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 <stdio.h> 14 #include <err.h> 15 #include <sys/types.h> 16 #include <sys/jail.h> 17 #include <netinet/in.h> 18 19 int 20 main(int argc, char **argv) 21 { 22 struct jail j; 23 int i; 24 struct in_addr in; 25 26 if (argc < 5) 27 errx(1, "Usage: %s path hostname ip-number command ...\n", 28 argv[0]); 29 i = chdir(argv[1]); 30 if (i) 31 err(1, "chdir %s", argv[1]); 32 memset(&j, 0, sizeof(j)); 33 j.version = 0; 34 j.path = argv[1]; 35 j.hostname = argv[2]; 36 i = inet_aton(argv[3], &in); 37 if (!i) 38 errx(1, "Couldn't make sense of ip-number\n"); 39 j.ip_number = ntohl(in.s_addr); 40 i = jail(&j); 41 if (i) 42 err(1, "Imprisonment failed"); 43 i = execv(argv[4], argv + 4); 44 if (i) 45 err(1, "execv(%s)", argv[4]); 46 exit (0); 47 } 48