diff options
Diffstat (limited to 'libexec')
| -rw-r--r-- | libexec/Makefile | 1 | ||||
| -rw-r--r-- | libexec/pt_chown/Makefile | 8 | ||||
| -rw-r--r-- | libexec/pt_chown/pt_chown.c | 103 |
3 files changed, 0 insertions, 112 deletions
diff --git a/libexec/Makefile b/libexec/Makefile index 9111fc4..c6c2ab3 100644 --- a/libexec/Makefile +++ b/libexec/Makefile @@ -14,7 +14,6 @@ SUBDIR= atrun \ makekey \ ${_mknetid} \ pppoed \ - pt_chown \ rbootd \ revnetgroup \ ${_rlogind} \ diff --git a/libexec/pt_chown/Makefile b/libexec/pt_chown/Makefile deleted file mode 100644 index d4f31bb..0000000 --- a/libexec/pt_chown/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# $FreeBSD$ - -PROG= pt_chown -BINOWN= root -BINMODE=4555 -NO_MAN= - -.include <bsd.prog.mk> diff --git a/libexec/pt_chown/pt_chown.c b/libexec/pt_chown/pt_chown.c deleted file mode 100644 index d89ffea..0000000 --- a/libexec/pt_chown/pt_chown.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 2002 The FreeBSD Project, Inc. - * All rights reserved. - * - * This software includes code contributed to the FreeBSD Project - * by Ryan Younce of North Carolina State University. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the FreeBSD Project nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR ITS CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -#ifndef lint -__FBSDID("$FreeBSD$"); -#endif /* not lint */ - -#include <sys/stat.h> - -#include <grp.h> -#include <stdlib.h> -#include <sysexits.h> -#include <unistd.h> - -/* - * pt_chown - * Utility support routine for grantpt(3). - * - * According to IEEE Std 1003.1-2001, grantpt(3) changes ownership and - * permission bits of a slave pseudo-terminal device associated with a - * master. - * - * Since doing this if we are not the owner of the slave (which would - * rarely happen) cannot be done by conventional methods, grantpt(3) - * has to rely on this support program, which is setuid root, to change - * the slave's owner, group, and permission mode attributes. It's - * a rather undesirable approach, but Digital Unix and Solaris also seem - * to rely on this approach to pull this off. - * - * This program hangs around long enough to do just these things upon - * its standard input (which is set up by grantpt(3) to be the master's - * descriptor, the one passed to it). The rationale behind this - * approach not allowing somebody to modify ownership of another active - * pseudo terminal is: - * - * 1) This program only operates on its standard input. If STDIN_FILENO - * is not open or is not a pseudo-terminal master, no action is - * taken and the program exits (ptsname() is called for a non-NULL - * return). - * 2) Only one active file description for a pseudo-terminal master - * can exist at a time (attempting to open an active PTY returns with - * EIO - I/O Error). Thus, if the pseudo-terminal is already in - * use by somebody else, it could not have been opened to begin - * with, and thus this program would be useless in such situations. - */ -int -main(int argc, char *argv[]) -{ - int retcode; - char *slave; - gid_t gid; - struct group *grp; - - retcode = EX_OK; - - if ((slave = ptsname(STDIN_FILENO)) == NULL) - retcode = EX_USAGE; - else { - gid = (grp = getgrnam("tty")) ? grp->gr_gid : -1; - if (chown(slave, getuid(), gid) == 0 && - chmod(slave, S_IRUSR | S_IWUSR | S_IWGRP) == 0) - retcode = 0; - else - retcode = EX_NOPERM; - } - - /* - * grantpt(3) checks the retcode for being either zero or - * nonzero. Any nonzero return results in errno being set - * to EACCES. - */ - exit(retcode); -} |
