1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 1993 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * Copyright 2026 Oxide Computer Company 28 */ 29 30 #include <unistd.h> 31 #include <spawn.h> 32 33 #include <vroot/vroot.h> 34 #include <vroot/args.h> 35 36 /* 37 * Try to spawn one candidate path. Returning 1 stops the path search, 38 * either because the command has been spawned or because the error 39 * needs to be dealt with by the caller. Returning 0 moves on to the 40 * next candidate. 41 */ 42 static int spawn_thunk(char *path) 43 { 44 int err = posix_spawn(&vroot_args.spawn.pid, path, NULL, 45 vroot_args.spawn.attr, vroot_args.spawn.argv, 46 vroot_args.spawn.environ); 47 48 if (err == 0) 49 return (1); 50 vroot_args.spawn.pid = -1; 51 errno = err; 52 switch (errno) { 53 case ETXTBSY: 54 case ENOEXEC: return (1); 55 default: return (0); 56 } 57 } 58 59 pid_t spawn_vroot(char *path, char **argv, char **environ, 60 posix_spawnattr_t *attr, pathpt vroot_path, pathpt vroot_vroot) 61 { 62 vroot_args.spawn.argv = argv; 63 vroot_args.spawn.environ = environ; 64 vroot_args.spawn.attr = attr; 65 vroot_args.spawn.pid = -1; 66 translate_with_thunk(path, spawn_thunk, vroot_path, vroot_vroot, rw_read); 67 return (vroot_args.spawn.pid); 68 } 69