glibc/sysdeps/unix/grantpt.c
Ulrich Drepper 4bca4c1748 Update.
1998-04-07 08:51  Ulrich Drepper  <drepper@cygnus.com>

	* iconv/gconv.c: Take care for NULL arguments.
	* iconv/gconv_dl.c: Make find_func function global.
	* iconv/gconv_int.h: Add prototype for __gconv_find_func.
	Add prototypes for ASCII conversion functions.
	* iconv/gconv_simple.c: Add ASCII conversion functions.
	* locale/C-ctype.c: Correct charset name.

	* wcsmbs/Makefile (distribute): Add wcsmbsload.h.
	(routines): Remove wmemrtowcs and wmemrtombs, add wcsnlen and
	wcsmbsload.
	* wcsmbs/btowc.c: Rewrite to use iconv functionality.
	* wcsmbs/mbrtowc.c: Likewise.
	* wcsmbs/mbsnrtowcs.c: Likewise.
	* wcsmbs/mbsrtowcs.c: Likewise.
	* wcsmbs/wcrtomb.c: Likewise.
	* wcsmbs/wcsnrtombs.c: Likewise.
	* wcsmbs/wcsrtombs.c: Likewise.
	* wcsmbs/wctob.c: Likewise.
	* wcsmbs/wchar.h: Add prototype for __wcslen, wcsnlen.  Remove
	prototypes for wmemr*.
	* wcsmbs/wcslen.c: Rename to __wcslen and make wcslen weak alias.
	* wcsmbs/wcsnlen.c: New file.
	* wcsmbs/wcsmbsload.c: New file.
	* wcsmbs/wcsmbsload.h: New file.

	* manual/filesys.texi: Mention risks of tmpnam and mktemp.

	* manual/install.texi: Describe some more critical points.

	* string/string.h: Add prototype for __strnlen.
	* string/strnlen.c: Rename to __strnlen and make strnlen weak alias.

	* sysdeps/posix/mktemp.c: Rewrite to allow many more files and
	much less predictable names.
	* sysdeps/posix/mkstemp.c: Likewise.

1998-04-05  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/libc.texinfo (Top): Change "file namespace" to "local
	namespace".

	* manual/socket.texi: Change file namespace to local namespace.
	(Out-of-Band Data): Remove unneeded variable link.
	(Host Address Functions): Use uint32_t consequently and add a
	number of clarifications for IPv4/IPv6, classless addresses.
	(Internet Namespace): Added some paragraphs about IPv6.
	Based on suggestions by Francesco Potorti` <F.Potorti@cnuce.cnr.it>.

1998-04-05  Philip Blundell  <Philip.Blundell@pobox.com>

	Update for draft-ietf-ipngwg-bsd-api-new-01.txt:

	* resolv/netdb.h (getnameinfo): Use `socklen_t' not `size_t'.
	(NI_NUMERICHOST, et al.): Tidy up and add comments.
	(AI_NUMERICHOST): Define.
	(getnodebyname): New prototype.
	(AI_V4MAPPED, et al.): New constants.

	* sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h (SA_LEN): New macro.<
	* sysdeps/generic/bits/sockaddr.h (SA_LEN): Likewise.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add sa_len
	for socket.
	* sysdeps/unix/sysv/linux/sa_len.c: New file.
	* sysdeps/unix/sysv/linux/Dist: Add sa_len.c.

	* sysdeps/unix/sysv/linux/bits/socket.h: Make multiple #inclusion safe.

	* sysdeps/generic/bits/sockunion.h: New file, defining sockaddr_union.
	* sysdeps/unix/sysv/linux/bits/sockunion.h: Likewise.
	* socket/Makefile (headers): Add bits/sockunion.h.
	* socket/sys/socket.h: Include <bits/sockunion.h>
	* inet/netinet/in.h: Include <bits/sockaddr.h> rather than
	<sys/socket.h>, to avoid getting sockaddr_union defined.
	* sysdeps/generic/bits/socket.h: Allow inclusion from netinet.in.h.
	* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.

	* sysdeps/unix/sysv/linux/if_index.c: Remove use of SIOCGIFCOUNT
	(2.2.x kernels won't have it).

1998-04-06 21:21  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/mach/hurd/bits/ioctls.h: Allow inclusion from hurd/ioctl.h.
	* sysdeps/mach/hurd/dl-sysdep.c: Use __ptr_t not caddr_t.
	* iconv/gconv_conf.c: Define MAXPATHLEN if not available before.
	Patches by UCHIYAMA Yasushi <uch@nop.or.jp>.

1998-04-05  Philip Blundell  <Philip.Blundell@pobox.com>

	* manual/socket.texi (Socket Addresses): Fix a typo.
	(Interface Naming): New section.

1998-04-05 23:29  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* configure.in: Check for CC using $ac_tool_prefix, to handle
	cross-compilation.  Use AC_CHECK_TOOL to find MiG.
	* config.make.in: Add MIG to be substituted.
	* mach/Machrules: Don't define MIG variable.

	Patch by Gordon Matzigkeit <gord@profitpress.com>.

1998-04-05  Mark Kettenis  <kettenis@phys.uva.nl>

	* elf/dl-load.c (decompose_rpath): Use local_strdup instead of
	strdupa to copy rpath.

1998-04-05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in: Fix gcc version check.

	* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing.

1998-04-05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in: Fix gcc version check.

	* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
	confusing.

1998-04-05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* configure.in: Fix gcc version check.

	* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
	confusing.

1998-03-31  Mark Kettenis  <kettenis@phys.uva.nl>

	* sysdeps/unix/bsd/unlockpt.c (unlockpt): Call __ptsname_r instead
	of ptsname_r.

	* stdlib/stdlib.h: Change prototype of ptsname_r to make it more
	like ttyname_r.
	* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Likewise.
	* sysdeps/generic/ptsname.c (__ptsname_r): Likewise.
	* sysdeps/unix/grantpt.c (grantpt): Change check of return value
	of __ptsname_r accordingly.
	* login/openpty.c (openpty): Likewise.

1998-06-04 18:47  H.J. Lu  <hjl@gnu.org>

	* libio/fileops.c (_IO_file_xsgetn): Adjust pointers.

1998-04-06 13:58  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig (libtypes): Redo H.J. Lu's change of 1998-03-27.

	* Makerules: Readd missing rule for $(objpfx)stamp.oS.

1998-04-06  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/ypclnt.c: Don't give YPERR_RPC back, use the do_ypcall
	return value for better error checking.
1998-04-07 09:21:28 +00:00

112 lines
2.9 KiB
C

/* Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <assert.h>
#include "pty-internal.h"
/* Given a fd on a master pseudoterminal, chown the file associated
with the slave to the calling process, and set its group and
mode appropriately. Note that this is an unprivileged operation. */
/* This "generic Unix" implementation works because we provide the program
/usr/libexec/pt_chown, and it only depends on ptsname() working. */
static const char helper[] = LIBEXECDIR "/pt_chown";
static const char *const argv[] = { "pt_chown", NULL };
int
grantpt (fd)
int fd;
{
struct stat st;
int w, pid;
char namebuf[PTYNAMELEN];
/* Some systems do it for us. */
if (__ptsname_r (fd, namebuf, PTYNAMELEN) != 0)
return -1;
if (__xstat (_STAT_VER, namebuf, &st) != 0)
return -1;
if (st.st_uid == getuid ())
return 0;
/* We have to do it in user space. */
pid = fork ();
if (pid == -1)
return -1;
else if (pid == 0)
{
/* Disable core dumps in the child. */
struct rlimit off = { 0, 0 };
setrlimit (RLIMIT_CORE, &off);
/* The helper does its thing on fd PTY_FD. */
if (fd != PTY_FD)
if (dup2 (fd, PTY_FD) == -1)
_exit (FAIL_EBADF);
execve (helper, (char *const *) argv, 0);
_exit (FAIL_EXEC);
}
else
{
if (waitpid (pid, &w, 0) == -1)
return -1;
if (!WIFEXITED (w))
{
__set_errno (ENOEXEC);
return -1;
}
else
switch (WEXITSTATUS(w))
{
case 0:
break;
case FAIL_EBADF:
__set_errno (EBADF);
return -1;
case FAIL_EINVAL:
__set_errno (EINVAL);
return -1;
case FAIL_EACCES:
__set_errno (EACCES);
return -1;
case FAIL_EXEC:
__set_errno (ENOEXEC);
return -1;
default:
assert(! "getpt: internal error: invalid exit code from pt_chown");
}
}
/* Success. */
return 0;
}