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1// -*- mode: cpp; mode: fold -*-
2// Description /*{{{*/
36f610f1 3// $Id: strutl.cc,v 1.24 1999/04/04 08:07:39 jgg Exp $
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4/* ######################################################################
5
6 String Util - Some usefull string functions.
7
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8 These have been collected from here and there to do all sorts of usefull
9 things to strings. They are usefull in file parsers, URI handlers and
10 especially in APT methods.
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11
12 This source is placed in the Public Domain, do with it what you will
24231681 13 It was originally written by Jason Gunthorpe <jgg@gpu.srv.ualberta.ca>
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14
15 ##################################################################### */
16 /*}}}*/
17// Includes /*{{{*/
492f957a 18#ifdef __GNUG__
cdcc6d34 19#pragma implementation "apt-pkg/strutl.h"
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20#endif
21
cdcc6d34 22#include <apt-pkg/strutl.h>
7049d16d 23#include <apt-pkg/fileutl.h>
0a8a80e5 24
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25#include <ctype.h>
26#include <string.h>
27#include <stdio.h>
2b154e53 28#include <unistd.h>
b0db36b1 29#include <errno.h>
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30 /*}}}*/
31
32// strstrip - Remove white space from the front and back of a string /*{{{*/
33// ---------------------------------------------------------------------
34/* This is handy to use when parsing a file. It also removes \n's left
35 over from fgets and company */
36char *_strstrip(char *String)
37{
38 for (;*String != 0 && (*String == ' ' || *String == '\t'); String++);
39
40 if (*String == 0)
41 return String;
42
43 char *End = String + strlen(String) - 1;
44 for (;End != String - 1 && (*End == ' ' || *End == '\t' || *End == '\n' ||
45 *End == '\r'); End--);
46 End++;
47 *End = 0;
48 return String;
49};
50 /*}}}*/
51// strtabexpand - Converts tabs into 8 spaces /*{{{*/
52// ---------------------------------------------------------------------
53/* */
54char *_strtabexpand(char *String,size_t Len)
55{
56 for (char *I = String; I != I + Len && *I != 0; I++)
57 {
58 if (*I != '\t')
59 continue;
60 if (I + 8 > String + Len)
61 {
62 *I = 0;
63 return String;
64 }
65
66 /* Assume the start of the string is 0 and find the next 8 char
67 division */
68 int Len;
69 if (String == I)
70 Len = 1;
71 else
72 Len = 8 - ((String - I) % 8);
73 Len -= 2;
74 if (Len <= 0)
75 {
76 *I = ' ';
77 continue;
78 }
79
80 memmove(I + Len,I + 1,strlen(I) + 1);
81 for (char *J = I; J + Len != I; *I = ' ', I++);
82 }
83 return String;
84}
85 /*}}}*/
86// ParseQuoteWord - Parse a single word out of a string /*{{{*/
87// ---------------------------------------------------------------------
88/* This grabs a single word, converts any % escaped characters to their
89 proper values and advances the pointer. Double quotes are understood
08e8f724 90 and striped out as well. This is for URI/URL parsing. */
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91bool ParseQuoteWord(const char *&String,string &Res)
92{
93 // Skip leading whitespace
94 const char *C = String;
95 for (;*C != 0 && *C == ' '; C++);
96 if (*C == 0)
97 return false;
98
99 // Jump to the next word
36f610f1 100 for (;*C != 0 && isspace(*C) == 0; C++)
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101 {
102 if (*C == '"')
103 {
104 for (C++;*C != 0 && *C != '"'; C++);
105 if (*C == 0)
106 return false;
107 }
108 }
109
110 // Now de-quote characters
111 char Buffer[1024];
112 char Tmp[3];
113 const char *Start = String;
114 char *I;
115 for (I = Buffer; I < Buffer + sizeof(Buffer) && Start != C; I++)
116 {
117 if (*Start == '%' && Start + 2 < C)
118 {
119 Tmp[0] = Start[1];
120 Tmp[1] = Start[2];
1bc849af 121 Tmp[2] = 0;
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122 *I = (char)strtol(Tmp,0,16);
123 Start += 3;
124 continue;
125 }
126 if (*Start != '"')
127 *I = *Start;
128 else
129 I--;
130 Start++;
131 }
132 *I = 0;
133 Res = Buffer;
134
135 // Skip ending white space
36f610f1 136 for (;*C != 0 && isspace(*C) != 0; C++);
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137 String = C;
138 return true;
139}
140 /*}}}*/
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141// ParseCWord - Parses a string like a C "" expression /*{{{*/
142// ---------------------------------------------------------------------
143/* This expects a series of space seperated strings enclosed in ""'s.
144 It concatenates the ""'s into a single string. */
145bool ParseCWord(const char *String,string &Res)
146{
147 // Skip leading whitespace
148 const char *C = String;
149 for (;*C != 0 && *C == ' '; C++);
150 if (*C == 0)
151 return false;
152
153 char Buffer[1024];
154 char *Buf = Buffer;
155 if (strlen(String) >= sizeof(Buffer))
156 return false;
157
158 for (; *C != 0; C++)
159 {
160 if (*C == '"')
161 {
162 for (C++; *C != 0 && *C != '"'; C++)
163 *Buf++ = *C;
164
165 if (*C == 0)
166 return false;
167
168 continue;
169 }
170
171 if (C != String && isspace(*C) != 0 && isspace(C[-1]) != 0)
172 continue;
173 if (isspace(*C) == 0)
174 return false;
175 *Buf++ = ' ';
176 }
177 *Buf = 0;
178 Res = Buffer;
179 return true;
180}
181 /*}}}*/
6d5dd02a 182// QuoteString - Convert a string into quoted from /*{{{*/
1bc849af 183// ---------------------------------------------------------------------
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184/* */
185string QuoteString(string Str,const char *Bad)
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186{
187 string Res;
188 for (string::iterator I = Str.begin(); I != Str.end(); I++)
189 {
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190 if (strchr(Bad,*I) != 0 || isprint(*I) == 0 ||
191 *I <= 0x20 || *I >= 0x7F)
1bc849af 192 {
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193 char Buf[10];
194 sprintf(Buf,"%%%02x",(int)*I);
195 Res += Buf;
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196 }
197 else
198 Res += *I;
199 }
200 return Res;
201}
202 /*}}}*/
6d5dd02a 203// DeQuoteString - Convert a string from quoted from /*{{{*/
6c139d6e 204// ---------------------------------------------------------------------
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205/* This undoes QuoteString */
206string DeQuoteString(string Str)
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207{
208 string Res;
209 for (string::iterator I = Str.begin(); I != Str.end(); I++)
210 {
6d5dd02a 211 if (*I == '%' && I + 2 < Str.end())
6c139d6e 212 {
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213 char Tmp[3];
214 Tmp[0] = I[1];
215 Tmp[1] = I[2];
216 Tmp[2] = 0;
217 Res += (char)strtol(Tmp,0,16);
218 I += 2;
219 continue;
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220 }
221 else
222 Res += *I;
223 }
6d5dd02a 224 return Res;
6c139d6e 225}
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226
227 /*}}}*/
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228// SizeToStr - Convert a long into a human readable size /*{{{*/
229// ---------------------------------------------------------------------
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230/* A max of 4 digits are shown before conversion to the next highest unit.
231 The max length of the string will be 5 chars unless the size is > 10
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232 YottaBytes (E24) */
233string SizeToStr(double Size)
234{
235 char S[300];
236 double ASize;
237 if (Size >= 0)
238 ASize = Size;
239 else
240 ASize = -1*Size;
241
242 /* bytes, KiloBytes, MegaBytes, GigaBytes, TeraBytes, PetaBytes,
243 ExaBytes, ZettaBytes, YottaBytes */
7f25bdff 244 char Ext[] = {'\0','k','M','G','T','P','E','Z','Y'};
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245 int I = 0;
246 while (I <= 8)
247 {
248 if (ASize < 100 && I != 0)
249 {
250 sprintf(S,"%.1f%c",ASize,Ext[I]);
251 break;
252 }
253
254 if (ASize < 10000)
255 {
256 sprintf(S,"%.0f%c",ASize,Ext[I]);
257 break;
258 }
259 ASize /= 1000.0;
260 I++;
261 }
262
263 return S;
264}
265 /*}}}*/
266// TimeToStr - Convert the time into a string /*{{{*/
267// ---------------------------------------------------------------------
268/* Converts a number of seconds to a hms format */
269string TimeToStr(unsigned long Sec)
270{
271 char S[300];
272
273 while (1)
274 {
275 if (Sec > 60*60*24)
276 {
277 sprintf(S,"%lid %lih%lim%lis",Sec/60/60/24,(Sec/60/60) % 24,(Sec/60) % 60,Sec % 60);
278 break;
279 }
280
281 if (Sec > 60*60)
282 {
283 sprintf(S,"%lih%lim%lis",Sec/60/60,(Sec/60) % 60,Sec % 60);
284 break;
285 }
286
287 if (Sec > 60)
288 {
289 sprintf(S,"%lim%lis",Sec/60,Sec % 60);
290 break;
291 }
292
293 sprintf(S,"%lis",Sec);
294 break;
295 }
296
297 return S;
298}
299 /*}}}*/
300// SubstVar - Substitute a string for another string /*{{{*/
301// ---------------------------------------------------------------------
302/* This replaces all occurances of Subst with Contents in Str. */
303string SubstVar(string Str,string Subst,string Contents)
304{
8efa2a3b 305 string::size_type Pos = 0;
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306 string::size_type OldPos = 0;
307 string Temp;
308
309 while (OldPos < Str.length() &&
310 (Pos = Str.find(Subst,OldPos)) != string::npos)
311 {
312 Temp += string(Str,OldPos,Pos) + Contents;
313 OldPos = Pos + Subst.length();
314 }
315
316 if (OldPos == 0)
317 return Str;
318
319 return Temp + string(Str,OldPos);
320}
321 /*}}}*/
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322// URItoFileName - Convert the uri into a unique file name /*{{{*/
323// ---------------------------------------------------------------------
324/* This converts a URI into a safe filename. It quotes all unsafe characters
325 and converts / to _ and removes the scheme identifier. The resulting
326 file name should be unique and never occur again for a different file */
327string URItoFileName(string URI)
328{
329 string::const_iterator I = URI.begin() + URI.find(':') + 1;
330 for (; I < URI.end() && *I == '/'; I++);
331
332 // "\x00-\x20{}|\\\\^\\[\\]<>\"\x7F-\xFF";
333 URI = QuoteString(string(I,URI.end() - I),"\\|{}[]<>\"^~_=!@#$%^&*");
334 string::iterator J = URI.begin();
335 for (; J != URI.end(); J++)
336 if (*J == '/')
337 *J = '_';
338 return URI;
339}
340 /*}}}*/
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341// Base64Encode - Base64 Encoding routine for short strings /*{{{*/
342// ---------------------------------------------------------------------
343/* This routine performs a base64 transformation on a string. It was ripped
344 from wget and then patched and bug fixed.
345
346 This spec can be found in rfc2045 */
347string Base64Encode(string S)
348{
349 // Conversion table.
350 static char tbl[64] = {'A','B','C','D','E','F','G','H',
351 'I','J','K','L','M','N','O','P',
352 'Q','R','S','T','U','V','W','X',
353 'Y','Z','a','b','c','d','e','f',
354 'g','h','i','j','k','l','m','n',
355 'o','p','q','r','s','t','u','v',
356 'w','x','y','z','0','1','2','3',
357 '4','5','6','7','8','9','+','/'};
358
359 // Pre-allocate some space
360 string Final;
361 Final.reserve((4*S.length() + 2)/3 + 2);
362
363 /* Transform the 3x8 bits to 4x6 bits, as required by
364 base64. */
365 for (string::const_iterator I = S.begin(); I < S.end(); I += 3)
366 {
367 char Bits[3] = {0,0,0};
368 Bits[0] = I[0];
369 if (I + 1 < S.end())
370 Bits[1] = I[1];
371 if (I + 2 < S.end())
372 Bits[2] = I[2];
373
374 Final += tbl[Bits[0] >> 2];
375 Final += tbl[((Bits[0] & 3) << 4) + (Bits[1] >> 4)];
376
377 if (I + 1 >= S.end())
378 break;
379
380 Final += tbl[((Bits[1] & 0xf) << 2) + (Bits[2] >> 6)];
381
382 if (I + 2 >= S.end())
383 break;
384
385 Final += tbl[Bits[2] & 0x3f];
386 }
387
388 /* Apply the padding elements, this tells how many bytes the remote
389 end should discard */
390 if (S.length() % 3 == 2)
391 Final += '=';
392 if (S.length() % 3 == 1)
393 Final += "==";
394
395 return Final;
396}
397 /*}}}*/
398// stringcmp - Arbitary string compare /*{{{*/
399// ---------------------------------------------------------------------
400/* This safely compares two non-null terminated strings of arbitary
401 length */
402int stringcmp(const char *A,const char *AEnd,const char *B,const char *BEnd)
403{
404 for (; A != AEnd && B != BEnd; A++, B++)
405 if (*A != *B)
406 break;
407
408 if (A == AEnd && B == BEnd)
409 return 0;
410 if (A == AEnd)
411 return 1;
412 if (B == BEnd)
413 return -1;
414 if (*A < *B)
415 return -1;
416 return 1;
417}
418 /*}}}*/
419// stringcasecmp - Arbitary case insensitive string compare /*{{{*/
420// ---------------------------------------------------------------------
421/* */
422int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd)
423{
424 for (; A != AEnd && B != BEnd; A++, B++)
425 if (toupper(*A) != toupper(*B))
426 break;
3b5421b4 427
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428 if (A == AEnd && B == BEnd)
429 return 0;
430 if (A == AEnd)
431 return 1;
432 if (B == BEnd)
433 return -1;
434 if (toupper(*A) < toupper(*B))
435 return -1;
436 return 1;
437}
438 /*}}}*/
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439// LookupTag - Lookup the value of a tag in a taged string /*{{{*/
440// ---------------------------------------------------------------------
441/* The format is like those used in package files and the method
442 communication system */
443string LookupTag(string Message,const char *Tag,const char *Default)
444{
445 // Look for a matching tag.
446 int Length = strlen(Tag);
447 for (string::iterator I = Message.begin(); I + Length < Message.end(); I++)
448 {
449 // Found the tag
450 if (I[Length] == ':' && stringcasecmp(I,I+Length,Tag) == 0)
451 {
452 // Find the end of line and strip the leading/trailing spaces
453 string::iterator J;
454 I += Length + 1;
455 for (; isspace(*I) != 0 && I < Message.end(); I++);
456 for (J = I; *J != '\n' && J < Message.end(); J++);
457 for (; J > I && isspace(J[-1]) != 0; J--);
458
459 return string(I,J-I);
460 }
461
462 for (; *I != '\n' && I < Message.end(); I++);
463 }
464
465 // Failed to find a match
466 if (Default == 0)
467 return string();
468 return Default;
469}
470 /*}}}*/
471// StringToBool - Converts a string into a boolean /*{{{*/
472// ---------------------------------------------------------------------
473/* This inspects the string to see if it is true or if it is false and
474 then returns the result. Several varients on true/false are checked. */
475int StringToBool(string Text,int Default = -1)
476{
477 char *End;
478 int Res = strtol(Text.c_str(),&End,0);
479 if (End != Text.c_str() && Res >= 0 && Res <= 1)
480 return Res;
481
482 // Check for positives
483 if (strcasecmp(Text.c_str(),"no") == 0 ||
484 strcasecmp(Text.c_str(),"false") == 0 ||
485 strcasecmp(Text.c_str(),"without") == 0 ||
7f25bdff 486 strcasecmp(Text.c_str(),"off") == 0 ||
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487 strcasecmp(Text.c_str(),"disable") == 0)
488 return 0;
489
490 // Check for negatives
491 if (strcasecmp(Text.c_str(),"yes") == 0 ||
492 strcasecmp(Text.c_str(),"true") == 0 ||
493 strcasecmp(Text.c_str(),"with") == 0 ||
7f25bdff 494 strcasecmp(Text.c_str(),"on") == 0 ||
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495 strcasecmp(Text.c_str(),"enable") == 0)
496 return 1;
497
498 return Default;
499}
500 /*}}}*/
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501// TimeRFC1123 - Convert a time_t into RFC1123 format /*{{{*/
502// ---------------------------------------------------------------------
503/* This converts a time_t into a string time representation that is
504 year 2000 complient and timezone neutral */
505string TimeRFC1123(time_t Date)
506{
507 struct tm Conv = *gmtime(&Date);
508 char Buf[300];
509
510 const char *Day[] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
511 const char *Month[] = {"Jan","Feb","Mar","Apr","May","Jun","Jul",
512 "Aug","Sep","Oct","Nov","Dec"};
513
514 sprintf(Buf,"%s, %02i %s %i %02i:%02i:%02i GMT",Day[Conv.tm_wday],
515 Conv.tm_mday,Month[Conv.tm_mon],Conv.tm_year+1900,Conv.tm_hour,
516 Conv.tm_min,Conv.tm_sec);
517 return Buf;
518}
519 /*}}}*/
520// ReadMessages - Read messages from the FD /*{{{*/
521// ---------------------------------------------------------------------
522/* This pulls full messages from the input FD into the message buffer.
523 It assumes that messages will not pause during transit so no
524 fancy buffering is used. */
525bool ReadMessages(int Fd, vector<string> &List)
526{
527 char Buffer[4000];
528 char *End = Buffer;
529
530 while (1)
531 {
532 int Res = read(Fd,End,sizeof(Buffer) - (End-Buffer));
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533 if (Res < 0 && errno == EINTR)
534 continue;
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535
536 // Process is dead, this is kind of bad..
537 if (Res == 0)
538 return false;
539
540 // No data
541 if (Res <= 0)
542 return true;
543
544 End += Res;
545
546 // Look for the end of the message
c88edf1d 547 for (char *I = Buffer; I + 1 < End; I++)
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548 {
549 if (I[0] != '\n' || I[1] != '\n')
550 continue;
551
552 // Pull the message out
553 string Message(Buffer,0,I-Buffer);
554
555 // Fix up the buffer
556 for (; I < End && *I == '\n'; I++);
557 End -= I-Buffer;
558 memmove(Buffer,I,End-Buffer);
559 I = Buffer;
560
561 List.push_back(Message);
562 }
563 if (End == Buffer)
564 return true;
565
566 if (WaitFd(Fd) == false)
567 return false;
568 }
569}
570 /*}}}*/
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571// MonthConv - Converts a month string into a number /*{{{*/
572// ---------------------------------------------------------------------
573/* This was lifted from the boa webserver which lifted it from 'wn-v1.07'
574 Made it a bit more robust with a few touppers though. */
575static int MonthConv(char *Month)
576{
577 switch (toupper(*Month))
578 {
579 case 'A':
580 return toupper(Month[1]) == 'P'?3:7;
581 case 'D':
582 return 11;
583 case 'F':
584 return 1;
585 case 'J':
586 if (toupper(Month[1]) == 'A')
587 return 0;
588 return toupper(Month[2]) == 'N'?5:6;
589 case 'M':
590 return toupper(Month[2]) == 'R'?2:4;
591 case 'N':
592 return 10;
593 case 'O':
594 return 9;
595 case 'S':
596 return 8;
597
598 // Pretend it is January..
599 default:
600 return 0;
601 }
602}
603 /*}}}*/
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604// timegm - Internal timegm function if gnu is not available /*{{{*/
605// ---------------------------------------------------------------------
606/* Ripped this evil little function from wget - I prefer the use of
607 GNU timegm if possible as this technique will have interesting problems
608 with leap seconds, timezones and other.
609
610 Converts struct tm to time_t, assuming the data in tm is UTC rather
611 than local timezone (mktime assumes the latter).
612
613 Contributed by Roger Beeman <beeman@cisco.com>, with the help of
614 Mark Baushke <mdb@cisco.com> and the rest of the Gurus at CISCO. */
615#ifndef __USE_MISC // glib sets this
616static time_t timegm(struct tm *t)
617{
618 time_t tl, tb;
619
620 tl = mktime (t);
621 if (tl == -1)
622 return -1;
623 tb = mktime (gmtime (&tl));
624 return (tl <= tb ? (tl + (tl - tb)) : (tl - (tb - tl)));
625}
626#endif
627 /*}}}*/
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628// StrToTime - Converts a string into a time_t /*{{{*/
629// ---------------------------------------------------------------------
630/* This handles all 3 populare time formats including RFC 1123, RFC 1036
631 and the C library asctime format. It requires the GNU library function
632 'timegm' to convert a struct tm in UTC to a time_t. For some bizzar
633 reason the C library does not provide any such function :<*/
634bool StrToTime(string Val,time_t &Result)
635{
636 struct tm Tm;
637 char Month[10];
638 const char *I = Val.c_str();
639
640 // Skip the day of the week
641 for (;*I != 0 && *I != ' '; I++);
642
643 // Handle RFC 1123 time
644 if (sscanf(I," %d %3s %d %d:%d:%d GMT",&Tm.tm_mday,Month,&Tm.tm_year,
645 &Tm.tm_hour,&Tm.tm_min,&Tm.tm_sec) != 6)
646 {
647 // Handle RFC 1036 time
648 if (sscanf(I," %d-%3s-%d %d:%d:%d GMT",&Tm.tm_mday,Month,
649 &Tm.tm_year,&Tm.tm_hour,&Tm.tm_min,&Tm.tm_sec) == 6)
650 Tm.tm_year += 1900;
651 else
652 {
653 // asctime format
654 if (sscanf(I," %3s %d %d:%d:%d %d",Month,&Tm.tm_mday,
655 &Tm.tm_hour,&Tm.tm_min,&Tm.tm_sec,&Tm.tm_year) != 6)
656 return false;
657 }
658 }
659
660 Tm.tm_isdst = 0;
661 Tm.tm_mon = MonthConv(Month);
662 Tm.tm_year -= 1900;
663
664 // Convert to local time and then to GMT
665 Result = timegm(&Tm);
666 return true;
667}
668 /*}}}*/
93bf083d 669
be4401bf 670// URI::CopyFrom - Copy from an object /*{{{*/
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671// ---------------------------------------------------------------------
672/* This parses the URI into all of its components */
be4401bf 673void URI::CopyFrom(string U)
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674{
675 string::const_iterator I = U.begin();
676
677 // Locate the first colon, this seperates the scheme
678 for (; I < U.end() && *I != ':' ; I++);
679 string::const_iterator FirstColon = I;
680
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681 /* Determine if this is a host type URI with a leading double //
682 and then search for the first single / */
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683 string::const_iterator SingleSlash = I;
684 if (I + 3 < U.end() && I[1] == '/' && I[2] == '/')
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685 SingleSlash += 3;
686 for (; SingleSlash < U.end() && *SingleSlash != '/'; SingleSlash++);
687 if (SingleSlash > U.end())
f46e7681 688 SingleSlash = U.end();
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689
690 // We can now write the access and path specifiers
691 Access = string(U,0,FirstColon - U.begin());
692 if (SingleSlash != U.end())
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693 Path = string(U,SingleSlash - U.begin());
694 if (Path.empty() == true)
695 Path = "/";
696
93bf083d 697 // Now we attempt to locate a user:pass@host fragment
542ec555 698 if (FirstColon[1] == '/' && FirstColon[2] == '/')
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699 FirstColon += 3;
700 else
701 FirstColon += 1;
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702 if (FirstColon >= U.end())
703 return;
704
705 if (FirstColon > SingleSlash)
706 FirstColon = SingleSlash;
707
708 // Search for the @
709 I = FirstColon;
710 for (; I < SingleSlash && *I != '@'; I++);
711 string::const_iterator At = I;
712
713 // Colon in the @ section
714 I = FirstColon + 1;
715 for (; I < At && *I != ':'; I++);
716 string::const_iterator SecondColon = I;
717
718 // Now write the host and user/pass
719 if (At == SingleSlash)
720 {
721 if (FirstColon < SingleSlash)
722 Host = string(U,FirstColon - U.begin(),SingleSlash - FirstColon);
723 }
724 else
725 {
726 Host = string(U,At - U.begin() + 1,SingleSlash - At - 1);
727 User = string(U,FirstColon - U.begin(),SecondColon - FirstColon);
728 if (SecondColon < At)
729 Password = string(U,SecondColon - U.begin() + 1,At - SecondColon - 1);
730 }
731
732 // Now we parse off a pot number from the hostname
733 Port = 0;
734 string::size_type Pos = Host.rfind(':');
735 if (Pos == string::npos)
736 return;
737
738 Port = atoi(string(Host,Pos+1).c_str());
739 Host = string(Host,0,Pos);
740}
741 /*}}}*/
742// URI::operator string - Convert the URI to a string /*{{{*/
743// ---------------------------------------------------------------------
744/* */
745URI::operator string()
746{
747 string Res = Access + ':';
748 if (Host.empty() == false)
749 {
492f957a 750 Res += "//";
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751 if (User.empty() == false)
752 {
753 Res += "//" + User;
754 if (Password.empty() == false)
755 Res += ":" + Password;
756 Res += "@";
757 }
758 Res += Host;
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759 if (Port != 0)
760 {
761 char S[30];
762 sprintf(S,":%u",Port);
763 Res += S;
764 }
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765 }
766
767 if (Path.empty() == false)
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768 {
769 if (Path[0] != '/')
770 Res += "/" + Path;
771 else
772 Res += Path;
773 }
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774
775 return Res;
776}
777 /*}}}*/