Annotation of libaitcfg/src/aitcfg.c, revision 1.7.6.2
1.2 misho 1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
1.7.6.2 ! misho 6: * $Id: aitcfg.c,v 1.7.6.1 2012/09/18 08:44:19 misho Exp $
1.2 misho 7: *
1.4 misho 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:
1.5 misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
1.4 misho 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: */
1.1 misho 46: #include "global.h"
47: #include "aitcfg.h"
1.7.6.1 misho 48: #include "aitpwd.h"
1.1 misho 49:
50:
51: #pragma GCC visibility push(hidden)
52:
1.5 misho 53: int cfg_Errno;
54: char cfg_Error[STRSIZ];
55:
56: inline int
1.7.6.2 ! misho 57: cfg_Write(FILE *f, char *fmt, ...)
! 58: {
! 59: int ret = 0;
! 60: va_list lst;
! 61:
! 62: va_start(lst, fmt);
! 63: ret = vfprintf(f, fmt, lst);
! 64: va_end(lst);
! 65:
! 66: return ret;
! 67: }
! 68:
! 69: inline int
1.5 misho 70: cfg_tree_cmp(struct tagCfg *a, struct tagCfg *b)
71: {
72: int ret;
73:
74: assert(a && b);
75:
76: ret = ((AIT_KEY(&a->cfg_sec) << 16) | AIT_KEY(&a->cfg_attr)) -
77: ((AIT_KEY(&b->cfg_sec) << 16) | AIT_KEY(&b->cfg_attr));
78:
79: if (ret < 0)
80: return -1;
81: else if (ret > 0)
82: return 1;
83:
84: return ret;
85: }
86:
87: RB_GENERATE(tagRC, tagCfg, cfg_node, cfg_tree_cmp);
1.1 misho 88:
89: #pragma GCC visibility pop
90:
91:
1.5 misho 92: // cfg_GetErrno() Get error code of last operation
93: inline int
94: cfg_GetErrno()
95: {
96: return cfg_Errno;
97: }
98:
99: // cfg_GetError() Get error text of last operation
100: inline const char *
101: cfg_GetError()
102: {
103: return cfg_Error;
104: }
105:
106: // cfg_SetErr() Set error to variables for internal use!!!
107: inline void
108: cfg_SetErr(int eno, char *estr, ...)
109: {
110: va_list lst;
111:
112: cfg_Errno = eno;
113: memset(cfg_Error, 0, sizeof cfg_Error);
114: va_start(lst, estr);
115: vsnprintf(cfg_Error, sizeof cfg_Error, estr, lst);
116: va_end(lst);
117: }
118:
119:
1.1 misho 120: /*
1.5 misho 121: * cfgInitConfig() - Init config root
122: *
123: * @cfg = Config root
124: * return: -1 error or 0 ok
125: */
126: int
127: cfgInitConfig(cfg_root_t * __restrict cfg)
1.1 misho 128: {
129: if (!cfg)
130: return -1;
131:
1.5 misho 132: pthread_mutex_init(&cfg->rc_mtx, NULL);
133:
134: SLIST_INIT(cfg);
135: RB_INIT(cfg);
1.2 misho 136: return 0;
1.1 misho 137: }
138:
139: /*
1.5 misho 140: * cfgLoadConfig() - Load config from file
141: *
142: * @cfgName = Config filename
143: * @cfg = Config root
144: * return: -1 error or 0 ok
145: */
146: int
147: cfgLoadConfig(const char *cfgName, cfg_root_t * __restrict cfg)
1.1 misho 148: {
149: FILE *f;
150: int ret;
151:
1.5 misho 152: if (!cfgName || !cfg) {
153: cfg_SetErr(EINVAL, "Invalid parameter(s)");
1.1 misho 154: return -1;
1.5 misho 155: } else
156: cfgInitConfig(cfg);
1.1 misho 157:
1.5 misho 158: f = fopen(cfgName, "r");
159: if (!f) {
1.1 misho 160: LOGERR;
161: return -1;
162: }
163:
1.5 misho 164: ret = cfgReadConfig(f, cfg);
1.1 misho 165:
166: fclose(f);
167: return ret;
168: }
169:
170: /*
1.7 misho 171: * cfgClearConfig() - Clear config and free resources
1.5 misho 172: *
173: * @cfg = Config root
174: * return: none
175: */
176: void
1.7 misho 177: cfgClearConfig(cfg_root_t * __restrict cfg)
1.1 misho 178: {
1.5 misho 179: struct tagCfg *av;
1.1 misho 180:
1.5 misho 181: if (!cfg)
1.1 misho 182: return;
183:
1.5 misho 184: CFG_RC_LOCK(cfg);
185: while ((av = SLIST_FIRST(cfg))) {
186: SLIST_REMOVE_HEAD(cfg, cfg_next);
187:
188: AIT_FREE_VAL(&av->cfg_val);
189: AIT_FREE_VAL(&av->cfg_attr);
190: AIT_FREE_VAL(&av->cfg_sec);
1.6 misho 191: io_free(av);
1.1 misho 192: }
1.5 misho 193: cfg->rbh_root = NULL;
194: CFG_RC_UNLOCK(cfg);
1.7 misho 195: }
196:
197: /*
198: * cfgUnloadConfig() - Unload config from memory and destroy resources
199: *
200: * @cfg = Config root
201: * return: none
202: */
203: void
204: cfgUnloadConfig(cfg_root_t * __restrict cfg)
205: {
206: if (!cfg)
207: return;
1.1 misho 208:
1.7 misho 209: cfgClearConfig(cfg);
1.5 misho 210: pthread_mutex_destroy(&cfg->rc_mtx);
1.1 misho 211: }
212:
1.3 misho 213: /*
1.5 misho 214: * cfgCreateConfig() - Create config file from memory
215: *
1.3 misho 216: * @csConfigName = New config filename
1.5 misho 217: * @cfg = Config root
218: * @whitespace = Additional whitespace characters to file
219: * return: -1 error or 0 ok
220: */
221: int
222: cfgCreateConfig(const char *csConfigName, cfg_root_t * __restrict cfg, int whitespace)
1.3 misho 223: {
224: FILE *f;
225: int ret;
226:
227: if (!csConfigName || !cfg)
228: return -1;
229:
1.5 misho 230: f = fopen(csConfigName, "w");
1.3 misho 231: if (!f) {
232: LOGERR;
233: return -1;
234: }
235:
1.5 misho 236: ret = cfgWriteConfig(f, cfg, whitespace);
1.3 misho 237:
238: fclose(f);
239: return ret;
240: }
1.7.6.1 misho 241:
242: /*
243: * cfgInitPasswd() - Init password root
244: *
245: * @pwd = Password root
246: * return: -1 error or 0 ok
247: */
248: int
249: cfgInitPasswd(pwd_root_t * __restrict pwd)
250: {
251: if (!pwd)
252: return -1;
253:
254: pthread_mutex_init(&pwd->pwd_mtx, NULL);
255:
256: SLIST_INIT(pwd);
257: RB_INIT(pwd);
258: return 0;
259: }
260:
261: /*
262: * cfgLoadPasswd() - Load passwords from file
263: *
264: * @pwdName = Passwords filename
265: * @pwd = Password root
266: * return: -1 error or 0 ok
267: */
268: int
269: cfgLoadPasswd(const char *pwdName, pwd_root_t * __restrict pwd)
270: {
271: FILE *f;
272: int ret;
273:
274: if (!pwdName || !pwd) {
275: cfg_SetErr(EINVAL, "Invalid parameter(s)");
276: return -1;
277: } else
278: cfgInitPasswd(pwd);
279:
280: f = fopen(pwdName, "r");
281: if (!f) {
282: LOGERR;
283: return -1;
284: }
285:
286: ret = cfgReadPasswd(f, pwd);
287:
288: fclose(f);
289: return ret;
290: }
291:
292: /*
293: * cfgClearPasswd() - Clear passwords and free resources
294: *
295: * @cfg = Password root
296: * return: none
297: */
298: void
299: cfgClearPasswd(pwd_root_t * __restrict pwd)
300: {
301: struct tagUser *p;
302:
303: if (!pwd)
304: return;
305:
306: PWD_LOCK(pwd);
307: while ((p = SLIST_FIRST(pwd))) {
308: SLIST_REMOVE_HEAD(pwd, usr_next);
309:
310: AIT_FREE_VAL(&p->usr_name);
311: AIT_FREE_VAL(&p->usr_pass);
312: AIT_FREE_VAL(&p->usr_uid);
313: AIT_FREE_VAL(&p->usr_gid);
314: AIT_FREE_VAL(&p->usr_class);
315: AIT_FREE_VAL(&p->usr_change);
316: AIT_FREE_VAL(&p->usr_expire);
317: AIT_FREE_VAL(&p->usr_realm);
318: AIT_FREE_VAL(&p->usr_home);
319: AIT_FREE_VAL(&p->usr_shell);
320: io_free(p);
321: }
322: pwd->rbh_root = NULL;
323: PWD_UNLOCK(pwd);
324: }
325:
326: /*
327: * cfgUnloadPasswd() - Unload passwords from memory and destroy resources
328: *
329: * @pwd = Password root
330: * return: none
331: */
332: void
333: cfgUnloadPasswd(pwd_root_t * __restrict pwd)
334: {
335: if (!pwd)
336: return;
337:
338: cfgClearPasswd(pwd);
339: pthread_mutex_destroy(&pwd->pwd_mtx);
340: }
341:
342: /*
343: * cfgCreatePasswd() - Create password file from memory
344: *
345: * @pwdName = New password filename
346: * @pwd = Password root
347: * return: -1 error or 0 ok
348: */
349: int
350: cfgCreatePasswd(const char *pwdName, pwd_root_t * __restrict pwd)
351: {
352: FILE *f;
353: int ret;
354:
355: if (!pwdName || !pwd)
356: return -1;
357:
358: f = fopen(pwdName, "w");
359: if (!f) {
360: LOGERR;
361: return -1;
362: }
363:
364: ret = cfgWritePasswd(f, pwd);
365:
366: fclose(f);
367: return ret;
368: }
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