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;
33 * Private Structure for the Stringbuffer
36 char *buf; /**< the pointer to the dynamic buffer */
37 long BufSize; /**< how many spcae do we optain */
38 long BufUsed; /**< StNumber of Chars used excluding the trailing \0 */
39 int ConstBuf; /**< are we just a wrapper arround a static buffer and musn't we be changed? */
43 char bt_lastinc [SIZ];
49 static void StrBufBacktrace(StrBuf *Buf, int which)
53 void *stack_frames[50];
58 pstart = pch = Buf->bt;
60 pstart = pch = Buf->bt_lastinc;
61 size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
62 strings = backtrace_symbols(stack_frames, size);
63 for (i = 0; i < size; i++) {
65 n = snprintf(pch, SIZ - (pch - pstart), "%s\\n", strings[i]);
67 n = snprintf(pch, SIZ - (pch - pstart), "%p\\n", stack_frames[i]);
78 * \Brief Cast operator to Plain String
79 * Note: if the buffer is altered by StrBuf operations, this pointer may become
80 * invalid. So don't lean on it after altering the buffer!
81 * Since this operation is considered cheap, rather call it often than risking
82 * your pointer to become invalid!
83 * \param Str the string we want to get the c-string representation for
84 * \returns the Pointer to the Content. Don't mess with it!
86 inline const char *ChrPtr(const StrBuf *Str)
94 * \brief since we know strlen()'s result, provide it here.
95 * \param Str the string to return the length to
96 * \returns contentlength of the buffer
98 inline int StrLength(const StrBuf *Str)
100 return (Str != NULL) ? Str->BufUsed : 0;
104 * \brief local utility function to resize the buffer
105 * \param Buf the buffer whichs storage we should increase
106 * \param KeepOriginal should we copy the original buffer or just start over with a new one
107 * \param DestSize what should fit in after?
109 static int IncreaseBuf(StrBuf *Buf, int KeepOriginal, int DestSize)
112 size_t NewSize = Buf->BufSize * 2;
118 while (NewSize <= DestSize)
121 NewBuf= (char*) malloc(NewSize);
125 if (KeepOriginal && (Buf->BufUsed > 0))
127 memcpy(NewBuf, Buf->buf, Buf->BufUsed);
136 Buf->BufSize = NewSize;
140 StrBufBacktrace(Buf, 1);
147 * \brief shrink an _EMPTY_ buffer if its Buffer superseeds threshhold to NewSize. Buffercontent is thoroughly ignored and flushed.
148 * \param Buf Buffer to shrink (has to be empty)
149 * \param ThreshHold if the buffer is bigger then this, its readjusted
150 * \param NewSize if we Shrink it, how big are we going to be afterwards?
152 void ReAdjustEmptyBuf(StrBuf *Buf, long ThreshHold, long NewSize)
154 if (Buf->BufUsed > ThreshHold) {
156 Buf->buf = (char*) malloc(NewSize);
158 Buf->BufSize = NewSize;
163 * \brief shrink long term buffers to their real size so they don't waste memory
164 * \param Buf buffer to shrink
165 * \param Force if not set, will just executed if the buffer is much to big; set for lifetime strings
166 * \returns physical size of the buffer
168 long StrBufShrinkToFit(StrBuf *Buf, int Force)
171 (Buf->BufUsed + (Buf->BufUsed / 3) > Buf->BufSize))
173 char *TmpBuf = (char*) malloc(Buf->BufUsed + 1);
174 memcpy (TmpBuf, Buf->buf, Buf->BufUsed + 1);
175 Buf->BufSize = Buf->BufUsed + 1;
183 * Allocate a new buffer with default buffer size
184 * \returns the new stringbuffer
186 StrBuf* NewStrBuf(void)
190 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
191 NewBuf->buf = (char*) malloc(BaseStrBufSize);
192 NewBuf->buf[0] = '\0';
193 NewBuf->BufSize = BaseStrBufSize;
195 NewBuf->ConstBuf = 0;
197 NewBuf->nIncreases = 0;
198 NewBuf->bt[0] = '\0';
199 NewBuf->bt_lastinc[0] = '\0';
201 StrBufBacktrace(NewBuf, 0);
208 * \brief Copy Constructor; returns a duplicate of CopyMe
209 * \params CopyMe Buffer to faxmilate
210 * \returns the new stringbuffer
212 StrBuf* NewStrBufDup(const StrBuf *CopyMe)
219 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
220 NewBuf->buf = (char*) malloc(CopyMe->BufSize);
221 memcpy(NewBuf->buf, CopyMe->buf, CopyMe->BufUsed + 1);
222 NewBuf->BufUsed = CopyMe->BufUsed;
223 NewBuf->BufSize = CopyMe->BufSize;
224 NewBuf->ConstBuf = 0;
226 NewBuf->nIncreases = 0;
227 NewBuf->bt[0] = '\0';
228 NewBuf->bt_lastinc[0] = '\0';
230 StrBufBacktrace(NewBuf, 0);
237 * \brief create a new Buffer using an existing c-string
238 * this function should also be used if you want to pre-suggest
239 * the buffer size to allocate in conjunction with ptr == NULL
240 * \param ptr the c-string to copy; may be NULL to create a blank instance
241 * \param nChars How many chars should we copy; -1 if we should measure the length ourselves
242 * \returns the new stringbuffer
244 StrBuf* NewStrBufPlain(const char* ptr, int nChars)
247 size_t Siz = BaseStrBufSize;
250 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
252 CopySize = strlen((ptr != NULL)?ptr:"");
256 while (Siz <= CopySize)
259 NewBuf->buf = (char*) malloc(Siz);
260 NewBuf->BufSize = Siz;
262 memcpy(NewBuf->buf, ptr, CopySize);
263 NewBuf->buf[CopySize] = '\0';
264 NewBuf->BufUsed = CopySize;
267 NewBuf->buf[0] = '\0';
270 NewBuf->ConstBuf = 0;
272 NewBuf->nIncreases = 0;
273 NewBuf->bt[0] = '\0';
274 NewBuf->bt_lastinc[0] = '\0';
276 StrBufBacktrace(NewBuf, 0);
283 * \brief Set an existing buffer from a c-string
284 * \param ptr c-string to put into
285 * \param nChars set to -1 if we should work 0-terminated
286 * \returns the new length of the string
288 int StrBufPlain(StrBuf *Buf, const char* ptr, int nChars)
290 size_t Siz = Buf->BufSize;
294 CopySize = strlen(ptr);
298 while (Siz <= CopySize)
301 if (Siz != Buf->BufSize)
302 IncreaseBuf(Buf, 0, Siz);
303 memcpy(Buf->buf, ptr, CopySize);
304 Buf->buf[CopySize] = '\0';
305 Buf->BufUsed = CopySize;
312 * \brief use strbuf as wrapper for a string constant for easy handling
313 * \param StringConstant a string to wrap
314 * \param SizeOfConstant should be sizeof(StringConstant)-1
316 StrBuf* _NewConstStrBuf(const char* StringConstant, size_t SizeOfStrConstant)
320 NewBuf = (StrBuf*) malloc(sizeof(StrBuf));
321 NewBuf->buf = (char*) StringConstant;
322 NewBuf->BufSize = SizeOfStrConstant;
323 NewBuf->BufUsed = SizeOfStrConstant;
324 NewBuf->ConstBuf = 1;
326 NewBuf->nIncreases = 0;
327 NewBuf->bt[0] = '\0';
328 NewBuf->bt_lastinc[0] = '\0';
335 * \brief flush the content of a Buf; keep its struct
336 * \param buf Buffer to flush
338 int FlushStrBuf(StrBuf *buf)
350 * \brief wipe the content of a Buf thoroughly (overwrite it -> expensive); keep its struct
351 * \param buf Buffer to wipe
353 int FLUSHStrBuf(StrBuf *buf)
359 if (buf->BufUsed > 0) {
360 memset(buf->buf, 0, buf->BufUsed);
367 int hFreeDbglog = -1;
370 * \brief Release a Buffer
371 * Its a double pointer, so it can NULL your pointer
372 * so fancy SIG11 appear instead of random results
373 * \param FreeMe Pointer Pointer to the buffer to free
375 void FreeStrBuf (StrBuf **FreeMe)
380 if (hFreeDbglog == -1){
381 pid_t pid = getpid();
383 snprintf(path, SIZ, "/tmp/libcitadel_strbuf_realloc.log.%d", pid);
384 hFreeDbglog = open(path, O_APPEND|O_CREAT|O_WRONLY);
386 if ((*FreeMe)->nIncreases > 0)
390 n = snprintf(buf, SIZ * 3, "+|%ld|%ld|%ld|%s|%s|\n",
391 (*FreeMe)->nIncreases,
395 (*FreeMe)->bt_lastinc);
396 n = write(hFreeDbglog, buf, n);
402 n = snprintf(buf, 128, "_|0|%ld%ld|\n",
405 n = write(hFreeDbglog, buf, n);
408 if (!(*FreeMe)->ConstBuf)
409 free((*FreeMe)->buf);
415 * \brief flatten a Buffer to the Char * we return
416 * Its a double pointer, so it can NULL your pointer
417 * so fancy SIG11 appear instead of random results
418 * The Calle then owns the buffer and is responsible for freeing it.
419 * \param SmashMe Pointer Pointer to the buffer to release Buf from and free
420 * \return the pointer of the buffer; Callee owns the memory thereafter.
422 char *SmashStrBuf (StrBuf **SmashMe)
426 if (*SmashMe == NULL)
429 if (hFreeDbglog == -1){
430 pid_t pid = getpid();
432 snprintf(path, SIZ, "/tmp/libcitadel_strbuf_realloc.log.%d", pid);
433 hFreeDbglog = open(path, O_APPEND|O_CREAT|O_WRONLY);
435 if ((*SmashMe)->nIncreases > 0)
439 n = snprintf(buf, SIZ * 3, "S+|%ld|%ld|%ld|%s|%s|\n",
440 (*SmashMe)->nIncreases,
444 (*SmashMe)->bt_lastinc);
445 n = write(hFreeDbglog, buf, n);
451 n = snprintf(buf, 128, "S_|0|%ld%ld|\n",
453 (*SmashMe)->BufSize);
454 n = write(hFreeDbglog, buf, n);
457 Ret = (*SmashMe)->buf;
464 * \brief Release the buffer
465 * If you want put your StrBuf into a Hash, use this as Destructor.
466 * \param VFreeMe untyped pointer to a StrBuf. be shure to do the right thing [TM]
468 void HFreeStrBuf (void *VFreeMe)
470 StrBuf *FreeMe = (StrBuf*)VFreeMe;
474 if (hFreeDbglog == -1){
475 pid_t pid = getpid();
477 snprintf(path, SIZ, "/tmp/libcitadel_strbuf_realloc.log.%d", pid);
478 hFreeDbglog = open(path, O_APPEND|O_CREAT|O_WRONLY);
480 if (FreeMe->nIncreases > 0)
484 n = snprintf(buf, SIZ * 3, "+|%ld|%ld|%ld|%s|%s|\n",
490 write(hFreeDbglog, buf, n);
496 n = snprintf(buf, 128, "_|%ld|%ld%ld|\n",
502 if (!FreeMe->ConstBuf)
508 * \brief Wrapper around atol
510 long StrTol(const StrBuf *Buf)
515 return atol(Buf->buf);
521 * \brief Wrapper around atoi
523 int StrToi(const StrBuf *Buf)
527 if (Buf->BufUsed > 0)
528 return atoi(Buf->buf);
534 * \brief Checks to see if the string is a pure number
536 int StrBufIsNumber(const StrBuf *Buf) {
541 strtoll(Buf->buf, &pEnd, 10);
542 if (pEnd == NULL && ((Buf->buf)-pEnd) != 0) {
548 * \brief modifies a Single char of the Buf
549 * You can point to it via char* or a zero-based integer
550 * \param ptr char* to zero; use NULL if unused
551 * \param nThChar zero based pointer into the string; use -1 if unused
552 * \param PeekValue The Character to place into the position
554 long StrBufPeek(StrBuf *Buf, const char* ptr, long nThChar, char PeekValue)
559 nThChar = ptr - Buf->buf;
560 if ((nThChar < 0) || (nThChar > Buf->BufUsed))
562 Buf->buf[nThChar] = PeekValue;
567 * \brief Append a StringBuffer to the buffer
568 * \param Buf Buffer to modify
569 * \param AppendBuf Buffer to copy at the end of our buffer
570 * \param Offset Should we start copying from an offset?
572 void StrBufAppendBuf(StrBuf *Buf, const StrBuf *AppendBuf, unsigned long Offset)
574 if ((AppendBuf == NULL) || (Buf == NULL) || (AppendBuf->buf == NULL))
577 if (Buf->BufSize - Offset < AppendBuf->BufUsed + Buf->BufUsed + 1)
580 AppendBuf->BufUsed + Buf->BufUsed);
582 memcpy(Buf->buf + Buf->BufUsed,
583 AppendBuf->buf + Offset,
584 AppendBuf->BufUsed - Offset);
585 Buf->BufUsed += AppendBuf->BufUsed - Offset;
586 Buf->buf[Buf->BufUsed] = '\0';
591 * \brief Append a C-String to the buffer
592 * \param Buf Buffer to modify
593 * \param AppendBuf Buffer to copy at the end of our buffer
594 * \param AppendSize number of bytes to copy; set to -1 if we should count it in advance
595 * \param Offset Should we start copying from an offset?
597 void StrBufAppendBufPlain(StrBuf *Buf, const char *AppendBuf, long AppendSize, unsigned long Offset)
600 long BufSizeRequired;
602 if ((AppendBuf == NULL) || (Buf == NULL))
606 aps = strlen(AppendBuf + Offset);
608 aps = AppendSize - Offset;
610 BufSizeRequired = Buf->BufUsed + aps + 1;
611 if (Buf->BufSize <= BufSizeRequired)
612 IncreaseBuf(Buf, (Buf->BufUsed > 0), BufSizeRequired);
614 memcpy(Buf->buf + Buf->BufUsed,
618 Buf->buf[Buf->BufUsed] = '\0';
622 * \brief Callback for cURL to append the webserver reply to a buffer
623 * params pre-defined by the cURL API; see man 3 curl for mre info
625 size_t CurlFillStrBuf_callback(void *ptr, size_t size, size_t nmemb, void *stream)
634 StrBufAppendBufPlain(Target, ptr, size * nmemb, 0);
640 * \brief Escape a string for feeding out as a URL while appending it to a Buffer
641 * \param outbuf the output buffer
642 * \param oblen the size of outbuf to sanitize
643 * \param strbuf the input buffer
645 void StrBufUrlescAppend(StrBuf *OutBuf, const StrBuf *In, const char *PlainIn)
647 const char *pch, *pche;
650 const char ec[] = " +#&;`'|*?-~<>^()[]{}/$\"\\";
651 int eclen = sizeof(ec) -1;
653 if (((In == NULL) && (PlainIn == NULL)) || (OutBuf == NULL) )
655 if (PlainIn != NULL) {
656 len = strlen(PlainIn);
662 pche = pch + In->BufUsed;
669 pt = OutBuf->buf + OutBuf->BufUsed;
670 pte = OutBuf->buf + OutBuf->BufSize - 4; /**< we max append 3 chars at once plus the \0 */
674 IncreaseBuf(OutBuf, 1, -1);
675 pte = OutBuf->buf + OutBuf->BufSize - 4; /**< we max append 3 chars at once plus the \0 */
676 pt = OutBuf->buf + OutBuf->BufUsed;
680 for (b = 0; b < eclen; ++b) {
687 sprintf(pt,"%%%02X", *pch);
689 OutBuf->BufUsed += 3;
701 * \brief Append a string, escaping characters which have meaning in HTML.
703 * \param Target target buffer
704 * \param Source source buffer; set to NULL if you just have a C-String
705 * \param PlainIn Plain-C string to append; set to NULL if unused
706 * \param nbsp If nonzero, spaces are converted to non-breaking spaces.
707 * \param nolinebreaks if set to 1, linebreaks are removed from the string.
708 * if set to 2, linebreaks are replaced by <br/>
710 long StrEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn, int nbsp, int nolinebreaks)
712 const char *aptr, *eiptr;
716 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
719 if (PlainIn != NULL) {
721 len = strlen(PlainIn);
726 eiptr = aptr + Source->BufUsed;
727 len = Source->BufUsed;
733 bptr = Target->buf + Target->BufUsed;
734 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
736 while (aptr < eiptr){
738 IncreaseBuf(Target, 1, -1);
739 eptr = Target->buf + Target->BufSize - 11; /* our biggest unit to put in... */
740 bptr = Target->buf + Target->BufUsed;
743 memcpy(bptr, "<", 4);
745 Target->BufUsed += 4;
747 else if (*aptr == '>') {
748 memcpy(bptr, ">", 4);
750 Target->BufUsed += 4;
752 else if (*aptr == '&') {
753 memcpy(bptr, "&", 5);
755 Target->BufUsed += 5;
757 else if (*aptr == '"') {
758 memcpy(bptr, """, 6);
760 Target->BufUsed += 6;
762 else if (*aptr == '\'') {
763 memcpy(bptr, "'", 5);
765 Target->BufUsed += 5;
767 else if (*aptr == LB) {
772 else if (*aptr == RB) {
777 else if (*aptr == QU) {
782 else if ((*aptr == 32) && (nbsp == 1)) {
783 memcpy(bptr, " ", 6);
785 Target->BufUsed += 6;
787 else if ((*aptr == '\n') && (nolinebreaks == 1)) {
788 *bptr='\0'; /* nothing */
790 else if ((*aptr == '\n') && (nolinebreaks == 2)) {
791 memcpy(bptr, "<br/>", 11);
793 Target->BufUsed += 11;
797 else if ((*aptr == '\r') && (nolinebreaks != 0)) {
798 *bptr='\0'; /* nothing */
808 if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
810 return Target->BufUsed;
814 * \brief Append a string, escaping characters which have meaning in HTML.
815 * Converts linebreaks into blanks; escapes single quotes
816 * \param Target target buffer
817 * \param Source source buffer; set to NULL if you just have a C-String
818 * \param PlainIn Plain-C string to append; set to NULL if unused
820 void StrMsgEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
822 const char *aptr, *eiptr;
826 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
829 if (PlainIn != NULL) {
831 len = strlen(PlainIn);
836 eiptr = aptr + Source->BufUsed;
837 len = Source->BufUsed;
843 eptr = Target->buf + Target->BufSize - 8;
844 tptr = Target->buf + Target->BufUsed;
846 while (aptr < eiptr){
848 IncreaseBuf(Target, 1, -1);
849 eptr = Target->buf + Target->BufSize - 8;
850 tptr = Target->buf + Target->BufUsed;
857 else if (*aptr == '\r') {
861 else if (*aptr == '\'') {
867 Target->BufUsed += 5;
880 * \brief Append a string, escaping characters which have meaning in ICAL.
882 * \param Target target buffer
883 * \param Source source buffer; set to NULL if you just have a C-String
884 * \param PlainIn Plain-C string to append; set to NULL if unused
886 void StrIcalEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
888 const char *aptr, *eiptr;
892 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
895 if (PlainIn != NULL) {
897 len = strlen(PlainIn);
902 eiptr = aptr + Source->BufUsed;
903 len = Source->BufUsed;
909 eptr = Target->buf + Target->BufSize - 8;
910 tptr = Target->buf + Target->BufUsed;
912 while (aptr < eiptr){
913 if(tptr + 3 >= eptr) {
914 IncreaseBuf(Target, 1, -1);
915 eptr = Target->buf + Target->BufSize - 8;
916 tptr = Target->buf + Target->BufUsed;
926 else if (*aptr == '\r') {
933 else if (*aptr == ',') {
949 * \brief Append a string, escaping characters which have meaning in JavaScript strings .
951 * \param Target target buffer
952 * \param Source source buffer; set to NULL if you just have a C-String
953 * \param PlainIn Plain-C string to append; set to NULL if unused
955 long StrECMAEscAppend(StrBuf *Target, const StrBuf *Source, const char *PlainIn)
957 const char *aptr, *eiptr;
961 if (((Source == NULL) && (PlainIn == NULL)) || (Target == NULL) )
964 if (PlainIn != NULL) {
966 len = strlen(PlainIn);
971 eiptr = aptr + Source->BufUsed;
972 len = Source->BufUsed;
978 bptr = Target->buf + Target->BufUsed;
979 eptr = Target->buf + Target->BufSize - 3; /* our biggest unit to put in... */
981 while (aptr < eiptr){
983 IncreaseBuf(Target, 1, -1);
984 eptr = Target->buf + Target->BufSize - 3;
985 bptr = Target->buf + Target->BufUsed;
992 Target->BufUsed += 2;
993 } else if (*aptr == '\\') {
998 Target->BufUsed += 2;
1008 if ((bptr == eptr - 1 ) && !IsEmptyStr(aptr) )
1010 return Target->BufUsed;
1014 * \brief extracts a substring from Source into dest
1015 * \param dest buffer to place substring into
1016 * \param Source string to copy substring from
1017 * \param Offset chars to skip from start
1018 * \param nChars number of chars to copy
1019 * \returns the number of chars copied; may be different from nChars due to the size of Source
1021 int StrBufSub(StrBuf *dest, const StrBuf *Source, unsigned long Offset, size_t nChars)
1023 size_t NCharsRemain;
1024 if (Offset > Source->BufUsed)
1029 if (Offset + nChars < Source->BufUsed)
1031 if (nChars >= dest->BufSize)
1032 IncreaseBuf(dest, 0, nChars + 1);
1033 memcpy(dest->buf, Source->buf + Offset, nChars);
1034 dest->BufUsed = nChars;
1035 dest->buf[dest->BufUsed] = '\0';
1038 NCharsRemain = Source->BufUsed - Offset;
1039 if (NCharsRemain >= dest->BufSize)
1040 IncreaseBuf(dest, 0, NCharsRemain + 1);
1041 memcpy(dest->buf, Source->buf + Offset, NCharsRemain);
1042 dest->BufUsed = NCharsRemain;
1043 dest->buf[dest->BufUsed] = '\0';
1044 return NCharsRemain;
1048 * \brief sprintf like function appending the formated string to the buffer
1049 * vsnprintf version to wrap into own calls
1050 * \param Buf Buffer to extend by format and params
1051 * \param format printf alike format to add
1052 * \param ap va_list containing the items for format
1054 void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap)
1057 size_t BufSize = Buf->BufSize;
1058 size_t nWritten = Buf->BufSize + 1;
1059 size_t Offset = Buf->BufUsed;
1060 size_t newused = Offset + nWritten;
1062 while (newused >= BufSize) {
1064 nWritten = vsnprintf(Buf->buf + Offset,
1065 Buf->BufSize - Offset,
1068 newused = Offset + nWritten;
1069 if (newused >= Buf->BufSize) {
1070 IncreaseBuf(Buf, 1, newused);
1071 newused = Buf->BufSize + 1;
1074 Buf->BufUsed = Offset + nWritten;
1075 BufSize = Buf->BufSize;
1082 * \brief sprintf like function appending the formated string to the buffer
1083 * \param Buf Buffer to extend by format and params
1084 * \param format printf alike format to add
1085 * \param ap va_list containing the items for format
1087 void StrBufAppendPrintf(StrBuf *Buf, const char *format, ...)
1089 size_t BufSize = Buf->BufSize;
1090 size_t nWritten = Buf->BufSize + 1;
1091 size_t Offset = Buf->BufUsed;
1092 size_t newused = Offset + nWritten;
1095 while (newused >= BufSize) {
1096 va_start(arg_ptr, format);
1097 nWritten = vsnprintf(Buf->buf + Buf->BufUsed,
1098 Buf->BufSize - Buf->BufUsed,
1101 newused = Buf->BufUsed + nWritten;
1102 if (newused >= Buf->BufSize) {
1103 IncreaseBuf(Buf, 1, newused);
1104 newused = Buf->BufSize + 1;
1107 Buf->BufUsed += nWritten;
1108 BufSize = Buf->BufSize;
1115 * \brief sprintf like function putting the formated string into the buffer
1116 * \param Buf Buffer to extend by format and params
1117 * \param format printf alike format to add
1118 * \param ap va_list containing the items for format
1120 void StrBufPrintf(StrBuf *Buf, const char *format, ...)
1122 size_t nWritten = Buf->BufSize + 1;
1125 while (nWritten >= Buf->BufSize) {
1126 va_start(arg_ptr, format);
1127 nWritten = vsnprintf(Buf->buf, Buf->BufSize, format, arg_ptr);
1129 if (nWritten >= Buf->BufSize) {
1130 IncreaseBuf(Buf, 0, 0);
1131 nWritten = Buf->BufSize + 1;
1134 Buf->BufUsed = nWritten ;
1140 * \brief Counts the numbmer of tokens in a buffer
1141 * \param Source String to count tokens in
1142 * \param tok Tokenizer char to count
1143 * \returns numbers of tokenizer chars found
1145 int StrBufNum_tokens(const StrBuf *source, char tok)
1149 return num_tokens(source->buf, tok);
1153 * remove_token() - a tokenizer that kills, maims, and destroys
1156 * \brief a string tokenizer
1157 * \param Source StringBuffer to read into
1158 * \param parmnum n'th parameter to remove
1159 * \param separator tokenizer param
1160 * \returns -1 if not found, else length of token.
1162 int StrBufRemove_token(StrBuf *Source, int parmnum, char separator)
1165 char *d, *s; /* dest, source */
1168 /* Find desired parameter */
1170 while (count < parmnum) {
1171 /* End of string, bail! */
1176 if (*d == separator) {
1181 if (!d) return 0; /* Parameter not found */
1183 /* Find next parameter */
1185 while (*s && *s != separator) {
1188 if (*s == separator)
1192 /* Hack and slash */
1194 memmove(d, s, Source->BufUsed - (s - Source->buf));
1195 Source->BufUsed += ReducedBy;
1197 else if (d == Source->buf) {
1199 Source->BufUsed = 0;
1203 Source->BufUsed += ReducedBy;
1216 * \brief a string tokenizer
1217 * \param dest Destination StringBuffer
1218 * \param Source StringBuffer to read into
1219 * \param parmnum n'th parameter to extract
1220 * \param separator tokenizer param
1221 * \returns -1 if not found, else length of token.
1223 int StrBufExtract_token(StrBuf *dest, const StrBuf *Source, int parmnum, char separator)
1225 const char *s, *e; //* source * /
1226 int len = 0; //* running total length of extracted string * /
1227 int current_token = 0; //* token currently being processed * /
1230 dest->buf[0] = '\0';
1236 if ((Source == NULL) || (Source->BufUsed ==0)) {
1240 e = s + Source->BufUsed;
1243 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1245 while ((s<e) && !IsEmptyStr(s)) {
1246 if (*s == separator) {
1249 if (len >= dest->BufSize) {
1250 dest->BufUsed = len;
1251 if (IncreaseBuf(dest, 1, -1) < 0) {
1256 if ( (current_token == parmnum) &&
1257 (*s != separator)) {
1258 dest->buf[len] = *s;
1261 else if (current_token > parmnum) {
1267 dest->buf[len] = '\0';
1268 dest->BufUsed = len;
1270 if (current_token < parmnum) {
1271 //lprintf (CTDL_DEBUG,"test <!: %s\n", dest);
1274 //lprintf (CTDL_DEBUG,"test <: %d; %s\n", len, dest);
1283 * \brief a string tokenizer to fetch an integer
1284 * \param dest Destination StringBuffer
1285 * \param parmnum n'th parameter to extract
1286 * \param separator tokenizer param
1287 * \returns 0 if not found, else integer representation of the token
1289 int StrBufExtract_int(const StrBuf* Source, int parmnum, char separator)
1299 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1306 * \brief a string tokenizer to fetch a long integer
1307 * \param dest Destination StringBuffer
1308 * \param parmnum n'th parameter to extract
1309 * \param separator tokenizer param
1310 * \returns 0 if not found, else long integer representation of the token
1312 long StrBufExtract_long(const StrBuf* Source, int parmnum, char separator)
1322 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0)
1330 * \brief a string tokenizer to fetch an unsigned long
1331 * \param dest Destination StringBuffer
1332 * \param parmnum n'th parameter to extract
1333 * \param separator tokenizer param
1334 * \returns 0 if not found, else unsigned long representation of the token
1336 unsigned long StrBufExtract_unsigned_long(const StrBuf* Source, int parmnum, char separator)
1347 if (StrBufExtract_token(&tmp, Source, parmnum, separator) > 0) {
1351 return (unsigned long) atol(pnum);
1360 * \briefa string tokenizer; Bounds checker
1361 * function to make shure whether StrBufExtract_NextToken and friends have reached the end of the string.
1362 * \param Source our tokenbuffer
1363 * \param pStart the token iterator pointer to inspect
1364 * \returns whether the revolving pointer is inside of the search range
1366 int StrBufHaveNextToken(const StrBuf *Source, const char **pStart)
1368 if ((Source == NULL) ||
1369 (*pStart == StrBufNOTNULL) ||
1370 (Source->BufUsed == 0))
1374 if (*pStart == NULL)
1378 else if (*pStart > Source->buf + Source->BufUsed)
1382 else if (*pStart <= Source->buf)
1391 * \brief a string tokenizer
1392 * \param dest Destination StringBuffer
1393 * \param Source StringBuffer to read into
1394 * \param pStart pointer to the end of the last token. Feed with NULL on start.
1395 * \param separator tokenizer param
1396 * \returns -1 if not found, else length of token.
1398 int StrBufExtract_NextToken(StrBuf *dest, const StrBuf *Source, const char **pStart, char separator)
1400 const char *s; /* source */
1401 const char *EndBuffer; /* end stop of source buffer */
1402 int current_token = 0; /* token currently being processed */
1403 int len = 0; /* running total length of extracted string */
1405 if ((Source == NULL) ||
1406 (Source->BufUsed == 0) )
1408 *pStart = StrBufNOTNULL;
1412 EndBuffer = Source->buf + Source->BufUsed;
1416 dest->buf[0] = '\0';
1421 *pStart = EndBuffer + 1;
1425 if (*pStart == NULL)
1427 *pStart = Source->buf; /* we're starting to examine this buffer. */
1429 else if ((*pStart < Source->buf) ||
1430 (*pStart > EndBuffer ) )
1432 return -1; /* no more tokens to find. */
1436 /* start to find the next token */
1437 while ((s <= EndBuffer) &&
1438 (current_token == 0) )
1440 if (*s == separator)
1442 /* we found the next token */
1446 if (len >= dest->BufSize)
1448 /* our Dest-buffer isn't big enough, increase it. */
1449 dest->BufUsed = len;
1451 if (IncreaseBuf(dest, 1, -1) < 0) {
1452 /* WHUT? no more mem? bail out. */
1459 if ( (current_token == 0 ) && /* are we in our target token? */
1460 (!IsEmptyStr(s) ) &&
1461 (separator != *s) ) /* don't copy the token itself */
1463 dest->buf[len] = *s; /* Copy the payload */
1464 ++len; /* remember the bigger size. */
1470 /* did we reach the end? */
1471 if ((s > EndBuffer)) {
1472 EndBuffer = StrBufNOTNULL;
1473 *pStart = EndBuffer;
1476 *pStart = s; /* remember the position for the next run */
1479 /* sanitize our extracted token */
1480 dest->buf[len] = '\0';
1481 dest->BufUsed = len;
1488 * \brief a string tokenizer
1489 * \param dest Destination StringBuffer
1490 * \param Source StringBuffer to read into
1491 * \param pStart pointer to the end of the last token. Feed with NULL.
1492 * \param separator tokenizer param
1493 * \returns -1 if not found, else length of token.
1495 int StrBufSkip_NTokenS(const StrBuf *Source, const char **pStart, char separator, int nTokens)
1497 const char *s, *EndBuffer; //* source * /
1498 int len = 0; //* running total length of extracted string * /
1499 int current_token = 0; //* token currently being processed * /
1501 if ((Source == NULL) ||
1502 (Source->BufUsed ==0)) {
1506 return Source->BufUsed;
1508 if (*pStart == NULL)
1509 *pStart = Source->buf;
1511 EndBuffer = Source->buf + Source->BufUsed;
1513 if ((*pStart < Source->buf) ||
1514 (*pStart > EndBuffer)) {
1522 //lprintf (CTDL_DEBUG, "test >: n: %d sep: %c source: %s \n willi \n", parmnum, separator, source);
1524 while ((s<EndBuffer) && !IsEmptyStr(s)) {
1525 if (*s == separator) {
1528 if (current_token >= nTokens) {
1540 * \brief a string tokenizer to fetch an integer
1541 * \param dest Destination StringBuffer
1542 * \param parmnum n'th parameter to extract
1543 * \param separator tokenizer param
1544 * \returns 0 if not found, else integer representation of the token
1546 int StrBufExtractNext_int(const StrBuf* Source, const char **pStart, char separator)
1556 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0)
1563 * \brief a string tokenizer to fetch a long integer
1564 * \param dest Destination StringBuffer
1565 * \param parmnum n'th parameter to extract
1566 * \param separator tokenizer param
1567 * \returns 0 if not found, else long integer representation of the token
1569 long StrBufExtractNext_long(const StrBuf* Source, const char **pStart, char separator)
1579 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0)
1587 * \brief a string tokenizer to fetch an unsigned long
1588 * \param dest Destination StringBuffer
1589 * \param parmnum n'th parameter to extract
1590 * \param separator tokenizer param
1591 * \returns 0 if not found, else unsigned long representation of the token
1593 unsigned long StrBufExtractNext_unsigned_long(const StrBuf* Source, const char **pStart, char separator)
1604 if (StrBufExtract_NextToken(&tmp, Source, pStart, separator) > 0) {
1608 return (unsigned long) atol(pnum);
1617 * \brief Read a line from socket
1618 * flushes and closes the FD on error
1619 * \param buf the buffer to get the input to
1620 * \param fd pointer to the filedescriptor to read
1621 * \param append Append to an existing string or replace?
1622 * \param Error strerror() on error
1623 * \returns numbers of chars read
1625 int StrBufTCP_read_line(StrBuf *buf, int *fd, int append, const char **Error)
1627 int len, rlen, slen;
1632 slen = len = buf->BufUsed;
1634 rlen = read(*fd, &buf->buf[len], 1);
1636 *Error = strerror(errno);
1643 if (buf->buf[len] == '\n')
1645 if (buf->buf[len] != '\r')
1647 if (len >= buf->BufSize) {
1649 buf->buf[len+1] = '\0';
1650 IncreaseBuf(buf, 1, -1);
1654 buf->buf[len] = '\0';
1659 * \brief Read a line from socket
1660 * flushes and closes the FD on error
1661 * \param buf the buffer to get the input to
1662 * \param fd pointer to the filedescriptor to read
1663 * \param append Append to an existing string or replace?
1664 * \param Error strerror() on error
1665 * \returns numbers of chars read
1667 int StrBufTCP_read_buffered_line(StrBuf *Line,
1671 int selectresolution,
1675 int nSuccessLess = 0;
1681 if (buf->BufUsed > 0) {
1682 pch = strchr(buf->buf, '\n');
1685 len = pch - buf->buf;
1686 if (len > 0 && (*(pch - 1) == '\r') )
1688 StrBufSub(Line, buf, 0, len - rlen);
1689 StrBufCutLeft(buf, len + 1);
1694 if (buf->BufSize - buf->BufUsed < 10)
1695 IncreaseBuf(buf, 1, -1);
1697 fdflags = fcntl(*fd, F_GETFL);
1698 if ((fdflags & O_NONBLOCK) == O_NONBLOCK)
1701 while ((nSuccessLess < timeout) && (pch == NULL)) {
1702 tv.tv_sec = selectresolution;
1707 if (select(*fd + 1, NULL, &rfds, NULL, &tv) == -1) {
1708 *Error = strerror(errno);
1713 if (FD_ISSET(*fd, &rfds)) {
1715 &buf->buf[buf->BufUsed],
1716 buf->BufSize - buf->BufUsed - 1);
1718 *Error = strerror(errno);
1723 else if (rlen > 0) {
1725 buf->BufUsed += rlen;
1726 buf->buf[buf->BufUsed] = '\0';
1727 if (buf->BufUsed + 10 > buf->BufSize) {
1728 IncreaseBuf(buf, 1, -1);
1730 pch = strchr(buf->buf, '\n');
1738 len = pch - buf->buf;
1739 if (len > 0 && (*(pch - 1) == '\r') )
1741 StrBufSub(Line, buf, 0, len - rlen);
1742 StrBufCutLeft(buf, len + 1);
1749 static const char *ErrRBLF_WrongFDFlags="StrBufTCP_read_buffered_line_fast: don't work with fdflags & O_NONBLOCK";
1750 static const char *ErrRBLF_SelectFailed="StrBufTCP_read_buffered_line_fast: Select failed without reason";
1751 static const char *ErrRBLF_NotEnoughSentFromServer="StrBufTCP_read_buffered_line_fast: No complete line was sent from peer";
1753 * \brief Read a line from socket
1754 * flushes and closes the FD on error
1755 * \param buf the buffer to get the input to
1756 * \param Pos pointer to the current read position, should be NULL initialized!
1757 * \param fd pointer to the filedescriptor to read
1758 * \param append Append to an existing string or replace?
1759 * \param Error strerror() on error
1760 * \returns numbers of chars read
1762 int StrBufTCP_read_buffered_line_fast(StrBuf *Line,
1767 int selectresolution,
1770 const char *pche = NULL;
1771 const char *pos = NULL;
1773 int nSuccessLess = 0;
1775 const char *pch = NULL;
1780 if ((IOBuf->BufUsed > 0) &&
1782 (pos < IOBuf->buf + IOBuf->BufUsed))
1784 pche = IOBuf->buf + IOBuf->BufUsed;
1786 while ((pch < pche) && (*pch != '\n'))
1788 if ((pch >= pche) || (*pch == '\0'))
1790 if ((pch != NULL) &&
1795 if (len > 0 && (*(pch - 1) == '\r') )
1797 StrBufSub(Line, IOBuf, (pos - IOBuf->buf), len - rlen);
1807 StrBufCutLeft(IOBuf, (pos - IOBuf->buf));
1811 if (IOBuf->BufSize - IOBuf->BufUsed < 10) {
1812 IncreaseBuf(IOBuf, 1, -1);
1815 fdflags = fcntl(*fd, F_GETFL);
1816 if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
1817 *Error = ErrRBLF_WrongFDFlags;
1822 while ((nSuccessLess < timeout) && (pch == NULL)) {
1823 tv.tv_sec = selectresolution;
1828 if (select(*fd + 1, NULL, &rfds, NULL, &tv) == -1) {
1829 *Error = strerror(errno);
1833 *Error = ErrRBLF_SelectFailed;
1836 if (FD_ISSET(*fd, &rfds) != 0) {
1838 &IOBuf->buf[IOBuf->BufUsed],
1839 IOBuf->BufSize - IOBuf->BufUsed - 1);
1841 *Error = strerror(errno);
1846 else if (rlen > 0) {
1848 IOBuf->BufUsed += rlen;
1849 IOBuf->buf[IOBuf->BufUsed] = '\0';
1850 if (IOBuf->BufUsed + 10 > IOBuf->BufSize) {
1851 IncreaseBuf(IOBuf, 1, -1);
1854 pche = IOBuf->buf + IOBuf->BufUsed;
1856 while ((pch < pche) && (*pch != '\n'))
1858 if ((pch >= pche) || (*pch == '\0'))
1869 if (len > 0 && (*(pch - 1) == '\r') )
1871 StrBufSub(Line, IOBuf, 0, len - rlen);
1872 *Pos = pos + len + 1;
1875 *Error = ErrRBLF_NotEnoughSentFromServer;
1881 * \brief Input binary data from socket
1882 * flushes and closes the FD on error
1883 * \param buf the buffer to get the input to
1884 * \param fd pointer to the filedescriptor to read
1885 * \param append Append to an existing string or replace?
1886 * \param nBytes the maximal number of bytes to read
1887 * \param Error strerror() on error
1888 * \returns numbers of chars read
1890 int StrBufReadBLOB(StrBuf *Buf, int *fd, int append, long nBytes, const char **Error)
1894 int len, rlen, slen;
1898 if ((Buf == NULL) || (*fd == -1))
1902 if (Buf->BufUsed + nBytes >= Buf->BufSize)
1903 IncreaseBuf(Buf, 1, Buf->BufUsed + nBytes);
1905 ptr = Buf->buf + Buf->BufUsed;
1907 slen = len = Buf->BufUsed;
1909 fdflags = fcntl(*fd, F_GETFL);
1911 while (nRead < nBytes) {
1912 if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
1915 if (select(*fd + 1, NULL, &wset, NULL, NULL) == -1) {
1916 *Error = strerror(errno);
1921 if ((rlen = read(*fd,
1923 nBytes - nRead)) == -1) {
1926 *Error = strerror(errno);
1931 Buf->BufUsed += rlen;
1933 Buf->buf[Buf->BufUsed] = '\0';
1937 const char *ErrRBB_too_many_selects = "StrBufReadBLOBBuffered: to many selects; aborting.";
1939 * \brief Input binary data from socket
1940 * flushes and closes the FD on error
1941 * \param buf the buffer to get the input to
1942 * \param fd pointer to the filedescriptor to read
1943 * \param append Append to an existing string or replace?
1944 * \param nBytes the maximal number of bytes to read
1945 * \param Error strerror() on error
1946 * \returns numbers of chars read
1948 int StrBufReadBLOBBuffered(StrBuf *Blob,
1969 if ((Blob == NULL) || (*fd == -1) || (IOBuf == NULL) || (Pos == NULL))
1973 if (Blob->BufUsed + nBytes >= Blob->BufSize)
1974 IncreaseBuf(Blob, append, Blob->BufUsed + nBytes);
1979 len = pos - IOBuf->buf;
1980 rlen = IOBuf->BufUsed - len;
1983 if ((IOBuf->BufUsed > 0) &&
1985 (pos < IOBuf->buf + IOBuf->BufUsed))
1987 pche = IOBuf->buf + IOBuf->BufUsed;
1990 if (rlen < nBytes) {
1991 memcpy(Blob->buf + Blob->BufUsed, pos, rlen);
1992 Blob->BufUsed += rlen;
1993 Blob->buf[Blob->BufUsed] = '\0';
1997 if (rlen >= nBytes) {
1998 memcpy(Blob->buf + Blob->BufUsed, pos, nBytes);
1999 Blob->BufUsed += nBytes;
2000 Blob->buf[Blob->BufUsed] = '\0';
2001 if (rlen == nBytes) {
2012 if (IOBuf->BufSize < nBytes - nRead)
2013 IncreaseBuf(IOBuf, 0, nBytes - nRead);
2016 slen = len = Blob->BufUsed;
2018 fdflags = fcntl(*fd, F_GETFL);
2023 while (nRead < nBytes) {
2024 if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
2027 SelRes = select(*fd + 1, NULL, &wset, NULL, NULL);
2030 *Error = strerror(errno);
2041 *Error = strerror(errno);
2047 if ((check == NNN_TERM) &&
2049 (strncmp(IOBuf->buf + IOBuf->BufUsed - 5, "\n000\n", 5) == 0))
2051 StrBufPlain(Blob, HKEY("\n000\n"));
2052 StrBufCutRight(Blob, 5);
2053 return Blob->BufUsed;
2055 if (nSelects > 10) {
2057 *Error = ErrRBB_too_many_selects;
2064 IOBuf->BufUsed += rlen;
2067 if (nRead > nBytes) {
2068 *Pos = IOBuf->buf + nBytes;
2070 Blob->buf[Blob->BufUsed] = '\0';
2071 StrBufAppendBufPlain(Blob, IOBuf->buf, nBytes, 0);
2076 * \brief Cut nChars from the start of the string
2077 * \param Buf Buffer to modify
2078 * \param nChars how many chars should be skipped?
2080 void StrBufCutLeft(StrBuf *Buf, int nChars)
2082 if (nChars >= Buf->BufUsed) {
2086 memmove(Buf->buf, Buf->buf + nChars, Buf->BufUsed - nChars);
2087 Buf->BufUsed -= nChars;
2088 Buf->buf[Buf->BufUsed] = '\0';
2092 * \brief Cut the trailing n Chars from the string
2093 * \param Buf Buffer to modify
2094 * \param nChars how many chars should be trunkated?
2096 void StrBufCutRight(StrBuf *Buf, int nChars)
2098 if (nChars >= Buf->BufUsed) {
2102 Buf->BufUsed -= nChars;
2103 Buf->buf[Buf->BufUsed] = '\0';
2107 * \brief Cut the string after n Chars
2108 * \param Buf Buffer to modify
2109 * \param AfternChars after how many chars should we trunkate the string?
2110 * \param At if non-null and points inside of our string, cut it there.
2112 void StrBufCutAt(StrBuf *Buf, int AfternChars, const char *At)
2115 AfternChars = At - Buf->buf;
2118 if ((AfternChars < 0) || (AfternChars >= Buf->BufUsed))
2120 Buf->BufUsed = AfternChars;
2121 Buf->buf[Buf->BufUsed] = '\0';
2126 * Strip leading and trailing spaces from a string; with premeasured and adjusted length.
2127 * buf - the string to modify
2128 * len - length of the string.
2130 void StrBufTrim(StrBuf *Buf)
2133 if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
2135 while ((Buf->BufUsed > delta) && (isspace(Buf->buf[delta]))){
2138 if (delta > 0) StrBufCutLeft(Buf, delta);
2140 if (Buf->BufUsed == 0) return;
2141 while (isspace(Buf->buf[Buf->BufUsed - 1])){
2144 Buf->buf[Buf->BufUsed] = '\0';
2148 void StrBufUpCase(StrBuf *Buf)
2153 pche = pch + Buf->BufUsed;
2154 while (pch < pche) {
2155 *pch = toupper(*pch);
2161 void StrBufLowerCase(StrBuf *Buf)
2166 pche = pch + Buf->BufUsed;
2167 while (pch < pche) {
2168 *pch = tolower(*pch);
2174 * \Brief removes double slashes from pathnames
2175 * \param Dir directory string to filter
2176 * \param RemoveTrailingSlash allows / disallows trailing slashes
2178 void StrBufStripSlashes(StrBuf *Dir, int RemoveTrailingSlash)
2184 while (!IsEmptyStr(a)) {
2196 if ((RemoveTrailingSlash) && (*(b - 1) != '/')){
2201 Dir->BufUsed = b - Dir->buf;
2205 * \brief unhide special chars hidden to the HTML escaper
2206 * \param target buffer to put the unescaped string in
2207 * \param source buffer to unescape
2209 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source)
2215 FlushStrBuf(target);
2217 if (source == NULL ||target == NULL)
2222 len = source->BufUsed;
2223 for (a = 0; a < len; ++a) {
2224 if (target->BufUsed >= target->BufSize)
2225 IncreaseBuf(target, 1, -1);
2227 if (source->buf[a] == '=') {
2228 hex[0] = source->buf[a + 1];
2229 hex[1] = source->buf[a + 2];
2232 sscanf(hex, "%02x", &b);
2233 target->buf[target->BufUsed] = b;
2234 target->buf[++target->BufUsed] = 0;
2238 target->buf[target->BufUsed] = source->buf[a];
2239 target->buf[++target->BufUsed] = 0;
2246 * \brief hide special chars from the HTML escapers and friends
2247 * \param target buffer to put the escaped string in
2248 * \param source buffer to escape
2250 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source)
2255 FlushStrBuf(target);
2257 if (source == NULL ||target == NULL)
2262 len = source->BufUsed;
2263 for (i=0; i<len; ++i) {
2264 if (target->BufUsed + 4 >= target->BufSize)
2265 IncreaseBuf(target, 1, -1);
2266 if ( (isalnum(source->buf[i])) ||
2267 (source->buf[i]=='-') ||
2268 (source->buf[i]=='_') ) {
2269 target->buf[target->BufUsed++] = source->buf[i];
2272 sprintf(&target->buf[target->BufUsed],
2274 (0xFF &source->buf[i]));
2275 target->BufUsed += 3;
2278 target->buf[target->BufUsed + 1] = '\0';
2282 * \brief uses the same calling syntax as compress2(), but it
2283 * creates a stream compatible with HTTP "Content-encoding: gzip"
2286 #define DEF_MEM_LEVEL 8 /*< memlevel??? */
2287 #define OS_CODE 0x03 /*< unix */
2288 int ZEXPORT compress_gzip(Bytef * dest, /*< compressed buffer*/
2289 size_t * destLen, /*< length of the compresed data */
2290 const Bytef * source, /*< source to encode */
2291 uLong sourceLen, /*< length of source to encode */
2292 int level) /*< compression level */
2294 const int gz_magic[2] = { 0x1f, 0x8b }; /* gzip magic header */
2296 /* write gzip header */
2297 snprintf((char *) dest, *destLen,
2298 "%c%c%c%c%c%c%c%c%c%c",
2299 gz_magic[0], gz_magic[1], Z_DEFLATED,
2300 0 /*flags */ , 0, 0, 0, 0 /*time */ , 0 /* xflags */ ,
2303 /* normal deflate */
2306 stream.next_in = (Bytef *) source;
2307 stream.avail_in = (uInt) sourceLen;
2308 stream.next_out = dest + 10L; // after header
2309 stream.avail_out = (uInt) * destLen;
2310 if ((uLong) stream.avail_out != *destLen)
2313 stream.zalloc = (alloc_func) 0;
2314 stream.zfree = (free_func) 0;
2315 stream.opaque = (voidpf) 0;
2317 err = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS,
2318 DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
2322 err = deflate(&stream, Z_FINISH);
2323 if (err != Z_STREAM_END) {
2324 deflateEnd(&stream);
2325 return err == Z_OK ? Z_BUF_ERROR : err;
2327 *destLen = stream.total_out + 10L;
2329 /* write CRC and Length */
2330 uLong crc = crc32(0L, source, sourceLen);
2332 for (n = 0; n < 4; ++n, ++*destLen) {
2333 dest[*destLen] = (int) (crc & 0xff);
2336 uLong len = stream.total_in;
2337 for (n = 0; n < 4; ++n, ++*destLen) {
2338 dest[*destLen] = (int) (len & 0xff);
2341 err = deflateEnd(&stream);
2348 * Attention! If you feed this a Const String, you must maintain the uncompressed buffer yourself!
2350 int CompressBuffer(StrBuf *Buf)
2353 char *compressed_data = NULL;
2354 size_t compressed_len, bufsize;
2357 bufsize = compressed_len = Buf->BufUsed + (Buf->BufUsed / 100) + 100;
2358 compressed_data = malloc(compressed_len);
2360 if (compressed_data == NULL)
2362 /* Flush some space after the used payload so valgrind shuts up... */
2363 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
2364 Buf->buf[Buf->BufUsed + i++] = '\0';
2365 if (compress_gzip((Bytef *) compressed_data,
2368 (uLongf) Buf->BufUsed, Z_BEST_SPEED) == Z_OK) {
2371 Buf->buf = compressed_data;
2372 Buf->BufUsed = compressed_len;
2373 Buf->BufSize = bufsize;
2374 /* Flush some space after the used payload so valgrind shuts up... */
2376 while ((i < 10) && (Buf->BufUsed + i < Buf->BufSize))
2377 Buf->buf[Buf->BufUsed + i++] = '\0';
2380 free(compressed_data);
2382 #endif /* HAVE_ZLIB */
2387 * \brief decode a buffer from base 64 encoding; destroys original
2388 * \param Buf Buffor to transform
2390 int StrBufDecodeBase64(StrBuf *Buf)
2394 if (Buf == NULL) return -1;
2396 xferbuf = (char*) malloc(Buf->BufSize);
2397 siz = CtdlDecodeBase64(xferbuf,
2407 * \brief decode a buffer from base 64 encoding; destroys original
2408 * \param Buf Buffor to transform
2410 int StrBufDecodeHex(StrBuf *Buf)
2413 char *pch, *pche, *pchi;
2415 if (Buf == NULL) return -1;
2417 pch = pchi = Buf->buf;
2418 pche = pch + Buf->BufUsed;
2420 while (pchi < pche){
2421 ch = decode_hex(pchi);
2428 Buf->BufUsed = pch - Buf->buf;
2429 return Buf->BufUsed;
2433 * \brief replace all chars >0x20 && < 0x7F with Mute
2434 * \param Mute char to put over invalid chars
2435 * \param Buf Buffor to transform
2437 int StrBufSanitizeAscii(StrBuf *Buf, const char Mute)
2441 if (Buf == NULL) return -1;
2442 pch = (unsigned char *)Buf->buf;
2443 while (pch < (unsigned char *)Buf->buf + Buf->BufUsed) {
2444 if ((*pch < 0x20) || (*pch > 0x7F))
2448 return Buf->BufUsed;
2453 * \brief remove escaped strings from i.e. the url string (like %20 for blanks)
2454 * \param Buf Buffer to translate
2455 * \param StripBlanks Reduce several blanks to one?
2457 long StrBufUnescape(StrBuf *Buf, int StripBlanks)
2463 while ((Buf->BufUsed > 0) && (isspace(Buf->buf[Buf->BufUsed - 1]))){
2464 Buf->buf[Buf->BufUsed - 1] = '\0';
2469 while (a < Buf->BufUsed) {
2470 if (Buf->buf[a] == '+')
2472 else if (Buf->buf[a] == '%') {
2473 /* don't let % chars through, rather truncate the input. */
2474 if (a + 2 > Buf->BufUsed) {
2479 hex[0] = Buf->buf[a + 1];
2480 hex[1] = Buf->buf[a + 2];
2483 sscanf(hex, "%02x", &b);
2484 Buf->buf[a] = (char) b;
2485 len = Buf->BufUsed - a - 2;
2487 memmove(&Buf->buf[a + 1], &Buf->buf[a + 3], len);
2499 * \brief RFC2047-encode a header field if necessary.
2500 * If no non-ASCII characters are found, the string
2501 * will be copied verbatim without encoding.
2503 * \param target Target buffer.
2504 * \param source Source string to be encoded.
2505 * \returns encoded length; -1 if non success.
2507 int StrBufRFC2047encode(StrBuf **target, const StrBuf *source)
2509 const char headerStr[] = "=?UTF-8?Q?";
2510 int need_to_encode = 0;
2514 if ((source == NULL) ||
2518 while ((i < source->BufUsed) &&
2519 (!IsEmptyStr (&source->buf[i])) &&
2520 (need_to_encode == 0)) {
2521 if (((unsigned char) source->buf[i] < 32) ||
2522 ((unsigned char) source->buf[i] > 126)) {
2528 if (!need_to_encode) {
2529 if (*target == NULL) {
2530 *target = NewStrBufPlain(source->buf, source->BufUsed);
2533 FlushStrBuf(*target);
2534 StrBufAppendBuf(*target, source, 0);
2536 return (*target)->BufUsed;
2538 if (*target == NULL)
2539 *target = NewStrBufPlain(NULL, sizeof(headerStr) + source->BufUsed * 2);
2540 else if (sizeof(headerStr) + source->BufUsed >= (*target)->BufSize)
2541 IncreaseBuf(*target, sizeof(headerStr) + source->BufUsed, 0);
2542 memcpy ((*target)->buf, headerStr, sizeof(headerStr) - 1);
2543 (*target)->BufUsed = sizeof(headerStr) - 1;
2544 for (i=0; (i < source->BufUsed); ++i) {
2545 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2546 IncreaseBuf(*target, 1, 0);
2547 ch = (unsigned char) source->buf[i];
2548 if ((ch < 32) || (ch > 126) || (ch == 61)) {
2549 sprintf(&(*target)->buf[(*target)->BufUsed], "=%02X", ch);
2550 (*target)->BufUsed += 3;
2553 (*target)->buf[(*target)->BufUsed] = ch;
2554 (*target)->BufUsed++;
2558 if ((*target)->BufUsed + 4 >= (*target)->BufSize)
2559 IncreaseBuf(*target, 1, 0);
2561 (*target)->buf[(*target)->BufUsed++] = '?';
2562 (*target)->buf[(*target)->BufUsed++] = '=';
2563 (*target)->buf[(*target)->BufUsed] = '\0';
2564 return (*target)->BufUsed;;
2568 * \brief replaces all occurances of 'search' by 'replace'
2569 * \param buf Buffer to modify
2570 * \param search character to search
2571 * \param relpace character to replace search by
2573 void StrBufReplaceChars(StrBuf *buf, char search, char replace)
2578 for (i=0; i<buf->BufUsed; i++)
2579 if (buf->buf[i] == search)
2580 buf->buf[i] = replace;
2587 * Wrapper around iconv_open()
2588 * Our version adds aliases for non-standard Microsoft charsets
2589 * such as 'MS950', aliasing them to names like 'CP950'
2591 * tocode Target encoding
2592 * fromcode Source encoding
2594 void ctdl_iconv_open(const char *tocode, const char *fromcode, void *pic)
2597 iconv_t ic = (iconv_t)(-1) ;
2598 ic = iconv_open(tocode, fromcode);
2599 if (ic == (iconv_t)(-1) ) {
2600 char alias_fromcode[64];
2601 if ( (strlen(fromcode) == 5) && (!strncasecmp(fromcode, "MS", 2)) ) {
2602 safestrncpy(alias_fromcode, fromcode, sizeof alias_fromcode);
2603 alias_fromcode[0] = 'C';
2604 alias_fromcode[1] = 'P';
2605 ic = iconv_open(tocode, alias_fromcode);
2608 *(iconv_t *)pic = ic;
2614 static inline char *FindNextEnd (const StrBuf *Buf, char *bptr)
2617 /* Find the next ?Q? */
2618 if (Buf->BufUsed - (bptr - Buf->buf) < 6)
2621 end = strchr(bptr + 2, '?');
2626 if ((Buf->BufUsed - (end - Buf->buf) > 3) &&
2627 ((*(end + 1) == 'B') || (*(end + 1) == 'Q')) &&
2628 (*(end + 2) == '?')) {
2629 /* skip on to the end of the cluster, the next ?= */
2630 end = strstr(end + 3, "?=");
2633 /* sort of half valid encoding, try to find an end. */
2634 end = strstr(bptr, "?=");
2638 static inline void SwapBuffers(StrBuf *A, StrBuf *B)
2642 memcpy(&C, A, sizeof(*A));
2643 memcpy(A, B, sizeof(*B));
2644 memcpy(B, &C, sizeof(C));
2648 void StrBufConvert(StrBuf *ConvertBuf, StrBuf *TmpBuf, void *pic)
2654 char *ibuf; /**< Buffer of characters to be converted */
2655 char *obuf; /**< Buffer for converted characters */
2656 size_t ibuflen; /**< Length of input buffer */
2657 size_t obuflen; /**< Length of output buffer */
2660 /* since we're converting to utf-8, one glyph may take up to 6 bytes */
2661 if (ConvertBuf->BufUsed * 6 >= TmpBuf->BufSize)
2662 IncreaseBuf(TmpBuf, 0, ConvertBuf->BufUsed * 6);
2664 ic = *(iconv_t*)pic;
2665 ibuf = ConvertBuf->buf;
2666 ibuflen = ConvertBuf->BufUsed;
2668 obuflen = TmpBuf->BufSize;
2670 siz = iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
2673 if (errno == E2BIG) {
2675 IncreaseBuf(TmpBuf, 0, 0);
2680 else if (errno == EILSEQ){
2681 /* hm, invalid utf8 sequence... what to do now? */
2682 /* An invalid multibyte sequence has been encountered in the input */
2684 else if (errno == EINVAL) {
2685 /* An incomplete multibyte sequence has been encountered in the input. */
2688 FlushStrBuf(TmpBuf);
2691 TmpBuf->BufUsed = TmpBuf->BufSize - obuflen;
2692 TmpBuf->buf[TmpBuf->BufUsed] = '\0';
2694 /* little card game: wheres the red lady? */
2695 SwapBuffers(ConvertBuf, TmpBuf);
2696 FlushStrBuf(TmpBuf);
2704 inline static void DecodeSegment(StrBuf *Target,
2705 const StrBuf *DecodeMe,
2709 StrBuf *ConvertBuf2,
2710 StrBuf *FoundCharset)
2716 iconv_t ic = (iconv_t)(-1);
2718 /* Now we handle foreign character sets properly encoded
2719 * in RFC2047 format.
2721 StaticBuf.buf = SegmentStart;
2722 StaticBuf.BufUsed = SegmentEnd - SegmentStart;
2723 StaticBuf.BufSize = DecodeMe->BufSize - (SegmentStart - DecodeMe->buf);
2724 extract_token(charset, SegmentStart, 1, '?', sizeof charset);
2725 if (FoundCharset != NULL) {
2726 FlushStrBuf(FoundCharset);
2727 StrBufAppendBufPlain(FoundCharset, charset, -1, 0);
2729 extract_token(encoding, SegmentStart, 2, '?', sizeof encoding);
2730 StrBufExtract_token(ConvertBuf, &StaticBuf, 3, '?');
2732 *encoding = toupper(*encoding);
2733 if (*encoding == 'B') { /**< base64 */
2734 ConvertBuf2->BufUsed = CtdlDecodeBase64(ConvertBuf2->buf,
2736 ConvertBuf->BufUsed);
2738 else if (*encoding == 'Q') { /**< quoted-printable */
2742 while (pos < ConvertBuf->BufUsed)
2744 if (ConvertBuf->buf[pos] == '_')
2745 ConvertBuf->buf[pos] = ' ';
2749 ConvertBuf2->BufUsed = CtdlDecodeQuotedPrintable(
2752 ConvertBuf->BufUsed);
2755 StrBufAppendBuf(ConvertBuf2, ConvertBuf, 0);
2758 ctdl_iconv_open("UTF-8", charset, &ic);
2759 if (ic != (iconv_t)(-1) ) {
2761 StrBufConvert(ConvertBuf2, ConvertBuf, &ic);
2762 StrBufAppendBuf(Target, ConvertBuf2, 0);
2767 StrBufAppendBufPlain(Target, HKEY("(unreadable)"), 0);
2772 * Handle subjects with RFC2047 encoding such as:
2773 * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
2775 void StrBuf_RFC822_to_Utf8(StrBuf *Target, const StrBuf *DecodeMe, const StrBuf* DefaultCharset, StrBuf *FoundCharset)
2777 StrBuf *ConvertBuf, *ConvertBuf2;
2778 char *start, *end, *next, *nextend, *ptr = NULL;
2780 iconv_t ic = (iconv_t)(-1) ;
2785 int illegal_non_rfc2047_encoding = 0;
2787 /* Sometimes, badly formed messages contain strings which were simply
2788 * written out directly in some foreign character set instead of
2789 * using RFC2047 encoding. This is illegal but we will attempt to
2790 * handle it anyway by converting from a user-specified default
2791 * charset to UTF-8 if we see any nonprintable characters.
2794 len = StrLength(DecodeMe);
2795 for (i=0; i<DecodeMe->BufUsed; ++i) {
2796 if ((DecodeMe->buf[i] < 32) || (DecodeMe->buf[i] > 126)) {
2797 illegal_non_rfc2047_encoding = 1;
2802 ConvertBuf = NewStrBufPlain(NULL, StrLength(DecodeMe));
2803 if ((illegal_non_rfc2047_encoding) &&
2804 (strcasecmp(ChrPtr(DefaultCharset), "UTF-8")) &&
2805 (strcasecmp(ChrPtr(DefaultCharset), "us-ascii")) )
2808 ctdl_iconv_open("UTF-8", ChrPtr(DefaultCharset), &ic);
2809 if (ic != (iconv_t)(-1) ) {
2810 StrBufConvert((StrBuf*)DecodeMe, ConvertBuf, &ic);///TODO: don't void const?
2816 /* pre evaluate the first pair */
2817 nextend = end = NULL;
2818 len = StrLength(DecodeMe);
2819 start = strstr(DecodeMe->buf, "=?");
2820 eptr = DecodeMe->buf + DecodeMe->BufUsed;
2822 end = FindNextEnd (DecodeMe, start);
2824 StrBufAppendBuf(Target, DecodeMe, 0);
2825 FreeStrBuf(&ConvertBuf);
2829 ConvertBuf2 = NewStrBufPlain(NULL, StrLength(DecodeMe));
2831 if (start != DecodeMe->buf) {
2834 nFront = start - DecodeMe->buf;
2835 StrBufAppendBufPlain(Target, DecodeMe->buf, nFront, 0);
2839 * Since spammers will go to all sorts of absurd lengths to get their
2840 * messages through, there are LOTS of corrupt headers out there.
2841 * So, prevent a really badly formed RFC2047 header from throwing
2842 * this function into an infinite loop.
2844 while ((start != NULL) &&
2851 DecodeSegment(Target,
2859 next = strstr(end, "=?");
2861 if ((next != NULL) &&
2863 nextend = FindNextEnd(DecodeMe, next);
2864 if (nextend == NULL)
2867 /* did we find two partitions */
2868 if ((next != NULL) &&
2872 while ((ptr < next) &&
2878 /* did we find a gab just filled with blanks? */
2881 long gap = next - start;
2886 /* now terminate the gab at the end */
2887 delta = (next - end) - 2; ////TODO: const!
2888 ((StrBuf*)DecodeMe)->BufUsed -= delta;
2889 ((StrBuf*)DecodeMe)->buf[DecodeMe->BufUsed] = '\0';
2891 /* move next to its new location. */
2896 /* our next-pair is our new first pair now. */
2902 nextend = DecodeMe->buf + DecodeMe->BufUsed;
2903 if ((end != NULL) && (end < nextend)) {
2905 while ( (ptr < nextend) &&
2912 StrBufAppendBufPlain(Target, end, nextend - end, 0);
2914 FreeStrBuf(&ConvertBuf);
2915 FreeStrBuf(&ConvertBuf2);
2919 * \brief evaluate the length of an utf8 special character sequence
2920 * \param Char the character to examine
2921 * \returns width of utf8 chars in bytes
2923 static inline int Ctdl_GetUtf8SequenceLength(char *CharS, char *CharE)
2928 while ((n < 8) && ((test & *CharS) != 0)) {
2932 if ((n > 6) || ((CharE - CharS) > n))
2938 * \brief detect whether this char starts an utf-8 encoded char
2939 * \param Char character to inspect
2940 * \returns yes or no
2942 static inline int Ctdl_IsUtf8SequenceStart(char Char)
2944 /** 11??.???? indicates an UTF8 Sequence. */
2945 return ((Char & 0xC0) != 0);
2949 * \brief measure the number of glyphs in an UTF8 string...
2950 * \param str string to measure
2951 * \returns the length of str
2953 long StrBuf_Utf8StrLen(StrBuf *Buf)
2959 if ((Buf == NULL) || (Buf->BufUsed == 0))
2962 eptr = Buf->buf + Buf->BufUsed;
2963 while ((aptr < eptr) && (*aptr != '\0')) {
2964 if (Ctdl_IsUtf8SequenceStart(*aptr)){
2965 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
2966 while ((aptr < eptr) && (m-- > 0) && (*aptr++ != '\0'))
2979 * \brief cuts a string after maxlen glyphs
2980 * \param str string to cut to maxlen glyphs
2981 * \param maxlen how long may the string become?
2982 * \returns pointer to maxlen or the end of the string
2984 long StrBuf_Utf8StrCut(StrBuf *Buf, int maxlen)
2990 eptr = Buf->buf + Buf->BufUsed;
2991 while ((aptr < eptr) && (*aptr != '\0')) {
2992 if (Ctdl_IsUtf8SequenceStart(*aptr)){
2993 m = Ctdl_GetUtf8SequenceLength(aptr, eptr);
2994 while ((m-- > 0) && (*aptr++ != '\0'))
3003 Buf->BufUsed = aptr - Buf->buf;
3004 return Buf->BufUsed;
3007 return Buf->BufUsed;
3013 int StrBufSipLine(StrBuf *LineBuf, StrBuf *Buf, const char **Ptr)
3015 const char *aptr, *ptr, *eptr;
3022 ptr = aptr = Buf->buf;
3026 optr = LineBuf->buf;
3027 eptr = Buf->buf + Buf->BufUsed;
3028 xptr = LineBuf->buf + LineBuf->BufSize - 1;
3030 while ((*ptr != '\n') &&
3037 LineBuf->BufUsed = optr - LineBuf->buf;
3038 IncreaseBuf(LineBuf, 1, LineBuf->BufUsed + 1);
3039 optr = LineBuf->buf + LineBuf->BufUsed;
3040 xptr = LineBuf->buf + LineBuf->BufSize - 1;
3043 LineBuf->BufUsed = optr - LineBuf->buf;
3052 return Buf->BufUsed - (ptr - Buf->buf);