1 /* 2 * Copyright (c) 2013 Damien Miller <djm (at) mindrot.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 /* $OpenBSD$ */ 18 19 #include "includes.h" 20 21 #include <sys/types.h> 22 #ifdef HAVE_SYS_STATVFS_H 23 # include <sys/statvfs.h> 24 #endif 25 #include <stdio.h> 26 #include <string.h> 27 #include <errno.h> 28 29 static void 30 usage(void) 31 { 32 fprintf(stderr, "check-setuid [path]\n"); 33 exit(1); 34 } 35 36 int 37 main(int argc, char **argv) 38 { 39 const char *path = "."; 40 struct statvfs sb; 41 42 if (argc > 2) 43 usage(); 44 else if (argc == 2) 45 path = argv[1]; 46 47 if (statvfs(path, &sb) != 0) { 48 /* Don't return an error if the host doesn't support statvfs */ 49 if (errno == ENOSYS) 50 return 0; 51 fprintf(stderr, "statvfs for \"%s\" failed: %s\n", 52 path, strerror(errno)); 53 } 54 return (sb.f_flag & ST_NOSUID) ? 1 : 0; 55 } 56 57 58
