205 lines
6.0 KiB
HTML
205 lines
6.0 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>SSL_Perror()--Print SSL Error Message API</title>
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- Begin Header Records -->
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<!-- Created for V5R1 by Chris Gloe -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<a name="Top_Of_Page"></a>
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<!--Java sync-link-->
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<h2>SSL_Perror()--Print SSL Error Message</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax
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<pre>
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#include <qsossl.h>
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void SSL_Perror(int <em>sslreturnvalue</em>,
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const char* <em>string</em>);
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</pre>
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Service Program Name: QSOSSLSR<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong><em>SSL_Perror()</em></strong> function prints an error message
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to stderr. If <strong><em>string</em></strong> is not NULL and does not point
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to a null character, the string pointed to by <strong><em>string</em></strong>
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is printed to the standard error stream. If a <strong><em>string</em></strong>
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is printed, it is followed by a colon and a space. Regardless of if
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<strong><em>string</em></strong> was printed or not, the message associated
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with the <strong><em>sslreturnvalue</em></strong> is printed followed by a
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new-line character. Also, the message associated with the thread's
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<strong><em>errno</em></strong> is printed followed by a new-line
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character.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt>int <strong><em>sslreturnvalue</em></strong> (Input) </dt>
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<dd>The Return Value received from a SSL API.<br>
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<br>
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</dd>
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<dt>char* <strong><em>string</em></strong> (Input) </dt>
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<dd>The string to be printed prior to the message associated with the
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<strong><em>sslreturnvalue</em></strong>. If no preceding message is desired,
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NULL must be entered.</dd>
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</dl>
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<br>
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<h3>Authorities</h3>
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<p>No authorization is required.</p>
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<br>
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<h3>Return Value</h3>
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<p>There is no return value.</p>
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<br>
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<h3>Error Conditions</h3>
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<p>This API calls the Retrieve SSL Runtime Error Message (SSL_Strerror) API in
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order to perform its task. It inherits all error conditions from this function.
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If the <strong><em>sslreturnvalue</em></strong> is unrecognized or if unable to
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retrieve the message corresponding to <strong><em>sslreturnvalue</em></strong>,
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then an <strong>Unknown error</strong> message will be printed following the
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<strong><em>string</em></strong>. Also, the message associated with the value
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found in the thread's <strong><em>errno</em></strong> is printed.
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<strong>Note:</strong> the value of errno may be updated by
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<strong><em>SSL_Perror()</em></strong> in some error conditions.</p>
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<br>
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<h3>Error Messages</h3>
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<p>See Error Conditions.</p>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li><a href="sslstrer.htm">SSL_Strerror()</a>--Retrieve SSL Runtime Error
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Message<br><br></li>
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<li><a href="sslcreat.htm">SSL_Create()</a>--Enable SSL Support for the Specified
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Socket Descriptor<br><br></li>
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<li><a href="ssldest.htm">SSL_Destroy()</a>--End SSL Support for the Specified SSL
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Session<br><br></li>
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<li><a href="sslhands.htm">SSL_Handshake()</a>--Initiate the SSL Handshake
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Protocol<br><br></li>
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<li><a href="sslinit.htm">SSL_Init()</a>--Initialize the Current Job for
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SSL<br><br></li>
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<li><a href="sslinita.htm">SSL_Init_Application()</a>--Initialize the Current Job
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for SSL Processing Based on the Application Identifier<br><br></li>
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<li><a href="sslread.htm">SSL_Read()</a>--Receive Data from an SSL-Enabled Socket
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Descriptor<br><br></li>
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<li><a href="sslwrite.htm">SSL_Write()</a>--Write Data to an SSL-Enabled Socket
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Descriptor<br><br></li>
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</ul>
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<br>
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<h3>Example</h3>
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<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
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for information pertaining to code examples.</p>
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<p>The following example shows how <strong>SSL_Perror()</strong> is used:</p>
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<pre>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <qsossl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <errno.h>
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/* bufferLen is 250 bytes */
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#define bufferLen 250
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void main()
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{
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int bufferLen, on = 1, rc = 0, sd, sd2, addrlen = 0;
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char buffer[bufferLen];
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SSLInit sslinit;
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SSLHandle* sslh;
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struct sockaddr_in addr;
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unsigned short int cipher[3] = {
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SSL_RSA_WITH_RC4_128_MD5,
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SSL_RSA_WITH_RC4_128_SHA,
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SSL_RSA_EXPORT_WITH_RC4_40_MD5
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};
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/*************************************************/
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/* memset sslinit structure to hex zeros and */
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/* fill in values for the sslinit structure */
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/*************************************************/
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memset((char *)&SSL_Init, 0x00, sizeof(sslinit));
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sslinit.keyringFileName = "/keyringfile.kyr";
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sslinit.keyringPassword = NULL;
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sslinit.cipherSuiteList = &cipher[0];
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sslinit.cipherSuiteListLen = 3;
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/*************************************************/
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/* initialize SSL security call SSL_Init */
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/*************************************************/
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if ((rc = SSL_Init(&sslinit)) != 0)
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{
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<strong>SSL_Perror</strong>(rc, "Could not initialize SSL");
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}
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...
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}
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</pre>
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<br>
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<hr>
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API introduced: V5R1
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a> </td>
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</tr>
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</table></center>
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</body>
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</html>
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