Back to index

lightning-sunbird  0.9+nobinonly
sockpong.c
Go to the documentation of this file.
00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1999-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 /*
00039  * File: sockpong.c
00040  *
00041  * Description:
00042  * This test runs in conjunction with the sockping test.
00043  * The sockping test creates a socket pair and passes one
00044  * socket to this test.  Then the sockping test writes
00045  * "ping" to this test and this test writes "pong" back.
00046  * To run this pair of tests, just invoke sockping.
00047  *
00048  * Tested areas: process creation, socket pairs, file
00049  * descriptor inheritance.
00050  */
00051 
00052 #include "prerror.h"
00053 #include "prio.h"
00054 
00055 #include <stdio.h>
00056 #include <string.h>
00057 #include <stdlib.h>
00058 
00059 #define NUM_ITERATIONS 10
00060 
00061 int main()
00062 {
00063     PRFileDesc *sock;
00064     PRStatus status;
00065     char buf[1024];
00066     PRInt32 nBytes;
00067     int idx;
00068 
00069     sock = PR_GetInheritedFD("SOCKET");
00070     if (sock == NULL) {
00071         fprintf(stderr, "PR_GetInheritedFD failed\n");
00072         exit(1);
00073     }
00074     status = PR_SetFDInheritable(sock, PR_FALSE);
00075     if (status == PR_FAILURE) {
00076         fprintf(stderr, "PR_SetFDInheritable failed\n");
00077         exit(1);
00078     }
00079 
00080     for (idx = 0; idx < NUM_ITERATIONS; idx++) {
00081         memset(buf, 0, sizeof(buf));
00082         nBytes = PR_Read(sock, buf, sizeof(buf));
00083         if (nBytes == -1) {
00084             fprintf(stderr, "PR_Read failed: (%d, %d)\n",
00085                     PR_GetError(), PR_GetOSError());
00086             exit(1);
00087         }
00088         printf("pong process: received \"%s\"\n", buf);
00089         if (nBytes != 5) {
00090             fprintf(stderr, "pong process: expected 5 bytes but got %d bytes\n",
00091                     nBytes);
00092             exit(1);
00093         }
00094         if (strcmp(buf, "ping") != 0) {
00095             fprintf(stderr, "pong process: expected \"ping\" but got \"%s\"\n",
00096                     buf);
00097             exit(1);
00098         }
00099 
00100         strcpy(buf, "pong");
00101         printf("pong process: sending \"%s\"\n", buf);
00102         nBytes = PR_Write(sock, buf, 5);
00103         if (nBytes == -1) {
00104             fprintf(stderr, "PR_Write failed\n");
00105             exit(1);
00106         }
00107     }
00108 
00109     status = PR_Close(sock);
00110     if (status == PR_FAILURE) {
00111         fprintf(stderr, "PR_Close failed\n");
00112         exit(1);
00113     }
00114     return 0;
00115 }