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<title>websExpand -- GoAhead WebServer API</title>
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<td class="titleLeft" align=left width="33%"><b>websExpand</b></TD><td class="titleCenter" align=center width="33%"><b>
GoAhead WebServer API</b></TD><td class="titleRight" align=right width="33%"><B>
GoAhead EMF</B></TD></TR> </TABLE><HR>
<h2>Synopsis</h2><p>Expand dollar variables in a string.</p><h2>Prototype</h2><pre>
#include "webs.h"
char_t *<b>websExpand</b>(webs_t wp, char_t *buf, char_t *string, int bufsize);
</pre><h2>Parameters</h2><p><table width=90%>
<TR>
<TD width=40>wp
<TD> Web server connection handle
<TR>
<TD width=40>buf
<TD>Output buffer
<TR>
<TD width=40>string
<TD> Input string<tr>
<td width=40 cellpadding = 20>len</td><td cellpadding = 20> Size of output buffer</td></tr></table><h2>Description</h2><P>The websExpand procedure can be used to expand all
dollar variables. These include all the standard CGI variables, extended GoAhead WebServer variables and all current
per request variables. In addition to the standard set below, all
request header variables are stored as "HTTP_name" where name is request header keyword mapped
to lower case. If a particular dollar variable is not found,
the original text for that variable is unchanged. </P><P>
</P><P>If the <EM>buffer</EM> is NULL, the expanded string is
returned in a dynamically allocated buffer. Use <STRONG>bfree</STRONG>
to free the buffer when you are finished. </P><P>
</P><P>
The standard variable set includes: </P><P>
</P><p><table width="90%" border="1">
<tr><td>COMPANY</td><td>Defined company name</td></tr>
<tr><td>CONTENT_LENGTH</td><td>Length of posted content</td></tr>
<tr><td>DBNAME</td><td>Primary database name "primary"</td></tr>
<tr><td>DESCRIPTION</td><td>Product description</td></tr>
<tr><td>D_OS</td><td>Operating system name</td></tr>
<tr><td>D_PROD</td><td>Home directory for the product</td></tr>
<tr><td>D_SOLUTION</td><td>Home directory for solution packs</td></tr>
<tr><td>GATEWAY_INTERFACE</td><td>Version of this gateway interface</td></tr>
<TR>
<TD>HTTP_AUTHORIZATION
<TD>Password supplied by the browser
<TR>
<TD>HTTP_name
<TD>Where name is any key name in the browser request
<tr><td>OS</td><td>Operating system</td></tr>
<tr><td>PATH_INFO</td><td>URL path information after /form</td></tr>
<tr><td>PATH_TRANSLATED</td><td>File system path name for URL document</td></tr>
<tr><td>PRODUCT</td><td>Product name</td></tr>
<tr><td>QUERY_STRING</td><td>Complete query string</td></tr>
<tr><td>REMOTE_ADDR</td><td>Requesting browsers IP address</td></tr>
<tr><td>REMOTE_HOST</td><td>Requesting browsers host name</td></tr>
<tr><td>REQUEST_METHOD</td><td>Request operation type</td></tr>
<tr><td>SERVER_HOST</td><td>Host name for this web server</td></tr>
<tr><td>SERVER_PORT</td><td>TCP/IP port used by this web server</td></tr>
<tr><td>SERVER_URL</td><td>URL to address the home page for this web server</td></tr>
<tr><td>VERSION</td><td>Version number (n.n) for this product</td></tr>
<tr><td>VERSION_FULL</td><td>Full version number (n.n.n)</td></tr>
</table><h2>Return Value</h2><p> Returns the <i>buffer</i> supplied or dynamically allocated
buffer if <i>buffer</i> was NULL. Return NULL on errors.</p><h2>Example</h2><pre>
websExpand(wp, NULL, "$COMPANY $SERVER_PORT", -1);
</pre><h2>See Also</h2><p>bfree</p></td></tr></table>
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