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