-    return int_list;
-}
-
-uint32_t* uint32_init(uint32_t number) {
-    uint32_t *data = (uint32_t *)malloc(sizeof(uint32_t));
-    *data = number;
-    return data;
+uint32_t** uint32_list_init() { // init uint32 list
+    uint32_t **uint32_list = (uint32_t **)malloc(sizeof(uint32_t *));
+    *uint32_list = NULL;
+    return uint32_list;
 }
 
-uint32_t uint32_list_len(uint32_t **int_list) {
+uint32_t uint32_list_len(uint32_t **uint32_list) { // get len of uint32 list
     uint32_t num = 0;
-    while(int_list[num++] != NULL); // get int list size
+    while(uint32_list[num++] != NULL); // get list size
     return num - 1;
 }
 
-uint32_t** uint32_list_append(uint32_t **uint32_list, uint32_t number) {
+uint32_t** uint32_list_append(uint32_t **uint32_list, uint32_t number) { // add new uint32 at the end of list
     uint32_t len = uint32_list_len(uint32_list);
     uint32_list = (uint32_t **)realloc(uint32_list, sizeof(uint32_t *) * (len + 2));
     uint32_list[len] = uint32_init(number);
@@ -78,22 +79,25 @@ uint32_t** uint32_list_append(uint32_t **uint32_list, uint32_t number) {
     return uint32_list;
 }
 
+void uint32_list_free(uint32_t **uint32_list) { // free uint32 list
+    for (uint32_t **number = uint32_list; *number != NULL; ++number) {
+        free(*number);
+    }
+    free(uint32_list);
+}
+
 char* uint32_list_dump(uint32_t **uint32_list) { // [1, 2, 3, ...]
     if (uint32_list_len(uint32_list) == 0) {
         return string_init("[]"); // empty int list
     }
     char uint32_str[12];
     char *string_ret = (char *)malloc(2);
-    string_ret[0] = '[';
-    string_ret[1] = '\0';
+    strcpy(string_ret, "[");
     for (uint32_t **number = uint32_list; *number != NULL; ++number) {
         sprintf(uint32_str, "%d", **number);
         string_ret = (char*)realloc(string_ret, strlen(string_ret) + 15);
         string_ret = strcat(strcat(string_ret, uint32_str), ", ");
     }
-    string_ret[strlen(string_ret) - 2] = ']';
-    string_ret[strlen(string_ret) - 1] = '\0';
-    return string_ret;
+    string_ret[strlen(string_ret) - 2] = '\0';
+    return strcat(string_ret, "]");
 }
-
-// TODO: uint32 list free