copy.c (1306B)
1 /* 2 * Copyright (c) 2023 Jacob R. Edwards <jacob@jacobedwards.org> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <sys/wait.h> 18 19 #include <stdio.h> 20 #include <stdlib.h> 21 #include <unistd.h> 22 23 int 24 copy(char *from, char *to) 25 { 26 char *argv[5]; 27 int status; 28 pid_t pid; 29 30 argv[0] = "/bin/cp"; 31 argv[1] = "-a"; 32 argv[2] = from; 33 argv[3] = to; 34 argv[4] = NULL; 35 36 pid = fork(); 37 if (pid < 0) 38 return pid; 39 40 if (!pid) { 41 execv(*argv, argv); 42 perror("Unable to execute /bin/cp"); 43 _exit(1); 44 } 45 46 if (waitpid(pid, &status, 0) < 0) { 47 perror("Unable to wait for /bin/cp"); 48 return -1; 49 } 50 return WEXITSTATUS(status); 51 }