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/* $NetBSD: h_forkcli.c,v 1.1 2011/01/05 17:19:09 pooka Exp $ */
#include <sys/types.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <rump/rump_syscalls.h>
#include <rump/rumpclient.h>
static void
simple(void)
{
struct rumpclient_fork *rf;
pid_t pid1, pid2;
int fd, status;
if ((pid1 = rump_sys_getpid()) < 2)
errx(1, "unexpected pid %d", pid1);
fd = rump_sys_open("/dev/null", O_CREAT | O_RDWR);
if (rump_sys_write(fd, &fd, sizeof(fd)) != sizeof(fd))
errx(1, "write newlyopened /dev/null");
if ((rf = rumpclient_prefork()) == NULL)
err(1, "prefork");
switch (fork()) {
case -1:
err(1, "fork");
break;
case 0:
if (rumpclient_fork_init(rf) == -1)
err(1, "postfork init failed");
if ((pid2 = rump_sys_getpid()) < 2)
errx(1, "unexpected pid %d", pid2);
if (pid1 == pid2)
errx(1, "child and parent pids are equal");
/* check that we can access the fd, the close it and exit */
if (rump_sys_write(fd, &fd, sizeof(fd)) != sizeof(fd))
errx(1, "write child /dev/null");
rump_sys_close(fd);
break;
default:
/*
* check that we can access the fd, wait for the child, and
* check we can still access the fd
*/
if (rump_sys_write(fd, &fd, sizeof(fd)) != sizeof(fd))
errx(1, "write parent /dev/null");
if (wait(&status) == -1)
err(1, "wait failed");
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
errx(1, "child exited with status %d", status);
if (rump_sys_write(fd, &fd, sizeof(fd)) != sizeof(fd))
errx(1, "write parent /dev/null");
break;
}
}
static void
cancel(void)
{
/* XXX: not implemented in client / server !!! */
}
#define TESTSTR "i am your fatherrrrrrr"
#define TESTSLEN (sizeof(TESTSTR)-1)
static void
pipecomm(void)
{
struct rumpclient_fork *rf;
char buf[TESTSLEN+1];
int pipetti[2];
int status;
if (rump_sys_pipe(pipetti) == -1)
errx(1, "pipe");
if ((rf = rumpclient_prefork()) == NULL)
err(1, "prefork");
switch (fork()) {
case -1:
err(1, "fork");
break;
case 0:
if (rumpclient_fork_init(rf) == -1)
err(1, "postfork init failed");
memset(buf, 0, sizeof(buf));
if (rump_sys_read(pipetti[0], buf, TESTSLEN) != TESTSLEN)
err(1, "pipe read");
if (strcmp(TESTSTR, buf) != 0)
errx(1, "teststring doesn't match, got %s", buf);
break;
default:
if (rump_sys_write(pipetti[1], TESTSTR, TESTSLEN) != TESTSLEN)
err(1, "pipe write");
if (wait(&status) == -1)
err(1, "wait failed");
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
errx(1, "child exited with status %d", status);
break;
}
}
static void
fakeauth(void)
{
struct rumpclient_fork *rf;
uint32_t *auth;
int rv;
if ((rf = rumpclient_prefork()) == NULL)
err(1, "prefork");
/* XXX: we know the internal structure of rf */
auth = (void *)rf;
*(auth+3) = *(auth+3) ^ 0x1;
rv = rumpclient_fork_init(rf);
if (!(rv == -1 && errno == ESRCH))
exit(1);
}
struct parsa {
const char *arg; /* sp arg, el */
void (*spring)(void); /* spring into action */
} paragus[] = {
{ "simple", simple },
{ "cancel", cancel },
{ "pipecomm", pipecomm },
{ "fakeauth", fakeauth },
};
int
main(int argc, char *argv[])
{
unsigned i;
if (argc != 2)
errx(1, "invalid usage");
if (rumpclient_init() == -1)
err(1, "rumpclient init");
for (i = 0; i < __arraycount(paragus); i++) {
if (strcmp(argv[1], paragus[i].arg) == 0) {
paragus[i].spring();
break;
}
}
if (i == __arraycount(paragus)) {
printf("invalid test %s\n", argv[1]);
exit(1);
}
exit(0);
}
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