1 /* 2 * ---------------------------------------------------------------------------- 3 * "THE BEER-WARE LICENSE" (Revision 42): 4 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 5 * can do whatever you want with this stuff. If we meet some day, and you think 6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 7 * ---------------------------------------------------------------------------- 8 * 9 * $FreeBSD$ 10 * 11 */ 12 13 #include <sys/types.h> 14 #include <sys/jail.h> 15 16 #include <netinet/in.h> 17 #include <arpa/inet.h> 18 19 #include <err.h> 20 #include <stdio.h> 21 #include <stdlib.h> 22 #include <string.h> 23 #include <unistd.h> 24 25 int 26 main(int argc, char **argv) 27 { 28 struct jail j; 29 int i; 30 struct in_addr in; 31 32 if (argc < 5) 33 errx(1, "Usage: %s path hostname ip-number command ...\n", 34 argv[0]); 35 i = chdir(argv[1]); 36 if (i) 37 err(1, "chdir %s", argv[1]); 38 memset(&j, 0, sizeof(j)); 39 j.version = 0; 40 j.path = argv[1]; 41 j.hostname = argv[2]; 42 i = inet_aton(argv[3], &in); 43 if (!i) 44 errx(1, "Couldn't make sense of ip-number\n"); 45 j.ip_number = ntohl(in.s_addr); 46 i = jail(&j); 47 if (i) 48 err(1, "Imprisonment failed"); 49 i = execv(argv[4], argv + 4); 50 if (i) 51 err(1, "execv(%s)", argv[4]); 52 exit (0); 53 } 54