--- libaitio/inc/aitio.h 2010/02/23 22:54:52 1.1 +++ libaitio/inc/aitio.h 2011/04/20 22:56:32 1.8 @@ -1,15 +1,98 @@ /************************************************************************* -* (C) 2010 AITNET ltd - Sofia/Bulgaria - -* by Michael Pounov +* (C) 2010 AITNET ltd - Sofia/Bulgaria - +* by Michael Pounov * * $Author: misho $ -* $Id: aitio.h,v 1.1 2010/02/23 22:54:52 misho Exp $ +* $Id: aitio.h,v 1.8 2011/04/20 22:56:32 misho Exp $ * -*************************************************************************/ +************************************************************************** +The ELWIX and AITNET software is distributed under the following +terms: + +All of the documentation and software included in the ELWIX and AITNET +Releases is copyrighted by ELWIX - Sofia/Bulgaria + +Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 + by Michael Pounov . All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. All advertising materials mentioning features or use of this software + must display the following acknowledgement: +This product includes software developed by Michael Pounov +ELWIX - Embedded LightWeight unIX and its contributors. +4. Neither the name of AITNET nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. +*/ #ifndef __AITIO_H #define __AITIO_H +#include +#include + + +#define VACUUM_LEFT 1 +#define VACUUM_BETWEEN 2 + + +typedef struct _tagArray { + int arr_num; + void **arr_data; +} array_t; + +typedef struct _tagURLItem { + int vallen; + char *value; +} url_Item_t; + +struct tagIOURL { + unsigned char url_line[BUFSIZ]; + + url_Item_t url_tech; + url_Item_t url_user; + url_Item_t url_pass; + url_Item_t url_host; + url_Item_t url_port; + url_Item_t url_path; + url_Item_t url_args; + + char *url_reserved; +}; + +struct tagReqXML { + unsigned char xml_line[BUFSIZ]; + + url_Item_t xml_namespace; + union { + url_Item_t container; + url_Item_t path; + } xml_node; + url_Item_t xml_data; + url_Item_t xml_attribute; + url_Item_t xml_value; +}; + + // io_GetErrno() Get error code of last operation inline int io_GetErrno(); // io_GetError() Get error text of last operation @@ -62,6 +145,306 @@ int ioRegexGet(const char *csRegex, const char *csData * return: NULL not match or error; !=NULL allocated new string, must be free after use! */ char *ioRegexReplace(const char *csRegex, const char *csData, const char *csNew); + +/* + * ioVarAst() Function for evaluate string like asterisk variable "{text[:[-]#[:#]]}" + * @csString = Input string + * return: NULL error, !=NULL Allocated new string evaluated from input string, must be free() +*/ +char *ioVarAst(const char *csString); + +/* + * io_Path2File() Parse and make path/filename pair + * @csArgs = Input argument line + * @psPath = Output Path, if ==NULL path not returned + * @pathLen = Size of path array + * @psFile = Output File + * @fileLen = Size of file array + * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items +*/ +inline int io_Path2File(const char * __restrict csArgs, char * __restrict psPath, int pathLen, + char * __restrict psFile, int fileLen); + +/* + * io_UnquotStr() Remove quots from input text string + * @psLine = Text string + * return: 0 nothing to do; 1 successful unquoted string +*/ +inline int io_UnquotStr(unsigned char * __restrict psLine); +/* + * io_LTrimStr() Remove left whitespaces from text string + * @psLine = Text string + * return: 0 nothing to do; !=0 Removed bytes +*/ +inline int io_LTrimStr(unsigned char * __restrict psLine); +/* + * io_RTrimStr() Remove right whitespaces from text string + * @psLine = Text string + * return: 0 nothing to do; !=0 Removed bytes +*/ +inline int io_RTrimStr(unsigned char * __restrict psLine); +/* + * io_TrimStr() Remove left and right whitespaces from text string + * @psLine = Text string + * return: 0 nothing to do; !=0 Removed bytes +*/ +inline int io_TrimStr(unsigned char * __restrict psLine); +/* + * io_Ch2Hex() Convert from Char string to Hex string + * @psLine = Text string + * @lineLen = Length of Text string + * return: NULL nothing to do or error; !=0 Allocated new converted data without term\0 (must be free) +*/ +inline unsigned char *io_Ch2Hex(unsigned char *psLine, int lineLen); +/* + * io_Hex2Ch() Convert from Hex string to Char string + * @psLine = Text string + * @lineLen = Length of Text string + * return: NULL nothing to do or error; !=0 Allocated new converted string(must be free) +*/ +inline char *io_Hex2Ch(unsigned char *psLine, int lineLen); + +/* + * io_arrayInit() - Create and initialize dynamic array + * @numItems = Number of Items + * return: NULL error, != NULL allocated memory for array + */ +inline array_t *io_arrayInit(int numItems); +/* + * io_arrayDestroy() - Free all data in dynamic array and Destroy dynamic array + * @parr = Array + * return: none + */ +inline void io_arrayDestroy(array_t ** __restrict parr); +/* + * io_arrayFree() - Free all data in dynamic array + * (WARNING! If assign static array dont use this!!!) + * @arr = Array + * return: none + */ +inline void io_arrayFree(array_t * __restrict arr); +/* + * io_arrayLen() - Get last used element in dynamic array (array Length) + * @arr = Array + * return: -1 error, 0 empty or >0 position of last used element + */ +inline int io_arrayLen(array_t * __restrict arr); +/* + * io_arrayGrow() - Grow/Shrink dynamic array, Use with care when it shrink!!! + * @arr = Array + * @newNumItems = Number of Items + * return: -1 error, 0 ok + */ +int io_arrayGrow(array_t * __restrict arr, int newNumItems); +/* + * io_arrayVacuum() - Vacuum dynamic array, empty elements will be deleted + * @arr = Array + * @fromWhere = 1 begin, 2 ALL empty elements + * return: -1 error, 0 ok + */ +int io_arrayVacuum(array_t * __restrict arr, int fromWhere); + +#define io_arraySize(_arr) ((assert(_arr)), _arr->arr_num) + +#define io_arrayGet(_arr, _d, _type) ((assert(_arr && _arr->arr_num > _d)), \ + ((_type) *(_arr->arr_data + _d))) +#define io_arraySet(_arr, _d, _ptr) do { \ + assert(_arr && _arr->arr_num > _d); \ + *(_arr->arr_data + _d) = (void*) _ptr; \ + } while (0) + +/* + * io_arrayPush() - Push element into dynamic array like stack manner, place at first empty position + * @arr = Array + * @data = Element, if set NULL return only first empty position + * return: -1 not found empty position, array is full!, >-1 return position of stored element into array + */ +inline int io_arrayPush(array_t * __restrict arr, void **data); +/* + * io_arrayPop() - Pop element from dynamic array like stack manner, last used position + * @arr = Array + * @data = Element, if set NULL return only first empty position + * @delAfter = Delete after Pop element, !=0 delete element from array after return data + * return: -1 not found used position, array is empty!, >-1 return element position + */ +inline int io_arrayPop(array_t * __restrict arr, void ** __restrict data, int delAfter); + +/* + * io_argsNum() Parse and calculate number of arguments + * @csArgs = Input arguments line + * @csDelim = Delimiter(s) for separate + * return: 0 error format; -1 error:: can`t read; >0 ok, number of items + */ +inline int io_argsNum(const char *csArgs, const char *csDelim); + +/* + * io_arrayMake() Parse and make array from arguments ... (input string will be modified!!! + * and output array must be free with io_arrayDestroy() after use!) + * @psArgs = Input arguments line, after execute string is modified!!! + * @nargs = Maximum requested count of arguments from input string psArgs, if 0 all psArgs + * @csDelim = Delimiter(s) for separate + * @parr = Output array of arguments ... (must be free with io_arrayDestroy() after use!) + * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items + */ +int io_arrayMake(char * __restrict psArgs, int nargs, const char *csDelim, + array_t ** __restrict parr); + +/* + * io_MakeAV() Parse and make attribute/value pair + * @csArgs = Input argument line + * @csDelim = Delimiter for separate + * @psAttr = Output Attribute + * @attrLen = Size of attribute array + * @psValue = Output Value, if ==NULL this element not present value or not wanted for return + * @valLen = Size of value array + * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items +*/ +int io_MakeAV(const char * __restrict csArgs, const char *csDelim, + char * __restrict psAttr, int attrLen, char * __restrict psValue, int valLen); + + +/* + * ioURLGet() Parse and get data from input URL + * @csURL = Input URL line + * @url = Output parsed URL + * return: 0 error format not find tech:// and return URL like path; + -1 error:: can`t read; >0 ok, up bits for known elements +*/ +int ioURLGet(const char *csURL, struct tagIOURL *url); +/* + * ioURLGetValue() Get value from parsed URL + * @url = Input parsed URL + * @csAttr = Attribute for search + * @psValue = Return value of attribute, if ==NULL only check for existence of attribute + * @valLen = Size of psValue array + * return: 0 error attribute not find; -1 error:: can`t read; >0 ok, find at position +*/ +int ioURLGetValue(struct tagIOURL *url, const char *csAttr, char * __restrict psValue, int valLen); +/* + * ioURLGetFile() Get file from parsed URL + * @url = Input parsed URL + * @psValue = Return filename, if not specified file in url path, replace with / + * @valLen = Size of psValue array + * return: -1 error:: can`t read; 0 ok +*/ +int ioURLGetFile(struct tagIOURL *url, char * __restrict psValue, int valLen); + + +/* + * ioXMLGet() Parse and get data from input XML request string [ns:]container[|attribute[=value]][?data] + * @csXML = Input XML request line + * @xml = Output parsed XML request + * return: 0 error format incorrect, -1 error:: can`t read; >0 ok readed elements bits +*/ +int ioXMLGet(const char *csXML, struct tagReqXML *xml); + + +/* + * ioMkDir() Function for racursive directory creation and validation + * @csDir = Full directory path + * @mode = Mode for directory creation if missing dir + * return: -1 error, 0 directory path exist, >0 created missing dirs +*/ +int ioMkDir(const char *csDir, int mode); + +/* + * ioWatchDirLoop() Function for watching changes in directory and fire callback + * @csDir = Full directory path + * @callback = Callback if raise event! nOp -1 delete, 0 change/move, 1 create + * return: -1 error, !=-1 ok, number of total signaled events +*/ +int ioWatchDirLoop(const char *csDir, int (*callback)(const char *csName, int nOp)); + + +/* + * io_rread() Raw VFS read function + * @fd = File handle + * @buf = Read buffer + * @nbytes = Read buffer size + * @offset = Read from position, if -1 read nbytes from current position + * @update = Update file handle position !0 + * return: -1 error or !=-1 readed bytes + */ +inline int io_rread(int fd, void * __restrict buf, size_t nbytes, off_t offset, int update); +/* + * io_rwrite() Raw VFS write function + * @fd = File handle + * @buf = Write buffer + * @nbytes = Write bytes from buffer + * @offset = Write at position, if -1 write nbytes from current position + * @update = Update file handle position !0 + * return: -1 error or !=-1 writed bytes + */ +inline int io_rwrite(int fd, void * __restrict buf, size_t nbytes, off_t offset, int update); + +/* Disk I/O helper macros */ +#define io_read(f, b, n) io_rread(f, b, n, -1, 1) +#define io_write(f, b, n) io_rwrite(f, b, n, -1, 1) + + +/* Debug helper macros */ +extern int io_Debug; + +#define io_initDebug(x) io_Debug = (x); +#define io_addDebug io_Debug++ +#define ioDEBUG(x, fmt, ...) do { \ + assert((fmt)); \ + char str[STRSIZ] = { 0 }; \ + snprintf(str, STRSIZ, (fmt), ##__VA_ARGS__); \ + if ((x) <= io_Debug) \ + syslog(LOG_DEBUG, "ioDebug(%d):%s(%d): %s\n", \ + (x), __func__, __LINE__, str); \ + } while (0) + +#define ioERROR(x, fmt, ...) do { \ + assert((fmt)); \ + char str[STRSIZ] = { 0 }; \ + snprintf(str, STRSIZ, (fmt), ##__VA_ARGS__); \ + syslog(LOG_ERR, "ioError():%s(%d): #%d - %s\n", \ + __func__, __LINE__, (x), str); \ + } while (0) +#define io_sysERROR(x) do { \ + if (x > 0 || errno) \ + syslog(LOG_ERR, "ioError(sys):%s(%d): #%d - %s\n", \ + __func__, __LINE__, x > 0 ? x : errno, \ + strerror(x > 0 ? x : errno)); \ + } while (0) +#define io_aitERROR(ait) do { \ + if (ait##_GetErrno()) \ + syslog(LOG_ERR, "ioError(ait):%s(%d): #%d - %s\n", \ + __func__, __LINE__, ait##_GetErrno(), \ + ait##_GetError()); \ + } while (0) + + +/* Crypto framework */ + +/* + * ioCipher() Cipher wrapper for all supported crypto algorythms + * @pInput = input buffer + * @inLen = input buffer len + * @ppOutput = output allocated buffe, must be free after use + * @Cipher = cipher engine, like EVP_bf_cbc() or etc... + * @pKey = key + * @pIV = IV, salt (8 bytes) + * @nMode = Mode 0 - decrypting or 1 - encrypting + * return: 0 not present data or error!; >0 number of processed and returned bytes into ppOutput +*/ +int ioCipher(unsigned char *pInput, int inLen, unsigned char **ppOutput, const EVP_CIPHER *Cipher, + unsigned char *pKey, unsigned char *pIV, int nMode); + +/* + * io_Blowfish() Blowfish cipher algorythm, work with ASCII hex strings + * @pInput = input buffer + * @inLen = input buffer len + * @ppOutput = output allocated buffe, must be free after use + * @pKey = key + * @pIV = IV, salt (8 bytes) + * @nMode = Mode 0 - decrypting or 1 - encrypting + * return: 0 not present data or error!; >0 number of processed and returned bytes into ppOutput +*/ +int io_Blowfish(unsigned char *pInput, int inLen, unsigned char **ppOutput, + unsigned char *pKey, unsigned char *pIV, int nMode); #endif