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61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <glib.h>
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#include <signal.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <wlr/util/log.h>
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#include "common/spawn.h"
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void
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spawn_async_no_shell(char const *command)
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{
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GError *err = NULL;
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gchar **argv = NULL;
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assert(command);
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/* Use glib's shell-parse to mimic Openbox's behaviour */
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g_shell_parse_argv((gchar *)command, NULL, &argv, &err);
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if (err) {
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g_message("%s", err->message);
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g_error_free(err);
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return;
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}
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/*
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* Avoid zombie processes by using a double-fork, whereby the
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* grandchild becomes orphaned & the responsibility of the OS.
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*/
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pid_t child = 0, grandchild = 0;
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child = fork();
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switch (child) {
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case -1:
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wlr_log(WLR_ERROR, "unable to fork()");
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goto out;
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case 0:
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setsid();
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sigset_t set;
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sigemptyset(&set);
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sigprocmask(SIG_SETMASK, &set, NULL);
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grandchild = fork();
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if (grandchild == 0) {
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execvp(argv[0], argv);
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_exit(0);
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} else if (grandchild < 0) {
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wlr_log(WLR_ERROR, "unable to fork()");
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}
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_exit(0);
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default:
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break;
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}
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waitpid(child, NULL, 0);
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out:
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g_strfreev(argv);
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}
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