1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: aitcfg.h,v 1.6 2011/05/01 17:24:28 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #ifndef __AITCFG_H
47: #define __AITCFG_H
48:
49:
50: struct tagPair {
51: unsigned int uLine;
52: unsigned char *psSection;
53: unsigned char *psAttribute;
54: unsigned char *psValue;
55: struct tagPair *sle_next;
56: };
57:
58: struct tagHead {
59: struct tagPair *slh_first;
60: };
61: typedef struct tagHead sl_config;
62:
63:
64: /*
65: * Macros for config library. Typecast string to specific config string format.
66: */
67: #define CFG(x) (unsigned char *)(x)
68:
69: #define CFG_ISSET(x) ((long) cfg_FirstItem((x)))
70:
71:
72: /*
73: * InitConfig() Head initializing function for config
74: * @cfg = New head element for init
75: * return: 0 ok; -1 error:: new head element is null
76: */
77: inline int InitConfig(sl_config * __restrict cfg);
78: /*
79: * cfg_CreateConfig() Create config file from memory without whitespaces!
80: * @csConfigName = New config filename
81: * @cfg = Head list element
82: * return: 0 ok; -1 error:: can`t save new config
83: */
84: int cfg_CreateConfig(const char *csConfigName, sl_config * __restrict cfg);
85: /*
86: * CreateConfig() Create config file from memory
87: * @csConfigName = New config filename
88: * @cfg = Head list element
89: * return: 0 ok; -1 error:: can`t save new config
90: */
91: int CreateConfig(const char *csConfigName, sl_config * __restrict cfg);
92: /*
93: * LoadConfig() Load config from file
94: * @csConfigName = Filename of config
95: * @cfg = Head list element
96: * return: 0 ok; -1 error:: can`t load config
97: */
98: int LoadConfig(const char *csConfigName, sl_config * __restrict cfg);
99: /*
100: * UnloadConfig() Unload config from memory and free resources
101: * @cfg = Head list element
102: */
103: void UnloadConfig(sl_config * __restrict cfg);
104:
105:
106: // cfg_GetErrno() Get error code of last operation
107: inline int cfg_GetErrno();
108: // cfg_GetError() Get error text of last operation
109: inline const char *cfg_GetError();
110:
111:
112: /*
113: * ReadConfig() Read from file and add new item to config list
114: * @f = file resource
115: * @cfg = Head list element
116: * return: 0 ok; -1 error:: can`t allocate memory
117: */
118: int ReadConfig(FILE *f, sl_config * __restrict cfg);
119: /*
120: * WriteConfig() Write to file from items in config list
121: * @f = file resource
122: * @cfg = Head list element
123: * return: 0 ok; -1 error:: can`t write to file
124: */
125: int WriteConfig(FILE *f, sl_config * __restrict cfg);
126:
127: /*
128: * cfg_WriteConfig() Write to file from items in config list without whitespaces!
129: * @f = file resource
130: * @cfg = Head list element
131: * return: 0 ok; -1 error:: can`t write to file
132: */
133: int cfg_WriteConfig(FILE *f, sl_config * __restrict cfg);
134:
135: /*
136: * ConcatConfig() Concat two list in one
137: * @cfg = Head list element of main list
138: * @add_cfg = Head list element of added list
139: * return: 0 ok; -1 error:: can`t concat lists
140: */
141: int ConcatConfig(sl_config * __restrict cfg, sl_config * __restrict add_cfg);
142:
143: /*
144: * MergeConfig() Marge two list in one cfg and destroy add_cfg
145: * @cfg = Head list element of main list
146: * @add_cfg = Head list element of merged list (destroy after all!)
147: * return: 0 ok; -1 error:: can`t merge lists
148: */
149: int MergeConfig(sl_config * __restrict cfg, sl_config * __restrict add_cfg);
150:
151:
152: /*
153: * cfg_FindAttribute() Find attribute position in config list
154: * @cfg = Head list element
155: * @csSec = Config section //[{csSec}]
156: * @csAttr = Config attribute //{csAttr} = ...
157: * return: 0 not found item; -1 error: null parameters; >0 position in list
158: */
159: inline int cfg_FindAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr);
160: /*
161: * cfg_SetAttribute() Set item in config list or add new item if not exists
162: * @cfg = Head list element
163: * @csSec = Config section //[{csSec}], if NULL set in *default* section
164: * @csAttr = Config attribute //{csAttr} = ..., if NULL set as *any* attribute
165: * @csVal = Config value //... = {csVal} to setup
166: * return: 0 nothing changed, -1 error: not enough memory; 1 find and update item; 2 added new item
167: */
168: int cfg_SetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr, const u_char *csVal);
169: /*
170: * cfg_UnsetAttribute() Unset item from config list and free resources
171: * @cfg = Head list element
172: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
173: * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute
174: * return: 0 item not found, -1 error: null parameters; >0 position in list
175: */
176: int cfg_UnsetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr);
177: /*
178: * cfg_GetAttribute() Get item from config list and return his value
179: * @cfg = Head list element
180: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
181: * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute
182: * return: NULL item not found or null parameters; !=NULL value const string
183: */
184: inline const u_char *cfg_GetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr);
185:
186: /*
187: * cfg_FirstItem() Get first item from config list and return his value
188: * @cfg = Head list element
189: * return: NULL if no items in list; !=NULL first pair item
190: */
191: inline struct tagPair *cfg_FirstItem(sl_config * __restrict cfg);
192:
193: /*
194: * cfg_LoadAttribute() Extended get attribute, if not found item return *default value*
195: * @cfg = Head list element
196: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
197: * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute
198: * @psVal = Return buffer for item Value //... = {psVal}
199: * @ValLen = Length of buffer //{psVal} for return
200: * @csDefValue = *Default Value* for return in //{psVal}, if not found item in config list
201: * return: 0 item not found, -1 error: null parameters; >0 number of copied bytes in //{psVal}
202: */
203: int cfg_LoadAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr,
204: u_char * __restrict psVal, int ValLen, const char *csDefValue);
205:
206:
207: #endif
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