arp表

www/cgi-bin/c_mysql_ip_mac.c

@@ -0,0 +1,64 @@
+#include <cjson/cJSON.h>
+#include <fcntl.h>
+#include <mysql/mysql.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+int main() {
+    MYSQL *conn;
+    MYSQL_RES *res;
+    MYSQL_ROW row;
+
+    conn = mysql_init(NULL);
+    if (conn == NULL) {
+        fprintf(stderr, "mysql_init() failed\n");
+        exit(1);
+    }
+
+    if (mysql_real_connect(conn, "localhost", "root", "root", "router", 3306,
+                           NULL, 0) == NULL) {
+        fprintf(stderr, "mysql_real_connect() failed\n");
+        mysql_close(conn);
+        exit(1);
+    }
+
+    if (mysql_query(conn, "SELECT * FROM ip_mac")) {
+        fprintf(stderr, "SELECT query failed. Error: %s\n", mysql_error(conn));
+        mysql_close(conn);
+        exit(1);
+    }
+
+    res = mysql_store_result(conn);
+    if (res == NULL) {
+        fprintf(stderr, "mysql_store_result() failed\n");
+        mysql_close(conn);
+        exit(1);
+    }
+
+    cJSON *result_array = cJSON_CreateArray();
+
+    while ((row = mysql_fetch_row(res))) {
+        cJSON *item = cJSON_CreateObject();
+        cJSON_AddStringToObject(item, "id", row[0]);
+        cJSON_AddStringToObject(item, "ip", row[1]);
+        cJSON_AddStringToObject(item, "mac", row[2]);
+        cJSON_AddItemToArray(result_array, item);
+    }
+
+    char *result_json_string = cJSON_Print(result_array);
+
+    printf("Content-Type: application/json;charset=utf-8\r\n");
+    printf("\r\n");
+    printf("%s", result_json_string);
+
+    free(result_json_string);
+    cJSON_Delete(result_array);
+    mysql_free_result(res);
+    mysql_close(conn);
+
+    return 0;
+}