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#include <assert.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/un.h>
#define SUN_PATH "local-stream"
int main(void)
{
struct sockaddr_un addr = {
.sun_family = AF_UNIX,
.sun_path = SUN_PATH
};
socklen_t len = sizeof addr;
unlink(SUN_PATH);
close(0);
close(1);
assert(socket(PF_LOCAL, SOCK_STREAM, 0) == 0);
assert(bind(0, (struct sockaddr *) &addr, len) == 0);
assert(listen(0, 5) == 0);
memset(&addr, 0, sizeof addr);
assert(getsockname(0, (struct sockaddr *) &addr, &len) == 0);
pid_t pid = fork();
assert(pid >= 0);
if (pid) {
assert(accept(0, (struct sockaddr *) &addr, &len) == 1);
assert(close(0) == 0);
int status;
assert(waitpid(pid, &status, 0) == pid);
assert(status == 0);
assert(close(1) == 0);
} else {
assert(socket(PF_LOCAL, SOCK_STREAM, 0) == 1);
assert(close(0) == 0);
assert(connect(1, (struct sockaddr *) &addr, sizeof addr) == 0);
assert(close(1) == 0);
return 0;
}
unlink(SUN_PATH);
return 0;
}
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