1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: aitio.h,v 1.7 2011/04/19 20:00:31 misho Exp $
7: *
8: *************************************************************************/
9: #ifndef __AITIO_H
10: #define __AITIO_H
11:
12:
13: #include <openssl/evp.h>
14:
15:
16: typedef struct _tagURLItem {
17: int vallen;
18: char *value;
19: } url_Item_t;
20:
21: struct tagIOURL {
22: unsigned char url_line[BUFSIZ];
23:
24: url_Item_t url_tech;
25: url_Item_t url_user;
26: url_Item_t url_pass;
27: url_Item_t url_host;
28: url_Item_t url_port;
29: url_Item_t url_path;
30: url_Item_t url_args;
31:
32: char *url_reserved;
33: };
34:
35: struct tagReqXML {
36: unsigned char xml_line[BUFSIZ];
37:
38: url_Item_t xml_namespace;
39: union {
40: url_Item_t container;
41: url_Item_t path;
42: } xml_node;
43: url_Item_t xml_data;
44: url_Item_t xml_attribute;
45: url_Item_t xml_value;
46: };
47:
48:
49: // io_GetErrno() Get error code of last operation
50: inline int io_GetErrno();
51: // io_GetError() Get error text of last operation
52: inline const char *io_GetError();
53:
54:
55: /*
56: * ioPromptRead() Read data from input h[0] with prompt to output h[1]
57: * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout
58: * @csPrompt = Prompt before input, may be NULL
59: * @psData = Readed data
60: * @dataLen = Length of data
61: * return: 0 EOF; -1 error:: can`t read; >0 count of readed chars
62: */
63: int ioPromptRead(int *h, const char *csPrompt, char * __restrict psData, int dataLen);
64: /*
65: * ioPromptPassword() Read password from input h[0] with prompt to output h[1]
66: * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout
67: * @csPrompt = Prompt before input, may be NULL
68: * @psPass = Readed password
69: * @passLen = Length of password
70: * @confirm = Confirm password, 0 - get password, !=0 Ask for confirmation
71: * return: 0 EOF; -1 error:: can`t read; >0 count of readed chars
72: */
73: int ioPromptPassword(int *h, const char *csPrompt, char * __restrict psPass, int passLen, int confirm);
74:
75: /*
76: * ioRegexVerify() Function for verify data match in regex expression
77: * @csRegex = Regulare expression pattern
78: * @csData = Data for check and verify
79: * @startPos = Return start positions
80: * @endPos = Return end positions
81: * return: NULL not match or error; !=NULL begin of matched data
82: */
83: const char *ioRegexVerify(const char *csRegex, const char *csData, int *startPos, int *endPos);
84: /*
85: * ioRegexGet() Function for get data match in regex expression
86: * @csRegex = Regulare expression pattern
87: * @csData = Data from get
88: * @psString = Returned string if match
89: * @strLen = Length of string
90: * return: 0 not match; >0 count of returned chars
91: */
92: int ioRegexGet(const char *csRegex, const char *csData, char * __restrict psString, int strLen);
93: /*
94: * ioRegexReplace() Function for replace data match in regex expression with newdata
95: * @csRegex = Regulare expression pattern
96: * @csData = Source data
97: * @csNew = Data for replace
98: * return: NULL not match or error; !=NULL allocated new string, must be free after use!
99: */
100: char *ioRegexReplace(const char *csRegex, const char *csData, const char *csNew);
101:
102: /*
103: * ioVarAst() Function for evaluate string like asterisk variable "{text[:[-]#[:#]]}"
104: * @csString = Input string
105: * return: NULL error, !=NULL Allocated new string evaluated from input string, must be free()
106: */
107: char *ioVarAst(const char *csString);
108:
109: /*
110: * io_Path2File() Parse and make path/filename pair
111: * @csArgs = Input argument line
112: * @psPath = Output Path, if ==NULL path not returned
113: * @pathLen = Size of path array
114: * @psFile = Output File
115: * @fileLen = Size of file array
116: * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items
117: */
118: inline int io_Path2File(const char * __restrict csArgs, char * __restrict psPath, int pathLen,
119: char * __restrict psFile, int fileLen);
120: /*
121: * io_MakeAV() Parse and make attribute/value pair
122: * @csArgs = Input argument line
123: * @csDelim = Delimiter for separate
124: * @psAttr = Output Attribute
125: * @attrLen = Size of attribute array
126: * @psValue = Output Value, if ==NULL this element not present value or not wanted for return
127: * @valLen = Size of value array
128: * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items
129: */
130: inline int io_MakeAV(const char * __restrict csArgs, const char *csDelim,
131: char * __restrict psAttr, int attrLen, char * __restrict psValue, int valLen);
132: /*
133: * io_SizeArray() Parse and calculate size of array
134: * @csArgs = Input arguments line
135: * @csDelim = Delimiter(s) for separate
136: * return: 0 error format; -1 error:: can`t read; >0 ok, number of items
137: */
138: inline int io_SizeArray(const char *csArgs, const char *csDelim);
139: /*
140: * io_MakeArray() Parse and make array of arguments values ...
141: * (input string will be modified! and output array must be free)
142: * @psArgs = Input arguments line, after execute string is modified!!!
143: * @csDelim = Delimiter(s) for separate
144: * @args = Output array of arguments ... (must be free() after procced function!)
145: * @nargs = Maximum requested count of arguments from input string psArgs
146: * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items
147: */
148: inline int io_MakeArray(char * __restrict psArgs, const char *csDelim,
149: char *** __restrict args, int nargs);
150:
151: /*
152: * io_UnquotStr() Remove quots from input text string
153: * @psLine = Text string
154: * return: 0 nothing to do; 1 successful unquoted string
155: */
156: inline int io_UnquotStr(unsigned char * __restrict psLine);
157: /*
158: * io_LTrimStr() Remove left whitespaces from text string
159: * @psLine = Text string
160: * return: 0 nothing to do; !=0 Removed bytes
161: */
162: inline int io_LTrimStr(unsigned char * __restrict psLine);
163: /*
164: * io_RTrimStr() Remove right whitespaces from text string
165: * @psLine = Text string
166: * return: 0 nothing to do; !=0 Removed bytes
167: */
168: inline int io_RTrimStr(unsigned char * __restrict psLine);
169: /*
170: * io_TrimStr() Remove left and right whitespaces from text string
171: * @psLine = Text string
172: * return: 0 nothing to do; !=0 Removed bytes
173: */
174: inline int io_TrimStr(unsigned char * __restrict psLine);
175: /*
176: * io_Ch2Hex() Convert from Char string to Hex string
177: * @psLine = Text string
178: * @lineLen = Length of Text string
179: * return: NULL nothing to do or error; !=0 Allocated new converted data without term\0 (must be free)
180: */
181: inline unsigned char *io_Ch2Hex(unsigned char *psLine, int lineLen);
182: /*
183: * io_Hex2Ch() Convert from Hex string to Char string
184: * @psLine = Text string
185: * @lineLen = Length of Text string
186: * return: NULL nothing to do or error; !=0 Allocated new converted string(must be free)
187: */
188: inline char *io_Hex2Ch(unsigned char *psLine, int lineLen);
189:
190: /*
191: * ioURLGet() Parse and get data from input URL
192: * @csURL = Input URL line
193: * @url = Output parsed URL
194: * return: 0 error format not find tech:// and return URL like path;
195: -1 error:: can`t read; >0 ok, up bits for known elements
196: */
197: int ioURLGet(const char *csURL, struct tagIOURL *url);
198: /*
199: * ioURLGetValue() Get value from parsed URL
200: * @url = Input parsed URL
201: * @csAttr = Attribute for search
202: * @psValue = Return value of attribute, if ==NULL only check for existence of attribute
203: * @valLen = Size of psValue array
204: * return: 0 error attribute not find; -1 error:: can`t read; >0 ok, find at position
205: */
206: int ioURLGetValue(struct tagIOURL *url, const char *csAttr, char * __restrict psValue, int valLen);
207: /*
208: * ioURLGetFile() Get file from parsed URL
209: * @url = Input parsed URL
210: * @psValue = Return filename, if not specified file in url path, replace with /
211: * @valLen = Size of psValue array
212: * return: -1 error:: can`t read; 0 ok
213: */
214: int ioURLGetFile(struct tagIOURL *url, char * __restrict psValue, int valLen);
215:
216:
217: /*
218: * ioXMLGet() Parse and get data from input XML request string [ns:]container[|attribute[=value]][?data]
219: * @csXML = Input XML request line
220: * @xml = Output parsed XML request
221: * return: 0 error format incorrect, -1 error:: can`t read; >0 ok readed elements bits
222: */
223: int ioXMLGet(const char *csXML, struct tagReqXML *xml);
224:
225:
226: /*
227: * ioMkDir() Function for racursive directory creation and validation
228: * @csDir = Full directory path
229: * @mode = Mode for directory creation if missing dir
230: * return: -1 error, 0 directory path exist, >0 created missing dirs
231: */
232: int ioMkDir(const char *csDir, int mode);
233:
234: /*
235: * ioWatchDirLoop() Function for watching changes in directory and fire callback
236: * @csDir = Full directory path
237: * @callback = Callback if raise event! nOp -1 delete, 0 change/move, 1 create
238: * return: -1 error, !=-1 ok, number of total signaled events
239: */
240: int ioWatchDirLoop(const char *csDir, int (*callback)(const char *csName, int nOp));
241:
242:
243: /*
244: * io_rread() Raw VFS read function
245: * @fd = File handle
246: * @buf = Read buffer
247: * @nbytes = Read buffer size
248: * @offset = Read from position, if -1 read nbytes from current position
249: * @update = Update file handle position !0
250: * return: -1 error or !=-1 readed bytes
251: */
252: inline int io_rread(int fd, void * __restrict buf, size_t nbytes, off_t offset, int update);
253: /*
254: * io_rwrite() Raw VFS write function
255: * @fd = File handle
256: * @buf = Write buffer
257: * @nbytes = Write bytes from buffer
258: * @offset = Write at position, if -1 write nbytes from current position
259: * @update = Update file handle position !0
260: * return: -1 error or !=-1 writed bytes
261: */
262: inline int io_rwrite(int fd, void * __restrict buf, size_t nbytes, off_t offset, int update);
263:
264: /* Disk I/O helper macros */
265: #define io_read(f, b, n) io_rread(f, b, n, -1, 1)
266: #define io_write(f, b, n) io_rwrite(f, b, n, -1, 1)
267:
268:
269: /* Debug helper macros */
270: extern int io_Debug;
271:
272: #define io_initDebug(x) io_Debug = (x);
273: #define io_addDebug io_Debug++
274: #define ioDEBUG(x, fmt, ...) do { \
275: assert((fmt)); \
276: char str[STRSIZ] = { 0 }; \
277: snprintf(str, STRSIZ, (fmt), ##__VA_ARGS__); \
278: if ((x) <= io_Debug) \
279: syslog(LOG_DEBUG, "ioDebug(%d):%s(%d): %s\n", \
280: (x), __func__, __LINE__, str); \
281: } while (0)
282:
283: #define ioERROR(x, fmt, ...) do { \
284: assert((fmt)); \
285: char str[STRSIZ] = { 0 }; \
286: snprintf(str, STRSIZ, (fmt), ##__VA_ARGS__); \
287: syslog(LOG_ERR, "ioError():%s(%d): #%d - %s\n", \
288: __func__, __LINE__, (x), str); \
289: } while (0)
290: #define io_sysERROR(x) do { \
291: if (x > 0 || errno) \
292: syslog(LOG_ERR, "ioError(sys):%s(%d): #%d - %s\n", \
293: __func__, __LINE__, x > 0 ? x : errno, \
294: strerror(x > 0 ? x : errno)); \
295: } while (0)
296: #define io_aitERROR(ait) do { \
297: if (ait##_GetErrno()) \
298: syslog(LOG_ERR, "ioError(ait):%s(%d): #%d - %s\n", \
299: __func__, __LINE__, ait##_GetErrno(), \
300: ait##_GetError()); \
301: } while (0)
302:
303:
304: /* Crypto framework */
305:
306: /*
307: * ioCipher() Cipher wrapper for all supported crypto algorythms
308: * @pInput = input buffer
309: * @inLen = input buffer len
310: * @ppOutput = output allocated buffe, must be free after use
311: * @Cipher = cipher engine, like EVP_bf_cbc() or etc...
312: * @pKey = key
313: * @pIV = IV, salt (8 bytes)
314: * @nMode = Mode 0 - decrypting or 1 - encrypting
315: * return: 0 not present data or error!; >0 number of processed and returned bytes into ppOutput
316: */
317: int ioCipher(unsigned char *pInput, int inLen, unsigned char **ppOutput, const EVP_CIPHER *Cipher,
318: unsigned char *pKey, unsigned char *pIV, int nMode);
319:
320: /*
321: * io_Blowfish() Blowfish cipher algorythm, work with ASCII hex strings
322: * @pInput = input buffer
323: * @inLen = input buffer len
324: * @ppOutput = output allocated buffe, must be free after use
325: * @pKey = key
326: * @pIV = IV, salt (8 bytes)
327: * @nMode = Mode 0 - decrypting or 1 - encrypting
328: * return: 0 not present data or error!; >0 number of processed and returned bytes into ppOutput
329: */
330: int io_Blowfish(u_char *pInput, int inLen, u_char **ppOutput, u_char *pKey, u_char *pIV, int nMode);
331:
332:
333: #endif
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