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311 lines
11 KiB
311 lines
11 KiB
/***************************************************************************/
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/* */
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/* Project: OpenSLP - OpenSource implementation of Service Location */
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/* Protocol */
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/* */
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/* File: slp_parse.c */
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/* */
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/* Abstract: Common string parsing functionality */
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/* */
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/*-------------------------------------------------------------------------*/
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/* */
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/* Please submit patches to http://www.openslp.org */
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/* */
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/*-------------------------------------------------------------------------*/
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/* */
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/* Copyright (C) 2000 Caldera Systems, Inc */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or without */
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/* modification, are permitted provided that the following conditions are */
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/* met: */
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/* */
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/* Redistributions of source code must retain the above copyright */
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/* notice, this list of conditions and the following disclaimer. */
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/* */
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/* Redistributions in binary form must reproduce the above copyright */
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/* notice, this list of conditions and the following disclaimer in */
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/* the documentation and/or other materials provided with the */
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/* distribution. */
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/* */
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/* Neither the name of Caldera Systems nor the names of its */
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/* contributors may be used to endorse or promote products derived */
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/* from this software without specific prior written permission. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
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/* `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
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/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
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/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CALDERA */
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/* SYSTEMS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
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/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
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/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
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/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
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/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/***************************************************************************/
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#include "slp_parse.h"
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#include "slp_xmalloc.h"
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#include <errno.h>
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/*=========================================================================*/
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int SLPParseSrvUrl(int srvurllen,
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const char* srvurl,
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SLPParsedSrvUrl** parsedurl)
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/*
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* Description:
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* Parses a service URL into its parts
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*
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* Parameters:
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* srvurllen (IN) size of srvurl in bytes
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* srvurl (IN) pointer to service URL to parse
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* parsedurl (OUT) pointer to SLPParsedSrvUrl pointer that will be
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* set to xmalloc()ed parsed url parts. Returned
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* pointer must be freed by caller with call to xfree()
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*
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* Returns: zero on success, errno on failure..
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*=========================================================================*/
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{
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char* empty; /* always points to an empty string */
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char* buf; /* points to location in the SLPSrvUrl buffer */
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char* slider1; /* points to parse locations in srvurl */
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char* slider2; /* points to parse locations srvurl */
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char* end; /* points at the end of srvurl */
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/* Allocate memory and set up sliders */
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*parsedurl = (SLPParsedSrvUrl*)xmalloc(srvurllen + sizeof(SLPParsedSrvUrl) + 5);
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/* +5 ensures space for 5 null terminations */
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if(*parsedurl == 0)
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{
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return ENOMEM;
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}
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memset(*parsedurl,0,srvurllen + sizeof(SLPParsedSrvUrl) + 5);
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buf = ((char*)*parsedurl) + sizeof(SLPParsedSrvUrl);
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slider1 = slider2 = (char*)srvurl;
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end = slider1 + srvurllen;
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/* Set empty */
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empty = buf;
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buf++;
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/* parse out the service type */
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slider2 = (char*)strstr(slider2,":/");
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if(slider2 == 0)
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{
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xfree(*parsedurl);
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*parsedurl = 0;
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return EINVAL;
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}
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memcpy(buf,slider1,slider2-slider1);
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(*parsedurl)->srvtype = buf;
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buf += (slider2 - slider1) + 1;
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/* parse out the host */
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slider2 = slider1 = slider2 + 3; /* + 3 skips the "://" */
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while(slider2 < end && *slider2 != '/' && *slider2 != ':') slider2++;
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if(slider2-slider1 < 1)
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{
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/* no host part (this is okay according to RFC2609) */
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(*parsedurl)->host = empty;
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}
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else
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{
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memcpy(buf,slider1,slider2-slider1);
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(*parsedurl)->host = buf;
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buf += (slider2 - slider1) + 1;
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}
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/* parse out the port */
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if(*slider2 == ':')
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{
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slider2 ++; /* + 1 skips the ":" */
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slider1 = slider2; /* set up slider1 at the start of the port str */
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while(*slider2 && (*slider2 != '/' && *slider2 != ';')) slider2++;
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if (slider2 - slider1 < 1)
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{
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/* FIXME: no port, default to 80? */
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(*parsedurl)->port = 80;
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}
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else
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{
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memcpy(buf,slider1,slider2-slider1);
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(*parsedurl)->port = atoi(buf);
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buf += (slider2-slider1) + 1;
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}
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}
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/* parse out the remainder of the url */
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if(slider2 < end)
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{
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slider1 = slider2;
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memcpy(buf,slider1,end-slider1);
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(*parsedurl)->remainder = buf;
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buf += (end - slider2) + 1;
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}
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else
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{
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/* no remainder portion */
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(*parsedurl)->remainder = empty;
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}
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/* set the net family to always be an empty string for IP */
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(*parsedurl)->family = empty;
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return 0;
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}
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/*===========================================================================
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* TESTING CODE enabled by removing #define comment and compiling with the
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* following command line:
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*
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* $ gcc -g -DSLP_PARSE_TEST -DDEBUG slp_parse.c slp_xmalloc.c slp_linkedlist.c
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*==========================================================================*/
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#ifdef SLP_PARSE_TEST
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#define TESTSRVTYPE1 "service:printer.x"
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#define TESTHOST1 "192.168.100.2"
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#define TESTPORT1 "4563"
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#define TESTREMAINDER1 "/hello/good/world"
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#define TESTURL1 TESTSRVTYPE1"://"TESTHOST1":"TESTPORT1 TESTREMAINDER1
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#define TESTURL2 TESTSRVTYPE1"://"TESTHOST1":"TESTPORT1
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#define TESTURL3 TESTSRVTYPE1"://"TESTHOST1
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#define TESTURL4 "service:badurl"
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int main(int argc, char* argv[])
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{
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SLPParsedSrvUrl* parsedurl;
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printf("Testing srvurl: %s\n",TESTURL1);
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if(SLPParseSrvUrl(strlen(TESTURL1),
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TESTURL1,
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&parsedurl) != 0)
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{
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printf("FAILURE: SLPParseSrvUrl returned error\n");
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return -1;
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}
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if(strcmp(parsedurl->srvtype,TESTSRVTYPE1))
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{
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printf("FAILURE: wrong srvtype\n");
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}
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else if(strcmp(parsedurl->host,TESTHOST1))
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{
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printf("FAILURE: wrong host\n");
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}
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else if(parsedurl->port != atoi(TESTPORT1))
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{
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printf("FAILURE: wrong port\n");
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}
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else if(strcmp(parsedurl->remainder,TESTREMAINDER1))
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{
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printf("FAILURE: wrong remainder\n");
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}
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else if(*(parsedurl->family))
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{
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printf("FAILURE: wrong family\n");
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}
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else
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{
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printf("Success!\n");
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}
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if(parsedurl) xfree(parsedurl);
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/* TESTURL2 */
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printf("Testing srvurl: %s\n",TESTURL2);
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if(SLPParseSrvUrl(strlen(TESTURL2),
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TESTURL2,
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&parsedurl) != 0)
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{
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printf("FAILURE: SLPParseSrvUrl returned error\n");
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return -1;
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}
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if(strcmp(parsedurl->srvtype,TESTSRVTYPE1))
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{
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printf("FAILURE: wrong srvtype\n");
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}
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else if(strcmp(parsedurl->host,TESTHOST1))
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{
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printf("FAILURE: wrong host\n");
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}
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else if(parsedurl->port != atoi(TESTPORT1))
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{
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printf("FAILURE: wrong port\n");
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}
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/*
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else if(strcmp(parsedurl->remainder,TESTREMAINDER1))
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{
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printf("FAILURE: wrong remainder\n");
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}
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*/
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else if(*(parsedurl->family))
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{
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printf("FAILURE: wrong family\n");
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}
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else
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{
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printf("Success!\n");
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}
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if(parsedurl) xfree(parsedurl);
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/* TESTURL3 */
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printf("Testing srvurl: %s\n",TESTURL3);
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if(SLPParseSrvUrl(strlen(TESTURL3),
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TESTURL3,
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&parsedurl) != 0)
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{
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printf("FAILURE: SLPParseSrvUrl returned error\n");
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return -1;
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}
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if(strcmp(parsedurl->srvtype,TESTSRVTYPE1))
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{
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printf("FAILURE: wrong srvtype\n");
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}
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else if(strcmp(parsedurl->host,TESTHOST1))
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{
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printf("FAILURE: wrong host\n");
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}
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/*
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else if(parsedurl->port != atoi(TESTPORT1))
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{
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printf("FAILURE: wrong port\n");
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}
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else if(strcmp(parsedurl->remainder,TESTREMAINDER1))
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{
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printf("FAILURE: wrong remainder\n");
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}
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*/
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else if(*(parsedurl->family))
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{
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printf("FAILURE: wrong family\n");
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}
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else
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{
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printf("Success!\n");
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}
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if(parsedurl) xfree(parsedurl);
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/* TESTURL4 */
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printf("Testing srvurl: %s\n",TESTURL4);
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if(SLPParseSrvUrl(strlen(TESTURL4),
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TESTURL4,
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&parsedurl) == 0)
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{
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printf("FAILURE: SLPParseSrvUrl should have returned an error\n");
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}
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else
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{
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printf("Success!\n");
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}
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if(parsedurl) xfree(parsedurl);
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return 0;
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}
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#endif
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