glibc/hurd/hurdkill.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
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
2019-09-07 02:43:31 -07:00

93 lines
3.0 KiB
C

/* Copyright (C) 1991-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/types.h>
#include <signal.h>
#include <hurd.h>
#include <hurd/port.h>
#include <hurd/signal.h>
#include <hurd/msg.h>
/* Send a `sig_post' RPC to process number PID. If PID is zero,
send the message to all processes in the current process's process group.
If PID is < -1, send SIG to all processes in process group - PID.
SIG and REFPORT are passed along in the request message. */
error_t
_hurd_sig_post (pid_t pid, int sig, mach_port_t arg_refport)
{
int delivered = 0; /* Set when we deliver any signal. */
error_t err;
mach_port_t proc;
struct hurd_userlink ulink;
inline void kill_pid (pid_t pid) /* Kill one PID. */
{
err = HURD_MSGPORT_RPC (__proc_getmsgport (proc, pid, &msgport),
(refport = arg_refport, 0), 0,
/* If no message port we cannot send signals. */
msgport == MACH_PORT_NULL ? EPERM
: __msg_sig_post (msgport, sig, 0, refport));
if (! err)
delivered = 1;
}
proc = _hurd_port_get (&_hurd_ports[INIT_PORT_PROC], &ulink);
if (pid <= 0)
{
/* Send SIG to each process in pgrp (- PID). */
mach_msg_type_number_t npids = 10, i;
pid_t pidsbuf[10], *pids = pidsbuf;
err = __proc_getpgrppids (proc, - pid, &pids, &npids);
if (!err)
{
int self = 0;
for (i = 0; i < npids; ++i)
if (pids[i] == _hurd_pid)
/* We must do ourselves last so we are not suspended
and fail to suspend the other processes in the pgrp. */
self = 1;
else
{
kill_pid (pids[i]);
if (err == ESRCH)
/* The process died already. Ignore it. */
err = 0;
}
if (pids != pidsbuf)
__vm_deallocate (__mach_task_self (),
(vm_address_t) pids, npids * sizeof (pids[0]));
if (self)
kill_pid (_hurd_pid);
}
}
else
kill_pid (pid);
_hurd_port_free (&_hurd_ports[INIT_PORT_PROC], &ulink, proc);
/* If we delivered no signals, but ERR is clear, this must mean that
every kill_pid call failed with ESRCH, meaning all the processes in
the pgrp died between proc_getpgrppids and kill_pid; in that case we
fail with ESRCH. */
return delivered ? 0 : err ?: ESRCH;
}
weak_alias (_hurd_sig_post, hurd_sig_post)