2 #include <unistd.h>
3 #include <sys/wait.h>
4 #include <errno.h>
5 #include <string.h>
6 #include "test.h"
10 static int w(pid_t pid)  in w()  argument
13 	r = waitpid(pid, &s, 0);  in w()
14 	if (r == -1)  in w()
16 	else if (r != pid)  in w()
17 		t_error("child pid was %d, waitpid returned %d\n", pid, r);  in w()
20 	return -1;  in w()
25 	pid_t pid;  in test_exit()  local
26 	if((pid = vfork()) == 0) {  in test_exit()
30 	if (pid == -1) {  in test_exit()
34 	int r = w(pid);  in test_exit()
41 	pid_t pid;  in sh()  local
42 	if((pid = vfork()) == 0) {  in sh()
43 		execl("/bin/sh", "/bin/sh", "-c", cmd, (char*)0);  in sh()
47 	if (pid == -1) {  in sh()
49 		return -1;  in sh()
51 	return w(pid);  in sh()
73 	test_shell_kill("kill -9 $$", 9);  in main()