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197 lines
4.4 KiB
C
197 lines
4.4 KiB
C
/* $Id: upnpreplyparse.c,v 1.19 2015/07/15 10:29:11 nanard Exp $ */
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/* vim: tabstop=4 shiftwidth=4 noexpandtab
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* MiniUPnP project
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* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
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* (c) 2006-2017 Thomas Bernard
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* This software is subject to the conditions detailed
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* in the LICENCE file provided within the distribution */
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "upnpreplyparse.h"
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#include "minixml.h"
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static void
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NameValueParserStartElt(void * d, const char * name, int l)
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{
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struct NameValueParserData * data = (struct NameValueParserData *)d;
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data->topelt = 1;
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if(l>63)
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l = 63;
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memcpy(data->curelt, name, l);
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data->curelt[l] = '\0';
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data->cdata = NULL;
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data->cdatalen = 0;
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}
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static void
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NameValueParserEndElt(void * d, const char * name, int namelen)
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{
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struct NameValueParserData * data = (struct NameValueParserData *)d;
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struct NameValue * nv;
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(void)name;
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(void)namelen;
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if(!data->topelt)
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return;
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if(strcmp(data->curelt, "NewPortListing") != 0)
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{
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int l;
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/* standard case. Limited to n chars strings */
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l = data->cdatalen;
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nv = malloc(sizeof(struct NameValue));
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if(nv == NULL)
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{
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/* malloc error */
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#ifdef DEBUG
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fprintf(stderr, "%s: error allocating memory",
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"NameValueParserEndElt");
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#endif /* DEBUG */
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return;
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}
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if(l>=(int)sizeof(nv->value))
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l = sizeof(nv->value) - 1;
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strncpy(nv->name, data->curelt, 64);
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nv->name[63] = '\0';
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if(data->cdata != NULL)
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{
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memcpy(nv->value, data->cdata, l);
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nv->value[l] = '\0';
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}
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else
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{
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nv->value[0] = '\0';
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}
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nv->l_next = data->l_head; /* insert in list */
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data->l_head = nv;
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}
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data->cdata = NULL;
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data->cdatalen = 0;
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data->topelt = 0;
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}
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static void
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NameValueParserGetData(void * d, const char * datas, int l)
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{
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struct NameValueParserData * data = (struct NameValueParserData *)d;
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if(strcmp(data->curelt, "NewPortListing") == 0)
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{
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/* specific case for NewPortListing which is a XML Document */
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data->portListing = malloc(l + 1);
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if(!data->portListing)
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{
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/* malloc error */
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#ifdef DEBUG
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fprintf(stderr, "%s: error allocating memory",
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"NameValueParserGetData");
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#endif /* DEBUG */
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return;
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}
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memcpy(data->portListing, datas, l);
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data->portListing[l] = '\0';
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data->portListingLength = l;
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}
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else
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{
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/* standard case. */
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data->cdata = datas;
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data->cdatalen = l;
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}
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}
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void
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ParseNameValue(const char * buffer, int bufsize,
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struct NameValueParserData * data)
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{
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struct xmlparser parser;
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memset(data, 0, sizeof(struct NameValueParserData));
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/* init xmlparser object */
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parser.xmlstart = buffer;
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parser.xmlsize = bufsize;
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parser.data = data;
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parser.starteltfunc = NameValueParserStartElt;
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parser.endeltfunc = NameValueParserEndElt;
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parser.datafunc = NameValueParserGetData;
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parser.attfunc = 0;
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parsexml(&parser);
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}
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void
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ClearNameValueList(struct NameValueParserData * pdata)
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{
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struct NameValue * nv;
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if(pdata->portListing)
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{
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free(pdata->portListing);
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pdata->portListing = NULL;
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pdata->portListingLength = 0;
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}
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while((nv = pdata->l_head) != NULL)
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{
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pdata->l_head = nv->l_next;
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free(nv);
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}
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}
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char *
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GetValueFromNameValueList(struct NameValueParserData * pdata,
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const char * Name)
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{
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struct NameValue * nv;
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char * p = NULL;
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for(nv = pdata->l_head;
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(nv != NULL) && (p == NULL);
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nv = nv->l_next)
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{
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if(strcmp(nv->name, Name) == 0)
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p = nv->value;
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}
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return p;
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}
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#if 0
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/* useless now that minixml ignores namespaces by itself */
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char *
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GetValueFromNameValueListIgnoreNS(struct NameValueParserData * pdata,
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const char * Name)
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{
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struct NameValue * nv;
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char * p = NULL;
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char * pname;
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for(nv = pdata->head.lh_first;
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(nv != NULL) && (p == NULL);
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nv = nv->entries.le_next)
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{
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pname = strrchr(nv->name, ':');
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if(pname)
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pname++;
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else
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pname = nv->name;
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if(strcmp(pname, Name)==0)
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p = nv->value;
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}
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return p;
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}
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#endif
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/* debug all-in-one function
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* do parsing then display to stdout */
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#ifdef DEBUG
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void
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DisplayNameValueList(char * buffer, int bufsize)
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{
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struct NameValueParserData pdata;
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struct NameValue * nv;
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ParseNameValue(buffer, bufsize, &pdata);
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for(nv = pdata.l_head;
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nv != NULL;
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nv = nv->l_next)
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{
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printf("%s = %s\n", nv->name, nv->value);
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}
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ClearNameValueList(&pdata);
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}
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#endif /* DEBUG */
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