/* * Copyright (c) 2004 Todd C. Miller <Todd.Miller@courtesan.com> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "config.h" #include <errno.h> #ifndef lint static const char rcsid[] = "$Sudo: sudo_noexec.c,v 1.5 2004/02/13 21:36:43 millert Exp $"; #endif /* lint */ /* * Dummy versions of the execve() family of syscalls. We don't need * to stub out all of them, just the ones that correspond to actual * system calls (which varies by OS). Note that it is still possible * to access the real syscalls via the syscall() interface but very * few programs actually do that. */ #ifndef errno extern int errno; #endif #define DUMMY(fn, args, atypes) \ int \ fn args \ atypes \ { \ errno = EACCES; \ return(-1); \ } DUMMY(execve, (path, argv, envp), const char *path; char *const argv[]; char *const envp[];) DUMMY(_execve, (path, argv, envp), const char *path; char *const argv[]; char *const envp[];) DUMMY(execv, (path, argv, envp), const char *path; char *const argv[];) DUMMY(_execv, (path, argv, envp), const char *path; char *const argv[];) DUMMY(fexecve, (fd, argv, envp), int fd; char *const argv[]; char *const envp[];) DUMMY(_fexecve, (fd, argv, envp), int fd; char *const argv[]; char *const envp[];)