mirror of
https://github.com/zerotier/ZeroTierOne.git
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92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MIT
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*
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* Portions created by Alan Antonuk are Copyright (c) 2012-2013
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* Alan Antonuk. All Rights Reserved.
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*
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* Portions created by VMware are Copyright (c) 2007-2012 VMware, Inc.
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* All Rights Reserved.
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*
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* Portions created by Tony Garnock-Jones are Copyright (c) 2009-2010
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* VMware, Inc. and Tony Garnock-Jones. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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* ***** END LICENSE BLOCK *****
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <errno.h>
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#include <spawn.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "common.h"
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#include "process.h"
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extern char **environ;
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void pipeline(const char *const *argv, struct pipeline *pl) {
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posix_spawn_file_actions_t file_acts;
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int pipefds[2];
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if (pipe(pipefds)) {
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die_errno(errno, "pipe");
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}
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die_errno(posix_spawn_file_actions_init(&file_acts),
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"posix_spawn_file_actions_init");
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die_errno(posix_spawn_file_actions_adddup2(&file_acts, pipefds[0], 0),
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"posix_spawn_file_actions_adddup2");
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die_errno(posix_spawn_file_actions_addclose(&file_acts, pipefds[0]),
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"posix_spawn_file_actions_addclose");
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die_errno(posix_spawn_file_actions_addclose(&file_acts, pipefds[1]),
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"posix_spawn_file_actions_addclose");
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die_errno(posix_spawnp(&pl->pid, argv[0], &file_acts, NULL,
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(char *const *)argv, environ),
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"posix_spawnp: %s", argv[0]);
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die_errno(posix_spawn_file_actions_destroy(&file_acts),
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"posix_spawn_file_actions_destroy");
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if (close(pipefds[0])) {
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die_errno(errno, "close");
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}
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pl->infd = pipefds[1];
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}
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int finish_pipeline(struct pipeline *pl) {
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int status;
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if (close(pl->infd)) {
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die_errno(errno, "close");
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}
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if (waitpid(pl->pid, &status, 0) < 0) {
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die_errno(errno, "waitpid");
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}
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return WIFEXITED(status) && WEXITSTATUS(status) == 0;
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}
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