Annotation of parser3/src/main/pa_common.C, revision 1.143.2.21.2.25
1.15 paf 1: /** @file
1.16 paf 2: Parser: commonly functions.
3:
1.143.2.10 paf 4: Copyright(c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.101 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.111 paf 6: */
1.16 paf 7:
1.143.2.21.2. 5(paf 8:3): static const char* IDENT_COMMON_C="$Date: 2003/04/08 14:46:27 $";
1.1 paf 9:
10: #include "pa_common.h"
1.4 paf 11: #include "pa_exception.h"
1.126 paf 12: #include "pa_hash.h"
1.143.2.21.2. (paf 13:): #include "pa_globals.h"
5(paf 14:3): #include "pa_request_charsets.h"
15:3): #include "pa_charsets.h"
(paf 16:):
4(paf 17:3): #define PA_HTTP
(paf 18:):
19:): #ifdef PA_HTTP
1.143.2.3 paf 20: #include "pa_vstring.h"
1.143.2.4 paf 21: #include "pa_vint.h"
1.1 paf 22:
1.143.2.12 paf 23: #ifdef CYGWIN
24: #define _GNU_H_WINDOWS32_SOCKETS
25: // for PASCAL
26: #include <windows.h>
27: // SOCKET
28: typedef u_int SOCKET;
29: int PASCAL closesocket(SOCKET);
1.126 paf 30: #else
1.143.2.12 paf 31: # if defined(WIN32)
32: # include <windows.h>
33: # else
34: # define closesocket close
35: # endif
1.98 paf 36: #endif
37:
1.143.2.21.2. (paf 38:): #else
39:):
40:): # if defined(WIN32)
41:): # include <windows.h>
42:): # endif
43:):
44:): #endif
45:):
1.93 paf 46: // some maybe-undefined constants
47:
1.82 paf 48: #ifndef _O_TEXT
49: # define _O_TEXT 0
50: #endif
51: #ifndef _O_BINARY
52: # define _O_BINARY 0
1.47 paf 53: #endif
1.80 paf 54:
1.138 paf 55: #ifdef HAVE_FTRUNCATE
56: # define PA_O_TRUNC 0
57: #else
58: # ifdef _O_TRUNC
59: # define PA_O_TRUNC _O_TRUNC
60: # else
61: # error you must have either ftruncate function or _O_TRUNC bit declared
62: # endif
63: #endif
64:
1.93 paf 65: // locking constants
1.143.2.21.2. 9(paf 66:3): //#define PA_DEBUG_NO_LOCKING
67:3):
68:3): #ifdef PA_DEBUG_NO_LOCKING
69:3):
1.99 paf 70: #ifdef HAVE_FLOCK
71:
72: static int lock_shared_blocking(int fd) { return flock(fd, LOCK_SH); }
73: static int lock_exclusive_blocking(int fd) { return flock(fd, LOCK_EX); }
74: static int lock_exclusive_nonblocking(int fd) { return flock(fd, LOCK_EX || LOCK_NB); }
75: static int unlock(int fd) { return flock(fd, LOCK_UN); }
76:
1.98 paf 77: #else
1.99 paf 78: #ifdef HAVE__LOCKING
1.98 paf 79:
1.126 paf 80: #define FLOCK(operation) lseek(fd, 0, SEEK_SET); return _locking(fd, operation, 1)
1.99 paf 81: static int lock_shared_blocking(int fd) { FLOCK(_LK_LOCK); }
82: static int lock_exclusive_blocking(int fd) { FLOCK(_LK_LOCK); }
83: static int lock_exclusive_nonblocking(int fd) { FLOCK(_LK_NBLCK); }
84: static int unlock(int fd) { FLOCK(_LK_UNLCK); }
1.93 paf 85:
1.99 paf 86: #else
87: #ifdef HAVE_FCNTL
1.93 paf 88:
1.126 paf 89: #define FLOCK(cmd, arg) struct flock ls={arg, SEEK_SET}; return fcntl(fd, cmd, &ls)
1.99 paf 90: static int lock_shared_blocking(int fd) { FLOCK(F_SETLKW, F_RDLCK); }
91: static int lock_exclusive_blocking(int fd) { FLOCK(F_SETLKW, F_WRLCK); }
92: static int lock_exclusive_nonblocking(int fd) { FLOCK(F_SETLK, F_RDLCK); }
93: static int unlock(int fd) { FLOCK(F_SETLK, F_UNLCK); }
1.93 paf 94:
95: #else
96: #ifdef HAVE_LOCKF
1.99 paf 97:
1.126 paf 98: #define FLOCK(fd, operation) lseek(fd, 0, SEEK_SET); return lockf(fd, operation, 1)
1.99 paf 99: static int lock_shared_blocking(int fd) { FLOCK(F_LOCK); } // on intel solaris man doesn't have doc on shared blocking
100: static int lock_exclusive_blocking(int fd) { FLOCK(F_LOCK); }
101: static int lock_exclusive_nonblocking(int fd) { FLOCK(F_TLOCK); }
102: static int unlock(int fd) { FLOCK(F_TLOCK); }
103:
1.93 paf 104: #else
1.99 paf 105:
106: #error unable to find file locking func
107:
108: #endif
1.93 paf 109: #endif
110: #endif
111: #endif
112:
1.143.2.21.2. 6(paf 113:3): #else
114:3): static int lock_shared_blocking(int fd) { return 0; }
115:3): static int lock_exclusive_blocking(int fd) { return 0; }
116:3): static int lock_exclusive_nonblocking(int fd) { return 0; }
117:3): static int unlock(int fd) { return 0; }
118:3):
119:3): #endif
120:3):
1.143.2.16 paf 121: // defines for globals
122:
123: #define FILE_STATUS_NAME "status"
124:
125: // globals
126:
1.143.2.21.2. (paf 127:): const String file_status_name(FILE_STATUS_NAME);
1.143.2.16 paf 128:
1.143.2.14 paf 129: // defines for statics
130:
131: #define HTTP_METHOD_NAME "method"
132: #define HTTP_TIMEOUT_NAME "timeout"
133: #define HTTP_HEADERS_NAME "headers"
134: #define HTTP_ANY_STATUS_NAME "any-status"
1.143.2.21.2. 5(paf 135:3): #define HTTP_CHARSET_NAME "charset"
1.143.2.14 paf 136:
137: // statics
138:
1.143.2.21.2. (paf 139:): static const String http_method_name(HTTP_METHOD_NAME);
140:): static const String http_timeout_name(HTTP_TIMEOUT_NAME);
141:): static const String http_headers_name(HTTP_HEADERS_NAME);
142:): static const String http_any_status_name(HTTP_ANY_STATUS_NAME);
5(paf 143:3): static const String http_charset_name(HTTP_CHARSET_NAME);
1.143.2.14 paf 144:
145: // defines
146:
1.127 paf 147: #define DEFAULT_USER_AGENT "parser3"
148:
1.143.2.14 paf 149: // functions
1.127 paf 150:
1.143.2.21.2. 0(paf 151:3): void fix_line_breaks(char *str, size_t& length) {
1.87 paf 152: //_asm int 3;
1.143.2.21.2. 0(paf 153:3): const char* const eob=str+length;
154:3): char* dest=str;
1.72 parser 155: // fix DOS: \r\n -> \n
156: // fix Macintosh: \r -> \n
1.143.2.21.2. 0(paf 157:3): char* bol=str;
1.137 paf 158: while(char* eol=(char*)memchr(bol, '\r', eob -bol)) {
1.72 parser 159: size_t len=eol-bol;
160: if(dest!=bol)
1.126 paf 161: memcpy(dest, bol, len);
1.72 parser 162: dest+=len;
1.126 paf 163: *dest++='\n';
1.72 parser 164:
1.126 paf 165: if(&eol[1]<eob && eol[1]=='\n') { // \r, \n = DOS
1.72 parser 166: bol=eol+2;
1.143.2.21.2. 0(paf 167:3): length--;
1.126 paf 168: } else // \r, not \n = Macintosh
1.72 parser 169: bol=eol+1;
170: }
171: // last piece without \r, including terminating 0
172: if(dest!=bol)
1.126 paf 173: memcpy(dest, bol, eob-bol);
1.72 parser 174: }
1.18 paf 175:
1.143.2.21.2. 5(paf 176:3): char* file_read_text(Request_charsets& charsets,
177:3): const String& file_spec,
178:3): bool fail_on_read_problem,
179:3): HashStringValue* params/*, HashStringValue* * out_fields*/) {
1.143.2.18 paf 180: File_read_result file=
1.143.2.21.2. 5(paf 181:3): file_read(charsets, file_spec, true, params, fail_on_read_problem);
(paf 182:): return file.success?file.str:0;
1.126 paf 183: }
184:
1.143.2.21.2. (paf 185:): #ifdef PA_HTTP
1.126 paf 186: //http request stuff
187:
188: static bool set_addr(struct sockaddr_in *addr, const char* host, const short port){
189: memset(addr, 0, sizeof(*addr));
190: addr->sin_family=AF_INET;
191: addr->sin_port=htons(port);
192: if(host) {
193: if(struct hostent *hostIP=gethostbyname(host))
194: memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
195: else
196: return false;
197: } else
198: addr->sin_addr.s_addr=INADDR_ANY;
199: return true;
200: }
201:
1.143.2.21.2. 4(paf 202:3): static int http_read_response(String& response, int sock, bool fail_on_status_ne_200){
1.143.2.2 paf 203: int result=0;
1.143.2.21.2. 2(paf 204:3): size_t EOLat=0;
1.126 paf 205: while(true) {
1.143.2.21.2. (paf 206:): char *buf=new(PointerFreeGC) char[MAX_STRING];
1.126 paf 207: ssize_t size=recv(sock, buf, MAX_STRING, 0);
208: if(size<=0)
209: break;
1.143.2.21.2. 7(paf 210:3): response.append_strdup(buf, size, String::L_TAINTED);
2(paf 211:3): if(!result && (EOLat=response.pos("\r\n", 2))!=STRING_NOT_FOUND) { // checking status in first response
(paf 212:): const String& status_line=response.mid(0, (size_t)EOLat);
1.143.2.15 paf 213: ArrayString astatus;
1.143.2.21.2. 4(paf 214:3): size_t pos_after=0;
215:3): status_line.split(astatus, pos_after, " ");
216:3): const String& status_code=*astatus.get(1);
217:3): result=status_code.as_int();
1.142 paf 218:
1.143.2.3 paf 219: if(fail_on_status_ne_200 && result!=200)
1.142 paf 220: throw Exception("http.status",
1.143.2.21.2. 4(paf 221:3): &status_code,
1.142 paf 222: "invalid HTTP response status");
223: }
224: }
1.143.2.2 paf 225: if(result)
226: return result;
1.142 paf 227: else
228: throw Exception("http.response",
1.143.2.21.2. (paf 229:): 0,
230:): "bad response from host - no status found (size=%lu)", response.length());
1.126 paf 231: }
232:
233: /* ********************** request *************************** */
234:
235: #if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP)
1.143.2.21.2. 4(paf 236:3): # define PA_USE_ALARM
1.126 paf 237: #endif
238:
1.143.2.21.2. 4(paf 239:3): #ifdef PA_USE_ALARM
1.126 paf 240: static sigjmp_buf timeout_env;
241: static void timeout_handler(int sig){
242: siglongjmp(timeout_env, 1);
243: }
244: #endif
245:
1.143.2.21.2. 4(paf 246:3): static int http_request(String& response,
247:3): const char* host, int port,
248:3): const char* request,
249:3): int timeout,
250:3): bool fail_on_status_ne_200) {
1.126 paf 251: if(!host)
252: throw Exception("http.host",
1.143.2.21.2. 4(paf 253:3): 0,
1.126 paf 254: "zero hostname"); //never
255:
1.143.2.21.2. 4(paf 256:3): #ifdef PA_USE_ALARM
257:3): signal(SIGALRM, timeout_handler);
1.126 paf 258: #endif
259: int sock=-1;
1.143.2.21.2. 4(paf 260:3): #ifdef PA_USE_ALARM
261:3): if(sigsetjmp(timeout_env, 1)) {
262:3): // stupid gcc [2.95.4] generated bad code
263:3): // which failed to handle sigsetjmp+throw: crashed inside of pre-throw code.
264:3): // rewritten simplier [though duplicating closesocket code]
265:3): if(sock>=0)
266:3): closesocket(sock);
267:3): throw Exception("http.timeout",
268:3): origin_string,
269:3): "timeout occured while retrieving document");
270:3): return 0; // never
271:3): } else {
272:3): alarm(timeout);
1.126 paf 273: #endif
1.143.2.21.2. 4(paf 274:3): try {
275:3): int result;
1.126 paf 276: struct sockaddr_in dest;
277:
1.143.2.21.2. 4(paf 278:3): if(!set_addr(&dest, host, port))
1.126 paf 279: throw Exception("http.host",
1.143.2.21.2. 4(paf 280:3): 0,
1.127 paf 281: "can not resolve hostname \"%s\"", host);
1.126 paf 282:
283: if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/))<0)
284: throw Exception("http.connect",
1.143.2.21.2. 4(paf 285:3): 0,
1.127 paf 286: "can not make socket: %s (%d)", strerror(errno), errno);
1.126 paf 287: if(connect(sock, (struct sockaddr *)&dest, sizeof(dest)))
288: throw Exception("http.connect",
1.143.2.21.2. 4(paf 289:3): 0,
1.127 paf 290: "can not connect to host \"%s\": %s (%d)", host, strerror(errno), errno);
1.126 paf 291: size_t request_size=strlen(request);
292: if(send(sock, request, request_size, 0)!=(ssize_t)request_size)
293: throw Exception("http.connect",
1.143.2.21.2. 4(paf 294:3): 0,
1.127 paf 295: "error sending request: %s (%d)", strerror(errno), errno);
1.126 paf 296:
1.143.2.21.2. (paf 297:): result=http_read_response(response, sock, fail_on_status_ne_200);
1.142 paf 298: closesocket(sock);
1.143.2.21.2. 4(paf 299:3): #ifdef PA_USE_ALARM
1.142 paf 300: alarm(0);
1.126 paf 301: #endif
1.143.2.21.2. 4(paf 302:3): return result;
303:3): } catch(...) {
304:3): #ifdef PA_USE_ALARM
305:3): alarm(0);
1.126 paf 306: #endif
1.143.2.21.2. 4(paf 307:3): if(sock>=0)
308:3): closesocket(sock);
309:3): rethrow;
310:3): }
311:3): #ifdef PA_USE_ALARM
1.126 paf 312: }
1.143.2.21.2. 4(paf 313:3): #endif
1.126 paf 314: }
315:
1.127 paf 316: #ifndef DOXYGEN
317: struct Http_pass_header_info {
1.143.2.21.2. 5(paf 318:3): Request_charsets* charsets;
1.127 paf 319: String* request;
320: bool user_agent_specified;
321: };
322: #endif
1.143.2.21.2. 5(paf 323:3): static void http_pass_header(HashStringValue::key_type key,
324:3): HashStringValue::value_type value,
4(paf 325:3): Http_pass_header_info *info) {
326:3): *info->request <<key<<": "
5(paf 327:3): << attributed_meaning_to_string(*value, String::L_HTTP_HEADER, false)
328:3): << "\n";
1.135 paf 329:
1.143.2.21.2. 5(paf 330:3): if(String(key, String::L_TAINTED).change_case(info->charsets->source(), String::CC_UPPER)=="USER-AGENT")
331:3): info->user_agent_specified=true;
1.126 paf 332: }
1.143.2.21.2. 5(paf 333:3):
334:3):
335:3): static Charset* detect_charset(Charset& source_charset, const String& content_type_value) {
336:3): const StringBody CONTENT_TYPE_VALUE=
337:3): content_type_value.change_case(source_charset, String::CC_UPPER);
338:3): // content-type: xxx/xxx; source_charset=WE-NEED-THIS
339:3): // content-type: xxx/xxx; source_charset="WE-NEED-THIS"
340:3): // content-type: xxx/xxx; source_charset="WE-NEED-THIS";
341:3): size_t before_charseteq_pos=CONTENT_TYPE_VALUE.pos("CHARSET=");
342:3): if(before_charseteq_pos!=STRING_NOT_FOUND) {
343:3): size_t charset_begin=before_charseteq_pos+8/*CHARSET="*/;
344:3): size_t open_quote_pos=CONTENT_TYPE_VALUE.pos('"', charset_begin);
345:3): bool quoted=open_quote_pos==charset_begin;
346:3): if(quoted)
347:3): charset_begin++; // skip opening '"'
348:3): size_t charset_end=0;
349:3): if(quoted) {
350:3): size_t close_quote_pos=CONTENT_TYPE_VALUE.pos('"', charset_begin);
351:3): if(close_quote_pos!=STRING_NOT_FOUND)
352:3): charset_end=close_quote_pos;
353:3): } else {
354:3): size_t delim_pos=CONTENT_TYPE_VALUE.pos(';', charset_begin);
355:3): if(delim_pos!=STRING_NOT_FOUND)
356:3): charset_end=delim_pos;
357:3): }
358:3): const StringBody CHARSET_NAME_BODY=
359:3): CONTENT_TYPE_VALUE.mid(charset_begin, charset_end);
360:3):
361:3): return &charsets.get(CHARSET_NAME_BODY);
362:3): }
363:3):
364:3): return 0;
365:3): }
366:3):
367:3):
1.143.2.16 paf 368: #ifndef DOXYGEN
1.143.2.21 paf 369: struct File_read_http_result {
1.143.2.21.2. 4(paf 370:3): char *str; size_t length;
(paf 371:): HashStringValue* headers;
1.143.2.16 paf 372: };
373: #endif
1.143.2.21.2. 5(paf 374:3): static File_read_http_result file_read_http(Request_charsets& charsets,
375:3): const String& file_spec,
4(paf 376:3): HashStringValue *options=0) {
1.143.2.21 paf 377: File_read_http_result result;
1.126 paf 378: char host[MAX_STRING];
1.129 paf 379: const char* uri;
1.126 paf 380: int port;
1.143.2.21.2. 4(paf 381:3): const char* method=0;
1.126 paf 382: int timeout=2;
1.142 paf 383: bool fail_on_status_ne_200=true;
1.143.2.21.2. 4(paf 384:3): Value* vheaders=0;
5(paf 385:3): Charset *asked_remote_charset=0;
1.126 paf 386:
1.143.2.21.2. 4(paf 387:3): String& connect_string=*new String;
(paf 388:): // not in ^sql{... L_SQL ...} spirit, but closer to ^file::load one
4(paf 389:3): connect_string.append(file_spec, String::L_URI); // tainted pieces -> URI pieces
1.133 paf 390:
1.143.2.21.2. 4(paf 391:3): const char* connect_string_cstr=connect_string.cstr(String::L_UNSPECIFIED);
1.143.2.10 paf 392: const char* current=connect_string_cstr;
1.143.2.3 paf 393: if(strncmp(current, "http://", 7)!=0)
1.126 paf 394: throw Exception(0,
1.143.2.21.2. 4(paf 395:3): &connect_string,
1.126 paf 396: "does not start with http://"); //never
1.143.2.3 paf 397: current+=7;
1.126 paf 398:
1.143.2.3 paf 399: strncpy(host, current, sizeof(host)-1); host[sizeof(host)-1]=0;
1.126 paf 400: char* host_uri=lsplit(host, '/');
1.143.2.3 paf 401: uri=host_uri?current+(host_uri-1-host):"/";
1.126 paf 402: char* port_cstr=lsplit(host, ':');
403: char* error_pos=0;
404: port=port_cstr?strtol(port_cstr, &error_pos, 0):80;
405:
1.127 paf 406: if(options) {
407: int valid_options=0;
1.143.2.21.2. (paf 408:): if(Value* vmethod=options->get(http_method_name)) {
1.127 paf 409: valid_options++;
1.143.2.21.2. (paf 410:): method=vmethod->as_string().cstr();
1.127 paf 411: }
1.143.2.21.2. (paf 412:): if(Value* vtimeout=options->get(http_timeout_name)) {
1.127 paf 413: valid_options++;
414: timeout=vtimeout->as_int();
415: }
1.143.2.3 paf 416: if(vheaders=options->get(http_headers_name)) {
1.127 paf 417: valid_options++;
418: }
1.143.2.21.2. (paf 419:): if(Value* vany_status=options->get(http_any_status_name)) {
1.142 paf 420: valid_options++;
421: fail_on_status_ne_200=!vany_status->as_bool();
422: }
1.143.2.21.2. 5(paf 423:3): if(Value* vcharset_name=options->get(http_charset_name)) {
424:3): valid_options++;
425:3): asked_remote_charset=&::charsets.get(vcharset_name->as_string().
426:3): change_case(charsets.source(), String::CC_UPPER));
427:3): }
1.142 paf 428:
1.143.2.3 paf 429: if(valid_options!=options->count())
1.127 paf 430: throw Exception("parser.runtime",
1.143.2.21.2. (paf 431:): 0,
1.127 paf 432: "invalid option passed");
1.143.2.21.2. 5(paf 433:3): }
434:3): if(!asked_remote_charset) // defaulting to $request:charset
435:3): asked_remote_charset=&charsets.source();
1.126 paf 436:
437: //making request
1.143.2.3 paf 438: String request;
439: if(method)
1.143.2.4 paf 440: request<<method;
1.143.2.3 paf 441: else
442: request<<"GET";
1.143.2.21.2. 5(paf 443:3): request<< " "<< uri <<" HTTP/1.0\n"
444:3): "host: "<< host<<"\n";
1.127 paf 445: bool user_agent_specified=false;
446: if(vheaders && !vheaders->is_string()) { // allow empty
1.143.2.21.2. 4(paf 447:3): if(HashStringValue *headers=vheaders->get_hash()) {
5(paf 448:3): Http_pass_header_info info={&charsets, &request};
1.127 paf 449: headers->for_each(http_pass_header, &info);
450: user_agent_specified=info.user_agent_specified;
451: } else
452: throw Exception("parser.runtime",
1.143.2.21.2. 4(paf 453:3): &connect_string,
1.127 paf 454: "headers param must be hash");
455: };
456: if(!user_agent_specified) // defaulting
457: request << "user-agent: " DEFAULT_USER_AGENT "\n";
1.126 paf 458: request<<"\n";
459:
460: //sending request
1.143.2.3 paf 461: String response;
1.143.2.21.2. 5(paf 462:3): const char* request_cstr;
463:3): {
464:3): // influence URLencoding of tainted pieces to String::L_URI lang
465:3): Temp_client_charset temp(charsets, *asked_remote_charset);
466:3):
467:3): request_cstr=request.cstr(String::L_UNSPECIFIED);
468:3):
469:3): // recode pieces not in String::L_URI lang
470:3): // [those violating HTTP standard, but widly used]
471:3): request_cstr=Charset::transcode(
472:3): String::C(request_cstr, strlen(request_cstr)),
473:3): charsets.source(),
474:3): *asked_remote_charset);
475:3): }
(paf 476:): int status_code=http_request(response,
4(paf 477:3): host, port, request_cstr,
1.142 paf 478: timeout, fail_on_status_ne_200);
1.126 paf 479:
480: //processing results
1.143.2.21.2. 2(paf 481:3): size_t pos=response.pos("\r\n\r\n", 4);
5(paf 482:3): if(pos==STRING_NOT_FOUND || pos<1) {
1.126 paf 483: throw Exception("http.response",
1.143.2.21.2. 4(paf 484:3): &connect_string,
1.126 paf 485: "bad response from host - no headers found");
486: }
1.143.2.21.2. (paf 487:): const String& header_block=response.mid(0, pos);
5(paf 488:3): const String& raw_body=response.mid(pos+4, response.length());
1.126 paf 489:
1.143.2.15 paf 490: ArrayString aheaders;
1.143.2.21.2. 4(paf 491:3): result.headers=new HashStringValue;
492:3): size_t pos_after=0;
493:3): header_block.split(aheaders, pos_after, "\r\n");
1.126 paf 494:
495: //processing headers
1.143.2.21.2. 6(paf 496:3): size_t aheaders_count=aheaders.count();
5(paf 497:3): Charset* real_remote_charset=0; // undetected, yet
6(paf 498:3): for(size_t i=1; i<aheaders_count; i++) {
4(paf 499:3): const String& line=*aheaders.get(i);
500:3): pos=line.pos(": ", 2);
2(paf 501:3): if(pos==STRING_NOT_FOUND || pos<1)
1.126 paf 502: throw Exception("http.response",
1.143.2.21.2. 4(paf 503:3): &connect_string,
504:3): "bad response from host - bad header \"%s\"", line.cstr());
5(paf 505:3): const StringBody HEADER_NAME=
506:3): line.mid(0, pos).change_case(charsets.source(), String::CC_UPPER);
507:3): const String& header_value=line.mid(pos+2, line.length());
508:3): if(HEADER_NAME=="CONTENT_TYPE")
509:3): real_remote_charset=detect_charset(charsets.source(), header_value);
510:3): result.headers->put(HEADER_NAME, new VString(header_value));
1.126 paf 511: }
1.143.2.21.2. 5(paf 512:3): // defaulting to used-asked charset [it's never empty!]
513:3): if(!real_remote_charset)
514:3): real_remote_charset=asked_remote_charset;
1.126 paf 515:
516: // output response
1.143.2.21.2. 5(paf 517:3): String::C real_body=Charset::transcode(
518:3): String::C(raw_body.cstrm()/*must be modifiable*/, raw_body.length()),
519:3): *real_remote_charset,
520:3): charsets.source());
521:3):
522:3): result.str=const_cast<char *>(real_body.str); // hacking a little
523:3): result.length=real_body.length;
4(paf 524:3): result.headers->put(file_status_name, new VInt(status_code));
1.143.2.16 paf 525: return result;
1.34 paf 526: }
1.123 paf 527:
1.143.2.21.2. (paf 528:): #endif
529:):
1.123 paf 530: #ifndef DOXYGEN
531: struct File_read_action_info {
1.143.2.4 paf 532: char **data; size_t *data_size;
1.126 paf 533: };
1.123 paf 534: #endif
1.143.2.21.2. (paf 535:): static void file_read_action(
1.126 paf 536: struct stat& finfo,
1.123 paf 537: int f,
1.143.2.21.2. (paf 538:): const String& file_spec, const char* fname, bool as_text,
1.123 paf 539: void *context) {
1.126 paf 540: File_read_action_info& info=*static_cast<File_read_action_info *>(context);
1.123 paf 541: if(size_t to_read_size=(size_t)finfo.st_size) {
1.143.2.21.2. (paf 542:): *info.data=new(PointerFreeGC) char[to_read_size+(as_text?1:0)];
1.126 paf 543: *info.data_size=(size_t)read(f, *info.data, to_read_size);
1.123 paf 544:
545: if(ssize_t(*info.data_size)<0 || *info.data_size>to_read_size)
1.126 paf 546: throw Exception(0,
1.143.2.21.2. (paf 547:): &file_spec,
1.123 paf 548: "read failed: actually read %lu bytes count not in [0..%lu] valid range",
1.126 paf 549: *info.data_size, to_read_size);
1.123 paf 550: } else { // empty file
551: if(as_text) {
1.143.2.21.2. (paf 552:): *info.data=new(PointerFreeGC) char[1];
1.123 paf 553: *(char*)(*info.data)=0;
554: } else
555: *info.data=0;
556: *info.data_size=0;
557: return;
558: }
1.126 paf 559: }
1.143.2.21.2. 5(paf 560:3): File_read_result file_read(Request_charsets& charsets, const String& file_spec,
1.143.2.16 paf 561: bool as_text, HashStringValue *params,
1.126 paf 562: bool fail_on_read_problem) {
1.143.2.21.2. 1(paf 563:3): File_read_result result={false};
(paf 564:): #ifdef PA_HTTP
4(paf 565:3): if(file_spec.starts_with("http://")) {
1.126 paf 566: // fail on read problem
1.143.2.21.2. 5(paf 567:3): File_read_http_result http=file_read_http(charsets, file_spec, params);
1.143.2.4 paf 568: result.success=true;
1.143.2.21.2. 1(paf 569:3): result.str=http.str;
570:3): result.length=http.length;
2(paf 571:3): result.headers=http.headers;
1.126 paf 572: } else {
1.143.2.21.2. (paf 573:): #endif
574:): File_read_action_info info={&result.str, &result.length};
575:): result.success=file_read_action_under_lock(file_spec,
1.126 paf 576: "read", file_read_action, &info,
577: as_text, fail_on_read_problem);
1.143.2.21.2. (paf 578:): #ifdef PA_HTTP
1.126 paf 579: }
1.143.2.21.2. (paf 580:): #endif
1.123 paf 581:
1.143.2.4 paf 582: if(result.success && as_text) {
1.131 paf 583: // UTF-8 signature: EF BB BF
1.143.2.21.2. (paf 584:): if(result.length>=3) {
585:): char *in=(char *)result.str;
2(paf 586:3): if(strncmp(in, "\xEB\xBB\xBF", 3)==0) {
(paf 587:): result.str=in+3; result.length-=3;// skip prefix
1.131 paf 588: }
589: }
590:
1.143.2.21.2. (paf 591:): fix_line_breaks((char *)(result.str), result.length);
1.123 paf 592: // note: after fixing
1.143.2.21.2. (paf 593:): ((char*&)(result.str))[result.length]=0;
1.123 paf 594: }
1.126 paf 595:
596: return result;
1.123 paf 597: }
598:
1.143.2.21.2. 3(paf 599:3): #ifdef PA_SAFE_MODE
600:3): void check_safe_mode(stat finfo, const String& file_spec, const char* fname) {
601:3): if(finfo.st_uid/*foreign?*/!=geteuid()
602:3): && finfo.st_gid/*foreign?*/!=getegid())
603:3): throw Exception("parser.runtime",
604:3): &file_spec,
605:3): "parser is in safe mode: "
606:3): "reading files of foreign group and user disabled "
607:3): "[recompile parser with --disable-safe-mode configure option], "
608:3): "actual filename '%s', "
609:3): "fuid(%d)!=euid(%d) or fgid(%d)!=egid(%d)",
610:3): fname,
611:3): finfo.st_uid, geteuid(),
612:3): finfo.st_gid, getegid());
613:3): }
614:3): #endif
615:3):
(paf 616:): bool file_read_action_under_lock(const String& file_spec,
1.126 paf 617: const char* action_name, File_read_action action, void *context,
618: bool as_text,
1.123 paf 619: bool fail_on_read_problem) {
1.143.2.21.2. (paf 620:): const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.33 paf 621: int f;
622:
623: // first open, next stat:
1.45 paf 624: // directory update of NTFS hard links performed on open.
1.33 paf 625: // ex:
626: // a.html:^test[] and b.html hardlink to a.html
627: // user inserts ! before ^test in a.html
1.126 paf 628: // directory entry of b.html in NTFS not updated at once,
1.35 paf 629: // they delay update till open, so we would receive "!^test[" string
630: // if would do stat, next open.
1.123 paf 631: // later: it seems, even this does not help sometimes
1.98 paf 632: if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) {
1.123 paf 633: try {
634: if(lock_shared_blocking(f)!=0)
1.126 paf 635: throw Exception("file.lock",
1.143.2.21.2. (paf 636:): &file_spec,
1.123 paf 637: "shared lock failed: %s (%d), actual filename '%s'",
1.143.2.21.2. (paf 638:): strerror(errno), errno, fname);
1.123 paf 639:
1.124 paf 640: struct stat finfo;
641: if(stat(fname, &finfo)!=0)
642: throw Exception("file.missing", // hardly possible: we just opened it OK
1.143.2.21.2. (paf 643:): &file_spec,
1.124 paf 644: "stat failed: %s (%d), actual filename '%s'",
1.143.2.21.2. (paf 645:): strerror(errno), errno, fname);
1.124 paf 646:
1.140 paf 647: #ifdef PA_SAFE_MODE
1.143.2.21.2. 3(paf 648:3): check_safe_mode(finfo, file_spec, fname);
1.105 paf 649: #endif
1.32 paf 650:
1.143.2.21.2. (paf 651:): action(finfo, f, file_spec, fname, as_text, context);
1.123 paf 652: } catch(...) {
1.126 paf 653: unlock(f);close(f);
1.123 paf 654: if(fail_on_read_problem)
1.143.2.11 paf 655: rethrow;
1.123 paf 656: return false;
657: }
1.87 paf 658:
1.126 paf 659: unlock(f);close(f);
1.72 parser 660: return true;
1.118 paf 661: } else {
662: if(fail_on_read_problem)
1.126 paf 663: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.143.2.21.2. (paf 664:): &file_spec,
1.123 paf 665: "%s failed: %s (%d), actual filename '%s'",
1.143.2.21.2. (paf 666:): action_name, strerror(errno), errno, fname);
1.118 paf 667: return false;
668: }
1.8 paf 669: }
670:
1.143.2.21.2. (paf 671:): static void create_dir_for_file(const String& file_spec) {
1.63 parser 672: size_t pos_after=1;
1.143.2.21.2. 2(paf 673:3): size_t pos_before;
3(paf 674:3): while((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND) {
(paf 675:): mkdir(file_spec.mid(0, pos_before).cstr(String::L_FILE_SPEC), 0775);
1.63 parser 676: pos_after=pos_before+1;
677: }
678: }
679:
1.98 paf 680: bool file_write_action_under_lock(
1.143.2.21.2. (paf 681:): const String& file_spec,
1.126 paf 682: const char* action_name, File_write_action action, void *context,
683: bool as_text,
684: bool do_append,
685: bool do_block,
1.110 paf 686: bool fail_on_lock_problem) {
1.143.2.21.2. (paf 687:): const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.28 paf 688: int f;
1.80 paf 689: if(access(fname, W_OK)!=0) // no
1.126 paf 690: create_dir_for_file(file_spec);
1.50 paf 691:
1.80 paf 692: if((f=open(fname,
693: O_CREAT|O_RDWR
694: |(as_text?_O_TEXT:_O_BINARY)
1.138 paf 695: |(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) {
1.99 paf 696: if((do_block?lock_exclusive_blocking(f):lock_exclusive_nonblocking(f))!=0) {
1.126 paf 697: Exception e("file.lock",
1.143.2.21.2. (paf 698:): &file_spec,
1.110 paf 699: "shared lock failed: %s (%d), actual filename '%s'",
1.143.2.21.2. (paf 700:): strerror(errno), errno, fname);
1.126 paf 701: close(f);
1.110 paf 702: if(fail_on_lock_problem)
703: throw e;
1.98 paf 704: return false;
705: }
1.96 paf 706:
707: try {
1.126 paf 708: action(f, context);
1.96 paf 709: } catch(...) {
1.138 paf 710: #ifdef HAVE_FTRUNCATE
1.104 paf 711: if(!do_append)
1.125 paf 712: ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower
1.138 paf 713: #endif
1.126 paf 714: unlock(f);close(f);
1.143.2.11 paf 715: rethrow;
1.96 paf 716: }
1.80 paf 717:
1.138 paf 718: #ifdef HAVE_FTRUNCATE
1.104 paf 719: if(!do_append)
1.125 paf 720: ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov <virtan@rotabanner.com> for discovering]
1.138 paf 721: #endif
1.126 paf 722: unlock(f);close(f);
1.98 paf 723: return true;
1.80 paf 724: } else
1.126 paf 725: throw Exception(errno==EACCES?"file.access":0,
1.143.2.21.2. (paf 726:): &file_spec,
1.96 paf 727: "%s failed: %s (%d), actual filename '%s'",
1.143.2.21.2. (paf 728:): action_name, strerror(errno), errno, fname);
1.96 paf 729: // here should be nothing, see rethrow above
730: }
731:
732: #ifndef DOXYGEN
733: struct File_write_action_info {
1.143.2.21.2. (paf 734:): const char* str; size_t length;
1.126 paf 735: };
1.96 paf 736: #endif
737: static void file_write_action(int f, void *context) {
1.126 paf 738: File_write_action_info& info=*static_cast<File_write_action_info *>(context);
1.143.2.21.2. (paf 739:): if(info.length) {
740:): int written=write(f, info.str, info.length);
1.116 paf 741: if(written<0)
1.126 paf 742: throw Exception(0,
1.143.2.21.2. (paf 743:): 0,
1.126 paf 744: "write failed: %s (%d)", strerror(errno), errno);
1.113 paf 745: }
1.96 paf 746: }
747: void file_write(
1.143.2.21.2. (paf 748:): const String& file_spec,
749:): const char* data, size_t size,
1.126 paf 750: bool as_text,
1.96 paf 751: bool do_append) {
1.126 paf 752: File_write_action_info info={data, size};
1.98 paf 753: file_write_action_under_lock(
1.143.2.4 paf 754: file_spec,
755: "write", file_write_action, &info,
756: as_text,
757: do_append);
1.30 paf 758: }
759:
1.63 parser 760: // throws nothing! [this is required in file_move & file_delete]
1.143.2.21.2. (paf 761:): static void rmdir(const String& file_spec, size_t pos_after) {
2(paf 762:3): size_t pos_before;
3(paf 763:3): if((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND)
1.126 paf 764: rmdir(file_spec, pos_before+1);
1.50 paf 765:
1.143.2.21.2. (paf 766:): rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::L_FILE_SPEC));
1.50 paf 767: }
1.143.2.21.2. (paf 768:): bool file_delete(const String& file_spec, bool fail_on_read_problem) {
769:): const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.54 parser 770: if(unlink(fname)!=0)
1.93 paf 771: if(fail_on_read_problem)
1.126 paf 772: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.143.2.21.2. (paf 773:): &file_spec,
1.93 paf 774: "unlink failed: %s (%d), actual filename '%s'",
1.143.2.21.2. (paf 775:): strerror(errno), errno, fname);
1.93 paf 776: else
777: return false;
1.50 paf 778:
1.126 paf 779: rmdir(file_spec, 1);
1.93 paf 780: return true;
1.60 parser 781: }
1.143.2.21.2. (paf 782:): void file_move(const String& old_spec, const String& new_spec) {
783:): const char* old_spec_cstr=old_spec.cstr(String::L_FILE_SPEC);
784:): const char* new_spec_cstr=new_spec.cstr(String::L_FILE_SPEC);
1.63 parser 785:
1.126 paf 786: create_dir_for_file(new_spec);
1.63 parser 787:
1.60 parser 788: if(rename(old_spec_cstr, new_spec_cstr)!=0)
1.126 paf 789: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.143.2.21.2. (paf 790:): &old_spec,
1.60 parser 791: "rename failed: %s (%d), actual filename '%s' to '%s'",
1.143.2.21.2. (paf 792:): strerror(errno), errno, old_spec_cstr, new_spec_cstr);
1.63 parser 793:
1.126 paf 794: rmdir(old_spec, 1);
1.31 paf 795: }
796:
1.51 paf 797:
1.126 paf 798: bool entry_exists(const char* fname, struct stat *afinfo) {
1.118 paf 799: struct stat lfinfo;
800: bool result=stat(fname, &lfinfo)==0;
801: if(afinfo)
802: *afinfo=lfinfo;
803: return result;
1.119 paf 804: }
805:
1.143.2.21.2. (paf 806:): bool entry_exists(const String& file_spec) {
807:): const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.126 paf 808: return entry_exists(fname, 0);
1.118 paf 809: }
810:
1.143.2.21.2. (paf 811:): static bool entry_readable(const String& file_spec, bool need_dir) {
812:): char* fname=file_spec.cstrm(String::L_FILE_SPEC);
1.120 paf 813: if(need_dir) {
1.126 paf 814: size_t size=strlen(fname);
1.120 paf 815: while(size) {
1.126 paf 816: char c=fname[size-1];
1.120 paf 817: if(c=='/' || c=='\\')
818: fname[--size]=0;
819: else
820: break;
821: }
822: }
1.51 paf 823: struct stat finfo;
1.118 paf 824: if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) {
1.109 paf 825: bool is_dir=(finfo.st_mode&S_IFDIR) != 0;
1.51 paf 826: return is_dir==need_dir;
827: }
828: return false;
829: }
1.143.2.21.2. (paf 830:): bool file_readable(const String& file_spec) {
1.126 paf 831: return entry_readable(file_spec, false);
1.51 paf 832: }
1.143.2.21.2. (paf 833:): bool dir_readable(const String& file_spec) {
1.126 paf 834: return entry_readable(file_spec, true);
1.65 parser 835: }
1.143.2.21.2. 0(paf 836:3): const String* file_readable(const String& path, const String& name) {
(paf 837:): String& result=*new String(path);
838:): result << "/";
839:): result << name;
840:): return file_readable(result)?&result:0;
1.43 paf 841: }
1.143.2.21.2. (paf 842:): bool file_executable(const String& file_spec) {
843:): return access(file_spec.cstr(String::L_FILE_SPEC), X_OK)==0;
1.44 paf 844: }
845:
1.143.2.21.2. (paf 846:): bool file_stat(const String& file_spec,
1.58 parser 847: size_t& rsize,
1.126 paf 848: time_t& ratime,
849: time_t& rmtime,
850: time_t& rctime,
1.64 parser 851: bool fail_on_read_problem) {
1.143.2.21.2. (paf 852:): const char* fname=file_spec.cstr(String::L_FILE_SPEC);
5(paf 853:3): struct stat finfo;
1.44 paf 854: if(stat(fname, &finfo)!=0)
1.64 parser 855: if(fail_on_read_problem)
1.126 paf 856: throw Exception("file.missing",
1.143.2.21.2. (paf 857:): &file_spec,
1.67 parser 858: "getting file size failed: %s (%d), real filename '%s'",
1.143.2.21.2. (paf 859:): strerror(errno), errno, fname);
1.64 parser 860: else
861: return false;
1.58 parser 862: rsize=finfo.st_size;
863: ratime=finfo.st_atime;
864: rmtime=finfo.st_mtime;
865: rctime=finfo.st_ctime;
1.64 parser 866: return true;
1.18 paf 867: }
868:
1.126 paf 869: char* getrow(char* *row_ref, char delim) {
870: char* result=*row_ref;
1.8 paf 871: if(result) {
1.126 paf 872: *row_ref=strchr(result, delim);
1.8 paf 873: if(*row_ref)
874: *((*row_ref)++)=0;
875: else if(!*result)
876: return 0;
877: }
878: return result;
879: }
880:
1.126 paf 881: char* lsplit(char* string, char delim) {
1.23 paf 882: if(string) {
1.126 paf 883: char* v=strchr(string, delim);
1.8 paf 884: if(v) {
885: *v=0;
886: return v+1;
887: }
888: }
889: return 0;
890: }
891:
1.126 paf 892: char* lsplit(char* *string_ref, char delim) {
893: char* result=*string_ref;
894: char* next=lsplit(*string_ref, delim);
1.8 paf 895: *string_ref=next;
896: return result;
1.9 paf 897: }
898:
1.126 paf 899: char* rsplit(char* string, char delim) {
1.18 paf 900: if(string) {
1.126 paf 901: char* v=strrchr(string, delim);
1.18 paf 902: if(v) {
1.9 paf 903: *v=0;
904: return v+1;
905: }
906: }
907: return NULL;
1.10 paf 908: }
909:
1.37 paf 910: /// @todo less stupid type detection
1.143.2.21.2. (paf 911:): const char* format(double value, char* fmt) {
1.126 paf 912: char local_buf[MAX_NUMBER];
1.108 paf 913: size_t size;
914:
1.10 paf 915: if(fmt)
916: if(strpbrk(fmt, "diouxX"))
917: if(strpbrk(fmt, "ouxX"))
1.126 paf 918: size=snprintf(local_buf, sizeof(local_buf), fmt, (uint)value);
1.10 paf 919: else
1.126 paf 920: size=snprintf(local_buf, sizeof(local_buf), fmt, (int)value);
1.10 paf 921: else
1.126 paf 922: size=snprintf(local_buf, sizeof(local_buf), fmt, value);
1.10 paf 923: else
1.126 paf 924: size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value);
1.10 paf 925:
1.143.2.21.2. (paf 926:): return pa_strdup(local_buf, size);
1.12 paf 927: }
928:
1.36 paf 929: size_t stdout_write(const void *buf, size_t size) {
1.12 paf 930: #ifdef WIN32
931: do{
1.143.2.21.2. (paf 932:): int chunk_written=fwrite(buf, 1, min((size_t)8*0x400, size), stdout);
1.12 paf 933: if(chunk_written<=0)
934: break;
935: size-=chunk_written;
1.36 paf 936: buf=((const char*)buf)+chunk_written;
1.126 paf 937: } while(size>0);
1.12 paf 938:
939: return size;
940: #else
1.126 paf 941: return fwrite(buf, 1, size, stdout);
1.12 paf 942: #endif
1.2 paf 943: }
1.14 paf 944:
1.143.2.21.2. (paf 945:): char* unescape_chars(const char* cp, int len) {
946:): char* s=new(PointerFreeGC) char[len + 1];
1.14 paf 947: enum EscapeState {
1.33 paf 948: EscapeRest,
949: EscapeFirst,
1.14 paf 950: EscapeSecond
951: } escapeState=EscapeRest;
952: int escapedValue=0;
953: int srcPos=0;
954: int dstPos=0;
955: while(srcPos < len) {
1.126 paf 956: int ch=cp[srcPos];
1.14 paf 957: switch(escapeState) {
958: case EscapeRest:
959: if(ch=='%') {
960: escapeState=EscapeFirst;
961: } else if(ch=='+') {
1.126 paf 962: s[dstPos++]=' ';
1.14 paf 963: } else {
964: s[dstPos++]=ch;
965: }
966: break;
967: case EscapeFirst:
968: escapedValue=hex_value[ch] << 4;
969: escapeState=EscapeSecond;
970: break;
971: case EscapeSecond:
1.126 paf 972: escapedValue +=hex_value[ch];
1.14 paf 973: s[dstPos++]=escapedValue;
974: escapeState=EscapeRest;
975: break;
976: }
1.126 paf 977: srcPos++;
1.14 paf 978: }
979: s[dstPos]=0;
980: return s;
1.24 paf 981: }
982:
983: #ifdef WIN32
1.126 paf 984: void back_slashes_to_slashes(char* s) {
1.24 paf 985: if(s)
986: for(; *s; s++)
987: if(*s=='\\')
1.126 paf 988: *s='/';
1.24 paf 989: }
1.42 paf 990: /*
1.126 paf 991: void slashes_to_back_slashes(char* s) {
1.42 paf 992: if(s)
993: for(; *s; s++)
994: if(*s=='/')
1.126 paf 995: *s='\\';
1.42 paf 996: }
997: */
1.24 paf 998: #endif
1.41 paf 999:
1.126 paf 1000: bool StrEqNc(const char* s1, const char* s2, bool strict) {
1.41 paf 1001: while(true) {
1002: if(!(*s1)) {
1003: if(!(*s2))
1004: return true;
1005: else
1006: return !strict;
1007: } else if(!(*s2))
1008: return !strict;
1009: if(isalpha(*s1)) {
1010: if(tolower(*s1) !=tolower(*s2))
1011: return false;
1012: } else if((*s1) !=(*s2))
1013: return false;
1.126 paf 1014: s1++;
1015: s2++;
1.41 paf 1016: }
1.57 parser 1017: }
1018:
1.84 paf 1019: static bool isLeap(int year) {
1.57 parser 1020: return !(
1021: (year % 4) || ((year % 400) && !(year % 100))
1.126 paf 1022: );
1.57 parser 1023: }
1024:
1025: int getMonthDays(int year, int month) {
1026: int monthDays[]={
1.126 paf 1027: 31,
1028: isLeap(year) ? 29 : 28,
1029: 31,
1030: 30,
1031: 31,
1032: 30,
1033: 31,
1034: 31,
1035: 30,
1036: 31,
1037: 30,
1.57 parser 1038: 31
1.126 paf 1039: };
1040: return monthDays[month];
1.41 paf 1041: }
1.69 parser 1042:
1.126 paf 1043: void remove_crlf(char* start, char* end) {
1044: for(char* p=start; p<end; p++)
1.69 parser 1045: switch(*p) {
1.126 paf 1046: case '\n': *p='|'; break;
1047: case '\r': *p=' '; break;
1.69 parser 1048: }
1.91 paf 1049: }
1050:
1051:
1052: /// must be last in this file
1053: #undef vsnprintf
1.126 paf 1054: int __vsnprintf(char* b, size_t s, const char* f, va_list l) {
1.91 paf 1055: if(!s)
1056: return 0;
1057:
1058: int r;
1059: // note: on win32& maybe somewhere else
1060: // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing
1061: --s;
1062: #if _MSC_VER
1063: /*
1064: win32:
1065: mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm
1066:
1.143.2.12 paf 1067: if the number of bytes to write exceeds buffer, then count bytes are written and Ö1 is returned
1.91 paf 1068: */
1.126 paf 1069: r=_vsnprintf(b, s, f, l);
1.91 paf 1070: if(r<0)
1071: r=s;
1072: #else
1.126 paf 1073: r=vsnprintf(b, s, f, l);
1.91 paf 1074: /*
1075: solaris:
1076: man vsnprintf
1077:
1078: The snprintf() function returns the number of characters
1079: formatted, that is, the number of characters that would have
1080: been written to the buffer if it were large enough. If the
1081: value of n is 0 on a call to snprintf(), an unspecified
1082: value less than 1 is returned.
1083: */
1084:
1085: if(r<0)
1086: r=0;
1087: else if(r>s)
1088: r=s;
1089: #endif
1090: b[r]=0;
1091: return r;
1092: }
1093:
1.126 paf 1094: int __snprintf(char* b, size_t s, const char* f, ...) {
1.91 paf 1095: va_list l;
1.126 paf 1096: va_start(l, f);
1097: int r=__vsnprintf(b, s, f, l);
1098: va_end(l);
1.91 paf 1099: return r;
1.98 paf 1100: }
1101:
1102: int pa_sleep(unsigned long secs, unsigned long usecs) {
1.126 paf 1103: for (; usecs >= 1000000; ++secs, usecs -= 1000000);
1.98 paf 1104:
1105: #ifdef WIN32
1.126 paf 1106: Sleep(secs * 1000 + usecs / 1000);
1.98 paf 1107: return 0;
1108: #else
1109: struct timeval t;
1110: t.tv_sec = secs;
1111: t.tv_usec = usecs;
1.126 paf 1112: return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0);
1.98 paf 1113: #endif
1.135 paf 1114: }
1115:
1116:
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