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/* -*- 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/. */
/*
* Test: zerolen.c
*
* Description: a test for Bugzilla bug #17699. We perform
* the same test for PR_Writev, PR_Write, and PR_Send. In
* each test the server thread first fills up the connection
* to the client so that the next write operation will fail
* with EAGAIN. Then it calls PR_Writev, PR_Write, or PR_Send
* with a zero-length buffer. The client thread initially
* does not read so that the connection can be filled up.
* Then it empties the connection so that the server thread's
* PR_Writev, PR_Write, or PR_Send call can succeed.
*
* Bug #17699 is specific to the pthreads version on Unix,
* so on other platforms this test does nothing.
*/
#ifndef XP_UNIX
#include <stdio.h>
int main(int argc, char **argv)
{
printf("PASS\n");
return 0;
}
#else /* XP_UNIX */
#include "nspr.h"
#include "private/pprio.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
static void ClientThread(void *arg)
{
PRFileDesc *sock;
PRNetAddr addr;
PRUint16 port = (PRUint16) arg;
char buf[1024];
PRInt32 nbytes;
sock = PR_NewTCPSocket();
if (NULL == sock) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
if (PR_InitializeNetAddr(PR_IpAddrLoopback, port, &addr) == PR_FAILURE) {
fprintf(stderr, "PR_InitializeNetAddr failed\n");
exit(1);
}
if (PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) {
fprintf(stderr, "PR_Connect failed\n");
exit(1);
}
/*
* Sleep 5 seconds to force the server thread to get EAGAIN.
*/
if (PR_Sleep(PR_SecondsToInterval(5)) == PR_FAILURE) {
fprintf(stderr, "PR_Sleep failed\n");
exit(1);
}
/*
* Then start reading.
*/
while (nbytes = PR_Read(sock, buf, sizeof(buf)) > 0) {
/* empty loop body */
}
if (-1 == nbytes) {
fprintf(stderr, "PR_Read failed\n");
exit(1);
}
if (PR_Close(sock) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
int main()
{
PRFileDesc *listenSock;
PRFileDesc *acceptSock;
int osfd;
PRThread *clientThread;
PRNetAddr addr;
char buf[1024];
PRInt32 nbytes;
PRIOVec iov;
memset(buf, 0, sizeof(buf)); /* Initialize the buffer. */
listenSock = PR_NewTCPSocket();
if (NULL == listenSock) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
if (PR_InitializeNetAddr(PR_IpAddrAny, 0, &addr) == PR_FAILURE) {
fprintf(stderr, "PR_InitializeNetAddr failed\n");
exit(1);
}
if (PR_Bind(listenSock, &addr) == PR_FAILURE) {
fprintf(stderr, "PR_Bind failed\n");
exit(1);
}
/* Find out what port number we are bound to. */
if (PR_GetSockName(listenSock, &addr) == PR_FAILURE) {
fprintf(stderr, "PR_GetSockName failed\n");
exit(1);
}
if (PR_Listen(listenSock, 5) == PR_FAILURE) {
fprintf(stderr, "PR_Listen failed\n");
exit(1);
}
/*
* First test PR_Writev.
*/
clientThread = PR_CreateThread(PR_USER_THREAD,
ClientThread, (void *) PR_ntohs(PR_NetAddrInetPort(&addr)),
PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
if (NULL == clientThread) {
fprintf(stderr, "PR_CreateThread failed\n");
exit(1);
}
acceptSock = PR_Accept(listenSock, NULL, PR_INTERVAL_NO_TIMEOUT);
if (NULL == acceptSock) {
fprintf(stderr, "PR_Accept failed\n");
exit(1);
}
osfd = PR_FileDesc2NativeHandle(acceptSock);
while (write(osfd, buf, sizeof(buf)) != -1) {
/* empty loop body */
}
if ((errno != EAGAIN) && (errno != EWOULDBLOCK)) {
fprintf(stderr, "write failed\n");
exit(1);
}
iov.iov_base = buf;
iov.iov_len = 0;
printf("calling PR_Writev with a zero-length buffer\n");
fflush(stdout);
nbytes = PR_Writev(acceptSock, &iov, 1, PR_INTERVAL_NO_TIMEOUT);
if (nbytes != 0) {
fprintf(stderr, "PR_Writev should return 0 but returns %d\n", nbytes);
exit(1);
}
if (PR_Close(acceptSock) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
if (PR_JoinThread(clientThread) == PR_FAILURE) {
fprintf(stderr, "PR_JoinThread failed\n");
exit(1);
}
/*
* Then test PR_Write.
*/
clientThread = PR_CreateThread(PR_USER_THREAD,
ClientThread, (void *) PR_ntohs(PR_NetAddrInetPort(&addr)),
PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
if (NULL == clientThread) {
fprintf(stderr, "PR_CreateThread failed\n");
exit(1);
}
acceptSock = PR_Accept(listenSock, NULL, PR_INTERVAL_NO_TIMEOUT);
if (NULL == acceptSock) {
fprintf(stderr, "PR_Accept failed\n");
exit(1);
}
osfd = PR_FileDesc2NativeHandle(acceptSock);
while (write(osfd, buf, sizeof(buf)) != -1) {
/* empty loop body */
}
if ((errno != EAGAIN) && (errno != EWOULDBLOCK)) {
fprintf(stderr, "write failed\n");
exit(1);
}
printf("calling PR_Write with a zero-length buffer\n");
fflush(stdout);
nbytes = PR_Write(acceptSock, buf, 0);
if (nbytes != 0) {
fprintf(stderr, "PR_Write should return 0 but returns %d\n", nbytes);
exit(1);
}
if (PR_Close(acceptSock) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
if (PR_JoinThread(clientThread) == PR_FAILURE) {
fprintf(stderr, "PR_JoinThread failed\n");
exit(1);
}
/*
* Finally test PR_Send.
*/
clientThread = PR_CreateThread(PR_USER_THREAD,
ClientThread, (void *) PR_ntohs(PR_NetAddrInetPort(&addr)),
PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
if (NULL == clientThread) {
fprintf(stderr, "PR_CreateThread failed\n");
exit(1);
}
acceptSock = PR_Accept(listenSock, NULL, PR_INTERVAL_NO_TIMEOUT);
if (NULL == acceptSock) {
fprintf(stderr, "PR_Accept failed\n");
exit(1);
}
osfd = PR_FileDesc2NativeHandle(acceptSock);
while (write(osfd, buf, sizeof(buf)) != -1) {
/* empty loop body */
}
if ((errno != EAGAIN) && (errno != EWOULDBLOCK)) {
fprintf(stderr, "write failed\n");
exit(1);
}
printf("calling PR_Send with a zero-length buffer\n");
fflush(stdout);
nbytes = PR_Send(acceptSock, buf, 0, 0, PR_INTERVAL_NO_TIMEOUT);
if (nbytes != 0) {
fprintf(stderr, "PR_Send should return 0 but returns %d\n", nbytes);
exit(1);
}
if (PR_Close(acceptSock) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
if (PR_JoinThread(clientThread) == PR_FAILURE) {
fprintf(stderr, "PR_JoinThread failed\n");
exit(1);
}
if (PR_Close(listenSock) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
printf("PASS\n");
return 0;
}
#endif /* XP_UNIX */
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