update: using string load function

src/cleardns.c

@@ -115,12 +115,8 @@ void cleardns() { // cleardns service
 }
 
 int main(int argc, char *argv[]) {
-//    init(argc, argv);
+    init(argc, argv);
-//    log_info("ClearDNS server start (%s)", VERSION);
+    log_info("ClearDNS server start (%s)", VERSION);
-//    cleardns();
+    cleardns();
-
-    char *test = string_load("`%s` -> %d", "test", 2333);
-    printf("%s\n", test);
-
     return 0;
 }

src/common/json.c

@@ -1,4 +1,3 @@
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include "cJSON.h"
@@ -27,8 +26,7 @@ char* to_json(const char *file) { // convert JSON / TOML / YAML to json format (
     flag[8] = '\0';
 
     char *output_file = string_join("/tmp/to-json-", flag);
-    char *to_json_cmd = (char *)malloc(strlen(file) + strlen(output_file) + 11);
+    char *to_json_cmd = string_load("toJSON %s > %s", file, output_file);
-    sprintf(to_json_cmd, "toJSON %s > %s", file, output_file);
     int to_json_ret = run_command(to_json_cmd);
     free(to_json_cmd);
 

src/common/system.c

@@ -4,6 +4,7 @@
 #include <unistd.h>
 #include <sys/stat.h>
 #include "logger.h"
+#include "sundry.h"
 #include "system.h"
 #include "constant.h"
 
@@ -65,8 +66,7 @@ void save_file(const char *file, const char *content) { // save content into fil
 }
 
 void file_append(const char *base_file, const char *append_file) { // append_file >> base_file
-    char *append_cmd = (char *)malloc(strlen(base_file) + strlen(append_file) + 9);
+    char *append_cmd = string_load("cat %s >> %s", append_file, base_file);
-    sprintf(append_cmd, "cat %s >> %s", append_file, base_file);
     run_command(append_cmd);
     free(append_cmd);
 }
@@ -108,8 +108,7 @@ void save_string_list(const char *file, char **string_list) { // save string lis
 
 void download_file(const char *file, const char *url) { // download file
     log_debug("Download file `%s` -> %s", file, url);
-    char *download_cmd = (char *)malloc(strlen(file) + strlen(url) + 15);
+    char *download_cmd = string_load("wget -T 8 -O %s %s", file, url);
-    sprintf(download_cmd, "wget -T 8 -O %s %s", file, url);
     if (run_command(download_cmd)) {
         log_warn("File `%s` download failed", url);
     }

src/utils/assets.c

@@ -1,4 +1,3 @@
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <signal.h>
@@ -81,8 +80,7 @@ void extract(const char *file) { // extract one asset file from `.tar.xz` file
     }
     free(output_file);
 
-    char *extract_cmd = (char *)malloc(strlen(ASSETS_PKG) + strlen(file) + strlen(ASSETS_DIR) + 13);
+    char *extract_cmd = string_load("tar xf %s %s -C %s", ASSETS_PKG, file, ASSETS_DIR);
-    sprintf(extract_cmd, "tar xf %s %s -C %s", ASSETS_PKG, file, ASSETS_DIR);
     if (run_command(extract_cmd)) {
         log_warn("Extract asset `%s` failed", file);
     } else {