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gecko-dev/nsprpub/pr/tests/nbconn.c

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15 KiB
C
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* A test for nonblocking connect. Functions tested include PR_Connect,
* PR_Poll, and PR_GetConnectStatus.
*
* The test should be invoked with a host name, for example:
* nbconn www.netscape.com
* It will do a nonblocking connect to port 80 (HTTP) on that host,
* and when connected, issue the "GET /" HTTP command.
*
* You should run this test in three ways:
* 1. To a known web site, such as www.netscape.com. The HTML of the
* top-level page at the web site should be printed.
* 2. To a machine not running a web server at port 80. This test should
* fail. Ideally the error code should be PR_CONNECT_REFUSED_ERROR.
* But it is possible to return PR_UNKNOWN_ERROR on certain platforms.
* 3. To an unreachable machine, for example, a machine that is off line.
* The test should fail after the connect times out. Ideally the
* error code should be PR_IO_TIMEOUT_ERROR, but it is possible to
* return PR_UNKNOWN_ERROR on certain platforms.
*/
#include "nspr.h"
#include "plgetopt.h"
#include <stdio.h>
#include <string.h>
#define SERVER_MAX_BIND_COUNT 100
#define DATA_BUF_SIZE 256
#define TCP_SERVER_PORT 10000
#define TCP_UNUSED_PORT 211
typedef struct Server_Param {
PRFileDesc *sp_fd; /* server port */
} Server_Param;
static void PR_CALLBACK TCP_Server(void *arg);
int _debug_on;
#define DPRINTF(arg) if (_debug_on) printf arg
static PRIntn connection_success_test();
static PRIntn connection_failure_test();
int main(int argc, char **argv)
{
PRHostEnt he;
char buf[1024];
PRNetAddr addr;
PRPollDesc pd;
PRStatus rv;
PRSocketOptionData optData;
const char *hostname = NULL;
PRIntn default_case, n, bytes_read, bytes_sent;
PRInt32 failed_already = 0;
/*
* -d debug mode
*/
PLOptStatus os;
PLOptState *opt = PL_CreateOptState(argc, argv, "d");
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
{
if (PL_OPT_BAD == os) continue;
switch (opt->option)
{
case 0: /* debug mode */
hostname = opt->value;
break;
case 'd': /* debug mode */
_debug_on = 1;
break;
default:
break;
}
}
PL_DestroyOptState(opt);
PR_STDIO_INIT();
if (hostname)
default_case = 0;
else
default_case = 1;
if (default_case) {
/*
* In the default case the following tests are executed:
* 1. successful connection: a server thread accepts a connection
* from the main thread
* 2. unsuccessful connection: the main thread tries to connect to a
* nonexistent port and expects to get an error
*/
rv = connection_success_test();
if (rv == 0)
rv = connection_failure_test();
return rv;
} else {
PRFileDesc *sock;
if (PR_GetHostByName(argv[1], buf, sizeof(buf), &he) == PR_FAILURE) {
printf( "Unknown host: %s\n", argv[1]);
exit(1);
} else {
printf( "host: %s\n", buf);
}
PR_EnumerateHostEnt(0, &he, 80, &addr);
sock = PR_NewTCPSocket();
optData.option = PR_SockOpt_Nonblocking;
optData.value.non_blocking = PR_TRUE;
PR_SetSocketOption(sock, &optData);
rv = PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT);
if (rv == PR_FAILURE && PR_GetError() == PR_IN_PROGRESS_ERROR) {
printf( "Connect in progress\n");
}
pd.fd = sock;
pd.in_flags = PR_POLL_WRITE | PR_POLL_EXCEPT;
n = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
if (n == -1) {
printf( "PR_Poll failed\n");
exit(1);
}
printf( "PR_Poll returns %d\n", n);
if (pd.out_flags & PR_POLL_READ) {
printf( "PR_POLL_READ\n");
}
if (pd.out_flags & PR_POLL_WRITE) {
printf( "PR_POLL_WRITE\n");
}
if (pd.out_flags & PR_POLL_EXCEPT) {
printf( "PR_POLL_EXCEPT\n");
}
if (pd.out_flags & PR_POLL_ERR) {
printf( "PR_POLL_ERR\n");
}
if (pd.out_flags & PR_POLL_NVAL) {
printf( "PR_POLL_NVAL\n");
}
if (PR_GetConnectStatus(&pd) == PR_SUCCESS) {
printf("PR_GetConnectStatus: connect succeeded\n");
PR_Write(sock, "GET /\r\n\r\n", 9);
PR_Shutdown(sock, PR_SHUTDOWN_SEND);
pd.in_flags = PR_POLL_READ;
while (1) {
n = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
printf( "poll returns %d\n", n);
n = PR_Read(sock, buf, sizeof(buf));
printf( "read returns %d\n", n);
if (n <= 0) {
break;
}
PR_Write(PR_STDOUT, buf, n);
}
} else {
if (PR_GetError() == PR_IN_PROGRESS_ERROR) {
printf( "PR_GetConnectStatus: connect still in progress\n");
exit(1);
}
printf( "PR_GetConnectStatus: connect failed: (%ld, %ld)\n",
PR_GetError(), PR_GetOSError());
}
PR_Close(sock);
printf( "PASS\n");
return 0;
}
}
/*
* TCP Server
* Server Thread
* Accept a connection from the client and write some data
*/
static void PR_CALLBACK
TCP_Server(void *arg)
{
Server_Param *sp = (Server_Param *) arg;
PRFileDesc *sockfd, *newsockfd;
char data_buf[DATA_BUF_SIZE];
PRIntn rv, bytes_read;
sockfd = sp->sp_fd;
if ((newsockfd = PR_Accept(sockfd, NULL,
PR_INTERVAL_NO_TIMEOUT)) == NULL) {
fprintf(stderr,"ERROR - PR_Accept failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
return;
}
bytes_read = 0;
while (bytes_read != DATA_BUF_SIZE) {
rv = PR_Read(newsockfd, data_buf + bytes_read ,
DATA_BUF_SIZE - bytes_read);
if (rv < 0) {
fprintf(stderr,"Error - PR_Read failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
PR_Close(newsockfd);
return;
}
PR_ASSERT(rv != 0);
bytes_read += rv;
}
DPRINTF(("Bytes read from client - %d\n",bytes_read));
rv = PR_Write(newsockfd, data_buf,DATA_BUF_SIZE);
if (rv < 0) {
fprintf(stderr,"Error - PR_Write failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
PR_Close(newsockfd);
return;
}
PR_ASSERT(rv == DATA_BUF_SIZE);
DPRINTF(("Bytes written to client - %d\n",rv));
PR_Close(newsockfd);
}
/*
* test for successful connection using a non-blocking socket
*/
static PRIntn
connection_success_test()
{
PRFileDesc *sockfd = NULL, *conn_fd = NULL;
PRNetAddr netaddr;
PRInt32 i, rv;
PRPollDesc pd;
PRSocketOptionData optData;
PRThread *thr = NULL;
Server_Param sp;
char send_buf[DATA_BUF_SIZE], recv_buf[DATA_BUF_SIZE];
PRIntn default_case, n, bytes_read, bytes_sent;
PRIntn failed_already = 0;
/*
* Create a tcp socket
*/
if ((sockfd = PR_NewTCPSocket()) == NULL) {
fprintf(stderr,"Error - PR_NewTCPSocket failed\n");
failed_already=1;
goto def_exit;
}
memset(&netaddr, 0 , sizeof(netaddr));
netaddr.inet.family = PR_AF_INET;
netaddr.inet.port = PR_htons(TCP_SERVER_PORT);
netaddr.inet.ip = PR_htonl(PR_INADDR_ANY);
/*
* try a few times to bind server's address, if addresses are in
* use
*/
i = 0;
while (PR_Bind(sockfd, &netaddr) < 0) {
if (PR_GetError() == PR_ADDRESS_IN_USE_ERROR) {
netaddr.inet.port += 2;
if (i++ < SERVER_MAX_BIND_COUNT)
continue;
}
fprintf(stderr,"ERROR - PR_Bind failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
if (PR_Listen(sockfd, 32) < 0) {
fprintf(stderr,"ERROR - PR_Listen failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
if (PR_GetSockName(sockfd, &netaddr) < 0) {
fprintf(stderr,"ERROR - PR_GetSockName failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
if ((conn_fd = PR_NewTCPSocket()) == NULL) {
fprintf(stderr,"Error - PR_NewTCPSocket failed\n");
failed_already=1;
goto def_exit;
}
optData.option = PR_SockOpt_Nonblocking;
optData.value.non_blocking = PR_TRUE;
PR_SetSocketOption(conn_fd, &optData);
rv = PR_Connect(conn_fd, &netaddr, PR_INTERVAL_NO_TIMEOUT);
if (rv == PR_FAILURE) {
if (PR_GetError() == PR_IN_PROGRESS_ERROR) {
DPRINTF(("Connect in progress\n"));
} else {
fprintf(stderr,"Error - PR_Connect failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
}
/*
* Now create a thread to accept a connection
*/
sp.sp_fd = sockfd;
thr = PR_CreateThread(PR_USER_THREAD, TCP_Server, (void *)&sp,
PR_PRIORITY_NORMAL, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
if (thr == NULL) {
fprintf(stderr,"Error - PR_CreateThread failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
DPRINTF(("Created TCP_Server thread [0x%x]\n",thr));
pd.fd = conn_fd;
pd.in_flags = PR_POLL_WRITE | PR_POLL_EXCEPT;
n = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
if (n == -1) {
fprintf(stderr,"Error - PR_Poll failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
if (PR_GetConnectStatus(&pd) == PR_SUCCESS) {
PRInt32 rv;
DPRINTF(("Connection successful\n"));
/*
* Write some data, read it back and check data integrity to
* make sure the connection is good
*/
pd.in_flags = PR_POLL_WRITE;
bytes_sent = 0;
memset(send_buf, 'a', DATA_BUF_SIZE);
while (bytes_sent != DATA_BUF_SIZE) {
rv = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
if (rv < 0) {
fprintf(stderr,"Error - PR_Poll failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
PR_ASSERT((rv == 1) && (pd.out_flags == PR_POLL_WRITE));
rv = PR_Write(conn_fd, send_buf + bytes_sent,
DATA_BUF_SIZE - bytes_sent);
if (rv < 0) {
fprintf(stderr,"Error - PR_Write failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
PR_ASSERT(rv > 0);
bytes_sent += rv;
}
DPRINTF(("Bytes written to server - %d\n",bytes_sent));
PR_Shutdown(conn_fd, PR_SHUTDOWN_SEND);
pd.in_flags = PR_POLL_READ;
bytes_read = 0;
memset(recv_buf, 0, DATA_BUF_SIZE);
while (bytes_read != DATA_BUF_SIZE) {
rv = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
if (rv < 0) {
fprintf(stderr,"Error - PR_Poll failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
PR_ASSERT((rv == 1) && (pd.out_flags == PR_POLL_READ));
rv = PR_Read(conn_fd, recv_buf + bytes_read ,
DATA_BUF_SIZE - bytes_read);
if (rv < 0) {
fprintf(stderr,"Error - PR_Read failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
PR_ASSERT(rv != 0);
bytes_read += rv;
}
DPRINTF(("Bytes read from server - %d\n",bytes_read));
/*
* verify the data read
*/
if (memcmp(send_buf, recv_buf, DATA_BUF_SIZE) != 0) {
fprintf(stderr,"ERROR - data corruption\n");
failed_already=1;
goto def_exit;
}
DPRINTF(("Data integrity verified\n"));
} else {
fprintf(stderr,"PR_GetConnectStatus: connect failed: (%ld, %ld)\n",
PR_GetError(), PR_GetOSError());
failed_already = 1;
goto def_exit;
}
def_exit:
if (thr) {
PR_JoinThread(thr);
thr = NULL;
}
if (sockfd) {
PR_Close(sockfd);
sockfd = NULL;
}
if (conn_fd) {
PR_Close(conn_fd);
conn_fd = NULL;
}
if (failed_already)
return 1;
else
return 0;
}
/*
* test for connection to a nonexistent port using a non-blocking socket
*/
static PRIntn
connection_failure_test()
{
PRFileDesc *sockfd = NULL, *conn_fd = NULL;
PRNetAddr netaddr;
PRInt32 i, rv;
PRPollDesc pd;
PRSocketOptionData optData;
PRIntn n, failed_already = 0;
/*
* Create a tcp socket
*/
if ((sockfd = PR_NewTCPSocket()) == NULL) {
fprintf(stderr,"Error - PR_NewTCPSocket failed\n");
failed_already=1;
goto def_exit;
}
memset(&netaddr, 0 , sizeof(netaddr));
netaddr.inet.family = PR_AF_INET;
netaddr.inet.port = PR_htons(TCP_SERVER_PORT);
netaddr.inet.ip = PR_htonl(PR_INADDR_ANY);
/*
* try a few times to bind server's address, if addresses are in
* use
*/
i = 0;
while (PR_Bind(sockfd, &netaddr) < 0) {
if (PR_GetError() == PR_ADDRESS_IN_USE_ERROR) {
netaddr.inet.port += 2;
if (i++ < SERVER_MAX_BIND_COUNT)
continue;
}
fprintf(stderr,"ERROR - PR_Bind failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
if (PR_GetSockName(sockfd, &netaddr) < 0) {
fprintf(stderr,"ERROR - PR_GetSockName failed: (%d,%d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
#ifdef AIX
/*
* On AIX, set to unused/reserved port
*/
netaddr.inet.port = PR_htons(TCP_UNUSED_PORT);
#endif
if ((conn_fd = PR_NewTCPSocket()) == NULL) {
fprintf(stderr,"Error - PR_NewTCPSocket failed\n");
failed_already=1;
goto def_exit;
}
optData.option = PR_SockOpt_Nonblocking;
optData.value.non_blocking = PR_TRUE;
PR_SetSocketOption(conn_fd, &optData);
rv = PR_Connect(conn_fd, &netaddr, PR_INTERVAL_NO_TIMEOUT);
if (rv == PR_FAILURE) {
DPRINTF(("PR_Connect to a non-listen port failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError()));
} else {
PR_ASSERT(rv == PR_SUCCESS);
fprintf(stderr,"Error - PR_Connect succeeded, expected to fail\n");
failed_already=1;
goto def_exit;
}
pd.fd = conn_fd;
pd.in_flags = PR_POLL_WRITE | PR_POLL_EXCEPT;
n = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
if (n == -1) {
fprintf(stderr,"Error - PR_Poll failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
failed_already=1;
goto def_exit;
}
if (PR_GetConnectStatus(&pd) == PR_SUCCESS) {
PRInt32 rv;
fprintf(stderr,"PR_GetConnectStatus succeeded, expected to fail\n");
failed_already = 1;
goto def_exit;
}
rv = PR_GetError();
DPRINTF(("Connection failed, successfully with PR_Error %d\n",rv));
def_exit:
if (sockfd) {
PR_Close(sockfd);
sockfd = NULL;
}
if (conn_fd) {
PR_Close(conn_fd);
conn_fd = NULL;
}
if (failed_already)
return 1;
else
return 0;
}
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