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-rw-r--r--sysdeps/posix/system.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
deleted file mode 100644
index d49cc3f01c..0000000000
--- a/sysdeps/posix/system.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/* Copyright (C) 1991-2017 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
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <signal.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <libc-lock.h>
-#include <sysdep-cancel.h>
-
-
-#define SHELL_PATH "/bin/sh" /* Path of the shell. */
-#define SHELL_NAME "sh" /* Name to give it. */
-
-
-#ifdef _LIBC_REENTRANT
-static struct sigaction intr, quit;
-static int sa_refcntr;
-__libc_lock_define_initialized (static, lock);
-
-# define DO_LOCK() __libc_lock_lock (lock)
-# define DO_UNLOCK() __libc_lock_unlock (lock)
-# define INIT_LOCK() ({ __libc_lock_init (lock); sa_refcntr = 0; })
-# define ADD_REF() sa_refcntr++
-# define SUB_REF() --sa_refcntr
-#else
-# define DO_LOCK()
-# define DO_UNLOCK()
-# define INIT_LOCK()
-# define ADD_REF() 0
-# define SUB_REF() 0
-#endif
-
-
-/* Execute LINE as a shell command, returning its status. */
-static int
-do_system (const char *line)
-{
- int status, save;
- pid_t pid;
- struct sigaction sa;
-#ifndef _LIBC_REENTRANT
- struct sigaction intr, quit;
-#endif
- sigset_t omask;
-
- sa.sa_handler = SIG_IGN;
- sa.sa_flags = 0;
- __sigemptyset (&sa.sa_mask);
-
- DO_LOCK ();
- if (ADD_REF () == 0)
- {
- if (__sigaction (SIGINT, &sa, &intr) < 0)
- {
- (void) SUB_REF ();
- goto out;
- }
- if (__sigaction (SIGQUIT, &sa, &quit) < 0)
- {
- save = errno;
- (void) SUB_REF ();
- goto out_restore_sigint;
- }
- }
- DO_UNLOCK ();
-
- /* We reuse the bitmap in the 'sa' structure. */
- __sigaddset (&sa.sa_mask, SIGCHLD);
- save = errno;
- if (__sigprocmask (SIG_BLOCK, &sa.sa_mask, &omask) < 0)
- {
-#ifndef _LIBC
- if (errno == ENOSYS)
- __set_errno (save);
- else
-#endif
- {
- DO_LOCK ();
- if (SUB_REF () == 0)
- {
- save = errno;
- (void) __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL);
- out_restore_sigint:
- (void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL);
- __set_errno (save);
- }
- out:
- DO_UNLOCK ();
- return -1;
- }
- }
-
-#ifdef CLEANUP_HANDLER
- CLEANUP_HANDLER;
-#endif
-
-#ifdef FORK
- pid = FORK ();
-#else
- pid = __fork ();
-#endif
- if (pid == (pid_t) 0)
- {
- /* Child side. */
- const char *new_argv[4];
- new_argv[0] = SHELL_NAME;
- new_argv[1] = "-c";
- new_argv[2] = line;
- new_argv[3] = NULL;
-
- /* Restore the signals. */
- (void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL);
- (void) __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL);
- (void) __sigprocmask (SIG_SETMASK, &omask, (sigset_t *) NULL);
- INIT_LOCK ();
-
- /* Exec the shell. */
- (void) __execve (SHELL_PATH, (char *const *) new_argv, __environ);
- _exit (127);
- }
- else if (pid < (pid_t) 0)
- /* The fork failed. */
- status = -1;
- else
- /* Parent side. */
- {
- /* Note the system() is a cancellation point. But since we call
- waitpid() which itself is a cancellation point we do not
- have to do anything here. */
- if (TEMP_FAILURE_RETRY (__waitpid (pid, &status, 0)) != pid)
- status = -1;
- }
-
-#ifdef CLEANUP_HANDLER
- CLEANUP_RESET;
-#endif
-
- save = errno;
- DO_LOCK ();
- if ((SUB_REF () == 0
- && (__sigaction (SIGINT, &intr, (struct sigaction *) NULL)
- | __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL)) != 0)
- || __sigprocmask (SIG_SETMASK, &omask, (sigset_t *) NULL) != 0)
- {
-#ifndef _LIBC
- /* glibc cannot be used on systems without waitpid. */
- if (errno == ENOSYS)
- __set_errno (save);
- else
-#endif
- status = -1;
- }
- DO_UNLOCK ();
-
- return status;
-}
-
-int
-__libc_system (const char *line)
-{
- if (line == NULL)
- /* Check that we have a command processor available. It might
- not be available after a chroot(), for example. */
- return do_system ("exit 0") == 0;
-
- return do_system (line);
-}
-weak_alias (__libc_system, system)