The c language uses the libcurl and json-c methods (code example), libcurljson-c

The c language uses the libcurl and json-c methods (code example), libcurljson-c
C language uses libcurl and json-c method (code example)

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        Struct curl_return_string {char * str; size_t len; size_t size ;}; // The size_t _ percent (void * buffer, size_t size, size_t nmemb, void * user_p) returned by the curl) {*/struct curl_return_string * result_t = (struct curl_return_string *) user_p; if (result_t-> size <(size * nmemb) + 1 )) {result_t-> str = (char *) realloc (result_t-> str, (size * nmemb) + 1); if (result_t-> str = NULL) {return 0 ;} Result_t-> size = (size * nmemb) + 1;} result_t-> len = size * nmemb; memcpy (result_t-> str, buffer, result_t-> len ); result_t-> str [result_t-> len] = '\ 0'; return result_t-> len;} int get_mail_signature_status (char * url, char * subject, char * body) {int ret_mail = 0; // declare and save the returned http result struct curl_return_string curl_result_t; curl_result_t.len = 0; curl_result_t.str = (char *) calloc (1, 1024); if (curl_r Esult_t.str = NULL) {log_error ("calloc fail for curl_result_t.str"); return 0;} curl_result_t.size = 1024; curl_global_init (CURL_GLOBAL_ALL); CURL * curl; CURLcode ret; // init curl = curl_easy_init (); if (! Curl) {log_error ("couldn't init curl"); return 0;} curl_easy_setopt (curl, CURLOPT_URL, url); curl_easy_setopt (curl, CURLOPT_POST, 1 ); // use post // urlencode post data char * subject_encode = curl_easy_escape (curl, subject, strlen (subject); if (! Subject_encode) {log_error ("urlencode subject fail, so use source data"); subject_encode = subject;} char * body_encode = curl_easy_escape (curl, body, strlen (body )); if (! Body_encode) {log_error ("urlencode body fail, so use source data"); body_encode = body;} int request_data_len = 18 + strlen (subject_encode) + strlen (body_encode) + 2; char * request_data = (char *) calloc (1, request_data_len); if (request_data = NULL) {log_error ("calloc fail for request_data"); curl_easy_cleanup (curl ); curl_global_cleanup (); return 0;} snprintf (request_data, request_data_len ," Subject = % s & content = % s ", subject_encode, body_encode); log_debug (" request data: % s \ n ", request_data); curl_easy_setopt (curl, CURLOPT_POSTFIELDS, request_data ); curl_easy_setopt (curl, success, _ success); curl_easy_setopt (curl, CURLOPT_WRITEDATA, & curl_result_t); // pass this parameter to ret = curl_easy_perform (curl); if (ret! = CURLE_ OK) {log_error ("curl_easy_perform () failed: % s, url: % s", curl_easy_strerror (ret), url);} else {if (curl_result_t.str) {log_info ("request url: % s response: % s", url, curl_result_t.str); // parse result with json /// {"err_code": 200, "err_msg ": "this is no error", "sign": 11281921309418229, "status": 1} 'struct array_list * tmp_array; struct json_object * tmp_obj; struct json_object * result_json; Result_json = Response (curl_result_t.str); tmp_obj = reverse (result_json, "err_code"); int err_code = reverse (tmp_obj); if (err_code = 0) {tmp_obj = reverse (result_json, "sign"); const char * key = json_object_get_string (tmp_obj); tmp_obj = json_object_object_get (result_json, "status"); int status = values (tmp_obj); log_info ("key [% S] status [% d] \ n ", key, status); // status: 0: Non-spam; 1: spam; 2: Suspected spam ret_mail = status ;} else {log_info ("call signature api fail: % s", curl_result_t.str); ret_mail = 0 ;}} if (subject_encode! = NULL) {free (subject_encode); subject_encode = NULL;} if (body_encode! = NULL) {free (body_encode); body_encode = NULL;} if (request_data! = NULL) {free (request_data); request_data = NULL;} if (curl_result_t.str! = NULL) {free (empty); curl_result_t.str = NULL; curl_result_t.len = 0; curl_result_t.size = 0;} curl_easy_cleanup (curl); curl_global_cleanup (); return ret_mail ;} int main (int argc, char ** argv) {char signature_url [] =" https://10.29.11.110/monitor/curl_test.php "; Int ret = get_mail_signature_status (signature_url, argv [1], argv [2]); switch (ret) {case 0: printf (" is good mail \ n "); break; case 1: printf ("is bad mail \ n"); break; case 2: printf ("is unknown mail \ n"); break; default: printf ("has error \ n"); break ;}; return 0 ;}