102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
#include <cjson/cJSON.h>
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#include <fcntl.h>
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#include <mysql/mysql.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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int main() {
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// 连接到 MySQL 数据库
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MYSQL *conn;
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MYSQL_RES *res;
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MYSQL_ROW row;
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conn = mysql_init(NULL);
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if (conn == NULL) {
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fprintf(stderr, "mysql_init() failed\n");
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exit(1);
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}
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if (mysql_real_connect(conn, "localhost", "root", "root", "router", 3306,
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NULL, 0) == NULL) {
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fprintf(stderr, "mysql_real_connect() failed\n");
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mysql_close(conn);
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exit(1);
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}
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// 获取前端传递的 JSON 数据
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char request_data[128] = "";
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fgets(request_data, 128, stdin);
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// 解析 JSON 数据
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cJSON *p = cJSON_Parse(request_data);
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if (p == NULL) {
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fprintf(stderr, "Error parsing JSON data\n");
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mysql_close(conn);
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return 1;
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}
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// 获取用户名和密码
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cJSON *user = cJSON_GetObjectItemCaseSensitive(p, "name");
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cJSON *pwd = cJSON_GetObjectItemCaseSensitive(p, "pwd");
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if (user == NULL || pwd == NULL || !cJSON_IsString(user) ||
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!cJSON_IsString(pwd)) {
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fprintf(stderr,
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"Error getting username and/or password from JSON data\n");
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cJSON_Delete(p);
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mysql_close(conn);
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return 1;
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}
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char *username_from_frontend = user->valuestring;
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char *password_from_frontend = pwd->valuestring;
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// 构建查询语句
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char query[1000];
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sprintf(query, "SELECT * FROM users WHERE username='%s' AND password='%s'",
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username_from_frontend, password_from_frontend);
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if (mysql_query(conn, query)) {
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fprintf(stderr, "SELECT query failed. Error: %s\n", mysql_error(conn));
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cJSON_Delete(p);
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mysql_close(conn);
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return 1;
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}
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res = mysql_store_result(conn);
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if (res == NULL) {
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fprintf(stderr, "mysql_store_result() failed\n");
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cJSON_Delete(p);
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mysql_close(conn);
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return 1;
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}
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cJSON *result_json = cJSON_CreateObject();
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if ((row = mysql_fetch_row(res))) {
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cJSON_AddNumberToObject(result_json, "code", 0);
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} else {
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cJSON_AddNumberToObject(result_json, "code", 1);
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cJSON_AddStringToObject(result_json, "msg", "用户名或口令错误");
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}
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char *result_json_string = cJSON_Print(result_json);
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// 输出 JSON 结果
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printf("content-type: application/json;charset=utf-8\r\n");
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printf("\r\n");
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printf("%s\n", result_json_string);
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free(result_json_string);
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cJSON_Delete(result_json);
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cJSON_Delete(p);
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mysql_free_result(res);
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mysql_close(conn);
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return 0;
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}
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