1/* minixml.c : the minimum size a xml parser can be ! */ 2/* Project : miniupnp 3 * webpage: http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/ 4 * Author : Thomas Bernard 5 6Copyright (c) 2005-2007, Thomas BERNARD 7All rights reserved. 8 9Redistribution and use in source and binary forms, with or without 10modification, are permitted provided that the following conditions are met: 11 12 * Redistributions of source code must retain the above copyright notice, 13 this list of conditions and the following disclaimer. 14 * Redistributions in binary form must reproduce the above copyright notice, 15 this list of conditions and the following disclaimer in the documentation 16 and/or other materials provided with the distribution. 17 * The name of the author may not be used to endorse or promote products 18 derived from this software without specific prior written permission. 19 20THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30POSSIBILITY OF SUCH DAMAGE. 31*/ 32#include "minixml.h" 33#include "upnpreplyparse.h" 34 35/* parseatt : used to parse the argument list 36 * return 0 (false) in case of success and -1 (true) if the end 37 * of the xmlbuffer is reached. */ 38int parseatt(struct xmlparser * p) 39{ 40 const char * attname; 41 int attnamelen; 42 const char * attvalue; 43 int attvaluelen; 44 while(p->xml < p->xmlend) 45 { 46 if(*p->xml=='/' || *p->xml=='>') 47 return 0; 48 if( !IS_WHITE_SPACE(*p->xml) ) 49 { 50 char sep; 51 attname = p->xml; 52 attnamelen = 0; 53 while(*p->xml!='=' && !IS_WHITE_SPACE(*p->xml) ) 54 { 55 attnamelen++; p->xml++; 56 if(p->xml >= p->xmlend) 57 return -1; 58 } 59 while(*(p->xml++) != '=') 60 { 61 if(p->xml >= p->xmlend) 62 return -1; 63 } 64 while(IS_WHITE_SPACE(*p->xml)) 65 { 66 p->xml++; 67 if(p->xml >= p->xmlend) 68 return -1; 69 } 70 sep = *p->xml; 71 if(sep=='\'' || sep=='\"') 72 { 73 p->xml++; 74 if(p->xml >= p->xmlend) 75 return -1; 76 attvalue = p->xml; 77 attvaluelen = 0; 78 while(*p->xml != sep) 79 { 80 attvaluelen++; p->xml++; 81 if(p->xml >= p->xmlend) 82 return -1; 83 } 84 } 85 else 86 { 87 attvalue = p->xml; 88 attvaluelen = 0; 89 while( !IS_WHITE_SPACE(*p->xml) 90 && *p->xml != '>' && *p->xml != '/') 91 { 92 attvaluelen++; p->xml++; 93 if(p->xml >= p->xmlend) 94 return -1; 95 } 96 } 97 /*printf("%.*s='%.*s'\n", 98 attnamelen, attname, attvaluelen, attvalue);*/ 99 if(p->attfunc) 100 p->attfunc(p->data, attname, attnamelen, attvalue, attvaluelen); 101 } 102 p->xml++; 103 } 104 return -1; 105} 106 107/* parseelt parse the xml stream and 108 * call the callback functions when needed... */ 109void parseelt(struct xmlparser * p) 110{ 111 int i; 112 const char * elementname; 113 while(p->xml < (p->xmlend - 1)) 114 { 115 if((p->xml)[0]=='<' && (p->xml)[1]!='?') 116 { 117 i = 0; elementname = ++p->xml; 118 while( !IS_WHITE_SPACE(*p->xml) 119 && (*p->xml!='>') && (*p->xml!='/') 120 ) 121 { 122 i++; p->xml++; 123 if (p->xml >= p->xmlend) 124 return; 125 /* to ignore namespace : */ 126 if(*p->xml==':') 127 { 128 i = 0; 129 elementname = ++p->xml; 130 } 131 } 132 if(i>0) 133 { 134 if(p->starteltfunc) 135 p->starteltfunc(p->data, elementname, i); 136 if(parseatt(p)) 137 return; 138 if(*p->xml!='/') 139 { 140 const char * data; 141 i = 0; data = ++p->xml; 142 if (p->xml >= p->xmlend) 143 return; 144 while( IS_WHITE_SPACE(*p->xml) ) 145 { 146 p->xml++; 147 if (p->xml >= p->xmlend) 148 return; 149 } 150 while(*p->xml!='<') 151 { 152 i++; p->xml++; 153 if (p->xml >= p->xmlend) 154 return; 155 } 156 if (p->datafunc) 157 { 158 if (i > 0 || (p->flags & XML_STORE_EMPTY_FL)) 159 p->datafunc(p->data, data, i); 160 } 161 } 162 } 163 else if(*p->xml == '/') 164 { 165 i = 0; elementname = ++p->xml; 166 if (p->xml >= p->xmlend) 167 return; 168 while((*p->xml != '>')) 169 { 170 i++; p->xml++; 171 if (p->xml >= p->xmlend) 172 return; 173 } 174 if(p->endeltfunc) 175 p->endeltfunc(p->data, elementname, i); 176 p->xml++; 177 } 178 } 179 else 180 { 181 p->xml++; 182 } 183 } 184} 185 186/* the parser must be initialized before calling this function */ 187void parsexml(struct xmlparser * parser) 188{ 189 parser->xml = parser->xmlstart; 190 parser->xmlend = parser->xmlstart + parser->xmlsize; 191 parseelt(parser); 192} 193 194 195