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-rwxr-xr-xstringbuf.h135
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-/*! \file stringbuf.h
- * \brief The counted string object
- *
- * This is the byte-counted string class for rsyslog. It is a replacement
- * for classical \0 terminated string functions. We introduce it in
- * the hope it will make the program more secure, obtain some performance
- * and, most importantly, lay they foundation for syslog-protocol, which
- * requires strings to be able to handle embedded \0 characters.
- *
- * \author Rainer Gerhards <rgerhards@adiscon.com>
- * \date 2005-09-07
- * Initial version begun.
- *
- * All functions in this "class" start with rsCStr (rsyslog Counted String).
- * Copyright 2005
- * Rainer Gerhards and Adiscon GmbH. All Rights Reserved.
- * This code is placed under the GPL.
- */
-#ifndef _STRINGBUF_H_INCLUDED__
-#define _STRINGBUF_H_INCLUDED__ 1
-
-/**
- * The dynamic string buffer object.
- */
-struct rsCStrObject
-{
-#ifndef NDEBUG
- rsObjID OID; /**< object ID */
-#endif
- uchar *pBuf; /**< pointer to the string buffer, may be NULL if string is empty */
- uchar *pszBuf; /**< pointer to the sz version of the string (after it has been created )*/
- size_t iBufSize; /**< current maximum size of the string buffer */
- size_t iStrLen; /**< length of the string in characters. */
- size_t iAllocIncrement; /**< the amount of bytes the string should be expanded if it needs to */
-};
-typedef struct rsCStrObject rsCStrObj;
-
-
-/**
- * Construct a rsCStr object.
- */
-rsCStrObj *rsCStrConstruct(void);
-rsRetVal rsCStrConstructFromszStr(rsCStrObj **ppThis, uchar *sz);
-rsRetVal rsCStrConstructFromCStr(rsCStrObj **ppThis, rsCStrObj *pFrom);
-
-/**
- * Destruct the string buffer object.
- */
-void rsCStrDestruct(rsCStrObj *pThis);
-
-/**
- * Append a character to an existing string. If necessary, the
- * method expands the string buffer.
- *
- * \param c Character to append to string.
- */
-rsRetVal rsCStrAppendChar(rsCStrObj *pThis, uchar c);
-
-/**
- * Finish the string buffer dynamic allocation.
- */
-rsRetVal rsCStrFinish(rsCStrObj *pThis);
-
-/**
- * Truncate "n" number of characters from the end of the
- * string. The buffer remains unchanged, just the
- * string length is manipulated. This is for performance
- * reasons.
- */
-rsRetVal rsCStrTruncate(rsCStrObj *pThis, size_t nTrunc);
-
-rsRetVal rsCStrTrimTrailingWhiteSpace(rsCStrObj *pThis);
-
-/**
- * Append a string to the buffer. For performance reasons,
- * use rsCStrAppenStrWithLen() if you know the length.
- *
- * \param psz pointer to string to be appended. Must not be NULL.
- */
-rsRetVal rsCStrAppendStr(rsCStrObj *pThis, uchar* psz);
-
-/**
- * Append a string to the buffer.
- *
- * \param psz pointer to string to be appended. Must not be NULL.
- * \param iStrLen the length of the string pointed to by psz
- */
-rsRetVal rsCStrAppendStrWithLen(rsCStrObj *pThis, uchar* psz, size_t iStrLen);
-
-/**
- * Set a new allocation incremet. This will influence
- * the allocation the next time the string will be expanded.
- * It can be set and changed at any time. If done immediately
- * after custructing the StrB object, this will also be
- * the inital allocation.
- *
- * \param iNewIncrement The new increment size
- *
- * \note It is possible to use a very low increment, e.g. 1 byte.
- * This can generate a considerable overhead. We highly
- * advise not to use an increment below 32 bytes, except
- * if you are very well aware why you are doing it ;)
- */
-void rsCStrSetAllocIncrement(rsCStrObj *pThis, int iNewIncrement);
-
-/**
- * Append an integer to the string. No special formatting is
- * done.
- */
-rsRetVal rsCStrAppendInt(rsCStrObj *pThis, int i);
-
-
-uchar* rsCStrGetSzStr(rsCStrObj *pThis);
-uchar* rsCStrGetSzStrNoNULL(rsCStrObj *pThis);
-rsRetVal rsCStrSetSzStr(rsCStrObj *pThis, uchar *pszNew);
-rsRetVal rsCStrConvSzStrAndDestruct(rsCStrObj *pThis, uchar **ppSz, int bRetNULL);
-int rsCStrCStrCmp(rsCStrObj *pCS1, rsCStrObj *pCS2);
-int rsCStrSzStrCmp(rsCStrObj *pCS1, uchar *psz, size_t iLenSz);
-int rsCStrOffsetSzStrCmp(rsCStrObj *pCS1, size_t iOffset, uchar *psz, size_t iLenSz);
-int rsCStrLocateSzStr(rsCStrObj *pCStr, uchar *sz);
-int rsCStrLocateInSzStr(rsCStrObj *pThis, uchar *sz);
-int rsCStrStartsWithSzStr(rsCStrObj *pCS1, uchar *psz, size_t iLenSz);
-int rsCStrSzStrStartsWithCStr(rsCStrObj *pCS1, uchar *psz, size_t iLenSz);
-int rsCStrSzStrMatchRegex(rsCStrObj *pCS1, uchar *psz);
-
-/* now come inline-like functions */
-#ifdef NDEBUG
-# define rsCStrLen(x) ((int)((x)->iStrLen))
-#else
- int rsCStrLen(rsCStrObj *pThis);
-#endif
-
-#define rsCStrGetBufBeg(x) ((x)->pBuf)
-
-#endif /* single include */