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pjs/nsprpub/pr/tests/udpsrv.c

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C
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*******************************************************************
** udpsrc.c -- Test basic function of UDP server
**
** udpsrv operates on the same machine with program udpclt.
** udpsrv is the server side of a udp sockets application.
** udpclt is the client side of a udp sockets application.
**
** The test is designed to assist developers in porting/debugging
** the UDP socket functions of NSPR.
**
** This test is not a stress test.
**
** main() starts two threads: UDP_Server() and UDP_Client();
** main() uses PR_JoinThread() to wait for the threads to complete.
**
** UDP_Server() does repeated recvfrom()s from a socket.
** He detects an EOF condition set by UDP_Client(). For each
** packet received by UDP_Server(), he checks its content for
** expected content, then sends the packet back to UDP_Client().
**
** UDP_Client() sends packets to UDP_Server() using sendto()
** he recieves packets back from the server via recvfrom().
** After he sends enough packets containing UDP_AMOUNT_TO_WRITE
** bytes of data, he sends an EOF message.
**
** The test issues a pass/fail message at end.
**
** Notes:
** The variable "_debug_on" can be set to 1 to cause diagnostic
** messages related to client/server synchronization. Useful when
** the test hangs.
**
** Error messages are written to stdout.
**
********************************************************************
*/
/* --- include files --- */
#include "nspr.h"
#include "prpriv.h"
#include "plgetopt.h"
#include "prttools.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifdef XP_PC
#define mode_t int
#endif
#define UDP_BUF_SIZE 4096
#define UDP_DGRAM_SIZE 128
#define UDP_AMOUNT_TO_WRITE (PRInt32)((UDP_DGRAM_SIZE * 1000l) +1)
#define NUM_UDP_CLIENTS 1
#define NUM_UDP_DATAGRAMS_PER_CLIENT 5
#define UDP_SERVER_PORT 9050
#define UDP_CLIENT_PORT 9053
#define MY_INADDR PR_INADDR_ANY
#define PEER_INADDR PR_INADDR_LOOPBACK
#define UDP_TIMEOUT 400000
/* #define UDP_TIMEOUT PR_INTERVAL_NO_TIMEOUT */
/* --- static data --- */
static PRIntn _debug_on = 0;
static PRBool passed = PR_TRUE;
static PRUint32 cltBytesRead = 0;
static PRUint32 srvBytesRead = 0;
static PRFileDesc *output = NULL;
/* --- static function declarations --- */
#define DPRINTF(arg) if (_debug_on) PR_fprintf(output, arg)
/*******************************************************************
** ListNetAddr() -- Display the Net Address on stdout
**
** Description: displays the component parts of a PRNetAddr struct
**
** Arguments: address of PRNetAddr structure to display
**
** Returns: void
**
** Notes:
**
********************************************************************
*/
void ListNetAddr( char *msg, PRNetAddr *na )
{
char mbuf[256];
sprintf( mbuf, "ListNetAddr: %s family: %d, port: %d, ip: %8.8X\n",
msg, na->inet.family, PR_ntohs( na->inet.port), PR_ntohl(na->inet.ip) );
#if 0
DPRINTF( mbuf );
#endif
} /* --- end ListNetAddr() --- */
/********************************************************************
** UDP_Server() -- Test a UDP server application
**
** Description: The Server side of a UDP Client/Server application.
**
** Arguments: none
**
** Returns: void
**
** Notes:
**
**
********************************************************************
*/
static void PR_CALLBACK UDP_Server( void *arg )
{
static char svrBuf[UDP_BUF_SIZE];
PRFileDesc *svrSock;
PRInt32 rv;
PRNetAddr netaddr;
PRBool bound = PR_FALSE;
PRBool endOfInput = PR_FALSE;
PRInt32 numBytes = UDP_DGRAM_SIZE;
DPRINTF("udpsrv: UDP_Server(): starting\n" );
/* --- Create the socket --- */
DPRINTF("udpsrv: UDP_Server(): Creating UDP Socket\n" );
svrSock = PR_NewUDPSocket();
if ( svrSock == NULL )
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Server(): PR_NewUDPSocket() returned NULL\n" );
return;
}
/* --- Initialize the sockaddr_in structure --- */
memset( &netaddr, 0, sizeof( netaddr ));
netaddr.inet.family = PR_AF_INET;
netaddr.inet.port = PR_htons( UDP_SERVER_PORT );
netaddr.inet.ip = PR_htonl( MY_INADDR );
/* --- Bind the socket --- */
while ( !bound )
{
DPRINTF("udpsrv: UDP_Server(): Binding socket\n" );
rv = PR_Bind( svrSock, &netaddr );
if ( rv < 0 )
{
if ( PR_GetError() == PR_ADDRESS_IN_USE_ERROR )
{
if (debug_mode) PR_fprintf(output, "udpsrv: UDP_Server(): \
PR_Bind(): reports: PR_ADDRESS_IN_USE_ERROR\n");
PR_Sleep( PR_MillisecondsToInterval( 2000 ));
continue;
}
else
{
passed = PR_FALSE;
if (debug_mode) PR_fprintf(output, "udpsrv: UDP_Server(): \
PR_Bind(): failed: %ld with error: %ld\n",
rv, PR_GetError() );
PR_Close( svrSock );
return;
}
}
else
bound = PR_TRUE;
}
ListNetAddr( "UDP_Server: after bind", &netaddr );
/* --- Recv the socket --- */
while( !endOfInput )
{
DPRINTF("udpsrv: UDP_Server(): RecvFrom() socket\n" );
rv = PR_RecvFrom( svrSock, svrBuf, numBytes, 0, &netaddr, UDP_TIMEOUT );
if ( rv == -1 )
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Server(): PR_RecvFrom(): failed with error: %ld\n",
PR_GetError() );
PR_Close( svrSock );
return;
}
ListNetAddr( "UDP_Server after RecvFrom", &netaddr );
srvBytesRead += rv;
if ( svrBuf[0] == 'E' )
{
DPRINTF("udpsrv: UDP_Server(): EOF on input detected\n" );
endOfInput = PR_TRUE;
}
/* --- Send the socket --- */
DPRINTF("udpsrv: UDP_Server(): SendTo(): socket\n" );
rv = PR_SendTo( svrSock, svrBuf, rv, 0, &netaddr, PR_INTERVAL_NO_TIMEOUT );
if ( rv == -1 )
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Server(): PR_SendTo(): failed with error: %ld\n",
PR_GetError() );
PR_Close( svrSock );
return;
}
ListNetAddr( "UDP_Server after SendTo", &netaddr );
}
/* --- Close the socket --- */
DPRINTF("udpsrv: UDP_Server(): Closing socket\n" );
rv = PR_Close( svrSock );
if ( rv != PR_SUCCESS )
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Server(): PR_Close(): failed to close socket\n" );
return;
}
DPRINTF("udpsrv: UDP_Server(): Normal end\n" );
} /* --- end UDP_Server() --- */
static char cltBuf[UDP_BUF_SIZE];
static char cltBufin[UDP_BUF_SIZE];
/********************************************************************
** UDP_Client() -- Test a UDP client application
**
** Description:
**
** Arguments:
**
**
** Returns:
** 0 -- Successful execution
** 1 -- Test failed.
**
** Notes:
**
**
********************************************************************
*/
static void PR_CALLBACK UDP_Client( void *arg )
{
PRFileDesc *cltSock;
PRInt32 rv;
PRBool bound = PR_FALSE;
PRNetAddr netaddr;
PRNetAddr netaddrx;
PRBool endOfInput = PR_FALSE;
PRInt32 numBytes = UDP_DGRAM_SIZE;
PRInt32 writeThisMany = UDP_AMOUNT_TO_WRITE;
int i;
DPRINTF("udpsrv: UDP_Client(): starting\n" );
/* --- Create the socket --- */
cltSock = PR_NewUDPSocket();
if ( cltSock == NULL )
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Client(): PR_NewUDPSocket() returned NULL\n" );
return;
}
/* --- Initialize the sockaddr_in structure --- */
memset( &netaddr, 0, sizeof( netaddr ));
netaddr.inet.family = PR_AF_INET;
netaddr.inet.ip = PR_htonl( MY_INADDR );
netaddr.inet.port = PR_htons( UDP_CLIENT_PORT );
/* --- Initialize the write buffer --- */
for ( i = 0; i < UDP_BUF_SIZE ; i++ )
cltBuf[i] = i;
/* --- Bind the socket --- */
while ( !bound )
{
DPRINTF("udpsrv: UDP_Client(): Binding socket\n" );
rv = PR_Bind( cltSock, &netaddr );
if ( rv < 0 )
{
if ( PR_GetError() == PR_ADDRESS_IN_USE_ERROR )
{
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Client(): PR_Bind(): reports: PR_ADDRESS_IN_USE_ERROR\n");
PR_Sleep( PR_MillisecondsToInterval( 2000 ));
continue;
}
else
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Client(): PR_Bind(): failed: %ld with error: %ld\n",
rv, PR_GetError() );
PR_Close( cltSock );
return;
}
}
else
bound = PR_TRUE;
}
ListNetAddr( "UDP_Client after Bind", &netaddr );
/* --- Initialize the sockaddr_in structure --- */
memset( &netaddr, 0, sizeof( netaddr ));
netaddr.inet.family = PR_AF_INET;
netaddr.inet.ip = PR_htonl( PEER_INADDR );
netaddr.inet.port = PR_htons( UDP_SERVER_PORT );
/* --- send and receive packets until no more data left */
while( !endOfInput )
{
/*
** Signal EOF in the data stream on the last packet
*/
if ( writeThisMany <= UDP_DGRAM_SIZE )
{
DPRINTF("udpsrv: UDP_Client(): Send EOF packet\n" );
cltBuf[0] = 'E';
endOfInput = PR_TRUE;
}
/* --- SendTo the socket --- */
if ( writeThisMany > UDP_DGRAM_SIZE )
numBytes = UDP_DGRAM_SIZE;
else
numBytes = writeThisMany;
writeThisMany -= numBytes;
{
char mbuf[256];
sprintf( mbuf, "udpsrv: UDP_Client(): write_this_many: %d, numbytes: %d\n",
writeThisMany, numBytes );
DPRINTF( mbuf );
}
DPRINTF("udpsrv: UDP_Client(): SendTo(): socket\n" );
rv = PR_SendTo( cltSock, cltBuf, numBytes, 0, &netaddr, UDP_TIMEOUT );
if ( rv == -1 )
{
passed = PR_FALSE;
if (debug_mode)
PR_fprintf(output,
"udpsrv: UDP_Client(): PR_SendTo(): failed with error: %ld\n",
PR_GetError() );
PR_Close( cltSock );
return;
}
ListNetAddr( "UDP_Client after SendTo", &netaddr );
/* --- RecvFrom the socket --- */
memset( cltBufin, 0, UDP_BUF_SIZE );
DPRINTF("udpsrv: UDP_Client(): RecvFrom(): socket\n" );
rv = PR_RecvFrom( cltSock, cltBufin, numBytes, 0, &netaddrx, UDP_TIMEOUT );
if ( rv == -1 )
{
passed = PR_FALSE;
if (debug_mode) PR_fprintf(output,
"udpsrv: UDP_Client(): PR_RecvFrom(): failed with error: %ld\n",
PR_GetError() );
PR_Close( cltSock );
return;
}
ListNetAddr( "UDP_Client after RecvFrom()", &netaddr );
cltBytesRead += rv;
/* --- verify buffer --- */
for ( i = 0; i < rv ; i++ )
{
if ( cltBufin[i] != i )
{
/* --- special case, end of input --- */
if ( endOfInput && i == 0 && cltBufin[0] == 'E' )
continue;
passed = PR_FALSE;
if (debug_mode) PR_fprintf(output,
"udpsrv: UDP_Client(): return data mismatch\n" );
PR_Close( cltSock );
return;
}
}
if (debug_mode) PR_fprintf(output, ".");
}
/* --- Close the socket --- */
DPRINTF("udpsrv: UDP_Server(): Closing socket\n" );
rv = PR_Close( cltSock );
if ( rv != PR_SUCCESS )
{
passed = PR_FALSE;
if (debug_mode) PR_fprintf(output,
"udpsrv: UDP_Client(): PR_Close(): failed to close socket\n" );
return;
}
DPRINTF("udpsrv: UDP_Client(): ending\n" );
} /* --- end UDP_Client() --- */
/********************************************************************
** main() -- udpsrv
**
** arguments:
**
** Returns:
** 0 -- Successful execution
** 1 -- Test failed.
**
** Description:
**
** Standard test case setup.
**
** Calls the function UDP_Server()
**
********************************************************************
*/
int main(int argc, char **argv)
{
PRThread *srv, *clt;
/* The command line argument: -d is used to determine if the test is being run
in debug mode. The regress tool requires only one line output:PASS or FAIL.
All of the printfs associated with this test has been handled with a if (debug_mode)
test.
Usage: test_name -d -v
*/
PLOptStatus os;
PLOptState *opt = PL_CreateOptState(argc, argv, "dv");
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
{
if (PL_OPT_BAD == os) continue;
switch (opt->option)
{
case 'd': /* debug mode */
debug_mode = 1;
break;
case 'v': /* verbose mode */
_debug_on = 1;
break;
default:
break;
}
}
PL_DestroyOptState(opt);
PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
PR_STDIO_INIT();
output = PR_STDERR;
#ifdef XP_MAC
SetupMacPrintfLog("udpsrv.log");
#endif
PR_SetConcurrency(4);
/*
** Create the Server thread
*/
DPRINTF( "udpsrv: Creating Server Thread\n" );
srv = PR_CreateThread( PR_USER_THREAD,
UDP_Server,
(void *) 0,
PR_PRIORITY_LOW,
PR_LOCAL_THREAD,
PR_JOINABLE_THREAD,
0 );
if ( srv == NULL )
{
if (debug_mode) PR_fprintf(output, "udpsrv: Cannot create server thread\n" );
passed = PR_FALSE;
}
/*
** Give the Server time to Start
*/
DPRINTF( "udpsrv: Pausing to allow Server to start\n" );
PR_Sleep( PR_MillisecondsToInterval(200) );
/*
** Create the Client thread
*/
DPRINTF( "udpsrv: Creating Client Thread\n" );
clt = PR_CreateThread( PR_USER_THREAD,
UDP_Client,
(void *) 0,
PR_PRIORITY_LOW,
PR_LOCAL_THREAD,
PR_JOINABLE_THREAD,
0 );
if ( clt == NULL )
{
if (debug_mode) PR_fprintf(output, "udpsrv: Cannot create server thread\n" );
passed = PR_FALSE;
}
/*
**
*/
DPRINTF("udpsrv: Waiting to join Server & Client Threads\n" );
PR_JoinThread( srv );
PR_JoinThread( clt );
/*
** Evaluate test results
*/
if (debug_mode) PR_fprintf(output, "\n\nudpsrv: main(): cltBytesRead(%ld), \
srvBytesRead(%ld), expected(%ld)\n",
cltBytesRead, srvBytesRead, UDP_AMOUNT_TO_WRITE );
if ( cltBytesRead != srvBytesRead || cltBytesRead != UDP_AMOUNT_TO_WRITE )
{
passed = PR_FALSE;
}
PR_Cleanup();
if ( passed )
return 0;
else
return 1;
} /* --- end main() --- */
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