Dmitry V. Levin
495f525d68
* tests/dumpio.expected: New file. * tests/unix-pair-send-recv.c: New file. * tests/dumpio.test: New test. * tests/Makefile.am (check_PROGRAMS): Add unix-pair-send-recv. (TESTS): Add dumpio.test. (EXTRA_DIST): Add dumpio.expected. * tests/.gitignore: Add unix-pair-send-recv.
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
#include <assert.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/wait.h>
|
|
|
|
static void
|
|
transpose(char *str, int len)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < len / 2; ++i) {
|
|
char c = str[i];
|
|
str[i] = str[len - 1 - i];
|
|
str[len - 1 - i] = c;
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int ac, char **av)
|
|
{
|
|
assert(ac == 2);
|
|
const int len = strlen(av[1]);
|
|
assert(len);
|
|
|
|
(void) close(0);
|
|
(void) close(1);
|
|
|
|
int sv[2];
|
|
assert(socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == 0);
|
|
assert(sv[0] == 0);
|
|
assert(sv[1] == 1);
|
|
|
|
pid_t pid = fork();
|
|
assert(pid >= 0);
|
|
|
|
if (pid) {
|
|
assert(close(1) == 0);
|
|
transpose(av[1], len);
|
|
assert(sendto(0, av[1], len, MSG_DONTROUTE, NULL, 0) == len);
|
|
assert(recvfrom(0, av[1], len, MSG_WAITALL, NULL, NULL) == len);
|
|
assert(close(0) == 0);
|
|
|
|
int status;
|
|
assert(waitpid(pid, &status, 0) == pid);
|
|
assert(status == 0);
|
|
} else {
|
|
assert(close(0) == 0);
|
|
assert(recvfrom(1, av[1], len, MSG_WAITALL, NULL, NULL) == len);
|
|
transpose(av[1], len);
|
|
assert(sendto(1, av[1], len, MSG_DONTROUTE, NULL, 0) == len);
|
|
assert(recvfrom(1, av[1], len, MSG_WAITALL, NULL, NULL) == 0);
|
|
assert(close(1) == 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|