1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <errno.h> 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include <sys/socket.h> 21 #include <sys/un.h> 22 #include <unistd.h> 23 #include <cstdlib> 24 25 int main(int argc, char* argv[]) { 26 if (argc != 3) { 27 fprintf(stderr, "syntax: %s <path> <command>\n", argv[0]); 28 return 1; 29 } 30 31 int fd = socket(AF_UNIX, SOCK_STREAM, 0); 32 if (fd < 0) { 33 fprintf(stderr, "socket creation failed: %d\n", errno); 34 return 1; 35 } 36 37 struct sockaddr_un addr; 38 memset(&addr, 0, sizeof(addr)); 39 addr.sun_family = AF_UNIX; 40 strncpy(addr.sun_path, argv[1], sizeof(addr.sun_path)); 41 42 int ok = connect(fd, (struct sockaddr*)&addr, sizeof(addr)); 43 if (ok < 0) { 44 fprintf(stderr, "connection could not be established: %d\n", errno); 45 return 1; 46 } 47 48 ok = write(fd, argv[2], strlen(argv[2])); 49 if (ok < 0) { 50 fprintf(stderr, "write failed: %d\n", errno); 51 return 1; 52 } 53 54 return 0; 55 } 56