setuid-allowed.c revision 263712
1186545Srwatson/* 2187214Srwatson * Copyright (c) 2013 Damien Miller <djm@mindrot.org> 3186545Srwatson * 4186545Srwatson * Permission to use, copy, modify, and distribute this software for any 5186545Srwatson * purpose with or without fee is hereby granted, provided that the above 6186545Srwatson * copyright notice and this permission notice appear in all copies. 7186545Srwatson * 8186545Srwatson * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9186545Srwatson * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10186545Srwatson * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11186545Srwatson * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12186545Srwatson * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13186545Srwatson * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14186545Srwatson * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15186545Srwatson */ 16187214Srwatson 17187214Srwatson/* $OpenBSD$ */ 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 29void 30usage(void) 31{ 32 fprintf(stderr, "check-setuid [path]\n"); 33 exit(1); 34} 35 36int 37main(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