The Tor Browser: nsprpub/pr/tests/peek.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/peek.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/peek.c

Fri, 16 Jan 2015 04:50:19 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 04:50:19 +0100
branch: TOR_BUG_9701
changeset 13: 44a2da4a2ab2
permissions: -rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

 /* -*- 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/. */
 /*
  * A test case for the PR_MSG_PEEK flag of PR_Recv().
  *
  * Test both blocking and non-blocking sockets.
  */
 #include "nspr.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #define BUFFER_SIZE 1024
 static int iterations = 10;
 /*
  * In iteration i, recv_amount[i] is the number of bytes we
  * wish to receive, and send_amount[i] is the number of bytes
  * we actually send.  Therefore, the number of elements in the
  * recv_amount or send_amount array should equal to 'iterations'.
  * For this test to pass we need to ensure that
  *     recv_amount[i] <= BUFFER_SIZE,
  *     send_amount[i] <= BUFFER_SIZE,
  *     send_amount[i] <= recv_amount[i].
  */
 static PRInt32 recv_amount[10] = {
 , 128, 256, 1024, 512, 512, 128, 256, 32, 32};
 static PRInt32 send_amount[10] = {
 ,  64, 128, 1024, 512, 256, 128,  64, 16, 32};
 /* Blocking I/O */
 static void ServerB(void *arg)
 {
     PRFileDesc *listenSock = (PRFileDesc *) arg;
     PRFileDesc *sock;
     char buf[BUFFER_SIZE];
     PRInt32 nbytes;
     int i;
     int j;
     sock = PR_Accept(listenSock, NULL, PR_INTERVAL_NO_TIMEOUT);
     if (NULL == sock) {
         fprintf(stderr, "PR_Accept failed\n");
         exit(1);
     }
     for (i = 0; i < iterations; i++) {
         memset(buf, 0, sizeof(buf));
         nbytes = PR_Recv(sock, buf, recv_amount[i],
                 PR_MSG_PEEK, PR_INTERVAL_NO_TIMEOUT);
         if (-1 == nbytes) {
             fprintf(stderr, "PR_Recv failed\n");
             exit(1);
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Recv returned %d, absurd!\n", nbytes);
             exit(1);
         }
         for (j = 0; j < nbytes; j++) {
             if (buf[j] != 2*i) {
                 fprintf(stderr, "byte %d should be %d but is %d\n",
                         j, 2*i, buf[j]);
                 exit(1);
             }
         }
         fprintf(stderr, "server: peeked expected data\n");
         memset(buf, 0, sizeof(buf));
         nbytes = PR_Recv(sock, buf, recv_amount[i],
                 PR_MSG_PEEK, PR_INTERVAL_NO_TIMEOUT);
         if (-1 == nbytes) {
             fprintf(stderr, "PR_Recv failed\n");
             exit(1);
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Recv returned %d, absurd!\n", nbytes);
             exit(1);
         }
         for (j = 0; j < nbytes; j++) {
             if (buf[j] != 2*i) {
                 fprintf(stderr, "byte %d should be %d but is %d\n",
                         j, 2*i, buf[j]);
                 exit(1);
             }
         }
         fprintf(stderr, "server: peeked expected data\n");
         memset(buf, 0, sizeof(buf));
         nbytes = PR_Recv(sock, buf, recv_amount[i],
 , PR_INTERVAL_NO_TIMEOUT);
         if (-1 == nbytes) {
             fprintf(stderr, "PR_Recv failed\n");
             exit(1);
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Recv returned %d, absurd!\n", nbytes);
             exit(1);
         }
         for (j = 0; j < nbytes; j++) {
             if (buf[j] != 2*i) {
                 fprintf(stderr, "byte %d should be %d but is %d\n",
                         j, 2*i, buf[j]);
                 exit(1);
             }
         }
         fprintf(stderr, "server: received expected data\n");
         PR_Sleep(PR_SecondsToInterval(1));
         memset(buf, 2*i+1, send_amount[i]);
         nbytes = PR_Send(sock, buf, send_amount[i],
 , PR_INTERVAL_NO_TIMEOUT);
         if (-1 == nbytes) {
             fprintf(stderr, "PR_Send failed\n");
             exit(1);
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Send returned %d, absurd!\n", nbytes);
             exit(1);
         }
     }
     if (PR_Close(sock) == PR_FAILURE) {
         fprintf(stderr, "PR_Close failed\n");
         exit(1);
     }
 }
 /* Non-blocking I/O */
 static void ClientNB(void *arg)
 {
     PRFileDesc *sock;
     PRSocketOptionData opt;
     PRUint16 port = (PRUint16) arg;
     PRNetAddr addr;
     char buf[BUFFER_SIZE];
     PRPollDesc pd;
     PRInt32 npds;
     PRInt32 nbytes;
     int i;
     int j;
     sock = PR_OpenTCPSocket(PR_AF_INET6);
     if (NULL == sock) {
         fprintf(stderr, "PR_OpenTCPSocket failed\n");
         exit(1);
     }
     opt.option = PR_SockOpt_Nonblocking;
     opt.value.non_blocking = PR_TRUE;
     if (PR_SetSocketOption(sock, &opt) == PR_FAILURE) {
         fprintf(stderr, "PR_SetSocketOption failed\n");
         exit(1);
     }
     memset(&addr, 0, sizeof(addr));
     if (PR_SetNetAddr(PR_IpAddrLoopback, PR_AF_INET6, port, &addr)
             == PR_FAILURE) {
         fprintf(stderr, "PR_SetNetAddr failed\n");
         exit(1);
     }
     if (PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) {
         if (PR_GetError() != PR_IN_PROGRESS_ERROR) {
             fprintf(stderr, "PR_Connect failed\n");
             exit(1);
         }
         pd.fd = sock;
         pd.in_flags = PR_POLL_WRITE | PR_POLL_EXCEPT;
         npds = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
         if (-1 == npds) {
             fprintf(stderr, "PR_Poll failed\n");
             exit(1);
         }
         if (1 != npds) {
             fprintf(stderr, "PR_Poll returned %d, absurd!\n", npds);
             exit(1);
         }
         if (PR_GetConnectStatus(&pd) == PR_FAILURE) {
             fprintf(stderr, "PR_GetConnectStatus failed\n");
             exit(1);
         }
     }
     for (i = 0; i < iterations; i++) {
         PR_Sleep(PR_SecondsToInterval(1));
         memset(buf, 2*i, send_amount[i]);
         while ((nbytes = PR_Send(sock, buf, send_amount[i],
 , PR_INTERVAL_NO_TIMEOUT)) == -1) {
             if (PR_GetError() != PR_WOULD_BLOCK_ERROR) {
                 fprintf(stderr, "PR_Send failed\n");
                 exit(1);
             }
             pd.fd = sock;
             pd.in_flags = PR_POLL_WRITE;
             npds = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
             if (-1 == npds) {
                 fprintf(stderr, "PR_Poll failed\n");
                 exit(1);
             }
             if (1 != npds) {
                 fprintf(stderr, "PR_Poll returned %d, absurd!\n", npds);
                 exit(1);
             }
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Send returned %d, absurd!\n", nbytes);
             exit(1);
         }
         memset(buf, 0, sizeof(buf));
         while ((nbytes = PR_Recv(sock, buf, recv_amount[i],
                 PR_MSG_PEEK, PR_INTERVAL_NO_TIMEOUT)) == -1) {
             if (PR_GetError() != PR_WOULD_BLOCK_ERROR) {
                 fprintf(stderr, "PR_Recv failed\n");
                 exit(1);
             }
             pd.fd = sock;
             pd.in_flags = PR_POLL_READ;
             npds = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
             if (-1 == npds) {
                 fprintf(stderr, "PR_Poll failed\n");
                 exit(1);
             }
             if (1 != npds) {
                 fprintf(stderr, "PR_Poll returned %d, absurd!\n", npds);
                 exit(1);
             }
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Recv returned %d, absurd!\n", nbytes);
             exit(1);
         }
         for (j = 0; j < nbytes; j++) {
             if (buf[j] != 2*i+1) {
                 fprintf(stderr, "byte %d should be %d but is %d\n",
                         j, 2*i+1, buf[j]);
                 exit(1);
             }
         }
         fprintf(stderr, "client: peeked expected data\n");
         memset(buf, 0, sizeof(buf));
         nbytes = PR_Recv(sock, buf, recv_amount[i],
                 PR_MSG_PEEK, PR_INTERVAL_NO_TIMEOUT);
         if (-1 == nbytes) {
             fprintf(stderr, "PR_Recv failed\n");
             exit(1);
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Recv returned %d, absurd!\n", nbytes);
             exit(1);
         }
         for (j = 0; j < nbytes; j++) {
             if (buf[j] != 2*i+1) {
                 fprintf(stderr, "byte %d should be %d but is %d\n",
                         j, 2*i+1, buf[j]);
                 exit(1);
             }
         }
         fprintf(stderr, "client: peeked expected data\n");
         memset(buf, 0, sizeof(buf));
         nbytes = PR_Recv(sock, buf, recv_amount[i],
 , PR_INTERVAL_NO_TIMEOUT);
         if (-1 == nbytes) {
             fprintf(stderr, "PR_Recv failed\n");
             exit(1);
         }
         if (send_amount[i] != nbytes) {
             fprintf(stderr, "PR_Recv returned %d, absurd!\n", nbytes);
             exit(1);
         }
         for (j = 0; j < nbytes; j++) {
             if (buf[j] != 2*i+1) {
                 fprintf(stderr, "byte %d should be %d but is %d\n",
                         j, 2*i+1, buf[j]);
                 exit(1);
             }
         }
         fprintf(stderr, "client: received expected data\n");
     }
     if (PR_Close(sock) == PR_FAILURE) {
         fprintf(stderr, "PR_Close failed\n");
         exit(1);
     }
 }
 static void
 RunTest(PRThreadScope scope, PRFileDesc *listenSock, PRUint16 port)
 {
     PRThread *server, *client;
     server = PR_CreateThread(PR_USER_THREAD, ServerB, listenSock,
             PR_PRIORITY_NORMAL, scope, PR_JOINABLE_THREAD, 0);
     if (NULL == server) {
         fprintf(stderr, "PR_CreateThread failed\n");
         exit(1);
     }
     client = PR_CreateThread(
             PR_USER_THREAD, ClientNB, (void *) port,
             PR_PRIORITY_NORMAL, scope, PR_JOINABLE_THREAD, 0);
     if (NULL == client) {
         fprintf(stderr, "PR_CreateThread failed\n");
         exit(1);
     }
     if (PR_JoinThread(server) == PR_FAILURE) {
         fprintf(stderr, "PR_JoinThread failed\n");
         exit(1);
     }
     if (PR_JoinThread(client) == PR_FAILURE) {
         fprintf(stderr, "PR_JoinThread failed\n");
         exit(1);
     }
 }
 int main(int argc, char **argv)
 {
     PRFileDesc *listenSock;
     PRNetAddr addr;
     PRUint16 port;
     listenSock = PR_OpenTCPSocket(PR_AF_INET6);
     if (NULL == listenSock) {
         fprintf(stderr, "PR_OpenTCPSocket failed\n");
         exit(1);
     }
     memset(&addr, 0, sizeof(addr));
     if (PR_SetNetAddr(PR_IpAddrAny, PR_AF_INET6, 0, &addr) == PR_FAILURE) {
         fprintf(stderr, "PR_SetNetAddr failed\n");
         exit(1);
     }
     if (PR_Bind(listenSock, &addr) == PR_FAILURE) {
         fprintf(stderr, "PR_Bind failed\n");
         exit(1);
     }
     if (PR_GetSockName(listenSock, &addr) == PR_FAILURE) {
         fprintf(stderr, "PR_GetSockName failed\n");
         exit(1);
     }
     port = PR_ntohs(addr.ipv6.port);
     if (PR_Listen(listenSock, 5) == PR_FAILURE) {
         fprintf(stderr, "PR_Listen failed\n");
         exit(1);
     }
     fprintf(stderr, "Running the test with local threads\n");
     RunTest(PR_LOCAL_THREAD, listenSock, port);
     fprintf(stderr, "Running the test with global threads\n");
     RunTest(PR_GLOBAL_THREAD, listenSock, port);
     if (PR_Close(listenSock) == PR_FAILURE) {
         fprintf(stderr, "PR_Close failed\n");
         exit(1);
     }
     printf("PASS\n");
     return 0;
 }

The Tor Browser / annotate

nsprpub/pr/tests/peek.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/peek.c