2 * Copyright (c) 1987-2011 by the citadel.org team
4 * This program is open source software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <sys/select.h>
28 #include <sys/types.h>
29 #define SHOW_ME_VAPPEND_PRINTF
31 #include "libcitadel.h"
43 int ZEXPORT compress_gzip(Bytef * dest, size_t * destLen,
44 const Bytef * source, uLong sourceLen, int level);
46 int BaseStrBufSize = 64;
48 const char *StrBufNOTNULL = ((char*) NULL) - 1;
50 const char HexList[256][3] = {
51 "00","01","02","03","04","05","06","07","08","09","0A","0B","0C","0D","0E","0F",
52 "10","11","12","13","14","15","16","17","18","19","1A","1B","1C","1D","1E","1F",
53 "20","21","22","23","24","25","26","27","28","29","2A","2B","2C","2D","2E","2F",
54 "30","31","32","33","34","35","36","37","38","39","3A","3B","3C","3D","3E","3F",
55 "40","41","42","43","44","45","46","47","48","49","4A","4B","4C","4D","4E","4F",
56 "50","51","52","53","54","55","56","57","58","59","5A","5B","5C","5D","5E","5F",
57 "60","61","62","63","64","65","66","67","68","69","6A","6B","6C","6D","6E","6F",
58 "70","71","72","73","74","75","76","77","78","79","7A","7B","7C","7D","7E","7F",
59 "80","81","82","83","84","85","86","87","88","89","8A","8B","8C","8D","8E","8F",
60 "90","91","92","93","94","95","96","97","98","99","9A","9B","9C","9D","9E","9F",
61 "A0","A1","A2","A3","A4","A5","A6","A7","A8","A9","AA","AB","AC","AD","AE","AF",
62 "B0","B1","B2","B3","B4","B5","B6","B7","B8","B9","BA","BB","BC","BD","BE","BF",
63 "C0","C1","C2","C3","C4","C5","C6","C7","C8","C9","CA","CB","CC","CD","CE","CF",
64 "D0","D1","D2","D3","D4","D5","D6","D7","D8","D9","DA","DB","DC","DD","DE","DF",
65 "E0","E1","E2","E3","E4","E5","E6","E7","E8","E9","EA","EB","EC","ED","EE","EF",
66 "F0","F1","F2","F3","F4","F5","F6","F7","F8","F9","FA","FB","FC","FD","FE","FF"};
69 * @defgroup StrBuf Stringbuffer, A class for manipulating strings with dynamic buffers
70 * StrBuf is a versatile class, aiding the handling of dynamic strings
71 * * reduce de/reallocations
72 * * reduce the need to remeasure it
73 * * reduce scanning over the string (in @ref StrBuf_NextTokenizer "Tokenizers")
74 * * allow asyncroneous IO for line and Blob based operations
75 * * reduce the use of memove in those
76 * * Quick filling in several operations with append functions
80 * @defgroup StrBuf_DeConstructors Create/Destroy StrBufs
85 * @defgroup StrBuf_Cast Cast operators to interact with char* based code
87 * use these operators to interfere with code demanding char*;
88 * if you need to own the content, smash me. Avoid, since we loose the length information.
92 * @defgroup StrBuf_Filler Create/Replace/Append Content into a StrBuf
94 * operations to get your Strings into a StrBuf, manipulating them, or appending
97 * @defgroup StrBuf_NextTokenizer Fast tokenizer to pull tokens in sequence
99 * Quick tokenizer; demands of the user to pull its tokens in sequence
103 * @defgroup StrBuf_Tokenizer tokenizer Functions; Slow ones.
105 * versatile tokenizer; random access to tokens, but slower; Prefer the @ref StrBuf_NextTokenizer "Next Tokenizer"
109 * @defgroup StrBuf_BufferedIO Buffered IO with Asynchroneous reads and no unneeded memmoves (the fast ones)
111 * File IO to fill StrBufs; Works with work-buffer shared across several calls;
112 * External Cursor to maintain the current read position inside of the buffer
113 * the non-fast ones will use memove to keep the start of the buffer the read buffer (which is slower)
117 * @defgroup StrBuf_IO FileIO; Prefer @ref StrBuf_BufferedIO
123 * @defgroup StrBuf_DeEnCoder functions to translate the contents of a buffer
125 * these functions translate the content of a buffer into another representation;
126 * some are combined Fillers and encoders
130 * Private Structure for the Stringbuffer
133 char *buf; /**< the pointer to the dynamic buffer */
134 long BufSize; /**< how many spcae do we optain */
135 long BufUsed; /**< StNumber of Chars used excluding the trailing \\0 */
136 int ConstBuf; /**< are we just a wrapper arround a static buffer and musn't we be changed? */
138 long nIncreases; /**< for profiling; cound how many times we needed more */
139 char bt [SIZ]; /**< Stacktrace of last increase */
140 char bt_lastinc [SIZ]; /**< How much did we increase last time? */
145 static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE);
146 static inline int Ctdl_IsUtf8SequenceStart(const char Char);
149 #ifdef HAVE_BACKTRACE
150 static void StrBufBacktrace(StrBuf *Buf, int which)
154 void *stack_frames[50];
159 pstart = pch = Buf->bt;
161 pstart = pch = Buf->bt_lastinc;
162 size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
163 strings = backtrace_symbols(stack_frames, size);
164 for (i = 0; i < size; i++) {
166 n = snprintf(pch, SIZ - (pch - pstart), "%s\\n", strings[i]);
168 n = snprintf(pch, SIZ - (pch - pstart), "%p\\n", stack_frames[i]);
177 void dbg_FreeStrBuf(StrBuf *FreeMe, char *FromWhere)
179 if (hFreeDbglog == -1){
180 pid_t pid = getpid();
182 snprintf(path, SIZ, "/tmp/libcitadel_strbuf_realloc.log.%d", pid);
183 hFreeDbglog = open(path, O_APPEND|O_CREAT|O_WRONLY);
185 if ((*FreeMe)->nIncreases > 0)
189 n = snprintf(buf, SIZ * 3, "%c+|%ld|%ld|%ld|%s|%s|\n",
191 (*FreeMe)->nIncreases,
195 (*FreeMe)->bt_lastinc);
196 n = write(hFreeDbglog, buf, n);
202 n = snprintf(buf, 128, "%c_|0|%ld%ld|\n",
206 n = write(hFreeDbglog, buf, n);
210 void dbg_IncreaseBuf(StrBuf *IncMe)
213 #ifdef HAVE_BACKTRACE
214 StrBufBacktrace(Buf, 1);
218 void dbg_Init(StrBuf *Buf)
222 Buf->bt_lastinc[0] = '\0';
223 #ifdef HAVE_BACKTRACE
224 StrBufBacktrace(Buf, 0);
230 #define dbg_FreeStrBuf(a, b)
231 #define dbg_IncreaseBuf(a)
238 * @brief swaps the contents of two StrBufs
239 * this is to be used to have cheap switched between a work-buffer and a target buffer
241 * @param B second one
243 static inline void SwapBuffers(StrBuf *A, StrBuf *B)
247 memcpy(&C, A, sizeof(*A));
248 memcpy(A, B, sizeof(*B));
249 memcpy(B, &C, sizeof(C));
254 * @ingroup StrBuf_Cast
255 * @brief Cast operator to Plain String
256 * @note if the buffer is altered by StrBuf operations, this pointer may become
257 * invalid. So don't lean on it after altering the buffer!
258 * Since this operation is considered cheap, rather call it often than risking
259 * your pointer to become invalid!
260 * @param Str the string we want to get the c-string representation for
261 * @returns the Pointer to the Content. Don't mess with it!
263 inline const char *ChrPtr(const StrBuf *Str)
271 * @ingroup StrBuf_Cast
272 * @brief since we know strlen()'s result, provide it here.
273 * @param Str the string to return the length to
274 * @returns contentlength of the buffer
276 inline int StrLength(const StrBuf *Str)
278 return (Str != NULL) ? Str->BufUsed : 0;
282 * @ingroup StrBuf_DeConstructors
283 * @brief local utility function to resize the buffer
284 * @param Buf the buffer whichs storage we should increase
285 * @param KeepOriginal should we copy the original buffer or just start over with a new one
286 * @param DestSize what should fit in after?
288 static int IncreaseBuf(StrBuf *Buf, int KeepOriginal, int DestSize)
291 size_t NewSize = Buf->BufSize * 2;
297 while (NewSize <= DestSize)
300 NewBuf= (char*) malloc(NewSize);
304 if (KeepOriginal && (Buf->BufUsed > 0))
306 memcpy(NewBuf, Buf->buf, Buf->BufUsed);
315 Buf->BufSize = NewSize;
317 dbg_IncreaseBuf(Buf);
323 * @ingroup StrBuf_DeConstructors
324 * @brief shrink / increase an _EMPTY_ buffer to NewSize. Buffercontent is thoroughly ignored and flushed.
325 * @param Buf Buffer to shrink (has to be empty)
326 * @param ThreshHold if the buffer is bigger then this, its readjusted
327 * @param NewSize if we Shrink it, how big are we going to be afterwards?
329 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize)
332 (Buf->BufUsed == 0) &&
333 (Buf->BufSize < ThreshHold)) {
335 Buf->buf = (char*) malloc(NewSize);
337 Buf->BufSize = NewSize;
342 * @ingroup StrBuf_DeConstructors
343 * @brief shrink long term buffers to their real size so they don't waste memory
344 * @param Buf buffer to shrink
345 * @param Force if not set, will just executed if the buffer is much to big; set for lifetime strings
346 * @returns physical size of the buffer
348 long StrBufShrinkToFit(StrBuf *Buf, int Force)
353 (Buf->BufUsed + (Buf->BufUsed / 3) > Buf->BufSize))
355 char *TmpBuf = (char*) malloc(Buf->BufUsed + 1);
356 memcpy (TmpBuf, Buf->buf, Buf->BufUsed + 1);
357 Buf->BufSize = Buf->BufUsed + 1;
365 * @ingroup StrBuf_DeConstructors
366 * @brief Allocate a new buffer with default buffer size
367 * @returns the new stringbuffer
369 StrBuf* NewStrBuf(void)
373 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
374 NewBuf->buf = (char*) malloc(BaseStrBufSize);
375 NewBuf->buf[0] = '\0';
376 NewBuf->BufSize = BaseStrBufSize;
378 NewBuf->ConstBuf = 0;
386 * @ingroup StrBuf_DeConstructors
387 * @brief Copy Constructor; returns a duplicate of CopyMe
388 * @param CopyMe Buffer to faxmilate
389 * @returns the new stringbuffer
391 StrBuf* NewStrBufDup(const StrBuf *CopyMe)
398 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
399 NewBuf->buf = (char*) malloc(CopyMe->BufSize);
400 memcpy(NewBuf->buf, CopyMe->buf, CopyMe->BufUsed + 1);
401 NewBuf->BufUsed = CopyMe->BufUsed;
402 NewBuf->BufSize = CopyMe->BufSize;
403 NewBuf->ConstBuf = 0;
411 * @ingroup StrBuf_DeConstructors
412 * @brief Copy Constructor; CreateRelpaceMe will contain CopyFlushMe afterwards.
413 * @param NoMe if non-NULL, we will use that buffer as value; KeepOriginal will abused as len.
414 * @param CopyFlushMe Buffer to faxmilate if KeepOriginal, or to move into CreateRelpaceMe if !KeepOriginal.
415 * @param CreateRelpaceMe If NULL, will be created, else Flushed and filled CopyFlushMe
416 * @param KeepOriginal should CopyFlushMe remain intact? or may we Steal its buffer?
417 * @returns the new stringbuffer
419 void NewStrBufDupAppendFlush(StrBuf **CreateRelpaceMe, StrBuf *CopyFlushMe, const char *NoMe, int KeepOriginal)
423 if (CreateRelpaceMe == NULL)
428 if (*CreateRelpaceMe != NULL)
429 StrBufPlain(*CreateRelpaceMe, NoMe, KeepOriginal);
431 *CreateRelpaceMe = NewStrBufPlain(NoMe, KeepOriginal);
435 if (CopyFlushMe == NULL)
437 if (*CreateRelpaceMe != NULL)
438 FlushStrBuf(*CreateRelpaceMe);
440 *CreateRelpaceMe = NewStrBuf();
445 * Randomly Chosen: bigger than 64 chars is cheaper to swap the buffers instead of copying.
446 * else *CreateRelpaceMe may use more memory than needed in a longer term, CopyFlushMe might
447 * be a big IO-Buffer...
449 if (KeepOriginal || (StrLength(CopyFlushMe) < 256))
451 if (*CreateRelpaceMe == NULL)
453 *CreateRelpaceMe = NewBuf = NewStrBufPlain(NULL, CopyFlushMe->BufUsed);
458 NewBuf = *CreateRelpaceMe;
461 StrBufAppendBuf(NewBuf, CopyFlushMe, 0);
465 if (*CreateRelpaceMe == NULL)
467 *CreateRelpaceMe = NewBuf = NewStrBufPlain(NULL, CopyFlushMe->BufUsed);
471 NewBuf = *CreateRelpaceMe;
472 SwapBuffers (NewBuf, CopyFlushMe);
475 FlushStrBuf(CopyFlushMe);
480 * @ingroup StrBuf_DeConstructors
481 * @brief create a new Buffer using an existing c-string
482 * this function should also be used if you want to pre-suggest
483 * the buffer size to allocate in conjunction with ptr == NULL
484 * @param ptr the c-string to copy; may be NULL to create a blank instance
485 * @param nChars How many chars should we copy; -1 if we should measure the length ourselves
486 * @returns the new stringbuffer
488 StrBuf* NewStrBufPlain(const char* ptr, int nChars)
491 size_t Siz = BaseStrBufSize;
494 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
496 CopySize = strlen((ptr != NULL)?ptr:"");
500 while (Siz <= CopySize)
503 NewBuf->buf = (char*) malloc(Siz);
504 if (NewBuf->buf == NULL)
509 NewBuf->BufSize = Siz;
511 memcpy(NewBuf->buf, ptr, CopySize);
512 NewBuf->buf[CopySize] = '\0';
513 NewBuf->BufUsed = CopySize;
516 NewBuf->buf[0] = '\0';
519 NewBuf->ConstBuf = 0;
527 * @ingroup StrBuf_DeConstructors
528 * @brief Set an existing buffer from a c-string
529 * @param Buf buffer to load
530 * @param ptr c-string to put into
531 * @param nChars set to -1 if we should work 0-terminated
532 * @returns the new length of the string
534 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars)
549 CopySize = strlen(ptr);
553 while (Siz <= CopySize)
556 if (Siz != Buf->BufSize)
557 IncreaseBuf(Buf, 0, Siz);
558 memcpy(Buf->buf, ptr, CopySize);
559 Buf->buf[CopySize] = '\0';
560 Buf->BufUsed = CopySize;
567 * @ingroup StrBuf_DeConstructors
568 * @brief use strbuf as wrapper for a string constant for easy handling
569 * @param StringConstant a string to wrap
570 * @param SizeOfStrConstant should be sizeof(StringConstant)-1
572 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant)
576 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
577 NewBuf->buf = (char*) StringConstant;
578 NewBuf->BufSize = SizeOfStrConstant;
579 NewBuf->BufUsed = SizeOfStrConstant;
580 NewBuf->ConstBuf = 1;
589 * @ingroup StrBuf_DeConstructors
590 * @brief flush the content of a Buf; keep its struct
591 * @param buf Buffer to flush
593 int FlushStrBuf(StrBuf *buf)
605 * @ingroup StrBuf_DeConstructors
606 * @brief wipe the content of a Buf thoroughly (overwrite it -> expensive); keep its struct
607 * @param buf Buffer to wipe
609 int FLUSHStrBuf(StrBuf *buf)
615 if (buf->BufUsed > 0) {
616 memset(buf->buf, 0, buf->BufUsed);
623 int hFreeDbglog = -1;
626 * @ingroup StrBuf_DeConstructors
627 * @brief Release a Buffer
628 * Its a double pointer, so it can NULL your pointer
629 * so fancy SIG11 appear instead of random results
630 * @param FreeMe Pointer Pointer to the buffer to free
632 void FreeStrBuf (StrBuf **FreeMe)
637 dbg_FreeStrBuf(FreeMe, 'F');
639 if (!(*FreeMe)->ConstBuf)
640 free((*FreeMe)->buf);
646 * @ingroup StrBuf_DeConstructors
647 * @brief flatten a Buffer to the Char * we return
648 * Its a double pointer, so it can NULL your pointer
649 * so fancy SIG11 appear instead of random results
650 * The Callee then owns the buffer and is responsible for freeing it.
651 * @param SmashMe Pointer Pointer to the buffer to release Buf from and free
652 * @returns the pointer of the buffer; Callee owns the memory thereafter.
654 char *SmashStrBuf (StrBuf **SmashMe)
658 if ((SmashMe == NULL) || (*SmashMe == NULL))
661 dbg_FreeStrBuf(SmashMe, 'S');
663 Ret = (*SmashMe)->buf;
670 * @ingroup StrBuf_DeConstructors
671 * @brief Release the buffer
672 * If you want put your StrBuf into a Hash, use this as Destructor.
673 * @param VFreeMe untyped pointer to a StrBuf. be shure to do the right thing [TM]
675 void HFreeStrBuf (void *VFreeMe)
677 StrBuf *FreeMe = (StrBuf*)VFreeMe;
681 dbg_FreeStrBuf(SmashMe, 'H');
683 if (!FreeMe->ConstBuf)
689 /*******************************************************************************
690 * Simple string transformations *
691 *******************************************************************************/
695 * @brief Wrapper around atol
697 long StrTol(const StrBuf *Buf)
702 return atol(Buf->buf);
709 * @brief Wrapper around atoi
711 int StrToi(const StrBuf *Buf)
715 if (Buf->BufUsed > 0)
716 return atoi(Buf->buf);
723 * @brief Checks to see if the string is a pure number
724 * @param Buf The buffer to inspect
725 * @returns 1 if its a pure number, 0, if not.
727 int StrBufIsNumber(const StrBuf *Buf) {
729 if ((Buf == NULL) || (Buf->BufUsed == 0)) {
732 strtoll(Buf->buf, &pEnd, 10);
733 if (pEnd == Buf->buf)
735 if ((pEnd != NULL) && (pEnd == Buf->buf + Buf->BufUsed))
737 if (Buf->buf == pEnd)
743 * @ingroup StrBuf_Filler
744 * @brief modifies a Single char of the Buf
745 * You can point to it via char* or a zero-based integer
746 * @param Buf The buffer to manipulate
747 * @param ptr char* to zero; use NULL if unused
748 * @param nThChar zero based pointer into the string; use -1 if unused
749 * @param PeekValue The Character to place into the position
751 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue)
756 nThChar = ptr - Buf->buf;
757 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
759 Buf->buf[nThChar] = PeekValue;
764 * @ingroup StrBuf_Filler
765 * @brief modifies a range of chars of the Buf
766 * You can point to it via char* or a zero-based integer
767 * @param Buf The buffer to manipulate
768 * @param ptr char* to zero; use NULL if unused
769 * @param nThChar zero based pointer into the string; use -1 if unused
770 * @param nChars how many chars are to be flushed?
771 * @param PookValue The Character to place into that area
773 long StrBufPook(StrBuf *Buf, const char* ptr, long nThChar, long nChars, char PookValue)
778 nThChar = ptr - Buf->buf;
779 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
781 if (nThChar + nChars > Buf->BufUsed)
782 nChars = Buf->BufUsed - nThChar;
784 memset(Buf->buf + nThChar, PookValue, nChars);
785 /* just to be shure... */
786 Buf->buf[Buf->BufUsed] = 0;
791 * @ingroup StrBuf_Filler
792 * @brief Append a StringBuffer to the buffer
793 * @param Buf Buffer to modify
794 * @param AppendBuf Buffer to copy at the end of our buffer
795 * @param Offset Should we start copying from an offset?
797 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset)
799 if ((AppendBuf == NULL) || (Buf == NULL) || (AppendBuf->buf == NULL))
802 if (Buf->BufSize - Offset < AppendBuf->BufUsed + Buf->BufUsed + 1)
805 AppendBuf->BufUsed + Buf->BufUsed);
807 memcpy(Buf->buf + Buf->BufUsed,
808 AppendBuf->buf + Offset,
809 AppendBuf->BufUsed - Offset);
810 Buf->BufUsed += AppendBuf->BufUsed - Offset;
811 Buf->buf[Buf->BufUsed] = '\0';
816 * @ingroup StrBuf_Filler
817 * @brief Append a C-String to the buffer
818 * @param Buf Buffer to modify
819 * @param AppendBuf Buffer to copy at the end of our buffer
820 * @param AppendSize number of bytes to copy; set to -1 if we should count it in advance
821 * @param Offset Should we start copying from an offset?
823 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset)
826 long BufSizeRequired;
828 if ((AppendBuf == NULL) || (Buf == NULL))
832 aps = strlen(AppendBuf + Offset);
834 aps = AppendSize - Offset;
836 BufSizeRequired = Buf->BufUsed + aps + 1;
837 if (Buf->BufSize <= BufSizeRequired)
838 IncreaseBuf(Buf, (Buf->BufUsed > 0), BufSizeRequired);
840 memcpy(Buf->buf + Buf->BufUsed,
844 Buf->buf[Buf->BufUsed] = '\0';
848 * @ingroup StrBuf_Filler
849 * @brief sprintf like function appending the formated string to the buffer
850 * vsnprintf version to wrap into own calls
851 * @param Buf Buffer to extend by format and Params
852 * @param format printf alike format to add
853 * @param ap va_list containing the items for format
855 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap)
863 if ((Buf == NULL) || (format == NULL))
866 BufSize = Buf->BufSize;
867 nWritten = Buf->BufSize + 1;
868 Offset = Buf->BufUsed;
869 newused = Offset + nWritten;
871 while (newused >= BufSize) {
873 nWritten = vsnprintf(Buf->buf + Offset,
874 Buf->BufSize - Offset,
877 newused = Offset + nWritten;
878 if (newused >= Buf->BufSize) {
879 IncreaseBuf(Buf, 1, newused);
880 newused = Buf->BufSize + 1;
883 Buf->BufUsed = Offset + nWritten;
884 BufSize = Buf->BufSize;
891 * @ingroup StrBuf_Filler
892 * @brief sprintf like function appending the formated string to the buffer
893 * @param Buf Buffer to extend by format and Params
894 * @param format printf alike format to add
896 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...)
904 if ((Buf == NULL) || (format == NULL))
907 BufSize = Buf->BufSize;
908 nWritten = Buf->BufSize + 1;
909 Offset = Buf->BufUsed;
910 newused = Offset + nWritten;
912 while (newused >= BufSize) {
913 va_start(arg_ptr, format);
914 nWritten = vsnprintf(Buf->buf + Buf->BufUsed,
915 Buf->BufSize - Buf->BufUsed,
918 newused = Buf->BufUsed + nWritten;
919 if (newused >= Buf->BufSize) {
920 IncreaseBuf(Buf, 1, newused);
921 newused = Buf->BufSize + 1;
924 Buf->BufUsed += nWritten;
925 BufSize = Buf->BufSize;
932 * @ingroup StrBuf_Filler
933 * @brief sprintf like function putting the formated string into the buffer
934 * @param Buf Buffer to extend by format and Parameters
935 * @param format printf alike format to add
937 void StrBufPrintf(StrBuf *Buf, const char *format, ...)
942 if ((Buf == NULL) || (format == NULL))
945 nWritten = Buf->BufSize + 1;
946 while (nWritten >= Buf->BufSize) {
947 va_start(arg_ptr, format);
948 nWritten = vsnprintf(Buf->buf, Buf->BufSize, format, arg_ptr);
950 if (nWritten >= Buf->BufSize) {
951 IncreaseBuf(Buf, 0, 0);
952 nWritten = Buf->BufSize + 1;
955 Buf->BufUsed = nWritten ;
960 * @ingroup StrBuf_Filler
961 * @brief Callback for cURL to append the webserver reply to a buffer
962 * @param ptr pre-defined by the cURL API; see man 3 curl for mre info
963 * @param size pre-defined by the cURL API; see man 3 curl for mre info
964 * @param nmemb pre-defined by the cURL API; see man 3 curl for mre info
965 * @param stream pre-defined by the cURL API; see man 3 curl for mre info
967 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream)
976 StrBufAppendBufPlain(Target, ptr, size * nmemb, 0);
983 * @brief extracts a substring from Source into dest
984 * @param dest buffer to place substring into
985 * @param Source string to copy substring from
986 * @param Offset chars to skip from start
987 * @param nChars number of chars to copy
988 * @returns the number of chars copied; may be different from nChars due to the size of Source
990 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars)
993 if (Offset > Source->BufUsed)
999 if (Offset + nChars < Source->BufUsed)
1001 if (nChars >= dest->BufSize)
1002 IncreaseBuf(dest, 0, nChars + 1);
1003 memcpy(dest->buf, Source->buf + Offset, nChars);
1004 dest->BufUsed = nChars;
1005 dest->buf[dest->BufUsed] = '\0';
1008 NCharsRemain = Source->BufUsed - Offset;
1009 if (NCharsRemain >= dest->BufSize)
1010 IncreaseBuf(dest, 0, NCharsRemain + 1);
1011 memcpy(dest->buf, Source->buf + Offset, NCharsRemain);
1012 dest->BufUsed = NCharsRemain;
1013 dest->buf[dest->BufUsed] = '\0';
1014 return NCharsRemain;
1019 * @brief Cut nChars from the start of the string
1020 * @param Buf Buffer to modify
1021 * @param nChars how many chars should be skipped?
1023 void StrBufCutLeft(StrBuf *Buf, int nChars)
1025 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1026 if (nChars >= Buf->BufUsed) {
1030 memmove(Buf->buf, Buf->buf + nChars, Buf->BufUsed - nChars);
1031 Buf->BufUsed -= nChars;
1032 Buf->buf[Buf->BufUsed] = '\0';
1037 * @brief Cut the trailing n Chars from the string
1038 * @param Buf Buffer to modify
1039 * @param nChars how many chars should be trunkated?
1041 void StrBufCutRight(StrBuf *Buf, int nChars)
1043 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1044 if (nChars >= Buf->BufUsed) {
1048 Buf->BufUsed -= nChars;
1049 Buf->buf[Buf->BufUsed] = '\0';
1054 * @brief Cut the string after n Chars
1055 * @param Buf Buffer to modify
1056 * @param AfternChars after how many chars should we trunkate the string?
1057 * @param At if non-null and points inside of our string, cut it there.
1059 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At)
1061 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1063 AfternChars = At - Buf->buf;
1066 if ((AfternChars < 0) || (AfternChars >= Buf->BufUsed))
1068 Buf->BufUsed = AfternChars;
1069 Buf->buf[Buf->BufUsed] = '\0';
1075 * @brief Strip leading and trailing spaces from a string; with premeasured and adjusted length.
1076 * @param Buf the string to modify
1078 void StrBufTrim(StrBuf *Buf)
1081 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1083 while ((Buf->BufUsed > 0) &&
1084 isspace(Buf->buf[Buf->BufUsed - 1]))
1088 Buf->buf[Buf->BufUsed] = '\0';
1090 if (Buf->BufUsed == 0) return;
1092 while ((Buf->BufUsed > delta) && (isspace(Buf->buf[delta]))){
1095 if (delta > 0) StrBufCutLeft(Buf, delta);
1099 * @brief changes all spaces in the string (tab, linefeed...) to Blank (0x20)
1100 * @param Buf the string to modify
1102 void StrBufSpaceToBlank(StrBuf *Buf)
1106 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1109 pche = pch + Buf->BufUsed;
1118 void StrBufStripAllBut(StrBuf *Buf, char leftboundary, char rightboundary)
1126 pLeft = pBuff = Buf->buf;
1127 while (pBuff != NULL) {
1129 pBuff = strchr(pBuff, leftboundary);
1138 pRight = strchr(pBuff, rightboundary);
1140 StrBufCutAt(Buf, 0, pRight);
1142 StrBufCutLeft(Buf, pLeft - Buf->buf);
1147 * @ingroup StrBuf_Filler
1148 * @brief uppercase the contents of a buffer
1149 * @param Buf the buffer to translate
1151 void StrBufUpCase(StrBuf *Buf)
1155 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1158 pche = pch + Buf->BufUsed;
1159 while (pch < pche) {
1160 *pch = toupper(*pch);
1167 * @ingroup StrBuf_Filler
1168 * @brief lowercase the contents of a buffer
1169 * @param Buf the buffer to translate
1171 void StrBufLowerCase(StrBuf *Buf)
1175 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1178 pche = pch + Buf->BufUsed;
1179 while (pch < pche) {
1180 *pch = tolower(*pch);
1186 /*******************************************************************************
1187 * a tokenizer that kills, maims, and destroys *
1188 *******************************************************************************/
1191 * @ingroup StrBuf_Tokenizer
1192 * @brief Replace a token at a given place with a given length by another token with given length
1193 * @param Buf String where to work on
1194 * @param where where inside of the Buf is the search-token
1195 * @param HowLong How long is the token to be replaced
1196 * @param Repl Token to insert at 'where'
1197 * @param ReplLen Length of repl
1198 * @returns -1 if fail else length of resulting Buf
1200 int StrBufReplaceToken(StrBuf *Buf, long where, long HowLong,
1201 const char *Repl, long ReplLen)
1204 if ((Buf == NULL) ||
1205 (where > Buf->BufUsed) ||
1206 (where + HowLong > Buf->BufUsed))
1209 if (where + ReplLen - HowLong > Buf->BufSize)
1210 if (IncreaseBuf(Buf, 1, Buf->BufUsed + ReplLen) < 0)
1213 memmove(Buf->buf + where + ReplLen,
1214 Buf->buf + where + HowLong,
1215 Buf->BufUsed - where - HowLong);
1217 memcpy(Buf->buf + where,
1220 Buf->BufUsed += ReplLen - HowLong;
1222 return Buf->BufUsed;
1226 * @ingroup StrBuf_Tokenizer
1227 * @brief Counts the numbmer of tokens in a buffer
1228 * @param source String to count tokens in
1229 * @param tok Tokenizer char to count
1230 * @returns numbers of tokenizer chars found
1232 int StrBufNum_tokens(const StrBuf *source, char tok)
1236 if ((source == NULL) || (source->BufUsed == 0))
1238 if ((source->BufUsed == 1) && (*source->buf == tok))
1242 pche = pch + source->BufUsed;
1253 * @ingroup StrBuf_Tokenizer
1254 * @brief a string tokenizer
1255 * @param Source StringBuffer to read into
1256 * @param parmnum n'th Parameter to remove
1257 * @param separator tokenizer character
1258 * @returns -1 if not found, else length of token.
1260 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator)
1263 char *d, *s, *end; /* dest, source */
1266 /* Find desired @parameter */
1267 end = Source->buf + Source->BufUsed;
1269 while ((d <= end) &&
1272 /* End of string, bail! */
1277 if (*d == separator) {
1282 if ((d == NULL) || (d >= end))
1283 return 0; /* @Parameter not found */
1285 /* Find next @parameter */
1287 while ((s <= end) &&
1288 (*s && *s != separator))
1292 if (*s == separator)
1296 /* Hack and slash */
1301 memmove(d, s, Source->BufUsed - (s - Source->buf));
1302 Source->BufUsed += ReducedBy;
1303 Source->buf[Source->BufUsed] = '\0';
1305 else if (d == Source->buf) {
1307 Source->BufUsed = 0;
1311 Source->BufUsed += ReducedBy;
1324 * @ingroup StrBuf_Tokenizer
1325 * @brief a string tokenizer
1326 * @param dest Destination StringBuffer
1327 * @param Source StringBuffer to read into
1328 * @param parmnum n'th Parameter to extract
1329 * @param separator tokenizer character
1330 * @returns -1 if not found, else length of token.
1332 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator)
1334 const char *s, *e; //* source * /
1335 int len = 0; //* running total length of extracted string * /
1336 int current_token = 0; //* token currently being processed * /
1339 dest->buf[0] = '\0';
1345 if ((Source == NULL) || (Source->BufUsed ==0)) {
1349 e = s + Source->BufUsed;
1352 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1354 while ((s<e) && !IsEmptyStr(s)) {
1355 if (*s == separator) {
1358 if (len >= dest->BufSize) {
1359 dest->BufUsed = len;
1360 if (IncreaseBuf(dest, 1, -1) < 0) {
1365 if ( (current_token == parmnum) &&
1366 (*s != separator)) {
1367 dest->buf[len] = *s;
1370 else if (current_token > parmnum) {
1376 dest->buf[len] = '\0';
1377 dest->BufUsed = len;
1379 if (current_token < parmnum) {
1380 //lprintf (CTDL_DEBUG,"test <!: %s\n", dest);
1383 //lprintf (CTDL_DEBUG,"test <: %d; %s\n", len, dest);
1392 * @ingroup StrBuf_Tokenizer
1393 * @brief a string tokenizer to fetch an integer
1394 * @param Source String containing tokens
1395 * @param parmnum n'th Parameter to extract
1396 * @param separator tokenizer character
1397 * @returns 0 if not found, else integer representation of the token
1399 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator)
1409 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1416 * @ingroup StrBuf_Tokenizer
1417 * @brief a string tokenizer to fetch a long integer
1418 * @param Source String containing tokens
1419 * @param parmnum n'th Parameter to extract
1420 * @param separator tokenizer character
1421 * @returns 0 if not found, else long integer representation of the token
1423 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator)
1433 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1441 * @ingroup StrBuf_Tokenizer
1442 * @brief a string tokenizer to fetch an unsigned long
1443 * @param Source String containing tokens
1444 * @param parmnum n'th Parameter to extract
1445 * @param separator tokenizer character
1446 * @returns 0 if not found, else unsigned long representation of the token
1448 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator)
1459 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0) {
1463 return (unsigned long) atol(pnum);
1472 * @ingroup StrBuf_NextTokenizer
1473 * @brief a string tokenizer; Bounds checker
1474 * function to make shure whether StrBufExtract_NextToken and friends have reached the end of the string.
1475 * @param Source our tokenbuffer
1476 * @param pStart the token iterator pointer to inspect
1477 * @returns whether the revolving pointer is inside of the search range
1479 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart)
1481 if ((Source == NULL) ||
1482 (*pStart == StrBufNOTNULL) ||
1483 (Source->BufUsed == 0))
1487 if (*pStart == NULL)
1491 else if (*pStart > Source->buf + Source->BufUsed)
1495 else if (*pStart <= Source->buf)
1504 * @ingroup StrBuf_NextTokenizer
1505 * @brief a string tokenizer
1506 * @param dest Destination StringBuffer
1507 * @param Source StringBuffer to read into
1508 * @param pStart pointer to the end of the last token. Feed with NULL on start.
1509 * @param separator tokenizer
1510 * @returns -1 if not found, else length of token.
1512 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator)
1514 const char *s; /* source */
1515 const char *EndBuffer; /* end stop of source buffer */
1516 int current_token = 0; /* token currently being processed */
1517 int len = 0; /* running total length of extracted string */
1519 if ((Source == NULL) ||
1520 (Source->BufUsed == 0) )
1522 *pStart = StrBufNOTNULL;
1526 EndBuffer = Source->buf + Source->BufUsed;
1530 dest->buf[0] = '\0';
1535 *pStart = EndBuffer + 1;
1539 if (*pStart == NULL)
1541 *pStart = Source->buf; /* we're starting to examine this buffer. */
1543 else if ((*pStart < Source->buf) ||
1544 (*pStart > EndBuffer ) )
1546 return -1; /* no more tokens to find. */
1550 /* start to find the next token */
1551 while ((s <= EndBuffer) &&
1552 (current_token == 0) )
1554 if (*s == separator)
1556 /* we found the next token */
1560 if (len >= dest->BufSize)
1562 /* our Dest-buffer isn't big enough, increase it. */
1563 dest->BufUsed = len;
1565 if (IncreaseBuf(dest, 1, -1) < 0) {
1566 /* WHUT? no more mem? bail out. */
1573 if ( (current_token == 0 ) && /* are we in our target token? */
1574 (!IsEmptyStr(s) ) &&
1575 (separator != *s) ) /* don't copy the token itself */
1577 dest->buf[len] = *s; /* Copy the payload */
1578 ++len; /* remember the bigger size. */
1584 /* did we reach the end? */
1585 if ((s > EndBuffer)) {
1586 EndBuffer = StrBufNOTNULL;
1587 *pStart = EndBuffer;
1590 *pStart = s; /* remember the position for the next run */
1593 /* sanitize our extracted token */
1594 dest->buf[len] = '\0';
1595 dest->BufUsed = len;
1602 * @ingroup StrBuf_NextTokenizer
1603 * @brief a string tokenizer
1604 * @param Source StringBuffer to read from
1605 * @param pStart pointer to the end of the last token. Feed with NULL.
1606 * @param separator tokenizer character
1607 * @param nTokens number of tokens to fastforward over
1608 * @returns -1 if not found, else length of token.
1610 int StrBufSkip_NTokenS(const StrBuf *Source, const char **pStart, char separator, int nTokens)
1612 const char *s, *EndBuffer; //* source * /
1613 int len = 0; //* running total length of extracted string * /
1614 int current_token = 0; //* token currently being processed * /
1616 if ((Source == NULL) ||
1617 (Source->BufUsed ==0)) {
1621 return Source->BufUsed;
1623 if (*pStart == NULL)
1624 *pStart = Source->buf;
1626 EndBuffer = Source->buf + Source->BufUsed;
1628 if ((*pStart < Source->buf) ||
1629 (*pStart > EndBuffer)) {
1637 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1639 while ((s<EndBuffer) && !IsEmptyStr(s)) {
1640 if (*s == separator) {
1643 if (current_token >= nTokens) {
1655 * @ingroup StrBuf_NextTokenizer
1656 * @brief a string tokenizer to fetch an integer
1657 * @param Source StringBuffer to read from
1658 * @param pStart Cursor on the tokenstring
1659 * @param separator tokenizer character
1660 * @returns 0 if not found, else integer representation of the token
1662 int StrBufExtractNext_int(const StrBuf* Source, const char **pStart, char separator)
1672 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0)
1679 * @ingroup StrBuf_NextTokenizer
1680 * @brief a string tokenizer to fetch a long integer
1681 * @param Source StringBuffer to read from
1682 * @param pStart Cursor on the tokenstring
1683 * @param separator tokenizer character
1684 * @returns 0 if not found, else long integer representation of the token
1686 long StrBufExtractNext_long(const StrBuf* Source, const char **pStart, char separator)
1696 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0)
1704 * @ingroup StrBuf_NextTokenizer
1705 * @brief a string tokenizer to fetch an unsigned long
1706 * @param Source StringBuffer to read from
1707 * @param pStart Cursor on the tokenstring
1708 * @param separator tokenizer character
1709 * @returns 0 if not found, else unsigned long representation of the token
1711 unsigned long StrBufExtractNext_unsigned_long(const StrBuf* Source, const char **pStart, char separator)
1722 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0) {
1726 return (unsigned long) atol(pnum);
1736 /*******************************************************************************
1737 * Escape Appending *
1738 *******************************************************************************/
1741 * @ingroup StrBuf_DeEnCoder
1742 * @brief Escape a string for feeding out as a URL while appending it to a Buffer
1743 * @param OutBuf the output buffer
1744 * @param In Buffer to encode
1745 * @param PlainIn way in from plain old c strings
1747 void StrBufUrlescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn)
1749 const char *pch, *pche;
1753 if (((In == NULL) && (PlainIn == NULL)) || (OutBuf == NULL) )
1755 if (PlainIn != NULL) {
1756 len = strlen(PlainIn);
1762 pche = pch + In->BufUsed;
1769 pt = OutBuf->buf + OutBuf->BufUsed;
1770 pte = OutBuf->buf + OutBuf->BufSize - 4; /**< we max append 3 chars at once plus the \0 */
1772 while (pch < pche) {
1774 IncreaseBuf(OutBuf, 1, -1);
1775 pte = OutBuf->buf + OutBuf->BufSize - 4; /**< we max append 3 chars at once plus the \0 */
1776 pt = OutBuf->buf + OutBuf->BufUsed;
1779 if((*pch >= 'a' && *pch <= 'z') ||
1780 (*pch >= '@' && *pch <= 'Z') || /* @ A-Z */
1781 (*pch >= '0' && *pch <= ':') || /* 0-9 : */
1782 (*pch == '!') || (*pch == '_') ||
1783 (*pch == ',') || (*pch == '.'))
1790 *(pt + 1) = HexList[(unsigned char)*pch][0];
1791 *(pt + 2) = HexList[(unsigned char)*pch][1];
1793 OutBuf->BufUsed += 3;
1801 * @ingroup StrBuf_DeEnCoder
1802 * @brief append a string in hex encoding to the buffer
1803 * @param OutBuf the output buffer
1804 * @param In Buffer to encode
1805 * @param PlainIn way in from plain old c strings
1807 void StrBufHexescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn)
1809 const char *pch, *pche;
1813 if (((In == NULL) && (PlainIn == NULL)) || (OutBuf == NULL) )
1815 if (PlainIn != NULL) {
1816 len = strlen(PlainIn);
1822 pche = pch + In->BufUsed;
1829 pt = OutBuf->buf + OutBuf->BufUsed;
1830 pte = OutBuf->buf + OutBuf->BufSize - 3; /**< we max append 3 chars at once plus the \0 */
1832 while (pch < pche) {
1834 IncreaseBuf(OutBuf, 1, -1);
1835 pte = OutBuf->buf + OutBuf->BufSize - 3; /**< we max append 3 chars at once plus the \0 */
1836 pt = OutBuf->buf + OutBuf->BufUsed;
1839 *pt = HexList[(unsigned char)*pch][0];
1841 *pt = HexList[(unsigned char)*pch][1];
1842 pt ++; pch ++; OutBuf->BufUsed += 2;
1848 * @ingroup StrBuf_DeEnCoder
1849 * @brief Append a string, escaping characters which have meaning in HTML.
1851 * @param Target target buffer
1852 * @param Source source buffer; set to NULL if you just have a C-String
1853 * @param PlainIn Plain-C string to append; set to NULL if unused
1854 * @param nbsp If nonzero, spaces are converted to non-breaking spaces.
1855 * @param nolinebreaks if set to 1, linebreaks are removed from the string.
1856 * if set to 2, linebreaks are replaced by <br/>
1858 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
1860 const char *aptr, *eiptr;
1864 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1867 if (PlainIn != NULL) {
1869 len = strlen(PlainIn);
1874 eiptr = aptr + Source->BufUsed;
1875 len = Source->BufUsed;
1881 bptr = Target->buf + Target->BufUsed;
1882 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
1884 while (aptr < eiptr){
1886 IncreaseBuf(Target, 1, -1);
1887 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
1888 bptr = Target->buf + Target->BufUsed;
1891 memcpy(bptr, "<", 4);
1893 Target->BufUsed += 4;
1895 else if (*aptr == '>') {
1896 memcpy(bptr, ">", 4);
1898 Target->BufUsed += 4;
1900 else if (*aptr == '&') {
1901 memcpy(bptr, "&", 5);
1903 Target->BufUsed += 5;
1905 else if (*aptr == '"') {
1906 memcpy(bptr, """, 6);
1908 Target->BufUsed += 6;
1910 else if (*aptr == '\'') {
1911 memcpy(bptr, "'", 5);
1913 Target->BufUsed += 5;
1915 else if (*aptr == LB) {
1920 else if (*aptr == RB) {
1925 else if (*aptr == QU) {
1930 else if ((*aptr == 32) && (nbsp == 1)) {
1931 memcpy(bptr, " ", 6);
1933 Target->BufUsed += 6;
1935 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
1936 *bptr='\0'; /* nothing */
1938 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
1939 memcpy(bptr, "<br/>", 11);
1941 Target->BufUsed += 11;
1945 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
1946 *bptr='\0'; /* nothing */
1956 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
1958 return Target->BufUsed;
1962 * @ingroup StrBuf_DeEnCoder
1963 * @brief Append a string, escaping characters which have meaning in HTML.
1964 * Converts linebreaks into blanks; escapes single quotes
1965 * @param Target target buffer
1966 * @param Source source buffer; set to NULL if you just have a C-String
1967 * @param PlainIn Plain-C string to append; set to NULL if unused
1969 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
1971 const char *aptr, *eiptr;
1975 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1978 if (PlainIn != NULL) {
1980 len = strlen(PlainIn);
1985 eiptr = aptr + Source->BufUsed;
1986 len = Source->BufUsed;
1992 eptr = Target->buf + Target->BufSize - 8;
1993 tptr = Target->buf + Target->BufUsed;
1995 while (aptr < eiptr){
1997 IncreaseBuf(Target, 1, -1);
1998 eptr = Target->buf + Target->BufSize - 8;
1999 tptr = Target->buf + Target->BufUsed;
2002 if (*aptr == '\n') {
2006 else if (*aptr == '\r') {
2010 else if (*aptr == '\'') {
2016 Target->BufUsed += 5;
2029 * @ingroup StrBuf_DeEnCoder
2030 * @brief Append a string, escaping characters which have meaning in ICAL.
2032 * @param Target target buffer
2033 * @param Source source buffer; set to NULL if you just have a C-String
2034 * @param PlainIn Plain-C string to append; set to NULL if unused
2036 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
2038 const char *aptr, *eiptr;
2042 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2045 if (PlainIn != NULL) {
2047 len = strlen(PlainIn);
2052 eiptr = aptr + Source->BufUsed;
2053 len = Source->BufUsed;
2059 eptr = Target->buf + Target->BufSize - 8;
2060 tptr = Target->buf + Target->BufUsed;
2062 while (aptr < eiptr){
2063 if(tptr + 3 >= eptr) {
2064 IncreaseBuf(Target, 1, -1);
2065 eptr = Target->buf + Target->BufSize - 8;
2066 tptr = Target->buf + Target->BufUsed;
2069 if (*aptr == '\n') {
2076 else if (*aptr == '\r') {
2083 else if (*aptr == ',') {
2099 * @ingroup StrBuf_DeEnCoder
2100 * @brief Append a string, escaping characters which have meaning in JavaScript strings .
2102 * @param Target target buffer
2103 * @param Source source buffer; set to NULL if you just have a C-String
2104 * @param PlainIn Plain-C string to append; set to NULL if unused
2105 * @returns size of result or -1
2107 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
2109 const char *aptr, *eiptr;
2113 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2116 if (PlainIn != NULL) {
2118 len = strlen(PlainIn);
2123 eiptr = aptr + Source->BufUsed;
2124 len = Source->BufUsed;
2130 bptr = Target->buf + Target->BufUsed;
2131 eptr = Target->buf + Target->BufSize - 3; /* our biggest unit to put in... */
2133 while (aptr < eiptr){
2135 IncreaseBuf(Target, 1, -1);
2136 eptr = Target->buf + Target->BufSize - 3;
2137 bptr = Target->buf + Target->BufUsed;
2144 Target->BufUsed += 2;
2145 } else if (*aptr == '\\') {
2150 Target->BufUsed += 2;
2160 if ((bptr == eptr - 1 ) && !IsEmptyStr(aptr) )
2162 return Target->BufUsed;
2166 * @ingroup StrBuf_DeEnCoder
2167 * @brief Append a string, escaping characters which have meaning in HTML + json.
2169 * @param Target target buffer
2170 * @param Source source buffer; set to NULL if you just have a C-String
2171 * @param PlainIn Plain-C string to append; set to NULL if unused
2172 * @param nbsp If nonzero, spaces are converted to non-breaking spaces.
2173 * @param nolinebreaks if set to 1, linebreaks are removed from the string.
2174 * if set to 2, linebreaks are replaced by <br/>
2176 long StrHtmlEcmaEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
2178 const char *aptr, *eiptr;
2181 int IsUtf8Sequence = 0;
2183 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2186 if (PlainIn != NULL) {
2188 len = strlen(PlainIn);
2193 eiptr = aptr + Source->BufUsed;
2194 len = Source->BufUsed;
2200 bptr = Target->buf + Target->BufUsed;
2201 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2203 while (aptr < eiptr){
2205 IncreaseBuf(Target, 1, -1);
2206 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2207 bptr = Target->buf + Target->BufUsed;
2210 memcpy(bptr, "<", 4);
2212 Target->BufUsed += 4;
2214 else if (*aptr == '>') {
2215 memcpy(bptr, ">", 4);
2217 Target->BufUsed += 4;
2219 else if (*aptr == '&') {
2220 memcpy(bptr, "&", 5);
2222 Target->BufUsed += 5;
2224 else if (*aptr == LB) {
2229 else if (*aptr == RB) {
2234 else if ((*aptr == 32) && (nbsp == 1)) {
2235 memcpy(bptr, " ", 6);
2237 Target->BufUsed += 6;
2239 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
2240 *bptr='\0'; /* nothing */
2242 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
2243 memcpy(bptr, "<br/>", 11);
2245 Target->BufUsed += 11;
2248 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
2249 *bptr='\0'; /* nothing */
2252 else if ((*aptr == '"') || (*aptr == QU)) {
2257 Target->BufUsed += 2;
2258 } else if (*aptr == '\\') {
2263 Target->BufUsed += 2;
2266 if (((unsigned char)*aptr) >= 0x20)
2268 IsUtf8Sequence = Ctdl_GetUtf8SequenceLength(aptr, eiptr);
2272 while (IsUtf8Sequence > 1){
2273 if(bptr + IsUtf8Sequence >= eptr) {
2274 IncreaseBuf(Target, 1, -1);
2275 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2276 bptr = Target->buf + Target->BufUsed - 1;
2290 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
2292 return Target->BufUsed;
2296 * @ingroup StrBuf_DeEnCoder
2297 * @brief unhide special chars hidden to the HTML escaper
2298 * @param target buffer to put the unescaped string in
2299 * @param source buffer to unescape
2301 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source)
2307 FlushStrBuf(target);
2309 if (source == NULL ||target == NULL)
2314 len = source->BufUsed;
2315 for (a = 0; a < len; ++a) {
2316 if (target->BufUsed >= target->BufSize)
2317 IncreaseBuf(target, 1, -1);
2319 if (source->buf[a] == '=') {
2320 hex[0] = source->buf[a + 1];
2321 hex[1] = source->buf[a + 2];
2324 sscanf(hex, "%02x", &b);
2325 target->buf[target->BufUsed] = b;
2326 target->buf[++target->BufUsed] = 0;
2330 target->buf[target->BufUsed] = source->buf[a];
2331 target->buf[++target->BufUsed] = 0;
2338 * @ingroup StrBuf_DeEnCoder
2339 * @brief hide special chars from the HTML escapers and friends
2340 * @param target buffer to put the escaped string in
2341 * @param source buffer to escape
2343 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source)
2348 FlushStrBuf(target);
2350 if (source == NULL ||target == NULL)
2355 len = source->BufUsed;
2356 for (i=0; i<len; ++i) {
2357 if (target->BufUsed + 4 >= target->BufSize)
2358 IncreaseBuf(target, 1, -1);
2359 if ( (isalnum(source->buf[i])) ||
2360 (source->buf[i]=='-') ||
2361 (source->buf[i]=='_') ) {
2362 target->buf[target->BufUsed++] = source->buf[i];
2365 sprintf(&target->buf[target->BufUsed],
2367 (0xFF &source->buf[i]));
2368 target->BufUsed += 3;
2371 target->buf[target->BufUsed + 1] = '\0';
2375 /*******************************************************************************
2376 * Quoted Printable de/encoding *
2377 *******************************************************************************/
2380 * @ingroup StrBuf_DeEnCoder
2381 * @brief decode a buffer from base 64 encoding; destroys original
2382 * @param Buf Buffor to transform
2384 int StrBufDecodeBase64(StrBuf *Buf)
2388 if (Buf == NULL) return -1;
2390 xferbuf = (char*) malloc(Buf->BufSize);
2392 siz = CtdlDecodeBase64(xferbuf,
2402 * @ingroup StrBuf_DeEnCoder
2403 * @brief decode a buffer from base 64 encoding; destroys original
2404 * @param Buf Buffor to transform
2406 int StrBufDecodeHex(StrBuf *Buf)
2409 char *pch, *pche, *pchi;
2411 if (Buf == NULL) return -1;
2413 pch = pchi = Buf->buf;
2414 pche = pch + Buf->BufUsed;
2416 while (pchi < pche){
2417 ch = decode_hex(pchi);
2424 Buf->BufUsed = pch - Buf->buf;
2425 return Buf->BufUsed;
2429 * @ingroup StrBuf_DeEnCoder
2430 * @brief replace all chars >0x20 && < 0x7F with Mute
2431 * @param Mute char to put over invalid chars
2432 * @param Buf Buffor to transform
2434 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute)
2438 if (Buf == NULL) return -1;
2439 pch = (unsigned char *)Buf->buf;
2440 while (pch < (unsigned char *)Buf->buf + Buf->BufUsed) {
2441 if ((*pch < 0x20) || (*pch > 0x7F))
2445 return Buf->BufUsed;
2450 * @ingroup StrBuf_DeEnCoder
2451 * @brief remove escaped strings from i.e. the url string (like %20 for blanks)
2452 * @param Buf Buffer to translate
2453 * @param StripBlanks Reduce several blanks to one?
2455 long StrBufUnescape(StrBuf *Buf, int StripBlanks)
2464 while ((Buf->BufUsed > 0) && (isspace(Buf->buf[Buf->BufUsed - 1]))){
2465 Buf->buf[Buf->BufUsed - 1] = '\0';
2470 while (a < Buf->BufUsed) {
2471 if (Buf->buf[a] == '+')
2473 else if (Buf->buf[a] == '%') {
2474 /* don't let % chars through, rather truncate the input. */
2475 if (a + 2 > Buf->BufUsed) {
2480 hex[0] = Buf->buf[a + 1];
2481 hex[1] = Buf->buf[a + 2];
2484 sscanf(hex, "%02x", &b);
2485 Buf->buf[a] = (char) b;
2486 len = Buf->BufUsed - a - 2;
2488 memmove(&Buf->buf[a + 1], &Buf->buf[a + 3], len);
2500 * @ingroup StrBuf_DeEnCoder
2501 * @brief RFC2047-encode a header field if necessary.
2502 * If no non-ASCII characters are found, the string
2503 * will be copied verbatim without encoding.
2505 * @param target Target buffer.
2506 * @param source Source string to be encoded.
2507 * @returns encoded length; -1 if non success.
2509 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source)
2511 const char headerStr[] = "=?UTF-8?Q?";
2512 int need_to_encode = 0;
2516 if ((source == NULL) ||
2520 while ((i < source->BufUsed) &&
2521 (!IsEmptyStr (&source->buf[i])) &&
2522 (need_to_encode == 0)) {
2523 if (((unsigned char) source->buf[i] < 32) ||
2524 ((unsigned char) source->buf[i] > 126)) {
2530 if (!need_to_encode) {
2531 if (*target == NULL) {
2532 *target = NewStrBufPlain(source->buf, source->BufUsed);
2535 FlushStrBuf(*target);
2536 StrBufAppendBuf(*target, source, 0);
2538 return (*target)->BufUsed;
2540 if (*target == NULL)
2541 *target = NewStrBufPlain(NULL, sizeof(headerStr) + source->BufUsed * 2);
2542 else if (sizeof(headerStr) + source->BufUsed >= (*target)->BufSize)
2543 IncreaseBuf(*target, sizeof(headerStr) + source->BufUsed, 0);
2544 memcpy ((*target)->buf, headerStr, sizeof(headerStr) - 1);
2545 (*target)->BufUsed = sizeof(headerStr) - 1;
2546 for (i=0; (i < source->BufUsed); ++i) {
2547 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2548 IncreaseBuf(*target, 1, 0);
2549 ch = (unsigned char) source->buf[i];
2550 if ((ch < 32) || (ch > 126) || (ch == 61)) {
2551 sprintf(&(*target)->buf[(*target)->BufUsed], "=%02X", ch);
2552 (*target)->BufUsed += 3;
2555 (*target)->buf[(*target)->BufUsed] = ch;
2556 (*target)->BufUsed++;
2560 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2561 IncreaseBuf(*target, 1, 0);
2563 (*target)->buf[(*target)->BufUsed++] = '?';
2564 (*target)->buf[(*target)->BufUsed++] = '=';
2565 (*target)->buf[(*target)->BufUsed] = '\0';
2566 return (*target)->BufUsed;;
2571 static void AddRecipient(StrBuf *Target,
2573 StrBuf *EmailAddress,
2578 if (StrLength(Target) > 0) StrBufAppendBufPlain(Target, HKEY(", "), 0);
2579 if (strchr(ChrPtr(UserName), ',') != NULL) QuoteMe = 1;
2581 if (QuoteMe) StrBufAppendBufPlain(Target, HKEY("\""), 0);
2582 StrBufRFC2047encode(&EncBuf, UserName);
2583 StrBufAppendBuf(Target, EncBuf, 0);
2584 if (QuoteMe) StrBufAppendBufPlain(Target, HKEY("\" "), 0);
2585 else StrBufAppendBufPlain(Target, HKEY(" "), 0);
2587 if (StrLength(EmailAddress) > 0){
2588 StrBufAppendBufPlain(Target, HKEY("<"), 0);
2589 StrBufAppendBuf(Target, EmailAddress, 0); /* TODO: what about IDN???? */
2590 StrBufAppendBufPlain(Target, HKEY(">"), 0);
2596 * \brief QP encode parts of an email TO/CC/BCC vector, and strip/filter invalid parts
2597 * \param Recp Source list of email recipients
2598 * \param UserName Temporary buffer for internal use; Please provide valid buffer.
2599 * \param EmailAddress Temporary buffer for internal use; Please provide valid buffer.
2600 * \param EncBuf Temporary buffer for internal use; Please provide valid buffer.
2601 * \returns encoded & sanitized buffer with the contents of Recp; Caller owns this memory.
2603 StrBuf *StrBufSanitizeEmailRecipientVector(const StrBuf *Recp,
2605 StrBuf *EmailAddress,
2611 const char *pch, *pche;
2612 const char *UserStart, *UserEnd, *EmailStart, *EmailEnd, *At;
2614 if ((Recp == NULL) || (StrLength(Recp) == 0))
2619 pche = pch + StrLength(Recp);
2621 if (!CheckEncode(pch, -1, pche))
2622 return NewStrBufDup(Recp);
2624 Target = NewStrBufPlain(NULL, StrLength(Recp));
2626 while ((pch != NULL) && (pch < pche))
2630 while (isspace(*pch)) pch++;
2631 UserStart = UserEnd = EmailStart = EmailEnd = NULL;
2633 if ((*pch == '"') || (*pch == '\'')) {
2634 UserStart = pch + 1;
2636 UserEnd = strchr(UserStart, *pch);
2637 if (UserEnd == NULL)
2638 break; ///TODO: Userfeedback??
2639 EmailStart = UserEnd + 1;
2640 while (isspace(*EmailStart))
2642 if (UserEnd == UserStart) {
2643 UserStart = UserEnd = NULL;
2646 if (*EmailStart == '<') {
2648 EmailEnd = strchr(EmailStart, '>');
2649 if (EmailEnd == NULL)
2650 EmailEnd = strchr(EmailStart, ',');
2654 EmailEnd = strchr(EmailStart, ',');
2656 if (EmailEnd == NULL)
2664 EmailEnd = strchr(UserStart, ',');
2665 if (EmailEnd == NULL) {
2666 EmailEnd = strchr(pch, '>');
2668 if (EmailEnd != NULL) {
2678 while ((EmailEnd > UserStart) && !gt &&
2679 ((*EmailEnd == ',') ||
2680 (*EmailEnd == '>') ||
2681 (isspace(*EmailEnd))))
2683 if (*EmailEnd == '>')
2688 if (EmailEnd == UserStart)
2692 EmailStart = strchr(UserStart, '<');
2693 if ((EmailStart == NULL) || (EmailStart > EmailEnd))
2695 UserEnd = EmailStart;
2697 while ((UserEnd > UserStart) &&
2698 isspace (*(UserEnd - 1)))
2701 if (UserStart >= UserEnd)
2702 UserStart = UserEnd = NULL;
2703 At = strchr(EmailStart, '@');
2705 else { /* this is a local recipient... no domain, just a realname */
2706 EmailStart = UserStart;
2707 At = strchr(EmailStart, '@');
2713 EmailStart = UserStart;
2719 if ((UserStart != NULL) && (UserEnd != NULL))
2720 StrBufPlain(UserName, UserStart, UserEnd - UserStart);
2721 else if ((UserStart != NULL) && (UserEnd == NULL))
2722 StrBufPlain(UserName, UserStart, UserEnd - UserStart);
2724 FlushStrBuf(UserName);
2726 if ((EmailStart != NULL) && (EmailEnd != NULL))
2727 StrBufPlain(EmailAddress, EmailStart, EmailEnd - EmailStart);
2728 else if ((EmailStart != NULL) && (EmailEnd == NULL))
2729 StrBufPlain(EmailAddress, EmailStart, EmailEnd - pche);
2731 FlushStrBuf(EmailAddress);
2733 AddRecipient(Target, UserName, EmailAddress, EncBuf);
2738 if ((pch != NULL) && (*pch == ','))
2740 if (pch != NULL) while (isspace(*pch))
2749 * @brief replaces all occurances of 'search' by 'replace'
2750 * @param buf Buffer to modify
2751 * @param search character to search
2752 * @param replace character to replace search by
2754 void StrBufReplaceChars(StrBuf *buf, char search, char replace)
2759 for (i=0; i<buf->BufUsed; i++)
2760 if (buf->buf[i] == search)
2761 buf->buf[i] = replace;
2767 * @brief removes all \r s from the string, or replaces them with \n if its not a combination of both.
2768 * @param buf Buffer to modify
2770 void StrBufToUnixLF(StrBuf *buf)
2772 char *pche, *pchS, *pchT;
2776 pche = buf->buf + buf->BufUsed;
2777 pchS = pchT = buf->buf;
2783 if (*pchS != '\n') {
2792 buf->BufUsed = pchT - buf->buf;
2796 /*******************************************************************************
2797 * Iconv Wrapper; RFC822 de/encoding *
2798 *******************************************************************************/
2801 * @ingroup StrBuf_DeEnCoder
2802 * @brief Wrapper around iconv_open()
2803 * Our version adds aliases for non-standard Microsoft charsets
2804 * such as 'MS950', aliasing them to names like 'CP950'
2806 * @param tocode Target encoding
2807 * @param fromcode Source encoding
2808 * @param pic anonimized pointer to iconv struct
2810 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic)
2813 iconv_t ic = (iconv_t)(-1) ;
2814 ic = iconv_open(tocode, fromcode);
2815 if (ic == (iconv_t)(-1) ) {
2816 char alias_fromcode[64];
2817 if ( (strlen(fromcode) == 5) && (!strncasecmp(fromcode, "MS", 2)) ) {
2818 safestrncpy(alias_fromcode, fromcode, sizeof alias_fromcode);
2819 alias_fromcode[0] = 'C';
2820 alias_fromcode[1] = 'P';
2821 ic = iconv_open(tocode, alias_fromcode);
2824 *(iconv_t *)pic = ic;
2830 * @ingroup StrBuf_DeEnCoder
2831 * @brief find one chunk of a RFC822 encoded string
2832 * @param Buffer where to search
2833 * @param bptr where to start searching
2834 * @returns found position, NULL if none.
2836 static inline const char *FindNextEnd (const StrBuf *Buf, const char *bptr)
2839 /* Find the next ?Q? */
2840 if (Buf->BufUsed - (bptr - Buf->buf) < 6)
2843 end = strchr(bptr + 2, '?');
2848 if ((Buf->BufUsed - (end - Buf->buf) > 3) &&
2849 (((*(end + 1) == 'B') || (*(end + 1) == 'Q')) ||
2850 ((*(end + 1) == 'b') || (*(end + 1) == 'q'))) &&
2851 (*(end + 2) == '?')) {
2852 /* skip on to the end of the cluster, the next ?= */
2853 end = strstr(end + 3, "?=");
2856 /* sort of half valid encoding, try to find an end. */
2857 end = strstr(bptr, "?=");
2864 * @ingroup StrBuf_DeEnCoder
2865 * @brief convert one buffer according to the preselected iconv pointer PIC
2866 * @param ConvertBuf buffer we need to translate
2867 * @param TmpBuf To share a workbuffer over several iterations. prepare to have it filled with useless stuff afterwards.
2868 * @param pic Pointer to the iconv-session Object
2870 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic)
2876 char *ibuf; /**< Buffer of characters to be converted */
2877 char *obuf; /**< Buffer for converted characters */
2878 size_t ibuflen; /**< Length of input buffer */
2879 size_t obuflen; /**< Length of output buffer */
2882 /* since we're converting to utf-8, one glyph may take up to 6 bytes */
2883 if (ConvertBuf->BufUsed * 6 >= TmpBuf->BufSize)
2884 IncreaseBuf(TmpBuf, 0, ConvertBuf->BufUsed * 6);
2886 ic = *(iconv_t*)pic;
2887 ibuf = ConvertBuf->buf;
2888 ibuflen = ConvertBuf->BufUsed;
2890 obuflen = TmpBuf->BufSize;
2892 siz = iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
2895 if (errno == E2BIG) {
2897 IncreaseBuf(TmpBuf, 0, 0);
2902 else if (errno == EILSEQ){
2903 /* hm, invalid utf8 sequence... what to do now? */
2904 /* An invalid multibyte sequence has been encountered in the input */
2906 else if (errno == EINVAL) {
2907 /* An incomplete multibyte sequence has been encountered in the input. */
2910 FlushStrBuf(TmpBuf);
2913 TmpBuf->BufUsed = TmpBuf->BufSize - obuflen;
2914 TmpBuf->buf[TmpBuf->BufUsed] = '\0';
2916 /* little card game: wheres the red lady? */
2917 SwapBuffers(ConvertBuf, TmpBuf);
2918 FlushStrBuf(TmpBuf);
2925 * @ingroup StrBuf_DeEnCoder
2926 * @brief catches one RFC822 encoded segment, and decodes it.
2927 * @param Target buffer to fill with result
2928 * @param DecodeMe buffer with stuff to process
2929 * @param SegmentStart points to our current segment in DecodeMe
2930 * @param SegmentEnd Points to the end of our current segment in DecodeMe
2931 * @param ConvertBuf Workbuffer shared between several iterations. Random content; needs to be valid
2932 * @param ConvertBuf2 Workbuffer shared between several iterations. Random content; needs to be valid
2933 * @param FoundCharset Characterset to default decoding to; if we find another we will overwrite it.
2935 inline static void DecodeSegment(StrBuf *Target,
2936 const StrBuf *DecodeMe,
2937 const char *SegmentStart,
2938 const char *SegmentEnd,
2940 StrBuf *ConvertBuf2,
2941 StrBuf *FoundCharset)
2947 iconv_t ic = (iconv_t)(-1);
2951 /* Now we handle foreign character sets properly encoded
2952 * in RFC2047 format.
2954 StaticBuf.buf = (char*) SegmentStart; /*< it will just be read there... */
2955 StaticBuf.BufUsed = SegmentEnd - SegmentStart;
2956 StaticBuf.BufSize = DecodeMe->BufSize - (SegmentStart - DecodeMe->buf);
2957 extract_token(charset, SegmentStart, 1, '?', sizeof charset);
2958 if (FoundCharset != NULL) {
2959 FlushStrBuf(FoundCharset);
2960 StrBufAppendBufPlain(FoundCharset, charset, -1, 0);
2962 extract_token(encoding, SegmentStart, 2, '?', sizeof encoding);
2963 StrBufExtract_token(ConvertBuf, &StaticBuf, 3, '?');
2965 *encoding = toupper(*encoding);
2966 if (*encoding == 'B') { /**< base64 */
2967 if (ConvertBuf2->BufSize < ConvertBuf->BufUsed)
2968 IncreaseBuf(ConvertBuf2, 0, ConvertBuf->BufUsed);
2969 ConvertBuf2->BufUsed = CtdlDecodeBase64(ConvertBuf2->buf,
2971 ConvertBuf->BufUsed);
2973 else if (*encoding == 'Q') { /**< quoted-printable */
2977 while (pos < ConvertBuf->BufUsed)
2979 if (ConvertBuf->buf[pos] == '_')
2980 ConvertBuf->buf[pos] = ' ';
2984 if (ConvertBuf2->BufSize < ConvertBuf->BufUsed)
2985 IncreaseBuf(ConvertBuf2, 0, ConvertBuf->BufUsed);
2987 ConvertBuf2->BufUsed = CtdlDecodeQuotedPrintable(
2990 ConvertBuf->BufUsed);
2993 StrBufAppendBuf(ConvertBuf2, ConvertBuf, 0);
2996 ctdl_iconv_open("UTF-8", charset, &ic);
2997 if (ic != (iconv_t)(-1) ) {
2999 StrBufConvert(ConvertBuf2, ConvertBuf, &ic);
3000 StrBufAppendBuf(Target, ConvertBuf2, 0);
3005 StrBufAppendBufPlain(Target, HKEY("(unreadable)"), 0);
3011 * @ingroup StrBuf_DeEnCoder
3012 * @brief Handle subjects with RFC2047 encoding such as: [deprecated old syntax!]
3013 * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
3014 * @param Target where to put the decoded string to
3015 * @param DecodeMe buffer with encoded string
3016 * @param DefaultCharset if we don't find one, which should we use?
3017 * @param FoundCharset overrides DefaultCharset if non-empty; If we find a charset inside of the string,
3018 * put it here for later use where no string might be known.
3020 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset)
3023 StrBuf *ConvertBuf2;
3024 ConvertBuf = NewStrBufPlain(NULL, StrLength(DecodeMe));
3025 ConvertBuf2 = NewStrBufPlain(NULL, StrLength(DecodeMe));
3027 StrBuf_RFC822_2_Utf8(Target,
3033 FreeStrBuf(&ConvertBuf);
3034 FreeStrBuf(&ConvertBuf2);
3038 * @ingroup StrBuf_DeEnCoder
3039 * @brief Handle subjects with RFC2047 encoding such as:
3040 * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
3041 * @param Target where to put the decoded string to
3042 * @param DecodeMe buffer with encoded string
3043 * @param DefaultCharset if we don't find one, which should we use?
3044 * @param FoundCharset overrides DefaultCharset if non-empty; If we find a charset inside of the string,
3045 * put it here for later use where no string might be known.
3046 * @param ConvertBuf workbuffer. feed in, you shouldn't care about its content.
3047 * @param ConvertBuf2 workbuffer. feed in, you shouldn't care about its content.
3049 void StrBuf_RFC822_2_Utf8(StrBuf *Target,
3050 const StrBuf *DecodeMe,
3051 const StrBuf* DefaultCharset,
3052 StrBuf *FoundCharset,
3054 StrBuf *ConvertBuf2)
3056 StrBuf *DecodedInvalidBuf = NULL;
3057 const StrBuf *DecodeMee = DecodeMe;
3058 const char *start, *end, *next, *nextend, *ptr = NULL;
3060 iconv_t ic = (iconv_t)(-1) ;
3065 int illegal_non_rfc2047_encoding = 0;
3067 /* Sometimes, badly formed messages contain strings which were simply
3068 * written out directly in some foreign character set instead of
3069 * using RFC2047 encoding. This is illegal but we will attempt to
3070 * handle it anyway by converting from a user-specified default
3071 * charset to UTF-8 if we see any nonprintable characters.
3074 len = StrLength(DecodeMe);
3075 for (i=0; i<DecodeMe->BufUsed; ++i) {
3076 if ((DecodeMe->buf[i] < 32) || (DecodeMe->buf[i] > 126)) {
3077 illegal_non_rfc2047_encoding = 1;
3082 if ((illegal_non_rfc2047_encoding) &&
3083 (strcasecmp(ChrPtr(DefaultCharset), "UTF-8")) &&
3084 (strcasecmp(ChrPtr(DefaultCharset), "us-ascii")) )
3087 ctdl_iconv_open("UTF-8", ChrPtr(DefaultCharset), &ic);
3088 if (ic != (iconv_t)(-1) ) {
3089 DecodedInvalidBuf = NewStrBufDup(DecodeMe);
3090 StrBufConvert(DecodedInvalidBuf, ConvertBuf, &ic);///TODO: don't void const?
3091 DecodeMee = DecodedInvalidBuf;
3097 /* pre evaluate the first pair */
3098 nextend = end = NULL;
3099 len = StrLength(DecodeMee);
3100 start = strstr(DecodeMee->buf, "=?");
3101 eptr = DecodeMee->buf + DecodeMee->BufUsed;
3103 end = FindNextEnd (DecodeMee, start + 2);
3105 StrBufAppendBuf(Target, DecodeMee, 0);
3106 FreeStrBuf(&DecodedInvalidBuf);
3111 if (start != DecodeMee->buf) {
3114 nFront = start - DecodeMee->buf;
3115 StrBufAppendBufPlain(Target, DecodeMee->buf, nFront, 0);
3119 * Since spammers will go to all sorts of absurd lengths to get their
3120 * messages through, there are LOTS of corrupt headers out there.
3121 * So, prevent a really badly formed RFC2047 header from throwing
3122 * this function into an infinite loop.
3124 while ((start != NULL) &&
3131 DecodeSegment(Target,
3139 next = strstr(end, "=?");
3141 if ((next != NULL) &&
3143 nextend = FindNextEnd(DecodeMee, next);
3144 if (nextend == NULL)
3147 /* did we find two partitions */
3148 if ((next != NULL) &&
3152 while ((ptr < next) &&
3159 * did we find a gab just filled with blanks?
3160 * if not, copy its stuff over.
3164 StrBufAppendBufPlain(Target,
3170 /* our next-pair is our new first pair now. */
3176 nextend = DecodeMee->buf + DecodeMee->BufUsed;
3177 if ((end != NULL) && (end < nextend)) {
3179 while ( (ptr < nextend) &&
3186 StrBufAppendBufPlain(Target, end, nextend - end, 0);
3188 FreeStrBuf(&DecodedInvalidBuf);
3191 /*******************************************************************************
3192 * Manipulating UTF-8 Strings *
3193 *******************************************************************************/
3197 * @brief evaluate the length of an utf8 special character sequence
3198 * @param Char the character to examine
3199 * @returns width of utf8 chars in bytes
3201 static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE)
3206 while ((n < 8) && ((test & *CharS) != 0)) {
3210 if ((n > 6) || ((CharE - CharS) < n))
3217 * @brief detect whether this char starts an utf-8 encoded char
3218 * @param Char character to inspect
3219 * @returns yes or no
3221 static inline int Ctdl_IsUtf8SequenceStart(const char Char)
3223 /** 11??.???? indicates an UTF8 Sequence. */
3224 return ((Char & 0xC0) != 0);
3229 * @brief measure the number of glyphs in an UTF8 string...
3230 * @param Buf string to measure
3231 * @returns the number of glyphs in Buf
3233 long StrBuf_Utf8StrLen(StrBuf *Buf)
3239 if ((Buf == NULL) || (Buf->BufUsed == 0))
3242 eptr = Buf->buf + Buf->BufUsed;
3243 while ((aptr < eptr) && (*aptr != '\0')) {
3244 if (Ctdl_IsUtf8SequenceStart(*aptr)){
3245 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
3246 while ((aptr < eptr) && (*aptr++ != '\0')&& (m-- > 0) );
3259 * @brief cuts a string after maxlen glyphs
3260 * @param Buf string to cut to maxlen glyphs
3261 * @param maxlen how long may the string become?
3262 * @returns current length of the string
3264 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen)
3270 eptr = Buf->buf + Buf->BufUsed;
3271 while ((aptr < eptr) && (*aptr != '\0')) {
3272 if (Ctdl_IsUtf8SequenceStart(*aptr)){
3273 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
3274 while ((*aptr++ != '\0') && (m-- > 0));
3283 Buf->BufUsed = aptr - Buf->buf;
3284 return Buf->BufUsed;
3287 return Buf->BufUsed;
3295 /*******************************************************************************
3297 *******************************************************************************/
3300 #define DEF_MEM_LEVEL 8 /*< memlevel??? */
3301 #define OS_CODE 0x03 /*< unix */
3304 * @ingroup StrBuf_DeEnCoder
3305 * @brief uses the same calling syntax as compress2(), but it
3306 * creates a stream compatible with HTTP "Content-encoding: gzip"
3307 * @param dest compressed buffer
3308 * @param destLen length of the compresed data
3309 * @param source source to encode
3310 * @param sourceLen length of source to encode
3311 * @param level compression level
3313 int ZEXPORT compress_gzip(Bytef * dest,
3315 const Bytef * source,
3319 const int gz_magic[2] = { 0x1f, 0x8b }; /* gzip magic header */
3321 /* write gzip header */
3322 snprintf((char *) dest, *destLen,
3323 "%c%c%c%c%c%c%c%c%c%c",
3324 gz_magic[0], gz_magic[1], Z_DEFLATED,
3325 0 /*flags */ , 0, 0, 0, 0 /*time */ , 0 /* xflags */ ,
3328 /* normal deflate */
3331 stream.next_in = (Bytef *) source;
3332 stream.avail_in = (uInt) sourceLen;
3333 stream.next_out = dest + 10L; // after header
3334 stream.avail_out = (uInt) * destLen;
3335 if ((uLong) stream.avail_out != *destLen)
3338 stream.zalloc = (alloc_func) 0;
3339 stream.zfree = (free_func) 0;
3340 stream.opaque = (voidpf) 0;
3342 err = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS,
3343 DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
3347 err = deflate(&stream, Z_FINISH);
3348 if (err != Z_STREAM_END) {
3349 deflateEnd(&stream);
3350 return err == Z_OK ? Z_BUF_ERROR : err;
3352 *destLen = stream.total_out + 10L;
3354 /* write CRC and Length */
3355 uLong crc = crc32(0L, source, sourceLen);
3357 for (n = 0; n < 4; ++n, ++*destLen) {
3358 dest[*destLen] = (int) (crc & 0xff);
3361 uLong len = stream.total_in;
3362 for (n = 0; n < 4; ++n, ++*destLen) {
3363 dest[*destLen] = (int) (len & 0xff);
3366 err = deflateEnd(&stream);
3373 * @ingroup StrBuf_DeEnCoder
3374 * @brief compress the buffer with gzip
3375 * Attention! If you feed this a Const String, you must maintain the uncompressed buffer yourself!
3376 * @param Buf buffer whose content is to be gzipped
3378 int CompressBuffer(StrBuf *Buf)
3381 char *compressed_data = NULL;
3382 size_t compressed_len, bufsize;
3385 bufsize = compressed_len = Buf->BufUsed + (Buf->BufUsed / 100) + 100;
3386 compressed_data = malloc(compressed_len);
3388 if (compressed_data == NULL)
3390 /* Flush some space after the used payload so valgrind shuts up... */
3391 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
3392 Buf->buf[Buf->BufUsed + i++] = '\0';
3393 if (compress_gzip((Bytef *) compressed_data,
3396 (uLongf) Buf->BufUsed, Z_BEST_SPEED) == Z_OK) {
3399 Buf->buf = compressed_data;
3400 Buf->BufUsed = compressed_len;
3401 Buf->BufSize = bufsize;
3402 /* Flush some space after the used payload so valgrind shuts up... */
3404 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
3405 Buf->buf[Buf->BufUsed + i++] = '\0';
3408 free(compressed_data);
3410 #endif /* HAVE_ZLIB */
3416 /*******************************************************************************
3417 * File I/O; Prefer buffered read since its faster! *
3418 *******************************************************************************/
3421 * @ingroup StrBuf_IO
3422 * @brief Read a line from socket
3423 * flushes and closes the FD on error
3424 * @param buf the buffer to get the input to
3425 * @param fd pointer to the filedescriptor to read
3426 * @param append Append to an existing string or replace?
3427 * @param Error strerror() on error
3428 * @returns numbers of chars read
3430 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error)
3432 int len, rlen, slen;
3437 slen = len = buf->BufUsed;
3439 rlen = read(*fd, &buf->buf[len], 1);
3441 *Error = strerror(errno);
3448 if (buf->buf[len] == '\n')
3450 if (buf->buf[len] != '\r')
3452 if (len + 2 >= buf->BufSize) {
3454 buf->buf[len+1] = '\0';
3455 IncreaseBuf(buf, 1, -1);
3459 buf->buf[len] = '\0';
3464 * @ingroup StrBuf_BufferedIO
3465 * @brief Read a line from socket
3466 * flushes and closes the FD on error
3467 * @param Line the line to read from the fd / I/O Buffer
3468 * @param buf the buffer to get the input to
3469 * @param fd pointer to the filedescriptor to read
3470 * @param timeout number of successless selects until we bail out
3471 * @param selectresolution how long to wait on each select
3472 * @param Error strerror() on error
3473 * @returns numbers of chars read
3475 int StrBufTCP_read_buffered_line(StrBuf *Line,
3479 int selectresolution,
3483 int nSuccessLess = 0;
3490 if (buf->BufUsed > 0) {
3491 pch = strchr(buf->buf, '\n');
3494 len = pch - buf->buf;
3495 if (len > 0 && (*(pch - 1) == '\r') )
3497 StrBufSub(Line, buf, 0, len - rlen);
3498 StrBufCutLeft(buf, len + 1);
3503 if (buf->BufSize - buf->BufUsed < 10)
3504 IncreaseBuf(buf, 1, -1);
3506 fdflags = fcntl(*fd, F_GETFL);
3507 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3509 while ((nSuccessLess < timeout) && (pch == NULL)) {
3511 tv.tv_sec = selectresolution;
3516 if (select(*fd + 1, NULL, &rfds, NULL, &tv) == -1) {
3517 *Error = strerror(errno);
3523 if (IsNonBlock && ! FD_ISSET(*fd, &rfds)) {
3528 &buf->buf[buf->BufUsed],
3529 buf->BufSize - buf->BufUsed - 1);
3531 *Error = strerror(errno);
3536 else if (rlen > 0) {
3538 buf->BufUsed += rlen;
3539 buf->buf[buf->BufUsed] = '\0';
3540 if (buf->BufUsed + 10 > buf->BufSize) {
3541 IncreaseBuf(buf, 1, -1);
3543 pch = strchr(buf->buf, '\n');
3550 len = pch - buf->buf;
3551 if (len > 0 && (*(pch - 1) == '\r') )
3553 StrBufSub(Line, buf, 0, len - rlen);
3554 StrBufCutLeft(buf, len + 1);
3561 static const char *ErrRBLF_PreConditionFailed="StrBufTCP_read_buffered_line_fast: Wrong arguments or invalid Filedescriptor";
3562 static const char *ErrRBLF_SelectFailed="StrBufTCP_read_buffered_line_fast: Select failed without reason";
3563 static const char *ErrRBLF_NotEnoughSentFromServer="StrBufTCP_read_buffered_line_fast: No complete line was sent from peer";
3565 * @ingroup StrBuf_BufferedIO
3566 * @brief Read a line from socket
3567 * flushes and closes the FD on error
3568 * @param Line where to append our Line read from the fd / I/O Buffer;
3569 * @param IOBuf the buffer to get the input to; lifetime pair to FD
3570 * @param Pos pointer to the current read position, should be NULL initialized on opening the FD it belongs to.!
3571 * @param fd pointer to the filedescriptor to read
3572 * @param timeout number of successless selects until we bail out
3573 * @param selectresolution how long to wait on each select
3574 * @param Error strerror() on error
3575 * @returns numbers of chars read or -1 in case of error. "\n" will become 0
3577 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
3582 int selectresolution,
3585 const char *pche = NULL;
3586 const char *pos = NULL;
3588 int len, rlen, retlen;
3589 int nSuccessLess = 0;
3591 const char *pch = NULL;
3597 if ((Line == NULL) ||
3604 *Error = ErrRBLF_PreConditionFailed;
3609 if ((IOBuf->BufUsed > 0) &&
3611 (pos < IOBuf->buf + IOBuf->BufUsed))
3615 pche = IOBuf->buf + IOBuf->BufUsed;
3619 while ((pch < pche) && (*pch != '\n'))
3621 if (Line->BufUsed + 10 > Line->BufSize)
3624 apos = pcht - Line->buf;
3626 IncreaseBuf(Line, 1, -1);
3627 pcht = Line->buf + apos;
3635 if (len > 0 && (*(pch - 1) == '\r') )
3644 if ((pch >= pche) || (*pch == '\0'))
3652 if ((pch != NULL) &&
3655 if (pch + 1 >= pche) {
3668 /* If we come here, Pos is Unset since we read everything into Line, and now go for more. */
3670 if (IOBuf->BufSize - IOBuf->BufUsed < 10)
3671 IncreaseBuf(IOBuf, 1, -1);
3673 fdflags = fcntl(*fd, F_GETFL);
3674 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3677 while ((nSuccessLess < timeout) &&
3687 if (select((*fd) + 1, &rfds, NULL, NULL, &tv) == -1) {
3688 *Error = strerror(errno);
3692 *Error = ErrRBLF_SelectFailed;
3695 if (! FD_ISSET(*fd, &rfds) != 0) {
3701 &IOBuf->buf[IOBuf->BufUsed],
3702 IOBuf->BufSize - IOBuf->BufUsed - 1);
3704 *Error = strerror(errno);
3709 else if (rlen > 0) {
3711 pLF = IOBuf->buf + IOBuf->BufUsed;
3712 IOBuf->BufUsed += rlen;
3713 IOBuf->buf[IOBuf->BufUsed] = '\0';
3715 pche = IOBuf->buf + IOBuf->BufUsed;
3717 while ((pLF < pche) && (*pLF != '\n'))
3719 if ((pLF >= pche) || (*pLF == '\0'))
3722 if (IOBuf->BufUsed + 10 > IOBuf->BufSize)
3726 if (pLF != NULL) apos = pLF - IOBuf->buf;
3727 IncreaseBuf(IOBuf, 1, -1);
3728 if (pLF != NULL) pLF = IOBuf->buf + apos;
3738 if (len > 0 && (*(pLF - 1) == '\r') )
3740 StrBufAppendBufPlain(Line, ChrPtr(IOBuf), len, 0);
3741 if (pLF + 1 >= IOBuf->buf + IOBuf->BufUsed)
3747 return retlen + len;
3749 *Error = ErrRBLF_NotEnoughSentFromServer;
3754 static const char *ErrRBLF_BLOBPreConditionFailed="StrBufReadBLOB: Wrong arguments or invalid Filedescriptor";
3756 * @ingroup StrBuf_IO
3757 * @brief Input binary data from socket
3758 * flushes and closes the FD on error
3759 * @param Buf the buffer to get the input to
3760 * @param fd pointer to the filedescriptor to read
3761 * @param append Append to an existing string or replace?
3762 * @param nBytes the maximal number of bytes to read
3763 * @param Error strerror() on error
3764 * @returns numbers of chars read
3766 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error)
3769 int len, rlen, slen;
3777 if ((Buf == NULL) || (*fd == -1))
3779 *Error = ErrRBLF_BLOBPreConditionFailed;
3784 if (Buf->BufUsed + nBytes >= Buf->BufSize)
3785 IncreaseBuf(Buf, 1, Buf->BufUsed + nBytes);
3787 ptr = Buf->buf + Buf->BufUsed;
3789 slen = len = Buf->BufUsed;
3791 fdflags = fcntl(*fd, F_GETFL);
3792 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3794 while ((nRead < nBytes) &&
3804 if (select(*fd + 1, &rfds, NULL, NULL, &tv) == -1) {
3805 *Error = strerror(errno);
3809 *Error = ErrRBLF_SelectFailed;
3812 if (! FD_ISSET(*fd, &rfds) != 0) {
3818 if ((rlen = read(*fd,
3820 nBytes - nRead)) == -1) {
3823 *Error = strerror(errno);
3828 Buf->BufUsed += rlen;
3830 Buf->buf[Buf->BufUsed] = '\0';
3834 const char *ErrRBB_BLOBFPreConditionFailed = "StrBufReadBLOBBuffered: to many selects; aborting.";
3835 const char *ErrRBB_too_many_selects = "StrBufReadBLOBBuffered: to many selects; aborting.";
3837 * @ingroup StrBuf_BufferedIO
3838 * @brief Input binary data from socket
3839 * flushes and closes the FD on error
3840 * @param Blob put binary thing here
3841 * @param IOBuf the buffer to get the input to
3842 * @param Pos offset inside of IOBuf
3843 * @param fd pointer to the filedescriptor to read
3844 * @param append Append to an existing string or replace?
3845 * @param nBytes the maximal number of bytes to read
3846 * @param check whether we should search for '000\n' terminators in case of timeouts
3847 * @param Error strerror() on error
3848 * @returns numbers of chars read
3850 int StrBufReadBLOBBuffered(StrBuf *Blob,
3865 int nAlreadyRead = 0;
3871 int nSuccessLess = 0;
3874 if ((Blob == NULL) || (*fd == -1) || (IOBuf == NULL) || (Pos == NULL))
3878 *Error = ErrRBB_BLOBFPreConditionFailed;
3884 if (Blob->BufUsed + nBytes >= Blob->BufSize)
3885 IncreaseBuf(Blob, append, Blob->BufUsed + nBytes);
3890 len = pos - IOBuf->buf;
3891 rlen = IOBuf->BufUsed - len;
3894 if ((IOBuf->BufUsed > 0) &&
3896 (pos < IOBuf->buf + IOBuf->BufUsed))
3898 pche = IOBuf->buf + IOBuf->BufUsed;
3901 if (rlen < nBytes) {
3902 memcpy(Blob->buf + Blob->BufUsed, pos, rlen);
3903 Blob->BufUsed += rlen;
3904 Blob->buf[Blob->BufUsed] = '\0';
3905 nAlreadyRead = nRead = rlen;
3908 if (rlen >= nBytes) {
3909 memcpy(Blob->buf + Blob->BufUsed, pos, nBytes);
3910 Blob->BufUsed += nBytes;
3911 Blob->buf[Blob->BufUsed] = '\0';
3912 if (rlen == nBytes) {
3924 if (IOBuf->BufSize < nBytes - nRead)
3925 IncreaseBuf(IOBuf, 0, nBytes - nRead);
3928 slen = len = Blob->BufUsed;
3930 fdflags = fcntl(*fd, F_GETFL);
3931 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3939 while ((nSuccessLess < MaxTries) &&
3949 if (select(*fd + 1, &rfds, NULL, NULL, &tv) == -1) {
3950 *Error = strerror(errno);
3954 *Error = ErrRBLF_SelectFailed;
3957 if (! FD_ISSET(*fd, &rfds) != 0) {
3964 IOBuf->BufSize - (ptr - IOBuf->buf));
3968 *Error = strerror(errno);
3971 else if (rlen == 0){
3972 if ((check == NNN_TERM) &&
3974 (strncmp(IOBuf->buf + IOBuf->BufUsed - 5, "\n000\n", 5) == 0))
3976 StrBufPlain(Blob, HKEY("\n000\n"));
3977 StrBufCutRight(Blob, 5);
3978 return Blob->BufUsed;
3980 else if (!IsNonBlock)
3982 else if (nSuccessLess > MaxTries) {
3984 *Error = ErrRBB_too_many_selects;
3988 else if (rlen > 0) {
3992 IOBuf->BufUsed += rlen;
3995 if (nSuccessLess >= MaxTries) {
3997 *Error = ErrRBB_too_many_selects;
4001 if (nRead > nBytes) {
4002 *Pos = IOBuf->buf + nBytes;
4004 Blob->buf[Blob->BufUsed] = '\0';
4005 StrBufAppendBufPlain(Blob, IOBuf->buf, nBytes, 0);
4009 return nRead + nAlreadyRead;
4013 * @ingroup StrBuf_IO
4014 * @brief extract a "next line" from Buf; Ptr to persist across several iterations
4015 * @param LineBuf your line will be copied here.
4016 * @param Buf BLOB with lines of text...
4017 * @param Ptr moved arround to keep the next-line across several iterations
4018 * has to be &NULL on start; will be &NotNULL on end of buffer
4019 * @returns size of copied buffer
4021 int StrBufSipLine(StrBuf *LineBuf, StrBuf *Buf, const char **Ptr)
4023 const char *aptr, *ptr, *eptr;
4026 if ((Buf == NULL) || (*Ptr == StrBufNOTNULL)) {
4027 *Ptr = StrBufNOTNULL;
4031 FlushStrBuf(LineBuf);
4033 ptr = aptr = Buf->buf;
4037 optr = LineBuf->buf;
4038 eptr = Buf->buf + Buf->BufUsed;
4039 xptr = LineBuf->buf + LineBuf->BufSize - 1;
4041 while ((ptr <= eptr) &&
4048 LineBuf->BufUsed = optr - LineBuf->buf;
4049 IncreaseBuf(LineBuf, 1, LineBuf->BufUsed + 1);
4050 optr = LineBuf->buf + LineBuf->BufUsed;
4051 xptr = LineBuf->buf + LineBuf->BufSize - 1;
4055 if ((ptr >= eptr) && (optr > LineBuf->buf))
4057 LineBuf->BufUsed = optr - LineBuf->buf;
4059 if ((ptr <= eptr) && (*ptr == '\r'))
4061 if ((ptr <= eptr) && (*ptr == '\n'))
4068 *Ptr = StrBufNOTNULL;
4071 return Buf->BufUsed - (ptr - Buf->buf);
4076 * @ingroup StrBuf_IO
4077 * @brief removes double slashes from pathnames
4078 * @param Dir directory string to filter
4079 * @param RemoveTrailingSlash allows / disallows trailing slashes
4081 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash)
4087 while (!IsEmptyStr(a)) {
4099 if ((RemoveTrailingSlash) && (*(b - 1) != '/')){
4104 Dir->BufUsed = b - Dir->buf;