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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
/*
* File: pipepong.c
*
* Description:
* This test runs in conjunction with the pipeping test.
* The pipeping test creates two pipes and redirects the
* stdin and stdout of this test to the pipes. Then the
* pipeping test writes "ping" to this test and this test
* writes "pong" back. Note that this test does not depend
* on NSPR at all. To run this pair of tests, just invoke
* pipeping.
*
* Tested areas: process creation, pipes, file descriptor
* inheritance, standard I/O redirection.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define NUM_ITERATIONS 10
int main(int argc, char **argv)
{
char buf[1024];
size_t nBytes;
int idx;
for (idx = 0; idx < NUM_ITERATIONS; idx++) {
memset(buf, 0, sizeof(buf));
nBytes = fread(buf, 1, 5, stdin);
fprintf(stderr, "pong process: received \"%s\"\n", buf);
if (nBytes != 5) {
fprintf(stderr, "pong process: expected 5 bytes but got %d bytes\n",
nBytes);
exit(1);
}
if (strcmp(buf, "ping") != 0) {
fprintf(stderr, "pong process: expected \"ping\" but got \"%s\"\n",
buf);
exit(1);
}
strcpy(buf, "pong");
fprintf(stderr, "pong process: sending \"%s\"\n", buf);
nBytes = fwrite(buf, 1, 5, stdout);
if (nBytes != 5) {
fprintf(stderr, "pong process: fwrite failed\n");
exit(1);
}
fflush(stdout);
}
return 0;
}