cgi.c

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00001 /*
00002  * Copyright (C) 2001-2003 by egnite Software GmbH. All rights reserved.
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions
00006  * are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the copyright holders nor the names of
00014  *    contributors may be used to endorse or promote products derived
00015  *    from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
00018  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00019  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00020  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
00021  * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00022  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00023  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
00024  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
00025  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00026  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
00027  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00028  * SUCH DAMAGE.
00029  *
00030  * For additional information see http://www.ethernut.de/
00031  */
00032 
00033 /*
00034  * $Log: cgi.c,v $
00035  * Revision 1.2  2006/10/08 16:48:22  haraldkipp
00036  * Documentation fixed
00037  *
00038  * Revision 1.1.1.1  2003/05/09 14:41:56  haraldkipp
00039  * Initial using 3.2.1
00040  *
00041  * Revision 1.7  2003/02/04 18:17:31  harald
00042  * Version 3 released
00043  *
00044  * Revision 1.6  2002/06/26 17:29:49  harald
00045  * First pre-release with 2.4 stack
00046  *
00047  */
00048 
00049 #include <string.h>
00050 #include <sys/heap.h>
00051 
00052 #include <pro/httpd.h>
00053 
00058 
00059 CGIFUNCTION *volatile cgiFunctionList = 0;
00060 
00072 int NutRegisterCgi(char *name, int (*func) (FILE *, REQUEST *))
00073 {
00074     CGIFUNCTION *cgi;
00075 
00076     if ((cgi = NutHeapAlloc(sizeof(CGIFUNCTION))) == 0)
00077         return -1;
00078     cgi->cgi_next = cgiFunctionList;
00079     cgi->cgi_name = name;
00080     cgi->cgi_func = func;
00081     cgiFunctionList = cgi;
00082 
00083     return 0;
00084 }
00085 
00096 void NutCgiProcessRequest(FILE * stream, REQUEST * req)
00097 {
00098     CGIFUNCTION *cgi;
00099 
00100     if (req->req_method != METHOD_GET && req->req_method != METHOD_POST) {
00101         NutHttpSendError(stream, req, 501);
00102         return;
00103     }
00104     for (cgi = cgiFunctionList; cgi; cgi = cgi->cgi_next) {
00105         if (strcasecmp(cgi->cgi_name, req->req_url + 8) == 0)
00106             break;
00107     }
00108     if (cgi == 0)
00109         NutHttpSendError(stream, req, 404);
00110     else if ((*cgi->cgi_func) (stream, req))
00111         NutHttpSendError(stream, req, 500);
00112     return;
00113 }
00114 

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