mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-01 17:30:07 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/* Copyright (C) 2000-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <fcntl.h>
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#include <paths.h>
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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#include <set-hooks.h>
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/* Try to get a machine dependent instruction which will make the
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program crash. This is used in case everything else fails. */
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#include <abort-instr.h>
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#ifndef ABORT_INSTRUCTION
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/* No such instruction is available. */
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# define ABORT_INSTRUCTION
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#endif
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static void
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check_one_fd (int fd, int mode)
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{
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struct hurd_fd *d;
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d = _hurd_fd_get (fd);
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if (d == NULL)
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{
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/* This descriptor hasn't been opened. We try to allocate the
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descriptor and open /dev/null on it so that the SUID program
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we are about to start does not accidentally use this
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descriptor. */
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d = _hurd_alloc_fd (NULL, fd);
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if (d != NULL)
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{
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mach_port_t port;
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port = __file_name_lookup (_PATH_DEVNULL, mode, 0);
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if (port)
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{
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/* Since /dev/null isn't supposed to be a terminal, we
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avoid any ctty magic. */
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d->port.port = port;
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d->flags = 0;
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__spin_unlock (&d->port.lock);
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return;
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}
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}
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/* We cannot even give an error message here since it would run
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into the same problems. */
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while (1)
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/* Try for ever and ever. */
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ABORT_INSTRUCTION;
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}
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}
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static void
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check_standard_fds (void)
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{
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/* Check all three standard file descriptors. */
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check_one_fd (STDIN_FILENO, O_RDONLY);
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check_one_fd (STDOUT_FILENO, O_RDWR);
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check_one_fd (STDERR_FILENO, O_RDWR);
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}
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static void
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init_standard_fds (void)
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{
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/* Now that we have FDs, make sure that, if this is a SUID program,
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FDs 0, 1 and 2 are allocated. If necessary we'll set them up
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ourselves. If that's not possible we stop the program. */
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if (__builtin_expect (__libc_enable_secure, 0))
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check_standard_fds ();
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(void) &init_standard_fds; /* Avoid "defined but not used" warning. */
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}
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text_set_element (_hurd_fd_subinit, init_standard_fds);
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#ifndef SHARED
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void
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__libc_check_standard_fds (void)
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{
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/* We don't check the standard file descriptors here. They will be
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checked when we initialize the file descriptor table, as part of
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the _hurd_fd_subinit hook.
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This function is only present to make sure that this module gets
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linked in when part of the static libc. */
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}
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#endif
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