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.c,v 1.4.2.1 2011/05/10 20:52:36 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: #include "global.h"
47: #include "aitcfg.h"
48:
49:
50: #pragma GCC visibility push(hidden)
51:
52: int cfgErrno;
53: char cfgError[MAX_STR + 1];
54:
55: #pragma GCC visibility pop
56:
57:
58: /*
59: * InitConfig() Head initializing function for config
60: * @cfg = New head element for init
61: * return: 0 ok; -1 error:: new head element is null
62: */
63: inline int
64: InitConfig(sl_config * __restrict cfg)
65: {
66: if (!cfg)
67: return -1;
68:
69: cfg->slh_first = NULL;
70: return 0;
71: }
72:
73: /*
74: * LoadConfig() Load config from file
75: * @csConfigName = Filename of config
76: * @cfg = Head list element
77: * return: 0 ok; -1 error:: can`t load config
78: */
79: int
80: LoadConfig(const char *csConfigName, sl_config * __restrict cfg)
81: {
82: FILE *f;
83: int ret;
84:
85: if (!csConfigName || !cfg)
86: return -1;
87:
88: InitConfig(cfg);
89: if (access(csConfigName, R_OK)) {
90: LOGERR;
91: return -1;
92: }
93:
94: f = fopen(csConfigName, "rt");
95: if (!f) {
96: LOGERR;
97: return -1;
98: }
99:
100: ret ^= ret;
101: ret = ReadConfig(f, cfg);
102:
103: fclose(f);
104: return ret;
105: }
106:
107: /*
108: * UnloadConfig() Unload config from memory and free resources
109: * @cfg = Head list element
110: */
111: void
112: UnloadConfig(sl_config * __restrict cfg)
113: {
114: struct tagPair *av;
115:
116: if (!cfg->slh_first)
117: return;
118:
119: while ((av = cfg->slh_first)) {
120: cfg->slh_first = cfg->slh_first->sle_next;
121:
122: if (av->psValue)
123: free(av->psValue);
124: if (av->psAttribute)
125: free(av->psAttribute);
126: if (av->psSection)
127: free(av->psSection);
128: free(av);
129: }
130: }
131:
132: /*
133: * CreateConfig() Create config file from memory
134: * @csConfigName = New config filename
135: * @cfg = Head list element
136: * return: 0 ok; -1 error:: can`t save new config
137: */
138: int
139: CreateConfig(const char *csConfigName, sl_config * __restrict cfg)
140: {
141: FILE *f;
142: int ret;
143:
144: if (!csConfigName || !cfg)
145: return -1;
146:
147: f = fopen(csConfigName, "wt");
148: if (!f) {
149: LOGERR;
150: return -1;
151: }
152:
153: ret ^= ret;
154: ret = WriteConfig(f, cfg);
155:
156: fclose(f);
157: return ret;
158: }
159:
160: /*
161: * cfg_CreateConfig() Create config file from memory without whitespaces!
162: * @csConfigName = New config filename
163: * @cfg = Head list element
164: * return: 0 ok; -1 error:: can`t save new config
165: */
166: int
167: cfg_CreateConfig(const char *csConfigName, sl_config * __restrict cfg)
168: {
169: FILE *f;
170: int ret;
171:
172: if (!csConfigName || !cfg)
173: return -1;
174:
175: f = fopen(csConfigName, "wt");
176: if (!f) {
177: LOGERR;
178: return -1;
179: }
180:
181: ret ^= ret;
182: ret = cfg_WriteConfig(f, cfg);
183:
184: fclose(f);
185: return ret;
186: }
187:
188: // -----------------------------------------------------------
189:
190: //
191: // Error maintenance functions ...
192: //
193:
194: // cfg_GetErrno() Get error code of last operation
195: inline int
196: cfg_GetErrno()
197: {
198: return cfgErrno;
199: }
200:
201: // cfg_GetError() Get error text of last operation
202: inline const char *
203: cfg_GetError()
204: {
205: return cfgError;
206: }
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