1 /* 2 * Copyright (c) 2014-2015 Dmitry V. Levin <ldv (at) altlinux.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifdef HAVE_CONFIG_H 29 # include "config.h" 30 #endif 31 #include <assert.h> 32 #include <stdlib.h> 33 #include <unistd.h> 34 #include <sys/syscall.h> 35 36 int 37 main(void) 38 { 39 #if defined(__NR_getuid32) \ 40 && defined(__NR_setuid32) \ 41 && defined(__NR_getresuid32) \ 42 && defined(__NR_setreuid32) \ 43 && defined(__NR_setresuid32) \ 44 && defined(__NR_fchown32) \ 45 && defined(__NR_getgroups32) 46 int r, e, s; 47 int size; 48 int *list = 0; 49 50 r = syscall(__NR_getuid32); 51 assert(syscall(__NR_setuid32, r) == 0); 52 assert(syscall(__NR_getresuid32, &r, &e, &s) == 0); 53 assert(syscall(__NR_setreuid32, -1, -1L) == 0); 54 assert(syscall(__NR_setresuid32, r, -1, -1L) == 0); 55 assert(syscall(__NR_fchown32, 1, -1, -1L) == 0); 56 assert((size = syscall(__NR_getgroups32, 0, list)) >= 0); 57 assert(list = calloc(size + 1, sizeof(*list))); 58 assert(syscall(__NR_getgroups32, size, list) == size); 59 return 0; 60 #else 61 return 77; 62 #endif 63 } 64
