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