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From: Emilio Pozuelo Monfort <pochu27@gmail.com> From: Svante Signell <svante.signell@gmail.com> Pass the file paths of executable to the exec server, both relative and absolute, which exec needs to properly execute and avertise #!-scripts. Previously, the exec server tried to guess the name from argv[0] but argv[0] only contains the executable name by convention. * hurd/hurdexec.c (_hurd_exec): Deprecate function. (_hurd_exec_paths): New function. * hurd/hurd.h (_hurd_exec): Deprecate function. (_hurd_exec_paths): Declare function. * hurd/Versions: Export _hurd_exec_paths. * sysdeps/mach/hurd/execve.c: Include <stdlib.h> and <stdio.h> (__execve): Use __getcwd to build absolute path, and use _hurd_exec_paths instead of _hurd_exec. * sysdeps/mach/hurd/spawni.c: Likewise. * sysdeps/mach/hurd/fexecve.c: Use _hurd_exec_paths instead of _hurd_exec.
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/* Copyright (C) 1991-2018 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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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <hurd.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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/* Replace the current process, executing FILE_NAME with arguments ARGV and
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environment ENVP. ARGV and ENVP are terminated by NULL pointers. */
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int
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__execve (const char *file_name, char *const argv[], char *const envp[])
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{
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error_t err;
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char *concat_name = NULL;
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const char *abs_path;
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file_t file = __file_name_lookup (file_name, O_EXEC, 0);
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if (file == MACH_PORT_NULL)
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return -1;
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if (file_name[0] == '/')
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{
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/* Already an absolute path */
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abs_path = file_name;
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}
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else
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{
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/* Relative path */
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char *cwd = __getcwd (NULL, 0);
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if (cwd == NULL)
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{
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__mach_port_deallocate (__mach_task_self (), file);
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return -1;
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}
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int res = __asprintf (&concat_name, "%s/%s", cwd, file_name);
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free (cwd);
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if (res == -1)
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{
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__mach_port_deallocate (__mach_task_self (), file);
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return -1;
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}
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abs_path = concat_name;
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}
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/* Hopefully this will not return. */
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err = _hurd_exec_paths (__mach_task_self (), file,
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file_name, abs_path, argv, envp);
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/* Oh well. Might as well be tidy. */
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__mach_port_deallocate (__mach_task_self (), file);
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free (concat_name);
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return __hurd_fail (err);
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}
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weak_alias (__execve, execve)
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