The Tor Browser: nsprpub/pr/tests/udpsrv.c@7e26c7da4463 (annotated)

nsprpub/pr/tests/udpsrv.c@7e26c7da4463 (annotated)

nsprpub/pr/tests/udpsrv.c

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 /* -*- 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, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*******************************************************************
 ** 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;
     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,
 );
     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,
 );
     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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nsprpub/pr/tests/udpsrv.c@7e26c7da4463 (annotated)

nsprpub/pr/tests/udpsrv.c