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<h1>device-xml.c</h1><a href="device-xml_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001
00010 <span class="comment">/* $Progeny$</span>
00011 <span class="comment"> *</span>
00012 <span class="comment"> * AUTHOR: John R. Daily <jdaily@progeny.com></span>
00013 <span class="comment"> *</span>
00014 <span class="comment"> * Copyright 2002 Progeny Linux Systems, Inc.</span>
00015 <span class="comment"> * Copyright 2002 Hewlett-Packard Company</span>
00016 <span class="comment"> *</span>
00017 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span>
00018 <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span>
00019 <span class="comment"> * to deal in the Software without restriction, including without limitation</span>
00020 <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span>
00021 <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span>
00022 <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span>
00023 <span class="comment"> *</span>
00024 <span class="comment"> * The above copyright notice and this permission notice shall be included in</span>
00025 <span class="comment"> * all copies or substantial portions of the Software.</span>
00026 <span class="comment"> *</span>
00027 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span>
00028 <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
00029 <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</span>
00030 <span class="comment"> * THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span>
00031 <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span>
00032 <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span>
00033 <span class="comment"> * DEALINGS IN THE SOFTWARE.</span>
00034 <span class="comment"> */</span>
00035
00036 <span class="comment">/*</span>
00037 <span class="comment"> * This is slightly different than busclass-xml.c and vendor-xml.c.</span>
00038 <span class="comment"> * With those, the data that interests us is actually in the</span>
00039 <span class="comment"> * XML files, so the structures built by those modules are the final</span>
00040 <span class="comment"> * structures.</span>
00041 <span class="comment"></span>
00042 <span class="comment"> * With the devices, the list we build here is only an intermediate</span>
00043 <span class="comment"> * place to store the discover_device structures. When we probe the</span>
00044 <span class="comment"> * bus, we will move the discover_device structures for which</span>
00045 <span class="comment"> * we have found corresponding hardware from this list to the final</span>
00046 <span class="comment"> * one. (That action happens in the modules for the individual buses,</span>
00047 <span class="comment"> * such as pci.c.)</span>
00048 <span class="comment"></span>
00049 <span class="comment"> * Whereas busclass-xml.c and vendor-xml.c create pci_busclasses and</span>
00050 <span class="comment"> * pci_vendors lists, respectively, this module creates</span>
00051 <span class="comment"> * pci_devices_xml. Objects are moved from this list to the</span>
00052 <span class="comment"> * pci_devices list in pci.c, and the rest are freed.</span>
00053 <span class="comment"> */</span>
00054
00055 <span class="preprocessor">#include "config.h"</span>
00056
00057 <span class="preprocessor">#include <sys/types.h></span>
00058
00059 <span class="preprocessor">#include <assert.h></span>
00060 <span class="preprocessor">#include <ctype.h></span>
00061 <span class="preprocessor">#include <limits.h></span>
00062 <span class="preprocessor">#include <stdbool.h></span>
00063 <span class="preprocessor">#include <string.h></span>
00064 <span class="preprocessor">#include <errno.h></span>
00065
00066 <span class="preprocessor">#include <expat.h></span>
00067
00068 <span class="preprocessor">#include <<a class="code" href="discover_8h.html">discover/discover.h</a>></span>
00069 <span class="preprocessor">#include <<a class="code" href="discover-xml_8h.html">discover/discover-xml.h</a>></span>
00070
00071 <span class="preprocessor">#include <discover/load-url.h></span>
00072 <span class="preprocessor">#include <discover/device.h></span>
00073 <span class="preprocessor">#include <discover/utils.h></span>
00074 <span class="preprocessor">#include <discover/stack.h></span>
00075
<a name="l00077"></a><a class="code" href="device-xml_8c.html#a0">00077</a> <span class="preprocessor">#define IDLEN 5</span>
00078 <span class="preprocessor"></span>
00079 <span class="keyword">static</span> <a class="code" href="group__types.html#ga3">discover_device_t</a> *devices_xml[<a class="code" href="group__types.html#ga14">BUS_COUNT</a>];
00080
<a name="l00082"></a><a class="code" href="device-xml_8c.html#a20">00082</a> <span class="keyword">enum</span> <a class="code" href="conf_8c.html#a33">state</a> { START, FINISH, DEVICE, DATA };
00083 <span class="keyword">struct </span>context {
00084 <span class="keyword">enum</span> <a class="code" href="conf_8c.html#a33">state</a> <a class="code" href="conf_8c.html#a33">state</a>;
00085
00086 <a class="code" href="group__types.html#ga5">discover_xml_busclass_t</a> *busclasses;
00087 <a class="code" href="group__types.html#ga6">discover_xml_vendor_t</a> *vendors;
00088
00089 <span class="comment">/* Device stuff */</span>
00090 <a class="code" href="group__types.html#ga3">discover_device_t</a> **dhead;
00091 <a class="code" href="group__types.html#ga3">discover_device_t</a> *dtail;
00092
00093 <span class="comment">/* data stuff */</span>
00094 discover_xml_stack *stack;
00095 <span class="comment">/*</span>
00096 <span class="comment"> discover_data_t *data_current;</span>
00097 <span class="comment"> discover_data_t *data_parent;</span>
00098 <span class="comment">*/</span>
00099 <span class="keywordtype">int</span> nesting;
00100 <span class="keywordtype">int</span> last_nesting;
00101
00102 <span class="keywordtype">int</span> unknown_level; <span class="comment">/* How deep are we into unknown XML tags? */</span>
00103 };
00104
00105 <span class="keyword">static</span> <span class="keywordtype">char</span> *known_device_elements[] = {
00106 <span class="stringliteral">"data"</span>,
00107 <span class="stringliteral">"device"</span>,
00108 <span class="stringliteral">"device_list"</span>,
00109 NULL
00110 };
00111
00112 <span class="keyword">static</span> <span class="keywordtype">void</span>
00113 get_data_failure_handler(<a class="code" href="structdiscover__error.html">discover_error_t</a> **status, <span class="keywordtype">char</span> *url)
00114 {
00115 <span class="keywordtype">char</span> *errmsg;
00116 <span class="keyword">static</span> <span class="keywordtype">int</span> maxurlsize = 1024; <span class="comment">/* If your URL is longer than this,</span>
00117 <span class="comment"> you've got problems */</span>
00118
00119 <span class="keywordflow">if</span>((*status)->code == <a class="code" href="group__types.html#gga15a16">DISCOVER_EIO</a>) {
00120 errmsg = _discover_xmalloc(maxurlsize + 1);
00121 snprintf(errmsg, maxurlsize, <span class="stringliteral">"Resource not found: %s"</span>, url);
00122 (*status)->create_message(status, errmsg);
00123 free(errmsg);
00124 } <span class="keywordflow">else</span> {
00125 <span class="keywordflow">if</span> (errno) {
00126 errmsg = _discover_xmalloc(maxurlsize + 1);
00127 snprintf(errmsg, maxurlsize, <span class="stringliteral">"Problem loading resource: %s: %s"</span>,
00128 strerror(errno), url);
00129 (*status)->create_message(status, errmsg);
00130 free(errmsg);
00131 } <span class="keywordflow">else</span> {
00132 (*status)->create_message(status,
00133 <span class="stringliteral">"Unknown failure from system-dependent libraries"</span>);
00134 }
00135 }
00136 }
00137
00138 <span class="keyword">static</span> <span class="keywordtype">bool</span>
00139 unknown_device_element(<span class="keyword">const</span> XML_Char * <span class="keyword">const</span> tag)
00140 {
00141 <span class="keywordtype">int</span> i;
00142 <span class="keywordflow">for</span> (i = 0; known_device_elements[i] != NULL; i++) {
00143 <span class="keywordflow">if</span> (strcmp(tag, known_device_elements[i]) == 0)
00144 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00145 }
00146 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00147 }
00148
00149 <span class="keyword">static</span> <span class="keywordtype">void</span>
00150 create_device(<span class="keyword">struct</span> context *context, <span class="keyword">const</span> XML_Char *attrs[])
00151 {
00152 <span class="keywordtype">int</span> i;
00153 <span class="keywordtype">char</span> *busclass, *model_id, *model_name, *vendor_id, *vendor_name;
00154 <a class="code" href="group__types.html#ga3">discover_device_t</a> *new_device;
00155
00156 assert(context != NULL);
00157 assert(attrs != NULL);
00158
00159 busclass = model_id = model_name = vendor_id = NULL;
00160 <span class="keywordflow">for</span> (i = 0; attrs[i]; i += 2) {
00161 <span class="keywordflow">if</span> (strcmp(attrs[i], <span class="stringliteral">"busclass"</span>) == 0) {
00162 busclass = (<span class="keywordtype">char</span> *)attrs[i + 1];
00163
00164 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(attrs[i], <span class="stringliteral">"model"</span>) == 0) {
00165 model_id = (<span class="keywordtype">char</span> *)attrs[i + 1];
00166
00167 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(attrs[i], <span class="stringliteral">"model_name"</span>) == 0) {
00168 model_name = (<span class="keywordtype">char</span> *)attrs[i + 1];
00169
00170 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(attrs[i], <span class="stringliteral">"vendor"</span>) == 0) {
00171 vendor_id = (<span class="keywordtype">char</span> *)attrs[i + 1];
00172 }
00173 }
00174
00175 assert(model_id != NULL);
00176 assert(model_name != NULL);
00177 assert(vendor_id != NULL);
00178
00179 vendor_name = <a class="code" href="group__vendor__xml.html#ga3">discover_xml_vendor_id2name</a>(context->vendors, vendor_id);
00180 assert(vendor_name != NULL);
00181
00182 context->stack = <a class="code" href="stack_8c.html#a0">discover_xml_stack_new</a>();
00183
00184 new_device = <a class="code" href="group__device.html#ga22">discover_device_new</a>();
00185 new_device->busclasses = context->busclasses;
00186 new_device->vendors = context->vendors;
00187 <span class="keywordflow">if</span> (busclass) {
00188 new_device->busclass = _discover_xstrdup(busclass);
00189 } <span class="keywordflow">else</span> {
00190 new_device->busclass = NULL;
00191 }
00192 new_device->model_id = _discover_xstrdup(model_id);
00193 new_device->model_name = _discover_xstrdup(model_name);
00194 new_device->vendor_id = _discover_xstrdup(vendor_id);
00195 new_device->vendor_name = _discover_xstrdup(vendor_name);
00196 new_device->data = NULL;
00197 new_device->next = NULL;
00198
00199 <span class="keywordflow">if</span> (*(context->dhead)) {
00200 context->dtail->next = new_device;
00201 context->dtail = new_device;
00202 } <span class="keywordflow">else</span> {
00203 *(context->dhead) = new_device;
00204 context->dtail = new_device;
00205 }
00206 }
00207
00208 <span class="keyword">static</span> <span class="keywordtype">void</span>
00209 create_data(<span class="keyword">struct</span> context *context, <span class="keyword">const</span> XML_Char *attrs[])
00210 {
00211 <a class="code" href="group__types.html#ga4">discover_data_t</a> *new_data, *current_data;
00212 discover_xml_stack *stack;
00213 <span class="keywordtype">int</span> i;
00214 <span class="keywordtype">char</span> *discover_class, *version;
00215
00216 assert(context != NULL);
00217 assert(attrs != NULL);
00218
00219 new_data = <a class="code" href="group__device.html#ga13">discover_data_new</a>();
00220 new_data->text = NULL;
00221 new_data->next = new_data->prev = new_data->child = NULL;
00222
00223
00224 discover_class = version = NULL;
00225 <span class="keywordflow">for</span> (i = 0; attrs[i]; i += 2) {
00226 <span class="keywordflow">if</span> (strcmp(attrs[i], <span class="stringliteral">"class"</span>) == 0) {
00227 discover_class = (<span class="keywordtype">char</span> *)attrs[i + 1];
00228 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (strcmp(attrs[i], <span class="stringliteral">"version"</span>) == 0) {
00229 version = (<span class="keywordtype">char</span> *)attrs[i + 1];
00230 }
00231 }
00232
00233 assert(discover_class != NULL);
00234
00235 new_data->discover_class = _discover_xstrdup(discover_class);
00236 <span class="keywordflow">if</span> (version) {
00237 new_data->version = _discover_xstrdup(version);
00238 }
00239
00240 stack = context->stack;
00241
00242 assert(stack != NULL);
00243
00244 current_data = <a class="code" href="stack_8c.html#a4">discover_xml_stack_get</a>(stack);
00245
00246 <span class="keywordflow">if</span>(current_data) { <span class="comment">/* The first time through this, we have no data. */</span>
00247 <span class="comment">/* First element of the list */</span>
00248 <span class="keywordflow">if</span>(stack->depth > context->nesting) {
00249 <a class="code" href="stack_8c.html#a3">discover_xml_stack_pop</a>(&stack);
00250 <span class="comment">//current_data = discover_xml_stack_pop(&stack);</span>
00251 new_data->prev = current_data;
00252 new_data->prev->next = new_data;
00253 <span class="keywordflow">if</span>(context->nesting) {
00254 new_data->parent =
00255 <a class="code" href="stack_8c.html#a5">discover_xml_stack_getbynum</a>(stack, context->nesting);
00256 }
00257 } <span class="keywordflow">else</span> {
00258 <span class="comment">/* Brand new child */</span>
00259 new_data->parent = current_data;
00260 new_data->parent->child = new_data;
00261 }
00262 }
00263
00264 <a class="code" href="stack_8c.html#a2">discover_xml_stack_push</a>(&stack, new_data);
00265 context->stack = stack;
00266 }
00267
00268 <span class="keyword">static</span> <span class="keywordtype">void</span>
00269 start_element(<span class="keywordtype">void</span> *ctx, <span class="keyword">const</span> XML_Char *name, <span class="keyword">const</span> XML_Char *attrs[])
00270 {
00271 <span class="keyword">struct </span>context *context = ctx;
00272
00273 assert(context != NULL);
00274 assert(name != NULL);
00275 assert(attrs != NULL);
00276
00277
00278 <span class="keywordflow">if</span> (unknown_device_element(name)) {
00279 context->unknown_level++;
00280 <span class="keywordflow">return</span>;
00281 }
00282
00283 <span class="keywordflow">if</span> (context->unknown_level > 0) {
00284 <span class="keywordflow">return</span>;
00285 }
00286
00287 <span class="keywordflow">switch</span> (context->state) {
00288 <span class="keywordflow">case</span> FINISH:
00289 <span class="keywordflow">return</span>;
00290
00291 <span class="keywordflow">case</span> START:
00292 <span class="keywordflow">if</span> (strcmp(name, <span class="stringliteral">"device"</span>) == 0) {
00293 context->state = DEVICE;
00294 create_device(context, attrs);
00295 }
00296 <span class="keywordflow">break</span>;
00297
00298 <span class="keywordflow">case</span> DEVICE:
00299 <span class="keywordflow">if</span> (strcmp(name, <span class="stringliteral">"data"</span>) == 0) {
00300 context->nesting = context->last_nesting = 0;
00301 context->state = DATA;
00302 }
00303 <span class="comment">/* Falls through */</span>
00304
00305 <span class="keywordflow">case</span> DATA:
00306 <span class="keywordflow">if</span> (strcmp(name, <span class="stringliteral">"data"</span>) == 0) {
00307 create_data(context, attrs);
00308 context->last_nesting = context->nesting;
00309 context->nesting++;
00310 }
00311 <span class="keywordflow">break</span>;
00312 }
00313 }
00314
00315 <span class="keyword">static</span> <span class="keywordtype">void</span>
00316 end_element(<span class="keywordtype">void</span> *ctx, <span class="keyword">const</span> XML_Char *name)
00317 {
00318 <span class="keyword">struct </span>context *context = ctx;
00319 <a class="code" href="group__types.html#ga3">discover_device_t</a> *device;
00320 <a class="code" href="group__types.html#ga4">discover_data_t</a> *current_data;
00321 discover_xml_stack *stack;
00322
00323
00324 assert(context != NULL);
00325 assert(name != NULL);
00326
00327
00328 <span class="keywordflow">if</span> (unknown_device_element(name)) {
00329 context->unknown_level--;
00330 <span class="keywordflow">return</span>;
00331 }
00332
00333 <span class="keywordflow">if</span> (context->unknown_level > 0) {
00334 <span class="keywordflow">return</span>;
00335 }
00336
00337 <span class="keywordflow">switch</span> (context->state) {
00338 <span class="keywordflow">case</span> FINISH:
00339 <span class="keywordflow">case</span> START:
00340 <span class="keywordflow">break</span>;
00341
00342 <span class="keywordflow">case</span> DEVICE:
00343 context->state = START;
00344 device = context->dtail;
00345 stack = context->stack;
00346 current_data = <a class="code" href="stack_8c.html#a4">discover_xml_stack_get</a>(stack);
00347 device->data = <a class="code" href="group__device.html#ga12">discover_data_get_first</a>(current_data);
00348
00349 <span class="keywordflow">while</span> (<a class="code" href="stack_8c.html#a3">discover_xml_stack_pop</a>(&(context->stack))) ;
00350 <a class="code" href="stack_8c.html#a1">discover_xml_stack_destroy</a>(context->stack);
00351 context->stack = NULL;
00352
00353 <span class="keywordflow">break</span>;
00354
00355 <span class="keywordflow">case</span> DATA:
00356 context->nesting--;
00357 stack = context->stack;
00358 <span class="keywordflow">if</span>((context->nesting + 2) <= stack->depth) {
00359 <span class="keywordflow">while</span>((context->nesting + 1 < stack->depth) &&
00360 stack->depth > 1) {
00361 <a class="code" href="stack_8c.html#a3">discover_xml_stack_pop</a>(&stack);
00362 }
00363 context->stack = stack;
00364 }
00365
00366 <span class="keywordflow">if</span> (context->nesting == 0) {
00367 context->state = DEVICE;
00368 }
00369 }
00370 }
00371
00372 <span class="keyword">static</span> <span class="keywordtype">void</span>
00373 cdata(<span class="keywordtype">void</span> *ctx, <span class="keyword">const</span> XML_Char *data, <span class="keywordtype">int</span> len)
00374 {
00375 <span class="keyword">struct </span>context *context = ctx;
00376 size_t old_len;
00377 <a class="code" href="group__types.html#ga4">discover_data_t</a> *current_data;
00378
00379 assert(context != NULL);
00380 assert(data != NULL);
00381
00382 <span class="keywordflow">if</span> (context->state == DATA
00383 && context->nesting > context->last_nesting) {
00384 assert(context->stack != NULL);
00385 current_data = context->stack->data;
00386 assert(current_data != NULL);
00387
00388 <span class="keywordflow">if</span> (!current_data->text) {
00389 old_len = 0;
00390 current_data->text = _discover_xmalloc(1);
00391 current_data->text[0] = <span class="charliteral">'\0'</span>;
00392 } <span class="keywordflow">else</span> {
00393 old_len = strlen(current_data->text);
00394 }
00395 current_data->text
00396 = _discover_xrealloc(current_data->text,
00397 old_len + len + 1);
00398 strncat(current_data->text,
00399 (<span class="keyword">const</span> <span class="keywordtype">char</span> *)data,
00400 (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)len);
00401 }
00402 }
00403
00418 <span class="comment">/* Sshh! Don't tell, but this doesn't actually do any merging at all.</span>
00419 <span class="comment"> * Instead, it simply inserts newer entries at the front of the list,</span>
00420 <span class="comment"> * meaning that device info found later supersedes info found earlier.</span>
00421 <span class="comment"> * This gives the illusion of merging, but potentially wastes memory</span>
00422 <span class="comment"> * with duplicates.</span>
00423 <span class="comment"> */</span>
00424 <span class="keywordtype">void</span>
<a name="l00425"></a><a class="code" href="group__device__xml.html#ga0">00425</a> <a class="code" href="group__device__xml.html#ga0">discover_xml_merge_device_url</a>(<a class="code" href="group__types.html#ga3">discover_device_t</a> **dlist, <span class="keywordtype">char</span> *url,
00426 <a class="code" href="group__types.html#ga5">discover_xml_busclass_t</a> *busclasses,
00427 <a class="code" href="group__types.html#ga6">discover_xml_vendor_t</a> *vendors,
00428 <a class="code" href="structdiscover__error.html">discover_error_t</a> *status)
00429 {
00430 XML_Parser parser;
00431 <span class="keyword">struct </span>context context;
00432
00433 assert(url != NULL);
00434 assert(busclasses != NULL);
00435 assert(vendors != NULL);
00436 assert(status != NULL);
00437
00438 context.state = START;
00439 context.dhead = dlist;
00440 <span class="keywordflow">if</span> (*(context.dhead)) {
00441 <a class="code" href="group__types.html#ga3">discover_device_t</a> *next = *(context.dhead);
00442 <span class="keywordflow">while</span>(next->next != NULL) {
00443 next = next->next;
00444 }
00445 context.dtail = next;
00446 } <span class="keywordflow">else</span> {
00447 context.dtail = NULL;
00448 }
00449
00450 context.busclasses = busclasses;
00451 context.vendors = vendors;
00452 context.unknown_level = 0;
00453 context.stack = NULL;
00454
00455 parser = XML_ParserCreate(NULL);
00456 XML_SetElementHandler(parser, start_element, end_element);
00457 XML_SetCharacterDataHandler(parser, cdata);
00458 XML_SetUserData(parser, &context);
00459
00460 <span class="keywordflow">if</span> (!_discover_load_url(url, parser)) {
00461 XML_ParserFree(parser);
00462 status-><a class="code" href="structdiscover__error.html#o0">code</a> = <a class="code" href="group__types.html#gga15a16">DISCOVER_EIO</a>;
00463 <span class="keywordflow">return</span>;
00464 }
00465
00466 <span class="keywordflow">if</span> (!XML_Parse(parser, <span class="stringliteral">""</span>, 0, 1)) {
00467 XML_ParserFree(parser);
00468 status-><a class="code" href="structdiscover__error.html#o0">code</a> = <a class="code" href="group__types.html#gga15a17">DISCOVER_EXML</a>;
00469 <span class="keywordflow">return</span>;
00470 }
00471
00472 XML_ParserFree(parser);
00473
00474 <span class="keywordflow">return</span>;
00475 }
00476
00483 <a class="code" href="group__types.html#ga3">discover_device_t</a> *
<a name="l00484"></a><a class="code" href="group__device__xml.html#ga1">00484</a> <a class="code" href="group__device__xml.html#ga1">discover_xml_get_devices</a>(<a class="code" href="group__types.html#ga16">discover_bus_t</a> bus, <a class="code" href="structdiscover__error.html">discover_error_t</a> *status)
00485 {
00486 <a class="code" href="group__types.html#ga7">discover_xml_url_t</a> *urls, *i;
00487 <span class="keywordtype">char</span> *url;
00488 <a class="code" href="group__types.html#ga5">discover_xml_busclass_t</a> *busclasses;
00489 <a class="code" href="group__types.html#ga6">discover_xml_vendor_t</a> *vendors;
00490
00491 assert(status != NULL);
00492
00493 status-><a class="code" href="structdiscover__error.html#o0">code</a> = 0;
00494
00495 <span class="keywordflow">if</span> (!devices_xml[bus]) {
00496 urls = <a class="code" href="group__url__xml.html#ga2">discover_xml_get_data_urls</a>(bus, DEVICE, status);
00497 <span class="keywordflow">if</span> (status-><a class="code" href="structdiscover__error.html#o0">code</a> != 0) {
00498 <span class="keywordflow">return</span> NULL;
00499 }
00500
00501 busclasses = <a class="code" href="group__busclass__xml.html#ga1">discover_xml_get_busclasses</a>(bus, status);
00502 <span class="keywordflow">if</span> (status-><a class="code" href="structdiscover__error.html#o0">code</a> != 0) {
00503 <span class="keywordflow">return</span> NULL;
00504 }
00505
00506 vendors = <a class="code" href="group__vendor__xml.html#ga1">discover_xml_get_vendors</a>(bus, status);
00507 <span class="keywordflow">if</span> (status-><a class="code" href="structdiscover__error.html#o0">code</a> != 0) {
00508 <span class="keywordflow">return</span> NULL;
00509 }
00510
00511 <span class="keywordflow">for</span> (i = urls;
00512 i;
00513 i = <a class="code" href="group__url__xml.html#ga10">discover_xml_url_get_next</a>(i)) {
00514 url = <a class="code" href="group__url__xml.html#ga6">discover_xml_url_get_url</a>(i);
00515 <a class="code" href="group__device__xml.html#ga0">discover_xml_merge_device_url</a>(&(devices_xml[bus]), url,
00516 busclasses, vendors, status);
00517 <span class="keywordflow">if</span> (status-><a class="code" href="structdiscover__error.html#o0">code</a> != 0) {
00518 get_data_failure_handler(&status, url);
00519 }
00520 }
00521 }
00522
00523
00524 <span class="keywordflow">return</span> devices_xml[bus];
00525 }
00526
00530 <span class="keywordtype">void</span>
<a name="l00531"></a><a class="code" href="group__device__xml.html#ga2">00531</a> <a class="code" href="group__device__xml.html#ga2">discover_xml_free_devices</a>(<span class="keywordtype">void</span>)
00532 {
00533 <span class="keywordtype">int</span> i;
00534 <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="group__types.html#ga14">BUS_COUNT</a>; i++) {
00535 <a class="code" href="group__device.html#ga23">discover_device_free</a>(devices_xml[i], 1);
00536 devices_xml[i] = NULL;
00537 }
00538 }
00539
00549 <a class="code" href="group__types.html#ga3">discover_device_t</a> *
<a name="l00550"></a><a class="code" href="group__device__xml.html#ga3">00550</a> <a class="code" href="group__device__xml.html#ga3">discover_xml_find_device</a>(<a class="code" href="group__types.html#ga3">discover_device_t</a> *xml_devices,
00551 <span class="keywordtype">char</span> *target_vendor, <span class="keywordtype">char</span> *target_model,
00552 <a class="code" href="structdiscover__error.html">discover_error_t</a> *status)
00553 {
00554 <a class="code" href="group__types.html#ga3">discover_device_t</a> *device;
00555
00556 assert(target_vendor || target_model);
00557
00558 <span class="keywordflow">for</span> (device = xml_devices;
00559 device;
00560 device = device->next) {
00561 <span class="keywordflow">if</span> (target_vendor && target_model) {
00562 <span class="keywordflow">if</span> (strcmp(device->model_id, target_model) == 0
00563 && strcmp(device->vendor_id, target_vendor) == 0) {
00564 <span class="keywordflow">break</span>;
00565 }
00566 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (target_vendor) {
00567 <span class="keywordflow">if</span> (strcmp(device->vendor_id, target_vendor) == 0) {
00568 <span class="keywordflow">break</span>;
00569 }
00570 } <span class="keywordflow">else</span> {
00571 <span class="comment">/* We only have target_model. */</span>
00572 <span class="keywordflow">if</span> (strcmp(device->model_id, target_model) == 0) {
00573 <span class="keywordflow">break</span>;
00574 }
00575 }
00576 }
00577
00578 <span class="keywordflow">return</span> device;
00579 }
00580
00593 <a class="code" href="group__types.html#ga3">discover_device_t</a> *
<a name="l00594"></a><a class="code" href="group__device__xml.html#ga4">00594</a> <a class="code" href="group__device__xml.html#ga4">discover_xml_find_next_device</a>(<a class="code" href="group__types.html#ga3">discover_device_t</a> *xml_devices,
00595 <span class="keywordtype">char</span> *target_vendor, <span class="keywordtype">char</span> *target_model,
00596 <a class="code" href="structdiscover__error.html">discover_error_t</a> *status)
00597 {
00598 <span class="keywordflow">return</span> <a class="code" href="group__device__xml.html#ga3">discover_xml_find_device</a>(xml_devices->next,
00599 target_vendor, target_model,
00600 status);
00601 }
00602
00603
00613 <a class="code" href="group__types.html#ga3">discover_device_t</a> *
<a name="l00614"></a><a class="code" href="group__device__xml.html#ga5">00614</a> <a class="code" href="group__device__xml.html#ga5">discover_xml_get_matching_devices</a>(<a class="code" href="group__types.html#ga3">discover_device_t</a> *xml_devices,
00615 <span class="keywordtype">char</span> *target_vendor, <span class="keywordtype">char</span> *target_model,
00616 <a class="code" href="structdiscover__error.html">discover_error_t</a> *status)
00617 {
00618 <a class="code" href="group__types.html#ga3">discover_device_t</a> *device, *last, *copy;
00619 <a class="code" href="group__types.html#ga3">discover_device_t</a> *head_device = NULL;
00620
00621 device = <a class="code" href="group__device__xml.html#ga3">discover_xml_find_device</a>(xml_devices, target_vendor,
00622 target_model, status);
00623 last = NULL;
00624
00625 <span class="keywordflow">while</span>(device) {
00626 copy = <a class="code" href="group__device.html#ga22">discover_device_new</a>();
00627 <a class="code" href="group__device.html#ga5">discover_device_copy</a>(device, copy);
00628 copy->next = NULL;
00629 copy->extra = NULL;
00630
00631 <span class="keywordflow">if</span> (last) {
00632 last->extra = copy;
00633 } <span class="keywordflow">else</span> {
00634 head_device = copy;
00635 }
00636
00637 last = copy;
00638
00639 device = <a class="code" href="group__device__xml.html#ga4">discover_xml_find_next_device</a>(device, target_vendor,
00640 target_model, status);
00641 }
00642
00643 <span class="keywordflow">return</span> head_device;
00644 }
00645
00648 <span class="comment">/*</span>
00649 <span class="comment"> * Local variables:</span>
00650 <span class="comment"> * c-file-style: "progeny"</span>
00651 <span class="comment"> * indent-tabs-mode: nil</span>
00652 <span class="comment"> * End:</span>
00653 <span class="comment"> */</span>
00654 <span class="comment">/* vim: set cin fo=tcroq sw=4 et sts=4 tw=75: */</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Jul 28 03:38:00 2005 for discover by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address>
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