tor-android/jni/libancillary/test.c

113 lines
3.1 KiB
C

/***************************************************************************
* libancillary - black magic on Unix domain sockets
* (C) Nicolas George
* test.c - testing and example program
***************************************************************************/
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include "ancillary.h"
void child_process(int sock)
{
int fd;
int fds[3], nfds;
char b[] = "This is on the received fd!\n";
if(ancil_recv_fd(sock, &fd)) {
perror("ancil_recv_fd");
exit(1);
} else {
printf("Received fd: %d\n", fd);
}
write(fd, b, sizeof(b));
close(fd);
sleep(2);
nfds = ancil_recv_fds(sock, fds, 3);
if(nfds < 0) {
perror("ancil_recv_fds");
exit(1);
} else {
printf("Received %d/3 fds : %d %d %d.\n", nfds,
fds[0], fds[1], fds[2]);
}
}
void parent_process(int sock)
{
int fds[2] = { 1, 2 };
if(ancil_send_fd(sock, 1)) {
perror("ancil_send_fd");
exit(1);
} else {
printf("Sent fd.\n");
}
sleep(1);
if(ancil_send_fds(sock, fds, 2)) {
perror("ancil_send_fds");
exit(1);
} else {
printf("Sent two fds.\n");
}
}
int main(void)
{
int sock[2];
if(socketpair(PF_UNIX, SOCK_STREAM, 0, sock)) {
perror("socketpair");
exit(1);
} else {
printf("Established socket pair: (%d, %d)\n", sock[0], sock[1]);
}
switch(fork()) {
case 0:
close(sock[0]);
child_process(sock[1]);
break;
case -1:
perror("fork");
exit(1);
default:
close(sock[1]);
parent_process(sock[0]);
wait(NULL);
break;
}
return(0);
}