Annotation of parser3/src/targets/isapi/parser3isapi.C, revision 1.96
1.29 paf 1: /** @file
2: Parser: IIS extension.
3:
1.93 paf 4: Copyright (c) 2000,2001-2005 ArtLebedev Group (http://www.artlebedev.com)
1.63 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.77 paf 6: */
1.29 paf 7:
1.96 ! paf 8: static const char * const IDENT_PARSER3ISAPI_C="$Date: 2005/12/08 10:34:47 $";
1.29 paf 9:
1.1 paf 10: #ifndef _MSC_VER
1.10 paf 11: # error compile ISAPI module with MSVC [no urge for now to make it autoconf-ed (PAF)]
1.1 paf 12: #endif
1.43 parser 13:
14: #include "pa_config_includes.h"
1.1 paf 15:
1.9 paf 16: #include "pa_sapi.h"
1.1 paf 17: #include "pa_globals.h"
18: #include "pa_request.h"
19: #include "pa_version.h"
1.24 paf 20: #include "pa_socks.h"
1.1 paf 21:
1.64 paf 22: #include <windows.h>
23: #include <process.h>
24:
25: #include <httpext.h>
1.51 parser 26:
1.92 paf 27: // defines
28:
29: #if _MSC_VER && !defined(_DEBUG)
30: # define PA_SUPPRESS_SYSTEM_EXCEPTION
31: #endif
32:
33:
1.1 paf 34: #define MAX_STATUS_LENGTH sizeof("xxxx LONGEST STATUS DESCRIPTION")
1.44 parser 35:
36: // consts
1.1 paf 37:
1.83 paf 38: const char* IIS51vars[]={
1.73 paf 39: "APPL_MD_PATH", "APPL_PHYSICAL_PATH",
40: "AUTH_PASSWORD", "AUTH_TYPE", "AUTH_USER",
41: "CERT_COOKIE", "CERT_FLAGS", "CERT_ISSUER", "CERT_KEYSIZE", "CERT_SECRETKEYSIZE",
42: "CERT_SERIALNUMBER", "CERT_SERVER_ISSUER", "CERT_SERVER_SUBJECT", "CERT_SUBJECT",
43: "CONTENT_LENGTH", "CONTENT_TYPE",
44: "LOGON_USER",
45: "HTTPS", "HTTPS_KEYSIZE", "HTTPS_SECRETKEYSIZE", "HTTPS_SERVER_ISSUER", "HTTPS_SERVER_SUBJECT",
46: "INSTANCE_ID", "INSTANCE_META_PATH",
47: "PATH_INFO", "PATH_TRANSLATED",
48: "QUERY_STRING",
49: "REMOTE_ADDR", "REMOTE_HOST", "REMOTE_USER", "REQUEST_METHOD",
50: "SCRIPT_NAME",
51: "SERVER_NAME", "SERVER_PORT", "SERVER_PORT_SECURE", "SERVER_PROTOCOL", "SERVER_SOFTWARE",
52: "URL",
53: };
54: const int IIS51var_count=sizeof(IIS51vars)/sizeof(*IIS51vars);
55:
1.65 paf 56: // globals
57:
58: char argv0[MAX_STRING]="";
59:
1.18 paf 60: // SAPI
61:
1.38 parser 62: #ifndef DOXYGEN
63: /*
1.18 paf 64: ISAPI SAPI functions receive this context information.
1.38 parser 65: see Pool::set_context
1.18 paf 66: */
1.83 paf 67: class SAPI_Info {
68: public:
1.3 paf 69: LPEXTENSION_CONTROL_BLOCK lpECB;
70: String *header;
71: DWORD http_response_code;
72: };
1.38 parser 73: #endif
1.3 paf 74:
1.26 paf 75: // goes to 'cs-uri-query' log file field. webmaster: switch it ON[default OFF].
1.83 paf 76: void SAPI::log(SAPI_Info& SAPI_info, const char* fmt, ...) {
1.26 paf 77: va_list args;
78: va_start(args,fmt);
79: char buf[MAX_STRING];
1.83 paf 80: const char* prefix="PARSER_ERROR:";
1.26 paf 81: strcpy(buf, prefix);
1.47 parser 82: char *start=buf+strlen(prefix);
1.51 parser 83: DWORD size=vsnprintf(start, MAX_STRING-strlen(prefix), fmt, args);
1.47 parser 84: remove_crlf(start, start+size);
85:
1.83 paf 86: SAPI_info.lpECB->ServerSupportFunction(SAPI_info.lpECB->ConnID,
1.26 paf 87: HSE_APPEND_LOG_PARAMETER, buf, &size, 0);
1.55 parser 88: }
89:
90: /// @todo event log
1.85 paf 91: static void abort(const char* fmt, va_list args) {
1.83 paf 92: if(FILE *log=fopen("c:\\parser3die.log", "at")) {
1.65 paf 93: vfprintf(log, fmt, args);
94: fclose(log);
95: }
1.81 paf 96: // exit & try to produce core dump
97: abort();
1.26 paf 98: }
1.83 paf 99: void SAPI::die(const char* fmt, ...) {
100: va_list args;
101: va_start(args, fmt);
1.85 paf 102: ::abort(fmt, args);
1.90 paf 103: // va_end(args);
1.83 paf 104: }
1.26 paf 105:
1.83 paf 106: void SAPI::abort(const char* fmt, ...) {
107: va_list args;
108: va_start(args, fmt);
1.85 paf 109: ::abort(fmt, args);
1.90 paf 110: // va_end(args);
1.83 paf 111: }
1.1 paf 112:
1.83 paf 113: char* SAPI::get_env(SAPI_Info& SAPI_info, const char* name) {
114: char *variable_buf=new(PointerFreeGC) char[MAX_STRING];
1.1 paf 115: DWORD variable_len = MAX_STRING-1;
116:
1.83 paf 117: if(SAPI_info.lpECB->GetServerVariable(SAPI_info.lpECB->ConnID, const_cast<char *>(name),
1.1 paf 118: variable_buf, &variable_len)) {
1.73 paf 119: if(*variable_buf) { // saw returning len=1 && *buf=0 :(
120: variable_buf[variable_len]=0;
121: return variable_buf;
122: }
1.7 paf 123: } else if (GetLastError()==ERROR_INSUFFICIENT_BUFFER) {
1.83 paf 124: variable_buf=new(PointerFreeGC) char[variable_len+1];
1.7 paf 125:
1.83 paf 126: if(SAPI_info.lpECB->GetServerVariable(SAPI_info.lpECB->ConnID, const_cast<char *>(name),
1.7 paf 127: variable_buf, &variable_len)) {
1.73 paf 128: if(*variable_buf) {
129: variable_buf[variable_len]=0;
130: return variable_buf;
131: }
1.7 paf 132: }
1.1 paf 133: }
1.7 paf 134:
1.1 paf 135: return 0;
136: }
137:
1.83 paf 138: static int grep_char(const char* s, char c) {
1.72 paf 139: int result=0;
140: if(s) {
141: while(s=strchr(s, c)) {
142: s++; // skip found c
143: result++;
144: }
145: }
146: return result;
147: }
1.83 paf 148: static const char* mk_env_pair(const char* key, const char* value) {
149: char *result=new(PointerFreeGC) char[strlen(key)+1/*=*/+strlen(value)+1/*0*/];
1.72 paf 150: strcpy(result, key); strcat(result, "="); strcat(result, value);
151: return result;
152: }
1.83 paf 153: const char* const *SAPI::environment(SAPI_Info& info) {
1.72 paf 154: // we know this buf is writable
1.83 paf 155: char* all_http_vars=SAPI::get_env(info, "ALL_HTTP");
1.72 paf 156: const int http_var_count=grep_char(all_http_vars, '\n')+1/*\n for theoretical(never saw) this \0*/;
1.90 paf 157:
1.92 paf 158: const char* *result=new(PointerFreeGC) const char*[IIS51var_count+http_var_count+1/*0*/];
1.83 paf 159: const char* *cur=result;
1.72 paf 160:
161: // IIS5.1 vars
162: for(int i=0; i<IIS51var_count; i++) {
1.83 paf 163: const char* key=IIS51vars[i];
164: if(const char* value=SAPI::get_env(info, key))
165: *cur++=mk_env_pair(key, value);
1.72 paf 166: }
167:
168: // HTTP_* vars
169: if(char *s=all_http_vars) {
170: while(char *key=lsplit(&s, '\n'))
171: if(char *value=lsplit(key, ':'))
1.83 paf 172: *cur++=mk_env_pair(key, value);
1.72 paf 173: }
174:
175: // mark EOE
176: *cur=0;
177:
178: return result;
179: }
180:
1.83 paf 181: size_t SAPI::read_post(SAPI_Info& SAPI_info, char *buf, size_t max_bytes) {
1.1 paf 182: DWORD read_from_buf=0;
183: DWORD read_from_input=0;
184: DWORD total_read=0;
185:
1.83 paf 186: read_from_buf=min(SAPI_info.lpECB->cbAvailable, max_bytes);
187: memcpy(buf, SAPI_info.lpECB->lpbData, read_from_buf);
1.1 paf 188: total_read+=read_from_buf;
189:
190: if(read_from_buf<max_bytes &&
1.83 paf 191: read_from_buf<SAPI_info.lpECB->cbTotalBytes) {
1.1 paf 192: DWORD cbRead=0, cbSize;
193:
1.3 paf 194: read_from_input=min(max_bytes-read_from_buf,
1.83 paf 195: SAPI_info.lpECB->cbTotalBytes-read_from_buf);
1.1 paf 196: while(cbRead < read_from_input) {
197: cbSize=read_from_input - cbRead;
1.83 paf 198: if(!SAPI_info.lpECB->ReadClient(SAPI_info.lpECB->ConnID,
1.3 paf 199: buf+read_from_buf+cbRead, &cbSize) ||
1.1 paf 200: cbSize==0)
201: break;
202: cbRead+=cbSize;
203: }
204: total_read+=cbRead;
205: }
206: return total_read;
207: }
208:
1.83 paf 209: void SAPI::add_header_attribute(SAPI_Info& SAPI_info,
210: const char* dont_store_key, const char* dont_store_value) {
211: if(strcasecmp(dont_store_key, "location")==0)
212: SAPI_info.http_response_code=302;
213:
214: if(strcasecmp(dont_store_key, "status")==0)
215: SAPI_info.http_response_code=atoi(dont_store_value);
216: else
217: (*SAPI_info.header) << pa_strdup(dont_store_key) << ": " << pa_strdup(dont_store_value) << "\r\n";
1.1 paf 218: }
219:
1.23 paf 220: /// @todo intelligent cache-control
1.83 paf 221: void SAPI::send_header(SAPI_Info& SAPI_info) {
1.64 paf 222: HSE_SEND_HEADER_EX_INFO header_info;
1.1 paf 223:
224: char status_buf[MAX_STATUS_LENGTH];
1.83 paf 225: switch(SAPI_info.http_response_code) {
1.1 paf 226: case 200:
227: header_info.pszStatus="200 OK";
228: break;
229: case 302:
230: header_info.pszStatus="302 Moved Temporarily";
231: break;
1.8 paf 232: case 401:// useless untill parser auth mech
1.1 paf 233: header_info.pszStatus="401 Authorization Required";
1.8 paf 234: break;
1.1 paf 235: default:
1.3 paf 236: snprintf(status_buf, MAX_STATUS_LENGTH,
1.83 paf 237: "%d Undescribed", SAPI_info.http_response_code);
1.1 paf 238: header_info.pszStatus=status_buf;
239: break;
240: }
241: header_info.cchStatus=strlen(header_info.pszStatus);
1.83 paf 242: *SAPI_info.header << "\r\n"; // ISAPI v<5 did quite well without it
243: header_info.pszHeader=SAPI_info.header->cstr();
244: header_info.cchHeader=SAPI_info.header->length();
1.5 paf 245: header_info.fKeepConn=true;
1.1 paf 246:
1.83 paf 247: SAPI_info.lpECB->dwHttpStatusCode=SAPI_info.http_response_code;
1.1 paf 248:
1.83 paf 249: SAPI_info.lpECB->ServerSupportFunction(SAPI_info.lpECB->ConnID,
1.3 paf 250: HSE_REQ_SEND_RESPONSE_HEADER_EX, &header_info, NULL, NULL);
1.1 paf 251: }
252:
1.91 paf 253: size_t SAPI::send_body(SAPI_Info& SAPI_info, const void *buf, size_t size) {
1.1 paf 254: DWORD num_bytes=size;
1.91 paf 255: if(!SAPI_info.lpECB->WriteClient(SAPI_info.lpECB->ConnID,
256: const_cast<void *>(buf), &num_bytes, HSE_IO_SYNC))
257: return 0;
258: return (size_t)num_bytes;
1.1 paf 259: }
1.16 paf 260:
1.1 paf 261:
1.15 paf 262: static bool parser_init() {
1.1 paf 263: static bool globals_inited=false;
264: if(globals_inited)
1.15 paf 265: return true;
1.1 paf 266: globals_inited=true;
267:
1.53 parser 268: try {
1.27 paf 269: // init socks
1.89 paf 270: pa_socks_init();
1.1 paf 271: // init global variables
1.83 paf 272: pa_globals_init();
1.65 paf 273:
1.15 paf 274: // successful finish
275: return true;
1.96 ! paf 276: } catch(.../*const Exception& e*/) { // global problem
1.85 paf 277: //const char* body=e.comment();
1.15 paf 278:
279: // unsuccessful finish
280: return false;
1.1 paf 281: }
282: }
283:
1.89 paf 284: static void parser_done() {
285: // finalize global variables
286: pa_globals_done();
287:
288: //
289: pa_socks_done();
290: }
291:
1.1 paf 292: /// ISAPI //
293: BOOL WINAPI GetExtensionVersion(HSE_VERSION_INFO *pVer) {
294: pVer->dwExtensionVersion = HSE_VERSION;
1.36 parser 295: strncpy(pVer->lpszExtensionDesc, "Parser "PARSER_VERSION, HSE_MAX_EXT_DLL_NAME_LEN-1);
296: pVer->lpszExtensionDesc[HSE_MAX_EXT_DLL_NAME_LEN-1]=0;
1.15 paf 297: return parser_init();
1.89 paf 298: }
299: // dwFlags & HSE_TERM_MUST_UNLOAD means we can't return false
300: BOOL WINAPI TerminateExtension(
301: DWORD /*dwFlags*/
302: )
303: {
304: parser_done();
305:
306: return TRUE;
1.1 paf 307: }
308:
1.6 paf 309: /**
310: ISAPI // main workhorse
311:
1.23 paf 312: @todo
1.10 paf 313: IIS: remove trailing default-document[index.html] from $request.uri.
314: to do that we need to consult metabase,
1.12 paf 315: wich is tested&works but seems slow runtime
316: and not could-be-quickly-implemented if prepared.
1.37 parser 317: @test
318: PARSER_VERSION from outside
1.6 paf 319: */
1.83 paf 320: void real_parser_handler(SAPI_Info& SAPI_info, bool header_only) {
1.88 paf 321: // collect garbage from prev request
322: #ifndef PA_DEBUG_DISABLE_GC
323: {
324: int saved=GC_dont_gc;
325: GC_dont_gc=0;
326: GC_gcollect();
327: GC_dont_gc=saved;
328: }
329: #endif
330:
1.83 paf 331: SAPI_info.header=new String;
332: LPEXTENSION_CONTROL_BLOCK lpECB=SAPI_info.lpECB;
1.53 parser 333:
334: // Request info
1.83 paf 335: Request_info request_info; memset(&request_info, 0, sizeof(request_info));
1.53 parser 336:
337: size_t path_translated_buf_size=strlen(lpECB->lpszPathTranslated)+1;
1.83 paf 338: char *filespec_to_process=pa_strdup(lpECB->lpszPathTranslated, path_translated_buf_size);
1.53 parser 339: #ifdef WIN32
340: back_slashes_to_slashes(filespec_to_process);
341: #endif
342:
1.83 paf 343: if(const char* path_info=SAPI::get_env(SAPI_info, "PATH_INFO")) {
1.53 parser 344: // IIS
345: size_t len=strlen(filespec_to_process)-strlen(path_info);
1.83 paf 346: char *buf=new(PointerFreeGC) char[len+1];
1.53 parser 347: strncpy(buf, filespec_to_process, len); buf[len]=0;
348: request_info.document_root=buf;
349: } else
1.67 paf 350: throw Exception("parser.runtime",
1.53 parser 351: 0,
352: "ISAPI: no PATH_INFO defined (in reinventing DOCUMENT_ROOT)");
353:
354: request_info.path_translated=filespec_to_process;
355: request_info.method=lpECB->lpszMethod;
356: request_info.query_string=lpECB->lpszQueryString;
357: if(lpECB->lpszQueryString && *lpECB->lpszQueryString) {
1.83 paf 358: char *reconstructed_uri=new(PointerFreeGC) char[
1.53 parser 359: strlen(lpECB->lpszPathInfo)+1/*'?'*/+
1.83 paf 360: strlen(lpECB->lpszQueryString)+1/*0*/];
1.53 parser 361: strcpy(reconstructed_uri, lpECB->lpszPathInfo);
362: strcat(reconstructed_uri, "?");
363: strcat(reconstructed_uri, lpECB->lpszQueryString);
364: request_info.uri=reconstructed_uri;
365: } else
366: request_info.uri=lpECB->lpszPathInfo;
367:
368: request_info.content_type=lpECB->lpszContentType;
369: request_info.content_length=lpECB->cbTotalBytes;
1.83 paf 370: request_info.cookie=SAPI::get_env(SAPI_info, "HTTP_COOKIE");
1.76 paf 371: request_info.mail_received=false;
1.53 parser 372:
373: // prepare to process request
1.83 paf 374: Request request(SAPI_info,
1.53 parser 375: request_info,
1.83 paf 376: String::Language(String::L_HTML|String::L_OPTIMIZE_BIT),
377: true /* status_allowed */);
1.53 parser 378:
1.65 paf 379: // beside by binary
1.75 paf 380: static char beside_binary_path[MAX_STRING];
381: strncpy(beside_binary_path, argv0, MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary
1.65 paf 382: if(!(
1.75 paf 383: rsplit(beside_binary_path, '/') ||
384: rsplit(beside_binary_path, '\\'))) { // strip filename
1.65 paf 385: // no path, just filename
1.75 paf 386: beside_binary_path[0]='.'; beside_binary_path[1]=0;
1.65 paf 387: }
1.74 paf 388: char config_filespec[MAX_STRING];
389: snprintf(config_filespec, MAX_STRING,
1.65 paf 390: "%s/%s",
1.75 paf 391: beside_binary_path, AUTO_FILE_NAME);
1.96 ! paf 392: bool fail_on_config_read_problem=entry_exists(config_filespec);
1.65 paf 393:
1.53 parser 394: // process the request
395: request.core(
1.79 paf 396: config_filespec, fail_on_config_read_problem, // /path/to/first/auto.p
1.53 parser 397: header_only);
398: }
399:
1.92 paf 400: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
401: static const Exception
402: call_real_parser_handler__do_PEH_return_it(
403: SAPI_Info& SAPI_info, bool header_only)
404: {
405: try {
406: real_parser_handler(SAPI_info, header_only);
407: } catch(const Exception& e) {
408: return e;
409: }
410:
411: return Exception();
412: }
413: static void call_real_parser_handler__supress_system_exception(
414: SAPI_Info& SAPI_info, bool header_only)
415: {
416: Exception parser_exception;
1.53 parser 417: LPEXCEPTION_POINTERS system_exception=0;
1.92 paf 418:
1.53 parser 419: __try {
1.92 paf 420: parser_exception=call_real_parser_handler__do_PEH_return_it(
421: SAPI_info, header_only);
1.53 parser 422: } __except (
423: (system_exception=GetExceptionInformation()),
1.92 paf 424: EXCEPTION_EXECUTE_HANDLER)
425: {
426:
1.53 parser 427: if(system_exception)
428: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.92 paf 429: throw Exception("system",
430: 0,
431: "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.53 parser 432: else
1.92 paf 433: throw Exception("system",
434: 0,
435: "<no exception record>");
436: else
437: throw Exception("system",
438: 0,
439: "<no exception information>");
1.53 parser 440: }
1.92 paf 441:
442: if(parser_exception)
443: throw Exception(parser_exception);
444: }
1.53 parser 445: #endif
446:
1.83 paf 447: DWORD WINAPI HttpExtensionProc(LPEXTENSION_CONTROL_BLOCK lpECB) {
448: //_asm int 3;
449: SAPI_Info SAPI_info={
1.15 paf 450: lpECB,
1.83 paf 451: 0, // filling later: so that if there would be error pool would have SAPI_info
1.80 paf 452: 200 // default http_response_code [lpECB->dwHttpStatusCode seems to be always 0, even on 404 redirect to /404.html]
1.15 paf 453: };
1.71 paf 454:
1.1 paf 455: bool header_only=strcasecmp(lpECB->lpszMethod, "HEAD")==0;
1.53 parser 456: try { // global try
1.92 paf 457: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
458: call_real_parser_handler__supress_system_exception(
459: #else
460: real_parser_handler(
461: #endif
462: SAPI_info, header_only);
1.2 paf 463: // successful finish
1.53 parser 464: } catch(const Exception& e) { // global problem
1.12 paf 465: // don't allocate anything on pool here:
466: // possible pool' exception not catch-ed now
1.31 paf 467: // and there could be out-of-memory exception
1.83 paf 468: const char* body=e.comment();
1.16 paf 469: // log it
1.83 paf 470: SAPI::log(SAPI_info, "exception in request exception handler: %s", body);
1.16 paf 471:
472: //
1.1 paf 473: int content_length=strlen(body);
474:
1.12 paf 475: // prepare header // not using SAPI func wich allocates on pool
476: char header_buf[MAX_STRING];
477: int header_len=snprintf(header_buf, MAX_STRING,
1.30 paf 478: "content-type: text/plain\r\n"
1.86 paf 479: "content-length: %u\r\n"
1.69 paf 480: // "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n"
1.30 paf 481: "\r\n",
1.12 paf 482: content_length);
483:
484: HSE_SEND_HEADER_EX_INFO header_info;
485: header_info.pszStatus="200 OK";
486: header_info.cchStatus=strlen(header_info.pszStatus);
487: header_info.pszHeader=header_buf;
488: header_info.cchHeader=header_len;
489: header_info.fKeepConn=true;
490:
1.1 paf 491: // send header
1.12 paf 492: lpECB->dwHttpStatusCode=200;
493: lpECB->ServerSupportFunction(lpECB->ConnID,
494: HSE_REQ_SEND_RESPONSE_HEADER_EX, &header_info, NULL, NULL);
1.1 paf 495:
496: // send body
497: if(!header_only)
1.83 paf 498: SAPI::send_body(SAPI_info, body, content_length);
1.1 paf 499:
500: // unsuccessful finish
501: }
1.65 paf 502: /*
1.83 paf 503: const char* body="test";
1.65 paf 504:
505: //
506: int content_length=strlen(body);
507:
508: // prepare header // not using SAPI func wich allocates on pool
509: char header_buf[MAX_STRING];
510: int header_len=snprintf(header_buf, MAX_STRING,
511: "content-type: text/plain\r\n"
1.86 paf 512: "content-length: %u\r\n"
1.65 paf 513: "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n"
514: "\r\n",
515: content_length);
516: HSE_SEND_HEADER_EX_INFO header_info;
517: header_info.pszStatus="200 OK";
518: header_info.cchStatus=strlen(header_info.pszStatus);
519: header_info.pszHeader=header_buf;
520: header_info.cchHeader=header_len;
521: header_info.fKeepConn=true;
522:
523: // send header
524: lpECB->dwHttpStatusCode=200;
525: lpECB->ServerSupportFunction(lpECB->ConnID,
526: HSE_REQ_SEND_RESPONSE_HEADER_EX, &header_info, NULL, NULL);
527:
528: // send body
529: DWORD num_bytes=content_length;
530: lpECB->WriteClient(lpECB->ConnID,
531: (void *)body, &num_bytes, HSE_IO_SYNC);
532: */
1.71 paf 533: return HSE_STATUS_SUCCESS_AND_KEEP_CONN;
1.1 paf 534: }
1.65 paf 535:
536: BOOL WINAPI DllMain(
537: HINSTANCE hinstDLL, // handle to the DLL module
1.85 paf 538: DWORD /*fdwReason*/, // reason for calling function
539: LPVOID /*lpvReserved*/ // reserved
1.65 paf 540: ) {
541:
542: GetModuleFileName(
543: hinstDLL, // handle to module
544: argv0, // file name of module
545: sizeof(argv0) // size of buffer
546: );
547:
548: return TRUE;
549: }
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