8 #include <sys/select.h>
10 #include <sys/types.h>
11 #define SHOW_ME_VAPPEND_PRINTF
13 #include "libcitadel.h"
25 int ZEXPORT compress_gzip(Bytef * dest, size_t * destLen,
26 const Bytef * source, uLong sourceLen, int level);
28 int BaseStrBufSize = 64;
30 const char *StrBufNOTNULL = ((char*) NULL) - 1;
32 const char HexList[256][3] = {
33 "00","01","02","03","04","05","06","07","08","09","0A","0B","0C","0D","0E","0F",
34 "10","11","12","13","14","15","16","17","18","19","1A","1B","1C","1D","1E","1F",
35 "20","21","22","23","24","25","26","27","28","29","2A","2B","2C","2D","2E","2F",
36 "30","31","32","33","34","35","36","37","38","39","3A","3B","3C","3D","3E","3F",
37 "40","41","42","43","44","45","46","47","48","49","4A","4B","4C","4D","4E","4F",
38 "50","51","52","53","54","55","56","57","58","59","5A","5B","5C","5D","5E","5F",
39 "60","61","62","63","64","65","66","67","68","69","6A","6B","6C","6D","6E","6F",
40 "70","71","72","73","74","75","76","77","78","79","7A","7B","7C","7D","7E","7F",
41 "80","81","82","83","84","85","86","87","88","89","8A","8B","8C","8D","8E","8F",
42 "90","91","92","93","94","95","96","97","98","99","9A","9B","9C","9D","9E","9F",
43 "A0","A1","A2","A3","A4","A5","A6","A7","A8","A9","AA","AB","AC","AD","AE","AF",
44 "B0","B1","B2","B3","B4","B5","B6","B7","B8","B9","BA","BB","BC","BD","BE","BF",
45 "C0","C1","C2","C3","C4","C5","C6","C7","C8","C9","CA","CB","CC","CD","CE","CF",
46 "D0","D1","D2","D3","D4","D5","D6","D7","D8","D9","DA","DB","DC","DD","DE","DF",
47 "E0","E1","E2","E3","E4","E5","E6","E7","E8","E9","EA","EB","EC","ED","EE","EF",
48 "F0","F1","F2","F3","F4","F5","F6","F7","F8","F9","FA","FB","FC","FD","FE","FF"};
51 * @defgroup StrBuf Stringbuffer, A class for manipulating strings with dynamic buffers
52 * StrBuf is a versatile class, aiding the handling of dynamic strings
53 * * reduce de/reallocations
54 * * reduce the need to remeasure it
55 * * reduce scanning over the string (in @ref StrBuf_NextTokenizer "Tokenizers")
56 * * allow asyncroneous IO for line and Blob based operations
57 * * reduce the use of memove in those
58 * * Quick filling in several operations with append functions
62 * @defgroup StrBuf_DeConstructors Create/Destroy StrBufs
67 * @defgroup StrBuf_Cast Cast operators to interact with char* based code
69 * use these operators to interfere with code demanding char*;
70 * if you need to own the content, smash me. Avoid, since we loose the length information.
74 * @defgroup StrBuf_Filler Create/Replace/Append Content into a StrBuf
76 * operations to get your Strings into a StrBuf, manipulating them, or appending
79 * @defgroup StrBuf_NextTokenizer Fast tokenizer to pull tokens in sequence
81 * Quick tokenizer; demands of the user to pull its tokens in sequence
85 * @defgroup StrBuf_Tokenizer tokenizer Functions; Slow ones.
87 * versatile tokenizer; random access to tokens, but slower; Prefer the @ref StrBuf_NextTokenizer "Next Tokenizer"
91 * @defgroup StrBuf_BufferedIO Buffered IO with Asynchroneous reads and no unneeded memmoves (the fast ones)
93 * File IO to fill StrBufs; Works with work-buffer shared across several calls;
94 * External Cursor to maintain the current read position inside of the buffer
95 * the non-fast ones will use memove to keep the start of the buffer the read buffer (which is slower)
99 * @defgroup StrBuf_IO FileIO; Prefer @ref StrBuf_BufferedIO
105 * @defgroup StrBuf_DeEnCoder functions to translate the contents of a buffer
107 * these functions translate the content of a buffer into another representation;
108 * some are combined Fillers and encoders
112 * Private Structure for the Stringbuffer
115 char *buf; /**< the pointer to the dynamic buffer */
116 long BufSize; /**< how many spcae do we optain */
117 long BufUsed; /**< StNumber of Chars used excluding the trailing \\0 */
118 int ConstBuf; /**< are we just a wrapper arround a static buffer and musn't we be changed? */
120 long nIncreases; /**< for profiling; cound how many times we needed more */
121 char bt [SIZ]; /**< Stacktrace of last increase */
122 char bt_lastinc [SIZ]; /**< How much did we increase last time? */
127 static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE);
128 static inline int Ctdl_IsUtf8SequenceStart(const char Char);
131 #ifdef HAVE_BACKTRACE
132 static void StrBufBacktrace(StrBuf *Buf, int which)
136 void *stack_frames[50];
141 pstart = pch = Buf->bt;
143 pstart = pch = Buf->bt_lastinc;
144 size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
145 strings = backtrace_symbols(stack_frames, size);
146 for (i = 0; i < size; i++) {
148 n = snprintf(pch, SIZ - (pch - pstart), "%s\\n", strings[i]);
150 n = snprintf(pch, SIZ - (pch - pstart), "%p\\n", stack_frames[i]);
159 void dbg_FreeStrBuf(StrBuf *FreeMe, char *FromWhere)
161 if (hFreeDbglog == -1){
162 pid_t pid = getpid();
164 snprintf(path, SIZ, "/tmp/libcitadel_strbuf_realloc.log.%d", pid);
165 hFreeDbglog = open(path, O_APPEND|O_CREAT|O_WRONLY);
167 if ((*FreeMe)->nIncreases > 0)
171 n = snprintf(buf, SIZ * 3, "%c+|%ld|%ld|%ld|%s|%s|\n",
173 (*FreeMe)->nIncreases,
177 (*FreeMe)->bt_lastinc);
178 n = write(hFreeDbglog, buf, n);
184 n = snprintf(buf, 128, "%c_|0|%ld%ld|\n",
188 n = write(hFreeDbglog, buf, n);
192 void dbg_IncreaseBuf(StrBuf *IncMe)
195 #ifdef HAVE_BACKTRACE
196 StrBufBacktrace(Buf, 1);
200 void dbg_Init(StrBuf *Buf)
204 Buf->bt_lastinc[0] = '\0';
205 #ifdef HAVE_BACKTRACE
206 StrBufBacktrace(Buf, 0);
212 #define dbg_FreeStrBuf(a, b)
213 #define dbg_IncreaseBuf(a)
220 * @brief swaps the contents of two StrBufs
221 * this is to be used to have cheap switched between a work-buffer and a target buffer
223 * @param B second one
225 static inline void SwapBuffers(StrBuf *A, StrBuf *B)
229 memcpy(&C, A, sizeof(*A));
230 memcpy(A, B, sizeof(*B));
231 memcpy(B, &C, sizeof(C));
236 * @ingroup StrBuf_Cast
237 * @brief Cast operator to Plain String
238 * @note if the buffer is altered by StrBuf operations, this pointer may become
239 * invalid. So don't lean on it after altering the buffer!
240 * Since this operation is considered cheap, rather call it often than risking
241 * your pointer to become invalid!
242 * @param Str the string we want to get the c-string representation for
243 * @returns the Pointer to the Content. Don't mess with it!
245 inline const char *ChrPtr(const StrBuf *Str)
253 * @ingroup StrBuf_Cast
254 * @brief since we know strlen()'s result, provide it here.
255 * @param Str the string to return the length to
256 * @returns contentlength of the buffer
258 inline int StrLength(const StrBuf *Str)
260 return (Str != NULL) ? Str->BufUsed : 0;
264 * @ingroup StrBuf_DeConstructors
265 * @brief local utility function to resize the buffer
266 * @param Buf the buffer whichs storage we should increase
267 * @param KeepOriginal should we copy the original buffer or just start over with a new one
268 * @param DestSize what should fit in after?
270 static int IncreaseBuf(StrBuf *Buf, int KeepOriginal, int DestSize)
273 size_t NewSize = Buf->BufSize * 2;
279 while ((NewSize <= DestSize) && (NewSize != 0))
285 NewBuf= (char*) malloc(NewSize);
289 if (KeepOriginal && (Buf->BufUsed > 0))
291 memcpy(NewBuf, Buf->buf, Buf->BufUsed);
300 Buf->BufSize = NewSize;
302 dbg_IncreaseBuf(Buf);
308 * @ingroup StrBuf_DeConstructors
309 * @brief shrink / increase an _EMPTY_ buffer to NewSize. Buffercontent is thoroughly ignored and flushed.
310 * @param Buf Buffer to shrink (has to be empty)
311 * @param ThreshHold if the buffer is bigger then this, its readjusted
312 * @param NewSize if we Shrink it, how big are we going to be afterwards?
314 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize)
317 (Buf->BufUsed == 0) &&
318 (Buf->BufSize < ThreshHold)) {
320 Buf->buf = (char*) malloc(NewSize);
322 Buf->BufSize = NewSize;
327 * @ingroup StrBuf_DeConstructors
328 * @brief shrink long term buffers to their real size so they don't waste memory
329 * @param Buf buffer to shrink
330 * @param Force if not set, will just executed if the buffer is much to big; set for lifetime strings
331 * @returns physical size of the buffer
333 long StrBufShrinkToFit(StrBuf *Buf, int Force)
338 (Buf->BufUsed + (Buf->BufUsed / 3) > Buf->BufSize))
340 char *TmpBuf = (char*) malloc(Buf->BufUsed + 1);
341 memcpy (TmpBuf, Buf->buf, Buf->BufUsed + 1);
342 Buf->BufSize = Buf->BufUsed + 1;
350 * @ingroup StrBuf_DeConstructors
351 * @brief Allocate a new buffer with default buffer size
352 * @returns the new stringbuffer
354 StrBuf* NewStrBuf(void)
358 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
359 NewBuf->buf = (char*) malloc(BaseStrBufSize);
360 NewBuf->buf[0] = '\0';
361 NewBuf->BufSize = BaseStrBufSize;
363 NewBuf->ConstBuf = 0;
371 * @ingroup StrBuf_DeConstructors
372 * @brief Copy Constructor; returns a duplicate of CopyMe
373 * @param CopyMe Buffer to faxmilate
374 * @returns the new stringbuffer
376 StrBuf* NewStrBufDup(const StrBuf *CopyMe)
383 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
384 NewBuf->buf = (char*) malloc(CopyMe->BufSize);
385 memcpy(NewBuf->buf, CopyMe->buf, CopyMe->BufUsed + 1);
386 NewBuf->BufUsed = CopyMe->BufUsed;
387 NewBuf->BufSize = CopyMe->BufSize;
388 NewBuf->ConstBuf = 0;
396 * @ingroup StrBuf_DeConstructors
397 * @brief Copy Constructor; CreateRelpaceMe will contain CopyFlushMe afterwards.
398 * @param NoMe if non-NULL, we will use that buffer as value; KeepOriginal will abused as len.
399 * @param CopyFlushMe Buffer to faxmilate if KeepOriginal, or to move into CreateRelpaceMe if !KeepOriginal.
400 * @param CreateRelpaceMe If NULL, will be created, else Flushed and filled CopyFlushMe
401 * @param KeepOriginal should CopyFlushMe remain intact? or may we Steal its buffer?
402 * @returns the new stringbuffer
404 void NewStrBufDupAppendFlush(StrBuf **CreateRelpaceMe, StrBuf *CopyFlushMe, const char *NoMe, int KeepOriginal)
408 if (CreateRelpaceMe == NULL)
413 if (*CreateRelpaceMe != NULL)
414 StrBufPlain(*CreateRelpaceMe, NoMe, KeepOriginal);
416 *CreateRelpaceMe = NewStrBufPlain(NoMe, KeepOriginal);
420 if (CopyFlushMe == NULL)
422 if (*CreateRelpaceMe != NULL)
423 FlushStrBuf(*CreateRelpaceMe);
425 *CreateRelpaceMe = NewStrBuf();
430 * Randomly Chosen: bigger than 64 chars is cheaper to swap the buffers instead of copying.
431 * else *CreateRelpaceMe may use more memory than needed in a longer term, CopyFlushMe might
432 * be a big IO-Buffer...
434 if (KeepOriginal || (StrLength(CopyFlushMe) < 256))
436 if (*CreateRelpaceMe == NULL)
438 *CreateRelpaceMe = NewBuf = NewStrBufPlain(NULL, CopyFlushMe->BufUsed);
443 NewBuf = *CreateRelpaceMe;
446 StrBufAppendBuf(NewBuf, CopyFlushMe, 0);
450 if (*CreateRelpaceMe == NULL)
452 *CreateRelpaceMe = NewBuf = NewStrBufPlain(NULL, CopyFlushMe->BufUsed);
456 NewBuf = *CreateRelpaceMe;
457 SwapBuffers (NewBuf, CopyFlushMe);
460 FlushStrBuf(CopyFlushMe);
465 * @ingroup StrBuf_DeConstructors
466 * @brief create a new Buffer using an existing c-string
467 * this function should also be used if you want to pre-suggest
468 * the buffer size to allocate in conjunction with ptr == NULL
469 * @param ptr the c-string to copy; may be NULL to create a blank instance
470 * @param nChars How many chars should we copy; -1 if we should measure the length ourselves
471 * @returns the new stringbuffer
473 StrBuf* NewStrBufPlain(const char* ptr, int nChars)
476 size_t Siz = BaseStrBufSize;
479 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
481 CopySize = strlen((ptr != NULL)?ptr:"");
485 while ((Siz <= CopySize) && (Siz != 0))
493 NewBuf->buf = (char*) malloc(Siz);
494 if (NewBuf->buf == NULL)
499 NewBuf->BufSize = Siz;
501 memcpy(NewBuf->buf, ptr, CopySize);
502 NewBuf->buf[CopySize] = '\0';
503 NewBuf->BufUsed = CopySize;
506 NewBuf->buf[0] = '\0';
509 NewBuf->ConstBuf = 0;
517 * @ingroup StrBuf_DeConstructors
518 * @brief Set an existing buffer from a c-string
519 * @param Buf buffer to load
520 * @param ptr c-string to put into
521 * @param nChars set to -1 if we should work 0-terminated
522 * @returns the new length of the string
524 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars)
539 CopySize = strlen(ptr);
543 while ((Siz <= CopySize) && (Siz != 0))
551 if (Siz != Buf->BufSize)
552 IncreaseBuf(Buf, 0, Siz);
553 memcpy(Buf->buf, ptr, CopySize);
554 Buf->buf[CopySize] = '\0';
555 Buf->BufUsed = CopySize;
562 * @ingroup StrBuf_DeConstructors
563 * @brief use strbuf as wrapper for a string constant for easy handling
564 * @param StringConstant a string to wrap
565 * @param SizeOfStrConstant should be sizeof(StringConstant)-1
567 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant)
571 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
572 NewBuf->buf = (char*) StringConstant;
573 NewBuf->BufSize = SizeOfStrConstant;
574 NewBuf->BufUsed = SizeOfStrConstant;
575 NewBuf->ConstBuf = 1;
584 * @ingroup StrBuf_DeConstructors
585 * @brief flush the content of a Buf; keep its struct
586 * @param buf Buffer to flush
588 int FlushStrBuf(StrBuf *buf)
600 * @ingroup StrBuf_DeConstructors
601 * @brief wipe the content of a Buf thoroughly (overwrite it -> expensive); keep its struct
602 * @param buf Buffer to wipe
604 int FLUSHStrBuf(StrBuf *buf)
610 if (buf->BufUsed > 0) {
611 memset(buf->buf, 0, buf->BufUsed);
618 int hFreeDbglog = -1;
621 * @ingroup StrBuf_DeConstructors
622 * @brief Release a Buffer
623 * Its a double pointer, so it can NULL your pointer
624 * so fancy SIG11 appear instead of random results
625 * @param FreeMe Pointer Pointer to the buffer to free
627 void FreeStrBuf (StrBuf **FreeMe)
632 dbg_FreeStrBuf(FreeMe, 'F');
634 if (!(*FreeMe)->ConstBuf)
635 free((*FreeMe)->buf);
641 * @ingroup StrBuf_DeConstructors
642 * @brief flatten a Buffer to the Char * we return
643 * Its a double pointer, so it can NULL your pointer
644 * so fancy SIG11 appear instead of random results
645 * The Callee then owns the buffer and is responsible for freeing it.
646 * @param SmashMe Pointer Pointer to the buffer to release Buf from and free
647 * @returns the pointer of the buffer; Callee owns the memory thereafter.
649 char *SmashStrBuf (StrBuf **SmashMe)
653 if ((SmashMe == NULL) || (*SmashMe == NULL))
656 dbg_FreeStrBuf(SmashMe, 'S');
658 Ret = (*SmashMe)->buf;
665 * @ingroup StrBuf_DeConstructors
666 * @brief Release the buffer
667 * If you want put your StrBuf into a Hash, use this as Destructor.
668 * @param VFreeMe untyped pointer to a StrBuf. be shure to do the right thing [TM]
670 void HFreeStrBuf (void *VFreeMe)
672 StrBuf *FreeMe = (StrBuf*)VFreeMe;
676 dbg_FreeStrBuf(SmashMe, 'H');
678 if (!FreeMe->ConstBuf)
684 /*******************************************************************************
685 * Simple string transformations *
686 *******************************************************************************/
690 * @brief Wrapper around atol
692 long StrTol(const StrBuf *Buf)
697 return atol(Buf->buf);
704 * @brief Wrapper around atoi
706 int StrToi(const StrBuf *Buf)
710 if (Buf->BufUsed > 0)
711 return atoi(Buf->buf);
718 * @brief Checks to see if the string is a pure number
719 * @param Buf The buffer to inspect
720 * @returns 1 if its a pure number, 0, if not.
722 int StrBufIsNumber(const StrBuf *Buf) {
724 if ((Buf == NULL) || (Buf->BufUsed == 0)) {
727 strtoll(Buf->buf, &pEnd, 10);
728 if (pEnd == Buf->buf)
730 if ((pEnd != NULL) && (pEnd == Buf->buf + Buf->BufUsed))
732 if (Buf->buf == pEnd)
738 * @ingroup StrBuf_Filler
739 * @brief modifies a Single char of the Buf
740 * You can point to it via char* or a zero-based integer
741 * @param Buf The buffer to manipulate
742 * @param ptr char* to zero; use NULL if unused
743 * @param nThChar zero based pointer into the string; use -1 if unused
744 * @param PeekValue The Character to place into the position
746 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue)
751 nThChar = ptr - Buf->buf;
752 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
754 Buf->buf[nThChar] = PeekValue;
759 * @ingroup StrBuf_Filler
760 * @brief modifies a range of chars of the Buf
761 * You can point to it via char* or a zero-based integer
762 * @param Buf The buffer to manipulate
763 * @param ptr char* to zero; use NULL if unused
764 * @param nThChar zero based pointer into the string; use -1 if unused
765 * @param nChars how many chars are to be flushed?
766 * @param PookValue The Character to place into that area
768 long StrBufPook(StrBuf *Buf, const char* ptr, long nThChar, long nChars, char PookValue)
773 nThChar = ptr - Buf->buf;
774 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
776 if (nThChar + nChars > Buf->BufUsed)
777 nChars = Buf->BufUsed - nThChar;
779 memset(Buf->buf + nThChar, PookValue, nChars);
780 /* just to be shure... */
781 Buf->buf[Buf->BufUsed] = 0;
786 * @ingroup StrBuf_Filler
787 * @brief Append a StringBuffer to the buffer
788 * @param Buf Buffer to modify
789 * @param AppendBuf Buffer to copy at the end of our buffer
790 * @param Offset Should we start copying from an offset?
792 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset)
794 if ((AppendBuf == NULL) || (Buf == NULL) || (AppendBuf->buf == NULL))
797 if (Buf->BufSize - Offset < AppendBuf->BufUsed + Buf->BufUsed + 1)
800 AppendBuf->BufUsed + Buf->BufUsed);
802 memcpy(Buf->buf + Buf->BufUsed,
803 AppendBuf->buf + Offset,
804 AppendBuf->BufUsed - Offset);
805 Buf->BufUsed += AppendBuf->BufUsed - Offset;
806 Buf->buf[Buf->BufUsed] = '\0';
811 * @ingroup StrBuf_Filler
812 * @brief Append a C-String to the buffer
813 * @param Buf Buffer to modify
814 * @param AppendBuf Buffer to copy at the end of our buffer
815 * @param AppendSize number of bytes to copy; set to -1 if we should count it in advance
816 * @param Offset Should we start copying from an offset?
818 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset)
821 long BufSizeRequired;
823 if ((AppendBuf == NULL) || (Buf == NULL))
827 aps = strlen(AppendBuf + Offset);
829 aps = AppendSize - Offset;
831 BufSizeRequired = Buf->BufUsed + aps + 1;
832 if (Buf->BufSize <= BufSizeRequired)
833 IncreaseBuf(Buf, (Buf->BufUsed > 0), BufSizeRequired);
835 memcpy(Buf->buf + Buf->BufUsed,
839 Buf->buf[Buf->BufUsed] = '\0';
843 * @ingroup StrBuf_Filler
844 * @brief sprintf like function appending the formated string to the buffer
845 * vsnprintf version to wrap into own calls
846 * @param Buf Buffer to extend by format and Params
847 * @param format printf alike format to add
848 * @param ap va_list containing the items for format
850 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap)
858 if ((Buf == NULL) || (format == NULL))
861 BufSize = Buf->BufSize;
862 nWritten = Buf->BufSize + 1;
863 Offset = Buf->BufUsed;
864 newused = Offset + nWritten;
866 while (newused >= BufSize) {
868 nWritten = vsnprintf(Buf->buf + Offset,
869 Buf->BufSize - Offset,
872 newused = Offset + nWritten;
873 if (newused >= Buf->BufSize) {
874 if (IncreaseBuf(Buf, 1, newused) == -1)
875 return; /* TODO: error handling? */
876 newused = Buf->BufSize + 1;
879 Buf->BufUsed = Offset + nWritten;
880 BufSize = Buf->BufSize;
887 * @ingroup StrBuf_Filler
888 * @brief sprintf like function appending the formated string to the buffer
889 * @param Buf Buffer to extend by format and Params
890 * @param format printf alike format to add
892 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...)
900 if ((Buf == NULL) || (format == NULL))
903 BufSize = Buf->BufSize;
904 nWritten = Buf->BufSize + 1;
905 Offset = Buf->BufUsed;
906 newused = Offset + nWritten;
908 while (newused >= BufSize) {
909 va_start(arg_ptr, format);
910 nWritten = vsnprintf(Buf->buf + Buf->BufUsed,
911 Buf->BufSize - Buf->BufUsed,
914 newused = Buf->BufUsed + nWritten;
915 if (newused >= Buf->BufSize) {
916 if (IncreaseBuf(Buf, 1, newused) == -1)
917 return; /* TODO: error handling? */
918 newused = Buf->BufSize + 1;
921 Buf->BufUsed += nWritten;
922 BufSize = Buf->BufSize;
929 * @ingroup StrBuf_Filler
930 * @brief sprintf like function putting the formated string into the buffer
931 * @param Buf Buffer to extend by format and Parameters
932 * @param format printf alike format to add
934 void StrBufPrintf(StrBuf *Buf, const char *format, ...)
939 if ((Buf == NULL) || (format == NULL))
942 nWritten = Buf->BufSize + 1;
943 while (nWritten >= Buf->BufSize) {
944 va_start(arg_ptr, format);
945 nWritten = vsnprintf(Buf->buf, Buf->BufSize, format, arg_ptr);
947 if (nWritten >= Buf->BufSize) {
948 if (IncreaseBuf(Buf, 0, 0) == -1)
949 return; /* TODO: error handling? */
950 nWritten = Buf->BufSize + 1;
953 Buf->BufUsed = nWritten ;
958 * @ingroup StrBuf_Filler
959 * @brief Callback for cURL to append the webserver reply to a buffer
960 * @param ptr pre-defined by the cURL API; see man 3 curl for mre info
961 * @param size pre-defined by the cURL API; see man 3 curl for mre info
962 * @param nmemb pre-defined by the cURL API; see man 3 curl for mre info
963 * @param stream pre-defined by the cURL API; see man 3 curl for mre info
965 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream)
974 StrBufAppendBufPlain(Target, ptr, size * nmemb, 0);
981 * @brief extracts a substring from Source into dest
982 * @param dest buffer to place substring into
983 * @param Source string to copy substring from
984 * @param Offset chars to skip from start
985 * @param nChars number of chars to copy
986 * @returns the number of chars copied; may be different from nChars due to the size of Source
988 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars)
991 if (Offset > Source->BufUsed)
997 if (Offset + nChars < Source->BufUsed)
999 if (nChars >= dest->BufSize)
1000 IncreaseBuf(dest, 0, nChars + 1);
1001 memcpy(dest->buf, Source->buf + Offset, nChars);
1002 dest->BufUsed = nChars;
1003 dest->buf[dest->BufUsed] = '\0';
1006 NCharsRemain = Source->BufUsed - Offset;
1007 if (NCharsRemain >= dest->BufSize)
1008 IncreaseBuf(dest, 0, NCharsRemain + 1);
1009 memcpy(dest->buf, Source->buf + Offset, NCharsRemain);
1010 dest->BufUsed = NCharsRemain;
1011 dest->buf[dest->BufUsed] = '\0';
1012 return NCharsRemain;
1017 * @brief Cut nChars from the start of the string
1018 * @param Buf Buffer to modify
1019 * @param nChars how many chars should be skipped?
1021 void StrBufCutLeft(StrBuf *Buf, int nChars)
1023 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1024 if (nChars >= Buf->BufUsed) {
1028 memmove(Buf->buf, Buf->buf + nChars, Buf->BufUsed - nChars);
1029 Buf->BufUsed -= nChars;
1030 Buf->buf[Buf->BufUsed] = '\0';
1035 * @brief Cut the trailing n Chars from the string
1036 * @param Buf Buffer to modify
1037 * @param nChars how many chars should be trunkated?
1039 void StrBufCutRight(StrBuf *Buf, int nChars)
1041 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1042 if (nChars >= Buf->BufUsed) {
1046 Buf->BufUsed -= nChars;
1047 Buf->buf[Buf->BufUsed] = '\0';
1052 * @brief Cut the string after n Chars
1053 * @param Buf Buffer to modify
1054 * @param AfternChars after how many chars should we trunkate the string?
1055 * @param At if non-null and points inside of our string, cut it there.
1057 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At)
1059 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1061 AfternChars = At - Buf->buf;
1064 if ((AfternChars < 0) || (AfternChars >= Buf->BufUsed))
1066 Buf->BufUsed = AfternChars;
1067 Buf->buf[Buf->BufUsed] = '\0';
1073 * @brief Strip leading and trailing spaces from a string; with premeasured and adjusted length.
1074 * @param Buf the string to modify
1076 void StrBufTrim(StrBuf *Buf)
1079 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1081 while ((Buf->BufUsed > 0) &&
1082 isspace(Buf->buf[Buf->BufUsed - 1]))
1086 Buf->buf[Buf->BufUsed] = '\0';
1088 if (Buf->BufUsed == 0) return;
1090 while ((Buf->BufUsed > delta) && (isspace(Buf->buf[delta]))){
1093 if (delta > 0) StrBufCutLeft(Buf, delta);
1097 * @brief changes all spaces in the string (tab, linefeed...) to Blank (0x20)
1098 * @param Buf the string to modify
1100 void StrBufSpaceToBlank(StrBuf *Buf)
1104 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1107 pche = pch + Buf->BufUsed;
1116 void StrBufStripAllBut(StrBuf *Buf, char leftboundary, char rightboundary)
1124 pLeft = pBuff = Buf->buf;
1125 while (pBuff != NULL) {
1127 pBuff = strchr(pBuff, leftboundary);
1136 pRight = strchr(pBuff, rightboundary);
1138 StrBufCutAt(Buf, 0, pRight);
1140 StrBufCutLeft(Buf, pLeft - Buf->buf);
1145 * @ingroup StrBuf_Filler
1146 * @brief uppercase the contents of a buffer
1147 * @param Buf the buffer to translate
1149 void StrBufUpCase(StrBuf *Buf)
1153 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1156 pche = pch + Buf->BufUsed;
1157 while (pch < pche) {
1158 *pch = toupper(*pch);
1165 * @ingroup StrBuf_Filler
1166 * @brief lowercase the contents of a buffer
1167 * @param Buf the buffer to translate
1169 void StrBufLowerCase(StrBuf *Buf)
1173 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
1176 pche = pch + Buf->BufUsed;
1177 while (pch < pche) {
1178 *pch = tolower(*pch);
1184 /*******************************************************************************
1185 * a tokenizer that kills, maims, and destroys *
1186 *******************************************************************************/
1189 * @ingroup StrBuf_Tokenizer
1190 * @brief Replace a token at a given place with a given length by another token with given length
1191 * @param Buf String where to work on
1192 * @param where where inside of the Buf is the search-token
1193 * @param HowLong How long is the token to be replaced
1194 * @param Repl Token to insert at 'where'
1195 * @param ReplLen Length of repl
1196 * @returns -1 if fail else length of resulting Buf
1198 int StrBufReplaceToken(StrBuf *Buf, long where, long HowLong,
1199 const char *Repl, long ReplLen)
1202 if ((Buf == NULL) ||
1203 (where > Buf->BufUsed) ||
1204 (where + HowLong > Buf->BufUsed))
1207 if (where + ReplLen - HowLong > Buf->BufSize)
1208 if (IncreaseBuf(Buf, 1, Buf->BufUsed + ReplLen) < 0)
1211 memmove(Buf->buf + where + ReplLen,
1212 Buf->buf + where + HowLong,
1213 Buf->BufUsed - where - HowLong);
1215 memcpy(Buf->buf + where,
1218 Buf->BufUsed += ReplLen - HowLong;
1220 return Buf->BufUsed;
1224 * @ingroup StrBuf_Tokenizer
1225 * @brief Counts the numbmer of tokens in a buffer
1226 * @param source String to count tokens in
1227 * @param tok Tokenizer char to count
1228 * @returns numbers of tokenizer chars found
1230 int StrBufNum_tokens(const StrBuf *source, char tok)
1234 if ((source == NULL) || (source->BufUsed == 0))
1236 if ((source->BufUsed == 1) && (*source->buf == tok))
1240 pche = pch + source->BufUsed;
1251 * @ingroup StrBuf_Tokenizer
1252 * @brief a string tokenizer
1253 * @param Source StringBuffer to read into
1254 * @param parmnum n'th Parameter to remove
1255 * @param separator tokenizer character
1256 * @returns -1 if not found, else length of token.
1258 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator)
1261 char *d, *s, *end; /* dest, source */
1264 /* Find desired @parameter */
1265 end = Source->buf + Source->BufUsed;
1267 while ((d <= end) &&
1270 /* End of string, bail! */
1275 if (*d == separator) {
1280 if ((d == NULL) || (d >= end))
1281 return 0; /* @Parameter not found */
1283 /* Find next @parameter */
1285 while ((s <= end) &&
1286 (*s && *s != separator))
1290 if (*s == separator)
1294 /* Hack and slash */
1299 memmove(d, s, Source->BufUsed - (s - Source->buf));
1300 Source->BufUsed += ReducedBy;
1301 Source->buf[Source->BufUsed] = '\0';
1303 else if (d == Source->buf) {
1305 Source->BufUsed = 0;
1309 Source->BufUsed += ReducedBy;
1322 * @ingroup StrBuf_Tokenizer
1323 * @brief a string tokenizer
1324 * @param dest Destination StringBuffer
1325 * @param Source StringBuffer to read into
1326 * @param parmnum n'th Parameter to extract
1327 * @param separator tokenizer character
1328 * @returns -1 if not found, else length of token.
1330 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator)
1332 const char *s, *e; //* source * /
1333 int len = 0; //* running total length of extracted string * /
1334 int current_token = 0; //* token currently being processed * /
1337 dest->buf[0] = '\0';
1343 if ((Source == NULL) || (Source->BufUsed ==0)) {
1347 e = s + Source->BufUsed;
1350 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1352 while ((s < e) && !IsEmptyStr(s)) {
1353 if (*s == separator) {
1356 if (len >= dest->BufSize) {
1357 dest->BufUsed = len;
1358 if (IncreaseBuf(dest, 1, -1) < 0) {
1363 if ( (current_token == parmnum) &&
1364 (*s != separator)) {
1365 dest->buf[len] = *s;
1368 else if (current_token > parmnum) {
1374 dest->buf[len] = '\0';
1375 dest->BufUsed = len;
1377 if (current_token < parmnum) {
1378 //lprintf (CTDL_DEBUG,"test <!: %s\n", dest);
1381 //lprintf (CTDL_DEBUG,"test <: %d; %s\n", len, dest);
1390 * @ingroup StrBuf_Tokenizer
1391 * @brief a string tokenizer to fetch an integer
1392 * @param Source String containing tokens
1393 * @param parmnum n'th Parameter to extract
1394 * @param separator tokenizer character
1395 * @returns 0 if not found, else integer representation of the token
1397 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator)
1407 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1414 * @ingroup StrBuf_Tokenizer
1415 * @brief a string tokenizer to fetch a long integer
1416 * @param Source String containing tokens
1417 * @param parmnum n'th Parameter to extract
1418 * @param separator tokenizer character
1419 * @returns 0 if not found, else long integer representation of the token
1421 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator)
1431 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1439 * @ingroup StrBuf_Tokenizer
1440 * @brief a string tokenizer to fetch an unsigned long
1441 * @param Source String containing tokens
1442 * @param parmnum n'th Parameter to extract
1443 * @param separator tokenizer character
1444 * @returns 0 if not found, else unsigned long representation of the token
1446 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator)
1457 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0) {
1461 return (unsigned long) atol(pnum);
1470 * @ingroup StrBuf_NextTokenizer
1471 * @brief a string tokenizer; Bounds checker
1472 * function to make shure whether StrBufExtract_NextToken and friends have reached the end of the string.
1473 * @param Source our tokenbuffer
1474 * @param pStart the token iterator pointer to inspect
1475 * @returns whether the revolving pointer is inside of the search range
1477 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart)
1479 if ((Source == NULL) ||
1480 (*pStart == StrBufNOTNULL) ||
1481 (Source->BufUsed == 0))
1485 if (*pStart == NULL)
1489 else if (*pStart > Source->buf + Source->BufUsed)
1493 else if (*pStart <= Source->buf)
1502 * @ingroup StrBuf_NextTokenizer
1503 * @brief a string tokenizer
1504 * @param dest Destination StringBuffer
1505 * @param Source StringBuffer to read into
1506 * @param pStart pointer to the end of the last token. Feed with NULL on start.
1507 * @param separator tokenizer
1508 * @returns -1 if not found, else length of token.
1510 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator)
1512 const char *s; /* source */
1513 const char *EndBuffer; /* end stop of source buffer */
1514 int current_token = 0; /* token currently being processed */
1515 int len = 0; /* running total length of extracted string */
1517 if ((Source == NULL) ||
1518 (Source->BufUsed == 0) )
1520 *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
1806 * @param PlainInLen way in from plain old c strings; maybe you've got binary data or know the length?
1808 void StrBufHexEscAppend(StrBuf *OutBuf, const StrBuf *In, const unsigned char *PlainIn, long PlainInLen)
1810 const unsigned char *pch, *pche;
1814 if (((In == NULL) && (PlainIn == NULL)) || (OutBuf == NULL) )
1816 if (PlainIn != NULL) {
1818 len = strlen((const char*)PlainIn);
1825 pch = (const unsigned char*)In->buf;
1826 pche = pch + In->BufUsed;
1833 pt = OutBuf->buf + OutBuf->BufUsed;
1834 pte = OutBuf->buf + OutBuf->BufSize - 3; /**< we max append 3 chars at once plus the \0 */
1836 while (pch < pche) {
1838 IncreaseBuf(OutBuf, 1, -1);
1839 pte = OutBuf->buf + OutBuf->BufSize - 3; /**< we max append 3 chars at once plus the \0 */
1840 pt = OutBuf->buf + OutBuf->BufUsed;
1843 *pt = HexList[*pch][0];
1845 *pt = HexList[*pch][1];
1846 pt ++; pch ++; OutBuf->BufUsed += 2;
1852 * @ingroup StrBuf_DeEnCoder
1853 * @brief append a string in hex encoding to the buffer
1854 * @param OutBuf the output buffer
1855 * @param In Buffer to encode
1856 * @param PlainIn way in from plain old c strings
1858 void StrBufHexescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn)
1860 StrBufHexEscAppend(OutBuf, In, (const unsigned char*) PlainIn, -1);
1864 * @ingroup StrBuf_DeEnCoder
1865 * @brief Append a string, escaping characters which have meaning in HTML.
1867 * @param Target target buffer
1868 * @param Source source buffer; set to NULL if you just have a C-String
1869 * @param PlainIn Plain-C string to append; set to NULL if unused
1870 * @param nbsp If nonzero, spaces are converted to non-breaking spaces.
1871 * @param nolinebreaks if set to 1, linebreaks are removed from the string.
1872 * if set to 2, linebreaks are replaced by <br/>
1874 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
1876 const char *aptr, *eiptr;
1880 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1883 if (PlainIn != NULL) {
1885 len = strlen(PlainIn);
1890 eiptr = aptr + Source->BufUsed;
1891 len = Source->BufUsed;
1897 bptr = Target->buf + Target->BufUsed;
1898 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
1900 while (aptr < eiptr){
1902 IncreaseBuf(Target, 1, -1);
1903 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
1904 bptr = Target->buf + Target->BufUsed;
1907 memcpy(bptr, "<", 4);
1909 Target->BufUsed += 4;
1911 else if (*aptr == '>') {
1912 memcpy(bptr, ">", 4);
1914 Target->BufUsed += 4;
1916 else if (*aptr == '&') {
1917 memcpy(bptr, "&", 5);
1919 Target->BufUsed += 5;
1921 else if (*aptr == '"') {
1922 memcpy(bptr, """, 6);
1924 Target->BufUsed += 6;
1926 else if (*aptr == '\'') {
1927 memcpy(bptr, "'", 5);
1929 Target->BufUsed += 5;
1931 else if (*aptr == LB) {
1936 else if (*aptr == RB) {
1941 else if (*aptr == QU) {
1946 else if ((*aptr == 32) && (nbsp == 1)) {
1947 memcpy(bptr, " ", 6);
1949 Target->BufUsed += 6;
1951 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
1952 *bptr='\0'; /* nothing */
1954 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
1955 memcpy(bptr, "<br/>", 11);
1957 Target->BufUsed += 11;
1961 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
1962 *bptr='\0'; /* nothing */
1972 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
1974 return Target->BufUsed;
1978 * @ingroup StrBuf_DeEnCoder
1979 * @brief Append a string, escaping characters which have meaning in HTML.
1980 * Converts linebreaks into blanks; escapes single quotes
1981 * @param Target target buffer
1982 * @param Source source buffer; set to NULL if you just have a C-String
1983 * @param PlainIn Plain-C string to append; set to NULL if unused
1985 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
1987 const char *aptr, *eiptr;
1991 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
1994 if (PlainIn != NULL) {
1996 len = strlen(PlainIn);
2001 eiptr = aptr + Source->BufUsed;
2002 len = Source->BufUsed;
2008 eptr = Target->buf + Target->BufSize - 8;
2009 tptr = Target->buf + Target->BufUsed;
2011 while (aptr < eiptr){
2013 IncreaseBuf(Target, 1, -1);
2014 eptr = Target->buf + Target->BufSize - 8;
2015 tptr = Target->buf + Target->BufUsed;
2018 if (*aptr == '\n') {
2022 else if (*aptr == '\r') {
2026 else if (*aptr == '\'') {
2032 Target->BufUsed += 5;
2045 * @ingroup StrBuf_DeEnCoder
2046 * @brief Append a string, escaping characters which have meaning in ICAL.
2048 * @param Target target buffer
2049 * @param Source source buffer; set to NULL if you just have a C-String
2050 * @param PlainIn Plain-C string to append; set to NULL if unused
2052 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
2054 const char *aptr, *eiptr;
2058 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2061 if (PlainIn != NULL) {
2063 len = strlen(PlainIn);
2068 eiptr = aptr + Source->BufUsed;
2069 len = Source->BufUsed;
2075 eptr = Target->buf + Target->BufSize - 8;
2076 tptr = Target->buf + Target->BufUsed;
2078 while (aptr < eiptr){
2079 if(tptr + 3 >= eptr) {
2080 IncreaseBuf(Target, 1, -1);
2081 eptr = Target->buf + Target->BufSize - 8;
2082 tptr = Target->buf + Target->BufUsed;
2085 if (*aptr == '\n') {
2092 else if (*aptr == '\r') {
2099 else if (*aptr == ',') {
2115 * @ingroup StrBuf_DeEnCoder
2116 * @brief Append a string, escaping characters which have meaning in JavaScript strings .
2118 * @param Target target buffer
2119 * @param Source source buffer; set to NULL if you just have a C-String
2120 * @param PlainIn Plain-C string to append; set to NULL if unused
2121 * @returns size of result or -1
2123 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
2125 const char *aptr, *eiptr;
2129 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2132 if (PlainIn != NULL) {
2134 len = strlen(PlainIn);
2139 eiptr = aptr + Source->BufUsed;
2140 len = Source->BufUsed;
2146 bptr = Target->buf + Target->BufUsed;
2147 eptr = Target->buf + Target->BufSize - 3; /* our biggest unit to put in... */
2149 while (aptr < eiptr){
2151 IncreaseBuf(Target, 1, -1);
2152 eptr = Target->buf + Target->BufSize - 3;
2153 bptr = Target->buf + Target->BufUsed;
2160 Target->BufUsed += 2;
2161 } else if (*aptr == '\\') {
2166 Target->BufUsed += 2;
2176 if ((bptr == eptr - 1 ) && !IsEmptyStr(aptr) )
2178 return Target->BufUsed;
2182 * @ingroup StrBuf_DeEnCoder
2183 * @brief Append a string, escaping characters which have meaning in HTML + json.
2185 * @param Target target buffer
2186 * @param Source source buffer; set to NULL if you just have a C-String
2187 * @param PlainIn Plain-C string to append; set to NULL if unused
2188 * @param nbsp If nonzero, spaces are converted to non-breaking spaces.
2189 * @param nolinebreaks if set to 1, linebreaks are removed from the string.
2190 * if set to 2, linebreaks are replaced by <br/>
2192 long StrHtmlEcmaEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
2194 const char *aptr, *eiptr;
2197 int IsUtf8Sequence = 0;
2199 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
2202 if (PlainIn != NULL) {
2204 len = strlen(PlainIn);
2209 eiptr = aptr + Source->BufUsed;
2210 len = Source->BufUsed;
2216 bptr = Target->buf + Target->BufUsed;
2217 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2219 while (aptr < eiptr){
2221 IncreaseBuf(Target, 1, -1);
2222 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2223 bptr = Target->buf + Target->BufUsed;
2226 memcpy(bptr, "<", 4);
2228 Target->BufUsed += 4;
2230 else if (*aptr == '>') {
2231 memcpy(bptr, ">", 4);
2233 Target->BufUsed += 4;
2235 else if (*aptr == '&') {
2236 memcpy(bptr, "&", 5);
2238 Target->BufUsed += 5;
2240 else if (*aptr == LB) {
2245 else if (*aptr == RB) {
2250 else if ((*aptr == 32) && (nbsp == 1)) {
2251 memcpy(bptr, " ", 6);
2253 Target->BufUsed += 6;
2255 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
2256 *bptr='\0'; /* nothing */
2258 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
2259 memcpy(bptr, "<br/>", 11);
2261 Target->BufUsed += 11;
2264 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
2265 *bptr='\0'; /* nothing */
2268 else if ((*aptr == '"') || (*aptr == QU)) {
2273 Target->BufUsed += 2;
2274 } else if (*aptr == '\\') {
2279 Target->BufUsed += 2;
2282 if (((unsigned char)*aptr) >= 0x20)
2284 IsUtf8Sequence = Ctdl_GetUtf8SequenceLength(aptr, eiptr);
2288 while (IsUtf8Sequence > 1){
2289 if(bptr + IsUtf8Sequence >= eptr) {
2290 IncreaseBuf(Target, 1, -1);
2291 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
2292 bptr = Target->buf + Target->BufUsed - 1;
2306 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
2308 return Target->BufUsed;
2312 * @ingroup StrBuf_DeEnCoder
2313 * @brief unhide special chars hidden to the HTML escaper
2314 * @param target buffer to put the unescaped string in
2315 * @param source buffer to unescape
2317 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source)
2323 FlushStrBuf(target);
2325 if (source == NULL ||target == NULL)
2330 len = source->BufUsed;
2331 for (a = 0; a < len; ++a) {
2332 if (target->BufUsed >= target->BufSize)
2333 IncreaseBuf(target, 1, -1);
2335 if (source->buf[a] == '=') {
2336 hex[0] = source->buf[a + 1];
2337 hex[1] = source->buf[a + 2];
2340 sscanf(hex, "%02x", &b);
2341 target->buf[target->BufUsed] = b;
2342 target->buf[++target->BufUsed] = 0;
2346 target->buf[target->BufUsed] = source->buf[a];
2347 target->buf[++target->BufUsed] = 0;
2354 * @ingroup StrBuf_DeEnCoder
2355 * @brief hide special chars from the HTML escapers and friends
2356 * @param target buffer to put the escaped string in
2357 * @param source buffer to escape
2359 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source)
2364 FlushStrBuf(target);
2366 if (source == NULL ||target == NULL)
2371 len = source->BufUsed;
2372 for (i=0; i<len; ++i) {
2373 if (target->BufUsed + 4 >= target->BufSize)
2374 IncreaseBuf(target, 1, -1);
2375 if ( (isalnum(source->buf[i])) ||
2376 (source->buf[i]=='-') ||
2377 (source->buf[i]=='_') ) {
2378 target->buf[target->BufUsed++] = source->buf[i];
2381 sprintf(&target->buf[target->BufUsed],
2383 (0xFF &source->buf[i]));
2384 target->BufUsed += 3;
2387 target->buf[target->BufUsed + 1] = '\0';
2391 /*******************************************************************************
2392 * Quoted Printable de/encoding *
2393 *******************************************************************************/
2396 * @ingroup StrBuf_DeEnCoder
2397 * @brief decode a buffer from base 64 encoding; destroys original
2398 * @param Buf Buffor to transform
2400 int StrBufDecodeBase64(StrBuf *Buf)
2404 if (Buf == NULL) return -1;
2406 xferbuf = (char*) malloc(Buf->BufSize);
2408 siz = CtdlDecodeBase64(xferbuf,
2418 * @ingroup StrBuf_DeEnCoder
2419 * @brief decode a buffer from base 64 encoding; destroys original
2420 * @param Buf Buffor to transform
2422 int StrBufDecodeHex(StrBuf *Buf)
2425 char *pch, *pche, *pchi;
2427 if (Buf == NULL) return -1;
2429 pch = pchi = Buf->buf;
2430 pche = pch + Buf->BufUsed;
2432 while (pchi < pche){
2433 ch = decode_hex(pchi);
2440 Buf->BufUsed = pch - Buf->buf;
2441 return Buf->BufUsed;
2445 * @ingroup StrBuf_DeEnCoder
2446 * @brief replace all chars >0x20 && < 0x7F with Mute
2447 * @param Mute char to put over invalid chars
2448 * @param Buf Buffor to transform
2450 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute)
2454 if (Buf == NULL) return -1;
2455 pch = (unsigned char *)Buf->buf;
2456 while (pch < (unsigned char *)Buf->buf + Buf->BufUsed) {
2457 if ((*pch < 0x20) || (*pch > 0x7F))
2461 return Buf->BufUsed;
2466 * @ingroup StrBuf_DeEnCoder
2467 * @brief remove escaped strings from i.e. the url string (like %20 for blanks)
2468 * @param Buf Buffer to translate
2469 * @param StripBlanks Reduce several blanks to one?
2471 long StrBufUnescape(StrBuf *Buf, int StripBlanks)
2480 while ((Buf->BufUsed > 0) && (isspace(Buf->buf[Buf->BufUsed - 1]))){
2481 Buf->buf[Buf->BufUsed - 1] = '\0';
2486 while (a < Buf->BufUsed) {
2487 if (Buf->buf[a] == '+')
2489 else if (Buf->buf[a] == '%') {
2490 /* don't let % chars through, rather truncate the input. */
2491 if (a + 2 > Buf->BufUsed) {
2496 hex[0] = Buf->buf[a + 1];
2497 hex[1] = Buf->buf[a + 2];
2500 sscanf(hex, "%02x", &b);
2501 Buf->buf[a] = (char) b;
2502 len = Buf->BufUsed - a - 2;
2504 memmove(&Buf->buf[a + 1], &Buf->buf[a + 3], len);
2516 * @ingroup StrBuf_DeEnCoder
2517 * @brief RFC2047-encode a header field if necessary.
2518 * If no non-ASCII characters are found, the string
2519 * will be copied verbatim without encoding.
2521 * @param target Target buffer.
2522 * @param source Source string to be encoded.
2523 * @returns encoded length; -1 if non success.
2525 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source)
2527 const char headerStr[] = "=?UTF-8?Q?";
2528 int need_to_encode = 0;
2532 if ((source == NULL) ||
2536 while ((i < source->BufUsed) &&
2537 (!IsEmptyStr (&source->buf[i])) &&
2538 (need_to_encode == 0)) {
2539 if (((unsigned char) source->buf[i] < 32) ||
2540 ((unsigned char) source->buf[i] > 126)) {
2546 if (!need_to_encode) {
2547 if (*target == NULL) {
2548 *target = NewStrBufPlain(source->buf, source->BufUsed);
2551 FlushStrBuf(*target);
2552 StrBufAppendBuf(*target, source, 0);
2554 return (*target)->BufUsed;
2556 if (*target == NULL)
2557 *target = NewStrBufPlain(NULL, sizeof(headerStr) + source->BufUsed * 2);
2558 else if (sizeof(headerStr) + source->BufUsed >= (*target)->BufSize)
2559 IncreaseBuf(*target, sizeof(headerStr) + source->BufUsed, 0);
2560 memcpy ((*target)->buf, headerStr, sizeof(headerStr) - 1);
2561 (*target)->BufUsed = sizeof(headerStr) - 1;
2562 for (i=0; (i < source->BufUsed); ++i) {
2563 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2564 IncreaseBuf(*target, 1, 0);
2565 ch = (unsigned char) source->buf[i];
2566 if ((ch < 32) || (ch > 126) || (ch == 61)) {
2567 sprintf(&(*target)->buf[(*target)->BufUsed], "=%02X", ch);
2568 (*target)->BufUsed += 3;
2571 (*target)->buf[(*target)->BufUsed] = ch;
2572 (*target)->BufUsed++;
2576 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2577 IncreaseBuf(*target, 1, 0);
2579 (*target)->buf[(*target)->BufUsed++] = '?';
2580 (*target)->buf[(*target)->BufUsed++] = '=';
2581 (*target)->buf[(*target)->BufUsed] = '\0';
2582 return (*target)->BufUsed;;
2587 static void AddRecipient(StrBuf *Target,
2589 StrBuf *EmailAddress,
2594 if (StrLength(Target) > 0) StrBufAppendBufPlain(Target, HKEY(", "), 0);
2595 if (strchr(ChrPtr(UserName), ',') != NULL) QuoteMe = 1;
2597 if (QuoteMe) StrBufAppendBufPlain(Target, HKEY("\""), 0);
2598 StrBufRFC2047encode(&EncBuf, UserName);
2599 StrBufAppendBuf(Target, EncBuf, 0);
2600 if (QuoteMe) StrBufAppendBufPlain(Target, HKEY("\" "), 0);
2601 else StrBufAppendBufPlain(Target, HKEY(" "), 0);
2603 if (StrLength(EmailAddress) > 0){
2604 StrBufAppendBufPlain(Target, HKEY("<"), 0);
2605 StrBufAppendBuf(Target, EmailAddress, 0); /* TODO: what about IDN???? */
2606 StrBufAppendBufPlain(Target, HKEY(">"), 0);
2612 * \brief QP encode parts of an email TO/CC/BCC vector, and strip/filter invalid parts
2613 * \param Recp Source list of email recipients
2614 * \param UserName Temporary buffer for internal use; Please provide valid buffer.
2615 * \param EmailAddress Temporary buffer for internal use; Please provide valid buffer.
2616 * \param EncBuf Temporary buffer for internal use; Please provide valid buffer.
2617 * \returns encoded & sanitized buffer with the contents of Recp; Caller owns this memory.
2619 StrBuf *StrBufSanitizeEmailRecipientVector(const StrBuf *Recp,
2621 StrBuf *EmailAddress,
2627 const char *pch, *pche;
2628 const char *UserStart, *UserEnd, *EmailStart, *EmailEnd, *At;
2630 if ((Recp == NULL) || (StrLength(Recp) == 0))
2635 pche = pch + StrLength(Recp);
2637 if (!CheckEncode(pch, -1, pche))
2638 return NewStrBufDup(Recp);
2640 Target = NewStrBufPlain(NULL, StrLength(Recp));
2642 while ((pch != NULL) && (pch < pche))
2646 while (isspace(*pch)) pch++;
2647 UserStart = UserEnd = EmailStart = EmailEnd = NULL;
2649 if ((*pch == '"') || (*pch == '\'')) {
2650 UserStart = pch + 1;
2652 UserEnd = strchr(UserStart, *pch);
2653 if (UserEnd == NULL)
2654 break; ///TODO: Userfeedback??
2655 EmailStart = UserEnd + 1;
2656 while (isspace(*EmailStart))
2658 if (UserEnd == UserStart) {
2659 UserStart = UserEnd = NULL;
2662 if (*EmailStart == '<') {
2664 EmailEnd = strchr(EmailStart, '>');
2665 if (EmailEnd == NULL)
2666 EmailEnd = strchr(EmailStart, ',');
2670 EmailEnd = strchr(EmailStart, ',');
2672 if (EmailEnd == NULL)
2680 EmailEnd = strchr(UserStart, ',');
2681 if (EmailEnd == NULL) {
2682 EmailEnd = strchr(pch, '>');
2684 if (EmailEnd != NULL) {
2694 while ((EmailEnd > UserStart) && !gt &&
2695 ((*EmailEnd == ',') ||
2696 (*EmailEnd == '>') ||
2697 (isspace(*EmailEnd))))
2699 if (*EmailEnd == '>')
2704 if (EmailEnd == UserStart)
2708 EmailStart = strchr(UserStart, '<');
2709 if ((EmailStart == NULL) || (EmailStart > EmailEnd))
2711 UserEnd = EmailStart;
2713 while ((UserEnd > UserStart) &&
2714 isspace (*(UserEnd - 1)))
2717 if (UserStart >= UserEnd)
2718 UserStart = UserEnd = NULL;
2719 At = strchr(EmailStart, '@');
2721 else { /* this is a local recipient... no domain, just a realname */
2722 EmailStart = UserStart;
2723 At = strchr(EmailStart, '@');
2729 EmailStart = UserStart;
2735 if ((UserStart != NULL) && (UserEnd != NULL))
2736 StrBufPlain(UserName, UserStart, UserEnd - UserStart);
2737 else if ((UserStart != NULL) && (UserEnd == NULL))
2738 StrBufPlain(UserName, UserStart, UserEnd - UserStart);
2740 FlushStrBuf(UserName);
2742 if ((EmailStart != NULL) && (EmailEnd != NULL))
2743 StrBufPlain(EmailAddress, EmailStart, EmailEnd - EmailStart);
2744 else if ((EmailStart != NULL) && (EmailEnd == NULL))
2745 StrBufPlain(EmailAddress, EmailStart, EmailEnd - pche);
2747 FlushStrBuf(EmailAddress);
2749 AddRecipient(Target, UserName, EmailAddress, EncBuf);
2754 if ((pch != NULL) && (*pch == ','))
2756 if (pch != NULL) while (isspace(*pch))
2765 * @brief replaces all occurances of 'search' by 'replace'
2766 * @param buf Buffer to modify
2767 * @param search character to search
2768 * @param replace character to replace search by
2770 void StrBufReplaceChars(StrBuf *buf, char search, char replace)
2775 for (i=0; i<buf->BufUsed; i++)
2776 if (buf->buf[i] == search)
2777 buf->buf[i] = replace;
2783 * @brief removes all \r s from the string, or replaces them with \n if its not a combination of both.
2784 * @param buf Buffer to modify
2786 void StrBufToUnixLF(StrBuf *buf)
2788 char *pche, *pchS, *pchT;
2792 pche = buf->buf + buf->BufUsed;
2793 pchS = pchT = buf->buf;
2799 if (*pchS != '\n') {
2808 buf->BufUsed = pchT - buf->buf;
2812 /*******************************************************************************
2813 * Iconv Wrapper; RFC822 de/encoding *
2814 *******************************************************************************/
2817 * @ingroup StrBuf_DeEnCoder
2818 * @brief Wrapper around iconv_open()
2819 * Our version adds aliases for non-standard Microsoft charsets
2820 * such as 'MS950', aliasing them to names like 'CP950'
2822 * @param tocode Target encoding
2823 * @param fromcode Source encoding
2824 * @param pic anonimized pointer to iconv struct
2826 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic)
2829 iconv_t ic = (iconv_t)(-1) ;
2830 ic = iconv_open(tocode, fromcode);
2831 if (ic == (iconv_t)(-1) ) {
2832 char alias_fromcode[64];
2833 if ( (strlen(fromcode) == 5) && (!strncasecmp(fromcode, "MS", 2)) ) {
2834 safestrncpy(alias_fromcode, fromcode, sizeof alias_fromcode);
2835 alias_fromcode[0] = 'C';
2836 alias_fromcode[1] = 'P';
2837 ic = iconv_open(tocode, alias_fromcode);
2840 *(iconv_t *)pic = ic;
2846 * @ingroup StrBuf_DeEnCoder
2847 * @brief find one chunk of a RFC822 encoded string
2848 * @param Buffer where to search
2849 * @param bptr where to start searching
2850 * @returns found position, NULL if none.
2852 static inline const char *FindNextEnd (const StrBuf *Buf, const char *bptr)
2855 /* Find the next ?Q? */
2856 if (Buf->BufUsed - (bptr - Buf->buf) < 6)
2859 end = strchr(bptr + 2, '?');
2864 if ((Buf->BufUsed - (end - Buf->buf) > 3) &&
2865 (((*(end + 1) == 'B') || (*(end + 1) == 'Q')) ||
2866 ((*(end + 1) == 'b') || (*(end + 1) == 'q'))) &&
2867 (*(end + 2) == '?')) {
2868 /* skip on to the end of the cluster, the next ?= */
2869 end = strstr(end + 3, "?=");
2872 /* sort of half valid encoding, try to find an end. */
2873 end = strstr(bptr, "?=");
2880 * @ingroup StrBuf_DeEnCoder
2881 * @brief convert one buffer according to the preselected iconv pointer PIC
2882 * @param ConvertBuf buffer we need to translate
2883 * @param TmpBuf To share a workbuffer over several iterations. prepare to have it filled with useless stuff afterwards.
2884 * @param pic Pointer to the iconv-session Object
2886 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic)
2892 char *ibuf; /**< Buffer of characters to be converted */
2893 char *obuf; /**< Buffer for converted characters */
2894 size_t ibuflen; /**< Length of input buffer */
2895 size_t obuflen; /**< Length of output buffer */
2898 /* since we're converting to utf-8, one glyph may take up to 6 bytes */
2899 if (ConvertBuf->BufUsed * 6 >= TmpBuf->BufSize)
2900 IncreaseBuf(TmpBuf, 0, ConvertBuf->BufUsed * 6);
2902 ic = *(iconv_t*)pic;
2903 ibuf = ConvertBuf->buf;
2904 ibuflen = ConvertBuf->BufUsed;
2906 obuflen = TmpBuf->BufSize;
2908 siz = iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
2911 if (errno == E2BIG) {
2913 IncreaseBuf(TmpBuf, 0, 0);
2918 else if (errno == EILSEQ){
2919 /* hm, invalid utf8 sequence... what to do now? */
2920 /* An invalid multibyte sequence has been encountered in the input */
2922 else if (errno == EINVAL) {
2923 /* An incomplete multibyte sequence has been encountered in the input. */
2926 FlushStrBuf(TmpBuf);
2929 TmpBuf->BufUsed = TmpBuf->BufSize - obuflen;
2930 TmpBuf->buf[TmpBuf->BufUsed] = '\0';
2932 /* little card game: wheres the red lady? */
2933 SwapBuffers(ConvertBuf, TmpBuf);
2934 FlushStrBuf(TmpBuf);
2941 * @ingroup StrBuf_DeEnCoder
2942 * @brief catches one RFC822 encoded segment, and decodes it.
2943 * @param Target buffer to fill with result
2944 * @param DecodeMe buffer with stuff to process
2945 * @param SegmentStart points to our current segment in DecodeMe
2946 * @param SegmentEnd Points to the end of our current segment in DecodeMe
2947 * @param ConvertBuf Workbuffer shared between several iterations. Random content; needs to be valid
2948 * @param ConvertBuf2 Workbuffer shared between several iterations. Random content; needs to be valid
2949 * @param FoundCharset Characterset to default decoding to; if we find another we will overwrite it.
2951 inline static void DecodeSegment(StrBuf *Target,
2952 const StrBuf *DecodeMe,
2953 const char *SegmentStart,
2954 const char *SegmentEnd,
2956 StrBuf *ConvertBuf2,
2957 StrBuf *FoundCharset)
2963 iconv_t ic = (iconv_t)(-1);
2967 /* Now we handle foreign character sets properly encoded
2968 * in RFC2047 format.
2970 StaticBuf.buf = (char*) SegmentStart; /*< it will just be read there... */
2971 StaticBuf.BufUsed = SegmentEnd - SegmentStart;
2972 StaticBuf.BufSize = DecodeMe->BufSize - (SegmentStart - DecodeMe->buf);
2973 extract_token(charset, SegmentStart, 1, '?', sizeof charset);
2974 if (FoundCharset != NULL) {
2975 FlushStrBuf(FoundCharset);
2976 StrBufAppendBufPlain(FoundCharset, charset, -1, 0);
2978 extract_token(encoding, SegmentStart, 2, '?', sizeof encoding);
2979 StrBufExtract_token(ConvertBuf, &StaticBuf, 3, '?');
2981 *encoding = toupper(*encoding);
2982 if (*encoding == 'B') { /**< base64 */
2983 if (ConvertBuf2->BufSize < ConvertBuf->BufUsed)
2984 IncreaseBuf(ConvertBuf2, 0, ConvertBuf->BufUsed);
2985 ConvertBuf2->BufUsed = CtdlDecodeBase64(ConvertBuf2->buf,
2987 ConvertBuf->BufUsed);
2989 else if (*encoding == 'Q') { /**< quoted-printable */
2993 while (pos < ConvertBuf->BufUsed)
2995 if (ConvertBuf->buf[pos] == '_')
2996 ConvertBuf->buf[pos] = ' ';
3000 if (ConvertBuf2->BufSize < ConvertBuf->BufUsed)
3001 IncreaseBuf(ConvertBuf2, 0, ConvertBuf->BufUsed);
3003 ConvertBuf2->BufUsed = CtdlDecodeQuotedPrintable(
3006 ConvertBuf->BufUsed);
3009 StrBufAppendBuf(ConvertBuf2, ConvertBuf, 0);
3012 ctdl_iconv_open("UTF-8", charset, &ic);
3013 if (ic != (iconv_t)(-1) ) {
3015 StrBufConvert(ConvertBuf2, ConvertBuf, &ic);
3016 StrBufAppendBuf(Target, ConvertBuf2, 0);
3021 StrBufAppendBufPlain(Target, HKEY("(unreadable)"), 0);
3027 * @ingroup StrBuf_DeEnCoder
3028 * @brief Handle subjects with RFC2047 encoding such as: [deprecated old syntax!]
3029 * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
3030 * @param Target where to put the decoded string to
3031 * @param DecodeMe buffer with encoded string
3032 * @param DefaultCharset if we don't find one, which should we use?
3033 * @param FoundCharset overrides DefaultCharset if non-empty; If we find a charset inside of the string,
3034 * put it here for later use where no string might be known.
3036 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset)
3039 StrBuf *ConvertBuf2;
3040 ConvertBuf = NewStrBufPlain(NULL, StrLength(DecodeMe));
3041 ConvertBuf2 = NewStrBufPlain(NULL, StrLength(DecodeMe));
3043 StrBuf_RFC822_2_Utf8(Target,
3049 FreeStrBuf(&ConvertBuf);
3050 FreeStrBuf(&ConvertBuf2);
3054 * @ingroup StrBuf_DeEnCoder
3055 * @brief Handle subjects with RFC2047 encoding such as:
3056 * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
3057 * @param Target where to put the decoded string to
3058 * @param DecodeMe buffer with encoded string
3059 * @param DefaultCharset if we don't find one, which should we use?
3060 * @param FoundCharset overrides DefaultCharset if non-empty; If we find a charset inside of the string,
3061 * put it here for later use where no string might be known.
3062 * @param ConvertBuf workbuffer. feed in, you shouldn't care about its content.
3063 * @param ConvertBuf2 workbuffer. feed in, you shouldn't care about its content.
3065 void StrBuf_RFC822_2_Utf8(StrBuf *Target,
3066 const StrBuf *DecodeMe,
3067 const StrBuf* DefaultCharset,
3068 StrBuf *FoundCharset,
3070 StrBuf *ConvertBuf2)
3072 StrBuf *DecodedInvalidBuf = NULL;
3073 const StrBuf *DecodeMee = DecodeMe;
3074 const char *start, *end, *next, *nextend, *ptr = NULL;
3076 iconv_t ic = (iconv_t)(-1) ;
3081 int illegal_non_rfc2047_encoding = 0;
3083 /* Sometimes, badly formed messages contain strings which were simply
3084 * written out directly in some foreign character set instead of
3085 * using RFC2047 encoding. This is illegal but we will attempt to
3086 * handle it anyway by converting from a user-specified default
3087 * charset to UTF-8 if we see any nonprintable characters.
3090 len = StrLength(DecodeMe);
3091 for (i=0; i<DecodeMe->BufUsed; ++i) {
3092 if ((DecodeMe->buf[i] < 32) || (DecodeMe->buf[i] > 126)) {
3093 illegal_non_rfc2047_encoding = 1;
3098 if ((illegal_non_rfc2047_encoding) &&
3099 (strcasecmp(ChrPtr(DefaultCharset), "UTF-8")) &&
3100 (strcasecmp(ChrPtr(DefaultCharset), "us-ascii")) )
3103 ctdl_iconv_open("UTF-8", ChrPtr(DefaultCharset), &ic);
3104 if (ic != (iconv_t)(-1) ) {
3105 DecodedInvalidBuf = NewStrBufDup(DecodeMe);
3106 StrBufConvert(DecodedInvalidBuf, ConvertBuf, &ic);///TODO: don't void const?
3107 DecodeMee = DecodedInvalidBuf;
3113 /* pre evaluate the first pair */
3114 nextend = end = NULL;
3115 len = StrLength(DecodeMee);
3116 start = strstr(DecodeMee->buf, "=?");
3117 eptr = DecodeMee->buf + DecodeMee->BufUsed;
3119 end = FindNextEnd (DecodeMee, start + 2);
3121 StrBufAppendBuf(Target, DecodeMee, 0);
3122 FreeStrBuf(&DecodedInvalidBuf);
3127 if (start != DecodeMee->buf) {
3130 nFront = start - DecodeMee->buf;
3131 StrBufAppendBufPlain(Target, DecodeMee->buf, nFront, 0);
3135 * Since spammers will go to all sorts of absurd lengths to get their
3136 * messages through, there are LOTS of corrupt headers out there.
3137 * So, prevent a really badly formed RFC2047 header from throwing
3138 * this function into an infinite loop.
3140 while ((start != NULL) &&
3147 DecodeSegment(Target,
3155 next = strstr(end, "=?");
3157 if ((next != NULL) &&
3159 nextend = FindNextEnd(DecodeMee, next);
3160 if (nextend == NULL)
3163 /* did we find two partitions */
3164 if ((next != NULL) &&
3168 while ((ptr < next) &&
3175 * did we find a gab just filled with blanks?
3176 * if not, copy its stuff over.
3180 StrBufAppendBufPlain(Target,
3186 /* our next-pair is our new first pair now. */
3192 nextend = DecodeMee->buf + DecodeMee->BufUsed;
3193 if ((end != NULL) && (end < nextend)) {
3195 while ( (ptr < nextend) &&
3202 StrBufAppendBufPlain(Target, end, nextend - end, 0);
3204 FreeStrBuf(&DecodedInvalidBuf);
3207 /*******************************************************************************
3208 * Manipulating UTF-8 Strings *
3209 *******************************************************************************/
3213 * @brief evaluate the length of an utf8 special character sequence
3214 * @param Char the character to examine
3215 * @returns width of utf8 chars in bytes
3217 static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE)
3222 while ((n < 8) && ((test & *CharS) != 0)) {
3226 if ((n > 6) || ((CharE - CharS) < n))
3233 * @brief detect whether this char starts an utf-8 encoded char
3234 * @param Char character to inspect
3235 * @returns yes or no
3237 static inline int Ctdl_IsUtf8SequenceStart(const char Char)
3239 /** 11??.???? indicates an UTF8 Sequence. */
3240 return ((Char & 0xC0) != 0);
3245 * @brief measure the number of glyphs in an UTF8 string...
3246 * @param Buf string to measure
3247 * @returns the number of glyphs in Buf
3249 long StrBuf_Utf8StrLen(StrBuf *Buf)
3255 if ((Buf == NULL) || (Buf->BufUsed == 0))
3258 eptr = Buf->buf + Buf->BufUsed;
3259 while ((aptr < eptr) && (*aptr != '\0')) {
3260 if (Ctdl_IsUtf8SequenceStart(*aptr)){
3261 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
3262 while ((aptr < eptr) && (*aptr++ != '\0')&& (m-- > 0) );
3275 * @brief cuts a string after maxlen glyphs
3276 * @param Buf string to cut to maxlen glyphs
3277 * @param maxlen how long may the string become?
3278 * @returns current length of the string
3280 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen)
3286 eptr = Buf->buf + Buf->BufUsed;
3287 while ((aptr < eptr) && (*aptr != '\0')) {
3288 if (Ctdl_IsUtf8SequenceStart(*aptr)){
3289 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
3290 while ((*aptr++ != '\0') && (m-- > 0));
3299 Buf->BufUsed = aptr - Buf->buf;
3300 return Buf->BufUsed;
3303 return Buf->BufUsed;
3311 /*******************************************************************************
3313 *******************************************************************************/
3316 #define DEF_MEM_LEVEL 8 /*< memlevel??? */
3317 #define OS_CODE 0x03 /*< unix */
3320 * @ingroup StrBuf_DeEnCoder
3321 * @brief uses the same calling syntax as compress2(), but it
3322 * creates a stream compatible with HTTP "Content-encoding: gzip"
3323 * @param dest compressed buffer
3324 * @param destLen length of the compresed data
3325 * @param source source to encode
3326 * @param sourceLen length of source to encode
3327 * @param level compression level
3329 int ZEXPORT compress_gzip(Bytef * dest,
3331 const Bytef * source,
3335 const int gz_magic[2] = { 0x1f, 0x8b }; /* gzip magic header */
3337 /* write gzip header */
3338 snprintf((char *) dest, *destLen,
3339 "%c%c%c%c%c%c%c%c%c%c",
3340 gz_magic[0], gz_magic[1], Z_DEFLATED,
3341 0 /*flags */ , 0, 0, 0, 0 /*time */ , 0 /* xflags */ ,
3344 /* normal deflate */
3347 stream.next_in = (Bytef *) source;
3348 stream.avail_in = (uInt) sourceLen;
3349 stream.next_out = dest + 10L; // after header
3350 stream.avail_out = (uInt) * destLen;
3351 if ((uLong) stream.avail_out != *destLen)
3354 stream.zalloc = (alloc_func) 0;
3355 stream.zfree = (free_func) 0;
3356 stream.opaque = (voidpf) 0;
3358 err = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS,
3359 DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
3363 err = deflate(&stream, Z_FINISH);
3364 if (err != Z_STREAM_END) {
3365 deflateEnd(&stream);
3366 return err == Z_OK ? Z_BUF_ERROR : err;
3368 *destLen = stream.total_out + 10L;
3370 /* write CRC and Length */
3371 uLong crc = crc32(0L, source, sourceLen);
3373 for (n = 0; n < 4; ++n, ++*destLen) {
3374 dest[*destLen] = (int) (crc & 0xff);
3377 uLong len = stream.total_in;
3378 for (n = 0; n < 4; ++n, ++*destLen) {
3379 dest[*destLen] = (int) (len & 0xff);
3382 err = deflateEnd(&stream);
3389 * @ingroup StrBuf_DeEnCoder
3390 * @brief compress the buffer with gzip
3391 * Attention! If you feed this a Const String, you must maintain the uncompressed buffer yourself!
3392 * @param Buf buffer whose content is to be gzipped
3394 int CompressBuffer(StrBuf *Buf)
3397 char *compressed_data = NULL;
3398 size_t compressed_len, bufsize;
3401 bufsize = compressed_len = Buf->BufUsed + (Buf->BufUsed / 100) + 100;
3402 compressed_data = malloc(compressed_len);
3404 if (compressed_data == NULL)
3406 /* Flush some space after the used payload so valgrind shuts up... */
3407 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
3408 Buf->buf[Buf->BufUsed + i++] = '\0';
3409 if (compress_gzip((Bytef *) compressed_data,
3412 (uLongf) Buf->BufUsed, Z_BEST_SPEED) == Z_OK) {
3415 Buf->buf = compressed_data;
3416 Buf->BufUsed = compressed_len;
3417 Buf->BufSize = bufsize;
3418 /* Flush some space after the used payload so valgrind shuts up... */
3420 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
3421 Buf->buf[Buf->BufUsed + i++] = '\0';
3424 free(compressed_data);
3426 #endif /* HAVE_ZLIB */
3430 /*******************************************************************************
3431 * File I/O; Callbacks to libevent *
3432 *******************************************************************************/
3434 long StrBuf_read_one_chunk_callback (int fd, short event, IOBuffer *FB)
3439 if ((FB == NULL) || (FB->Buf == NULL))
3443 * check whether the read pointer is somewhere in a range
3444 * where a cut left is inexpensive
3447 if (FB->ReadWritePointer != NULL)
3451 already_read = FB->ReadWritePointer - FB->Buf->buf;
3452 bufremain = FB->Buf->BufSize - FB->Buf->BufUsed - 1;
3454 if (already_read != 0) {
3457 unread = FB->Buf->BufUsed - already_read;
3459 /* else nothing to compact... */
3461 FB->ReadWritePointer = FB->Buf->buf;
3462 bufremain = FB->Buf->BufSize;
3464 else if ((unread < 64) ||
3465 (bufremain < already_read))
3468 * if its just a tiny bit remaining, or we run out of space...
3471 FB->Buf->BufUsed = unread;
3472 if (unread < already_read)
3473 memcpy(FB->Buf->buf, FB->ReadWritePointer, unread);
3475 memmove(FB->Buf->buf, FB->ReadWritePointer, unread);
3476 FB->ReadWritePointer = FB->Buf->buf;
3477 bufremain = FB->Buf->BufSize - unread - 1;
3479 else if (bufremain < (FB->Buf->BufSize / 10))
3481 /* get a bigger buffer */
3483 IncreaseBuf(FB->Buf, 0, FB->Buf->BufUsed + 1);
3485 FB->ReadWritePointer = FB->Buf->buf + unread;
3487 bufremain = FB->Buf->BufSize - unread - 1;
3488 /*TODO: special increase function that won't copy the already read! */
3491 else if (bufremain < 10) {
3492 IncreaseBuf(FB->Buf, 1, FB->Buf->BufUsed + 10);
3494 FB->ReadWritePointer = FB->Buf->buf;
3496 bufremain = FB->Buf->BufSize - FB->Buf->BufUsed - 1;
3501 FB->ReadWritePointer = FB->Buf->buf;
3502 bufremain = FB->Buf->BufSize - 1;
3505 n = read(fd, FB->Buf->buf + FB->Buf->BufUsed, bufremain);
3508 FB->Buf->BufUsed += n;
3509 FB->Buf->buf[FB->Buf->BufUsed] = '\0';
3514 int StrBuf_write_one_chunk_callback(int fd, short event, IOBuffer *FB)
3519 if ((FB == NULL) || (FB->Buf == NULL))
3522 if (FB->ReadWritePointer != NULL)
3524 WriteRemain = FB->Buf->BufUsed -
3525 (FB->ReadWritePointer -
3529 FB->ReadWritePointer = FB->Buf->buf;
3530 WriteRemain = FB->Buf->BufUsed;
3533 n = write(fd, FB->ReadWritePointer, WriteRemain);
3535 FB->ReadWritePointer += n;
3537 if (FB->ReadWritePointer ==
3538 FB->Buf->buf + FB->Buf->BufUsed)
3540 FlushStrBuf(FB->Buf);
3541 FB->ReadWritePointer = NULL;
3544 // check whether we've got something to write
3545 // get the maximum chunk plus the pointer we can send
3546 // write whats there
3547 // if not all was sent, remember the send pointer for the next time
3548 return FB->ReadWritePointer - FB->Buf->buf + FB->Buf->BufUsed;
3554 * @ingroup StrBuf_IO
3555 * @brief extract a "next line" from Buf; Ptr to persist across several iterations
3556 * @param LineBuf your line will be copied here.
3557 * @param FB BLOB with lines of text...
3558 * @param Ptr moved arround to keep the next-line across several iterations
3559 * has to be &NULL on start; will be &NotNULL on end of buffer
3560 * @returns size of copied buffer
3562 eReadState StrBufChunkSipLine(StrBuf *LineBuf, IOBuffer *FB)
3564 const char *aptr, *ptr, *eptr;
3567 if ((FB->Buf == NULL) || (FB->ReadWritePointer == StrBufNOTNULL)) {
3568 FB->ReadWritePointer = StrBufNOTNULL;
3572 FlushStrBuf(LineBuf);
3573 if (FB->ReadWritePointer == NULL)
3574 ptr = aptr = FB->Buf->buf;
3576 ptr = aptr = FB->ReadWritePointer;
3578 optr = LineBuf->buf;
3579 eptr = FB->Buf->buf + FB->Buf->BufUsed;
3580 xptr = LineBuf->buf + LineBuf->BufSize - 1;
3582 while ((ptr <= eptr) &&
3589 LineBuf->BufUsed = optr - LineBuf->buf;
3590 IncreaseBuf(LineBuf, 1, LineBuf->BufUsed + 1);
3591 optr = LineBuf->buf + LineBuf->BufUsed;
3592 xptr = LineBuf->buf + LineBuf->BufSize - 1;
3597 if (optr > LineBuf->buf)
3599 if ((*(ptr - 1) != '\r') && (*(ptr - 1) != '\n')) {
3600 LineBuf->BufUsed = optr - LineBuf->buf;
3602 return eMustReadMore;
3605 LineBuf->BufUsed = optr - LineBuf->buf;
3607 if ((ptr <= eptr) && (*ptr == '\r'))
3609 if ((ptr <= eptr) && (*ptr == '\n'))
3613 FB->ReadWritePointer = ptr;
3616 FlushStrBuf(FB->Buf);
3617 FB->ReadWritePointer = NULL;
3620 return eReadSuccess;
3624 * @ingroup StrBuf_CHUNKED_IO
3625 * @brief check whether the chunk-buffer has more data waiting or not.
3626 * @param FB Chunk-Buffer to inspect
3628 eReadState StrBufCheckBuffer(IOBuffer *FB)
3632 if (FB->Buf->BufUsed == 0)
3633 return eReadSuccess;
3634 if (FB->ReadWritePointer == NULL)
3635 return eBufferNotEmpty;
3636 if (FB->Buf->buf + FB->Buf->BufUsed > FB->ReadWritePointer)
3637 return eBufferNotEmpty;
3638 return eReadSuccess;
3641 /*******************************************************************************
3642 * File I/O; Prefer buffered read since its faster! *
3643 *******************************************************************************/
3646 * @ingroup StrBuf_IO
3647 * @brief Read a line from socket
3648 * flushes and closes the FD on error
3649 * @param buf the buffer to get the input to
3650 * @param fd pointer to the filedescriptor to read
3651 * @param append Append to an existing string or replace?
3652 * @param Error strerror() on error
3653 * @returns numbers of chars read
3655 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error)
3657 int len, rlen, slen;
3662 slen = len = buf->BufUsed;
3664 rlen = read(*fd, &buf->buf[len], 1);
3666 *Error = strerror(errno);
3673 if (buf->buf[len] == '\n')
3675 if (buf->buf[len] != '\r')
3677 if (len + 2 >= buf->BufSize) {
3679 buf->buf[len+1] = '\0';
3680 IncreaseBuf(buf, 1, -1);
3684 buf->buf[len] = '\0';
3689 * @ingroup StrBuf_BufferedIO
3690 * @brief Read a line from socket
3691 * flushes and closes the FD on error
3692 * @param Line the line to read from the fd / I/O Buffer
3693 * @param buf the buffer to get the input to
3694 * @param fd pointer to the filedescriptor to read
3695 * @param timeout number of successless selects until we bail out
3696 * @param selectresolution how long to wait on each select
3697 * @param Error strerror() on error
3698 * @returns numbers of chars read
3700 int StrBufTCP_read_buffered_line(StrBuf *Line,
3704 int selectresolution,
3708 int nSuccessLess = 0;
3715 if (buf->BufUsed > 0) {
3716 pch = strchr(buf->buf, '\n');
3719 len = pch - buf->buf;
3720 if (len > 0 && (*(pch - 1) == '\r') )
3722 StrBufSub(Line, buf, 0, len - rlen);
3723 StrBufCutLeft(buf, len + 1);
3728 if (buf->BufSize - buf->BufUsed < 10)
3729 IncreaseBuf(buf, 1, -1);
3731 fdflags = fcntl(*fd, F_GETFL);
3732 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3734 while ((nSuccessLess < timeout) && (pch == NULL)) {
3736 tv.tv_sec = selectresolution;
3741 if (select(*fd + 1, NULL, &rfds, NULL, &tv) == -1) {
3742 *Error = strerror(errno);
3748 if (IsNonBlock && ! FD_ISSET(*fd, &rfds)) {
3753 &buf->buf[buf->BufUsed],
3754 buf->BufSize - buf->BufUsed - 1);
3756 *Error = strerror(errno);
3761 else if (rlen > 0) {
3763 buf->BufUsed += rlen;
3764 buf->buf[buf->BufUsed] = '\0';
3765 if (buf->BufUsed + 10 > buf->BufSize) {
3766 IncreaseBuf(buf, 1, -1);
3768 pch = strchr(buf->buf, '\n');
3775 len = pch - buf->buf;
3776 if (len > 0 && (*(pch - 1) == '\r') )
3778 StrBufSub(Line, buf, 0, len - rlen);
3779 StrBufCutLeft(buf, len + 1);
3786 static const char *ErrRBLF_PreConditionFailed="StrBufTCP_read_buffered_line_fast: Wrong arguments or invalid Filedescriptor";
3787 static const char *ErrRBLF_SelectFailed="StrBufTCP_read_buffered_line_fast: Select failed without reason";
3788 static const char *ErrRBLF_NotEnoughSentFromServer="StrBufTCP_read_buffered_line_fast: No complete line was sent from peer";
3790 * @ingroup StrBuf_BufferedIO
3791 * @brief Read a line from socket
3792 * flushes and closes the FD on error
3793 * @param Line where to append our Line read from the fd / I/O Buffer;
3794 * @param IOBuf the buffer to get the input to; lifetime pair to FD
3795 * @param Pos pointer to the current read position, should be NULL initialized on opening the FD it belongs to.!
3796 * @param fd pointer to the filedescriptor to read
3797 * @param timeout number of successless selects until we bail out
3798 * @param selectresolution how long to wait on each select
3799 * @param Error strerror() on error
3800 * @returns numbers of chars read or -1 in case of error. "\n" will become 0
3802 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
3807 int selectresolution,
3810 const char *pche = NULL;
3811 const char *pos = NULL;
3813 int len, rlen, retlen;
3814 int nSuccessLess = 0;
3816 const char *pch = NULL;
3822 if ((Line == NULL) ||
3829 *Error = ErrRBLF_PreConditionFailed;
3834 if ((IOBuf->BufUsed > 0) &&
3836 (pos < IOBuf->buf + IOBuf->BufUsed))
3840 pche = IOBuf->buf + IOBuf->BufUsed;
3844 while ((pch < pche) && (*pch != '\n'))
3846 if (Line->BufUsed + 10 > Line->BufSize)
3849 apos = pcht - Line->buf;
3851 IncreaseBuf(Line, 1, -1);
3852 pcht = Line->buf + apos;
3860 if (len > 0 && (*(pch - 1) == '\r') )
3869 if ((pch >= pche) || (*pch == '\0'))
3877 if ((pch != NULL) &&
3880 if (pch + 1 >= pche) {
3893 /* If we come here, Pos is Unset since we read everything into Line, and now go for more. */
3895 if (IOBuf->BufSize - IOBuf->BufUsed < 10)
3896 IncreaseBuf(IOBuf, 1, -1);
3898 fdflags = fcntl(*fd, F_GETFL);
3899 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
3902 while ((nSuccessLess < timeout) &&
3912 if (select((*fd) + 1, &rfds, NULL, NULL, &tv) == -1) {
3913 *Error = strerror(errno);
3917 *Error = ErrRBLF_SelectFailed;
3920 if (! FD_ISSET(*fd, &rfds) != 0) {
3926 &IOBuf->buf[IOBuf->BufUsed],
3927 IOBuf->BufSize - IOBuf->BufUsed - 1);
3929 *Error = strerror(errno);
3934 else if (rlen > 0) {
3936 pLF = IOBuf->buf + IOBuf->BufUsed;
3937 IOBuf->BufUsed += rlen;
3938 IOBuf->buf[IOBuf->BufUsed] = '\0';
3940 pche = IOBuf->buf + IOBuf->BufUsed;
3942 while ((pLF < pche) && (*pLF != '\n'))
3944 if ((pLF >= pche) || (*pLF == '\0'))
3947 if (IOBuf->BufUsed + 10 > IOBuf->BufSize)
3951 if (pLF != NULL) apos = pLF - IOBuf->buf;
3952 IncreaseBuf(IOBuf, 1, -1);
3953 if (pLF != NULL) pLF = IOBuf->buf + apos;
3963 if (len > 0 && (*(pLF - 1) == '\r') )
3965 StrBufAppendBufPlain(Line, ChrPtr(IOBuf), len, 0);
3966 if (pLF + 1 >= IOBuf->buf + IOBuf->BufUsed)
3972 return retlen + len;
3974 *Error = ErrRBLF_NotEnoughSentFromServer;
3979 static const char *ErrRBLF_BLOBPreConditionFailed="StrBufReadBLOB: Wrong arguments or invalid Filedescriptor";
3981 * @ingroup StrBuf_IO
3982 * @brief Input binary data from socket
3983 * flushes and closes the FD on error
3984 * @param Buf the buffer to get the input to
3985 * @param fd pointer to the filedescriptor to read
3986 * @param append Append to an existing string or replace?
3987 * @param nBytes the maximal number of bytes to read
3988 * @param Error strerror() on error
3989 * @returns numbers of chars read
3991 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error)
3994 int len, rlen, slen;
4002 if ((Buf == NULL) || (*fd == -1))
4004 *Error = ErrRBLF_BLOBPreConditionFailed;
4009 if (Buf->BufUsed + nBytes >= Buf->BufSize)
4010 IncreaseBuf(Buf, 1, Buf->BufUsed + nBytes);
4012 ptr = Buf->buf + Buf->BufUsed;
4014 slen = len = Buf->BufUsed;
4016 fdflags = fcntl(*fd, F_GETFL);
4017 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
4019 while ((nRead < nBytes) &&
4029 if (select(*fd + 1, &rfds, NULL, NULL, &tv) == -1) {
4030 *Error = strerror(errno);
4034 *Error = ErrRBLF_SelectFailed;
4037 if (! FD_ISSET(*fd, &rfds) != 0) {
4043 if ((rlen = read(*fd,
4045 nBytes - nRead)) == -1) {
4048 *Error = strerror(errno);
4053 Buf->BufUsed += rlen;
4055 Buf->buf[Buf->BufUsed] = '\0';
4059 const char *ErrRBB_BLOBFPreConditionFailed = "StrBufReadBLOBBuffered: to many selects; aborting.";
4060 const char *ErrRBB_too_many_selects = "StrBufReadBLOBBuffered: to many selects; aborting.";
4062 * @ingroup StrBuf_BufferedIO
4063 * @brief Input binary data from socket
4064 * flushes and closes the FD on error
4065 * @param Blob put binary thing here
4066 * @param IOBuf the buffer to get the input to
4067 * @param Pos offset inside of IOBuf
4068 * @param fd pointer to the filedescriptor to read
4069 * @param append Append to an existing string or replace?
4070 * @param nBytes the maximal number of bytes to read
4071 * @param check whether we should search for '000\n' terminators in case of timeouts
4072 * @param Error strerror() on error
4073 * @returns numbers of chars read
4075 int StrBufReadBLOBBuffered(StrBuf *Blob,
4090 int nAlreadyRead = 0;
4096 int nSuccessLess = 0;
4099 if ((Blob == NULL) || (*fd == -1) || (IOBuf == NULL) || (Pos == NULL))
4103 *Error = ErrRBB_BLOBFPreConditionFailed;
4109 if (Blob->BufUsed + nBytes >= Blob->BufSize)
4110 IncreaseBuf(Blob, append, Blob->BufUsed + nBytes);
4115 len = pos - IOBuf->buf;
4116 rlen = IOBuf->BufUsed - len;
4119 if ((IOBuf->BufUsed > 0) &&
4121 (pos < IOBuf->buf + IOBuf->BufUsed))
4123 pche = IOBuf->buf + IOBuf->BufUsed;
4126 if (rlen < nBytes) {
4127 memcpy(Blob->buf + Blob->BufUsed, pos, rlen);
4128 Blob->BufUsed += rlen;
4129 Blob->buf[Blob->BufUsed] = '\0';
4130 nAlreadyRead = nRead = rlen;
4133 if (rlen >= nBytes) {
4134 memcpy(Blob->buf + Blob->BufUsed, pos, nBytes);
4135 Blob->BufUsed += nBytes;
4136 Blob->buf[Blob->BufUsed] = '\0';
4137 if (rlen == nBytes) {
4149 if (IOBuf->BufSize < nBytes - nRead)
4150 IncreaseBuf(IOBuf, 0, nBytes - nRead);
4153 slen = len = Blob->BufUsed;
4155 fdflags = fcntl(*fd, F_GETFL);
4156 IsNonBlock = (fdflags & O_NONBLOCK) == O_NONBLOCK;
4164 while ((nSuccessLess < MaxTries) &&
4174 if (select(*fd + 1, &rfds, NULL, NULL, &tv) == -1) {
4175 *Error = strerror(errno);
4179 *Error = ErrRBLF_SelectFailed;
4182 if (! FD_ISSET(*fd, &rfds) != 0) {
4189 IOBuf->BufSize - (ptr - IOBuf->buf));
4193 *Error = strerror(errno);
4196 else if (rlen == 0){
4197 if ((check == NNN_TERM) &&
4199 (strncmp(IOBuf->buf + IOBuf->BufUsed - 5, "\n000\n", 5) == 0))
4201 StrBufPlain(Blob, HKEY("\n000\n"));
4202 StrBufCutRight(Blob, 5);
4203 return Blob->BufUsed;
4205 else if (!IsNonBlock)
4207 else if (nSuccessLess > MaxTries) {
4209 *Error = ErrRBB_too_many_selects;
4213 else if (rlen > 0) {
4217 IOBuf->BufUsed += rlen;
4220 if (nSuccessLess >= MaxTries) {
4222 *Error = ErrRBB_too_many_selects;
4226 if (nRead > nBytes) {
4227 *Pos = IOBuf->buf + nBytes;
4229 Blob->buf[Blob->BufUsed] = '\0';
4230 StrBufAppendBufPlain(Blob, IOBuf->buf, nBytes, 0);
4234 return nRead + nAlreadyRead;
4238 * @ingroup StrBuf_IO
4239 * @brief extract a "next line" from Buf; Ptr to persist across several iterations
4240 * @param LineBuf your line will be copied here.
4241 * @param Buf BLOB with lines of text...
4242 * @param Ptr moved arround to keep the next-line across several iterations
4243 * has to be &NULL on start; will be &NotNULL on end of buffer
4244 * @returns size of remaining buffer
4246 int StrBufSipLine(StrBuf *LineBuf, StrBuf *Buf, const char **Ptr)
4248 const char *aptr, *ptr, *eptr;
4251 if ((Buf == NULL) || (*Ptr == StrBufNOTNULL)) {
4252 *Ptr = StrBufNOTNULL;
4256 FlushStrBuf(LineBuf);
4258 ptr = aptr = Buf->buf;
4262 optr = LineBuf->buf;
4263 eptr = Buf->buf + Buf->BufUsed;
4264 xptr = LineBuf->buf + LineBuf->BufSize - 1;
4266 while ((ptr <= eptr) &&
4273 LineBuf->BufUsed = optr - LineBuf->buf;
4274 IncreaseBuf(LineBuf, 1, LineBuf->BufUsed + 1);
4275 optr = LineBuf->buf + LineBuf->BufUsed;
4276 xptr = LineBuf->buf + LineBuf->BufSize - 1;
4280 if ((ptr >= eptr) && (optr > LineBuf->buf))
4282 LineBuf->BufUsed = optr - LineBuf->buf;
4284 if ((ptr <= eptr) && (*ptr == '\r'))
4286 if ((ptr <= eptr) && (*ptr == '\n'))
4293 *Ptr = StrBufNOTNULL;
4296 return Buf->BufUsed - (ptr - Buf->buf);
4301 * @ingroup StrBuf_IO
4302 * @brief removes double slashes from pathnames
4303 * @param Dir directory string to filter
4304 * @param RemoveTrailingSlash allows / disallows trailing slashes
4306 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash)
4312 while (!IsEmptyStr(a)) {
4324 if ((RemoveTrailingSlash) && (*(b - 1) != '/')){
4329 Dir->BufUsed = b - Dir->buf;