friedkiwi/ibm-information-center
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
14ed2849c6
ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzab6_5.4.0.1/x1sendfile.htm

244 lines
9.3 KiB
HTML
Raw Blame History

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="security" content="public" />
<meta name="Robots" content="index,follow" />
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
<meta name="DC.Type" content="reference" />
<meta name="DC.Title" content="Example: Use accept_and_recv() and send_file() APIs to send contents of a file" />
<meta name="abstract" content="This example enables a server to communicate with a client by using the send_file() and accept_and_recv() APIs." />
<meta name="description" content="This example enables a server to communicate with a client by using the send_file() and accept_and_recv() APIs." />
<meta name="DC.Relation" scheme="URI" content="xsendfile.htm" />
<meta name="DC.Relation" scheme="URI" content="../apis/sendfile.htm" />
<meta name="DC.Relation" scheme="URI" content="../apis/acceptr.htm" />
<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2001, 2006" />
<meta name="DC.Format" content="XHTML" />
<meta name="DC.Identifier" content="x1sendfile" />
<meta name="DC.Language" content="en-us" />
<!-- All rights reserved. Licensed Materials Property of IBM -->
<!-- US Government Users Restricted Rights -->
<!-- Use, duplication or disclosure restricted by -->
<!-- GSA ADP Schedule Contract with IBM Corp. -->
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
<link rel="stylesheet" type="text/css" href="./ic.css" />
<title>Example: Use accept_and_recv() and send_file() APIs
to send contents of a file</title>
</head>
<body id="x1sendfile"><a name="x1sendfile"><!-- --></a>
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
<h1 class="topictitle1">Example: Use <span class="apiname">accept_and_recv()</span> and <span class="apiname">send_file()</span> APIs
to send contents of a file</h1>
<div><p>This example enables a server to communicate with a client by using
the <span class="apiname">send_file()</span> and <span class="apiname">accept_and_recv()</span> APIs.</p>
<div class="section"><div class="note"><span class="notetitle">Note:</span> By using the code examples, you agree to the terms of the <a href="codedisclaimer.htm">Code license and disclaimer information</a>.</div>
<pre>/*************************************************/
/* Server example send file data to client */
/*************************************************/
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;errno.h&gt;
#include &lt;fcntl.h&gt;
#include &lt;sys/socket.h&gt;
#include &lt;netinet/in.h&gt;
#define SERVER_PORT 12345
main (int argc, char *argv[])
{
int i, num, rc, flag = 1;
int fd, listen_sd, accept_sd = -1;
size_t local_addr_length;
size_t remote_addr_length;
size_t total_sent;
struct sockaddr_in addr;
struct sockaddr_in local_addr;
struct sockaddr_in remote_addr;
struct sf_parms parms;
char buffer[255];
/*************************************************/
/* If an argument is specified, use it to */
/* control the number of incoming connections */
/*************************************************/
if (argc &gt;= 2)
num = atoi(argv[1]);
else
num = 1;
/*************************************************/
/* Create an AF_INET stream socket to receive */
/* incoming connections on */
/*************************************************/
listen_sd = socket(AF_INET, SOCK_STREAM, 0);
if (listen_sd &lt; 0)
{
perror("socket() failed");
exit(-1);
}
/*************************************************/
/* Set the SO_REUSEADDR bit so that you do not */
/* need to wait 2 minutes before restarting */
/* the server */
/*************************************************/
rc = setsockopt(listen_sd,
SOL_SOCKET,
SO_REUSEADDR,
(char *)&amp;flag,
sizeof(flag));
if (rc &lt; 0)
{
perror("setsockop() failed");
close(listen_sd);
exit(-1);
}
/*************************************************/
/* Bind the socket */
/*************************************************/
memset(&amp;addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(SERVER_PORT);
rc = bind(listen_sd,
(struct sockaddr *)&amp;addr, sizeof(addr));
if (rc &lt; 0)
{
perror("bind() failed");
close(listen_sd);
exit(-1);
}
/*************************************************/
/* Set the listen backlog */
/*************************************************/
rc = listen(listen_sd, 5);
if (rc &lt; 0)
{
perror("listen() failed");
close(listen_sd);
exit(-1);
}
/*************************************************/
/* Initialize the local and remote addr lengths */
/*************************************************/
local_addr_length = sizeof(local_addr);
remote_addr_length = sizeof(remote_addr);
/*************************************************/
/* Inform the user that the server is ready */
/*************************************************/
printf("The server is ready\n");
/*************************************************/
/* Go through the loop once for each connection */
/*************************************************/
for (i=0; i &lt; num; i++)
{
/**********************************************/
/* Wait for an incoming connection */
/**********************************************/
printf("Iteration: %d\n", i+1);
printf(" waiting on accept_and_recv()\n");
rc = accept_and_recv(listen_sd,
&amp;accept_sd,
(struct sockaddr *)&amp;remote_addr,
&amp;remote_addr_length,
(struct sockaddr *)&amp;local_addr,
&amp;local_addr_length,
&amp;buffer,
sizeof(buffer));
if (rc &lt; 0)
{
perror("accept_and_recv() failed");
close(listen_sd);
close(accept_sd);
exit(-1);
}
printf(" Request for file: %s\n", buffer);
/**********************************************/
/* Open the file to retrieve */
/**********************************************/
fd = open(buffer, O_RDONLY);
if (fd &lt; 0)
{
perror("open() failed");
close(listen_sd);
close(accept_sd);
exit(-1);
}
/**********************************************/
/* Initialize the sf_parms structure */
/**********************************************/
memset(&amp;parms, 0, sizeof(parms));
parms.file_descriptor = fd;
parms.file_bytes = -1;
/**********************************************/
/* Initialize the counter of the total number */
/* of bytes sent */
/**********************************************/
total_sent = 0;
/**********************************************/
/* Loop until the entire file has been sent */
/**********************************************/
do
{
rc = send_file(&amp;accept_sd, &amp;parms, SF_CLOSE);
if (rc &lt; 0)
{
perror("send_file() failed");
close(fd);
close(listen_sd);
close(accept_sd);
exit(-1);
}
total_sent += parms.bytes_sent;
} while (rc == 1);
printf(" Total number of bytes sent: %d\n", total_sent);
/**********************************************/
/* Close the file that is sent out */
/**********************************************/
close(fd);
}
/*************************************************/
/* Close the listen socket */
/*************************************************/
close(listen_sd);
/*************************************************/
/* Close the accept socket */
/*************************************************/
if (accept_sd != -1)
close(accept_sd);
}</pre>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="xsendfile.htm" title="These examples enable a server to communicate with a client by using the send_file() and accept_and_recv() APIs.">Examples: Transfer file data using send_file() and accept_and_recv() APIs</a></div>
</div>
<div class="relinfo"><strong>Related information</strong><br />
<div><a href="../apis/sendfile.htm">send_file()</a></div>
<div><a href="../apis/acceptr.htm">accept_and_recv()</a></div>
</div>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink