Annotation of libaitcfg/src/aitcfg.c, revision 1.16.6.1
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 $
1.16.6.1! misho 6: * $Id: aitcfg.c,v 1.16 2023/01/23 23:27:26 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:
1.16.6.1! misho 15: Copyright 2004 - 2025
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:
48:
49: #pragma GCC visibility push(hidden)
50:
1.5 misho 51: int cfg_Errno;
52: char cfg_Error[STRSIZ];
53:
1.9 misho 54: int
1.8 misho 55: cfg_Write(FILE *f, char *fmt, ...)
56: {
57: int ret = 0;
58: va_list lst;
59:
60: va_start(lst, fmt);
61: ret = vfprintf(f, fmt, lst);
62: va_end(lst);
63:
64: return ret;
65: }
66:
1.9 misho 67: int
1.5 misho 68: cfg_tree_cmp(struct tagCfg *a, struct tagCfg *b)
69: {
70: int ret;
71:
72: assert(a && b);
73:
1.14 misho 74: ret = ((AIT_KEY(&a->cfg_sec) << 15) | AIT_KEY(&a->cfg_attr)) -
75: ((AIT_KEY(&b->cfg_sec) << 15) | AIT_KEY(&b->cfg_attr));
1.5 misho 76:
77: if (ret < 0)
78: return -1;
79: else if (ret > 0)
80: return 1;
81:
82: return ret;
83: }
84:
85: RB_GENERATE(tagRC, tagCfg, cfg_node, cfg_tree_cmp);
1.1 misho 86:
87: #pragma GCC visibility pop
88:
89:
1.5 misho 90: // cfg_GetErrno() Get error code of last operation
1.9 misho 91: int
1.5 misho 92: cfg_GetErrno()
93: {
94: return cfg_Errno;
95: }
96:
97: // cfg_GetError() Get error text of last operation
1.9 misho 98: const char *
1.5 misho 99: cfg_GetError()
100: {
101: return cfg_Error;
102: }
103:
104: // cfg_SetErr() Set error to variables for internal use!!!
1.9 misho 105: void
1.5 misho 106: cfg_SetErr(int eno, char *estr, ...)
107: {
108: va_list lst;
109:
110: cfg_Errno = eno;
111: memset(cfg_Error, 0, sizeof cfg_Error);
112: va_start(lst, estr);
113: vsnprintf(cfg_Error, sizeof cfg_Error, estr, lst);
114: va_end(lst);
115: }
116:
117:
1.1 misho 118: /*
1.5 misho 119: * cfgInitConfig() - Init config root
120: *
1.12 misho 121: * return: NULL error or !=NULL allocated config root
1.5 misho 122: */
1.12 misho 123: cfg_root_t *
124: cfgInitConfig()
1.1 misho 125: {
1.12 misho 126: cfg_root_t *cfg = NULL;
127:
128: cfg = e_malloc(sizeof(cfg_root_t));
129: if (!cfg) {
130: cfg_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
131: return NULL;
132: } else
133: memset(cfg, 0, sizeof(cfg_root_t));
1.1 misho 134:
1.5 misho 135: pthread_mutex_init(&cfg->rc_mtx, NULL);
136:
1.11 misho 137: TAILQ_INIT(cfg);
1.5 misho 138: RB_INIT(cfg);
1.12 misho 139: return cfg;
140: }
141:
142: /*
143: * cfgEndConfig() - Free resources & config root
144: *
145: * @pcfg = Config root
146: * return: none
147: */
148: void
149: cfgEndConfig(cfg_root_t **pcfg)
150: {
151: if (pcfg && *pcfg) {
152: cfgClearConfig(*pcfg);
153: pthread_mutex_destroy(&(*pcfg)->rc_mtx);
154: e_free(*pcfg);
155: *pcfg = NULL;
156: }
1.1 misho 157: }
158:
159: /*
1.16.6.1! misho 160: * cfgInitConfigExt() - Init existed config root
! 161: *
! 162: * @cfg = Config root
! 163: * return: NULL error or !=NULL inited config root
! 164: */
! 165: cfg_root_t *
! 166: cfgInitConfigExt(cfg_root_t * __restrict cfg)
! 167: {
! 168: if (!TAILQ_EMPTY(cfg) || !RB_EMPTY(cfg))
! 169: cfgUnloadConfig(cfg);
! 170:
! 171: memset(cfg, 0, sizeof(cfg_root_t));
! 172:
! 173: pthread_mutex_init(&cfg->rc_mtx, NULL);
! 174:
! 175: TAILQ_INIT(cfg);
! 176: RB_INIT(cfg);
! 177: return cfg;
! 178: }
! 179:
! 180: /*
1.5 misho 181: * cfgLoadConfig() - Load config from file
182: *
183: * @cfgName = Config filename
184: * @cfg = Config root
185: * return: -1 error or 0 ok
186: */
187: int
188: cfgLoadConfig(const char *cfgName, cfg_root_t * __restrict cfg)
1.1 misho 189: {
190: FILE *f;
191: int ret;
192:
1.5 misho 193: if (!cfgName || !cfg) {
194: cfg_SetErr(EINVAL, "Invalid parameter(s)");
1.1 misho 195: return -1;
1.12 misho 196: } else {
1.16.6.1! misho 197: if (!TAILQ_EMPTY(cfg) || !RB_EMPTY(cfg))
! 198: cfgUnloadConfig(cfg);
! 199:
1.15 misho 200: memset(cfg, 0, sizeof(cfg_root_t));
201:
1.12 misho 202: pthread_mutex_init(&cfg->rc_mtx, NULL);
203:
204: TAILQ_INIT(cfg);
205: RB_INIT(cfg);
206: }
1.1 misho 207:
1.5 misho 208: f = fopen(cfgName, "r");
209: if (!f) {
1.1 misho 210: LOGERR;
211: return -1;
212: }
213:
1.5 misho 214: ret = cfgReadConfig(f, cfg);
1.1 misho 215:
216: fclose(f);
217: return ret;
218: }
219:
220: /*
1.7 misho 221: * cfgClearConfig() - Clear config and free resources
1.5 misho 222: *
223: * @cfg = Config root
224: * return: none
225: */
226: void
1.7 misho 227: cfgClearConfig(cfg_root_t * __restrict cfg)
1.1 misho 228: {
1.5 misho 229: struct tagCfg *av;
1.1 misho 230:
1.5 misho 231: if (!cfg)
1.1 misho 232: return;
233:
1.5 misho 234: CFG_RC_LOCK(cfg);
1.11 misho 235: while ((av = TAILQ_FIRST(cfg))) {
236: TAILQ_REMOVE(cfg, av, cfg_next);
1.5 misho 237:
238: AIT_FREE_VAL(&av->cfg_val);
239: AIT_FREE_VAL(&av->cfg_attr);
240: AIT_FREE_VAL(&av->cfg_sec);
1.9 misho 241: e_free(av);
1.1 misho 242: }
1.5 misho 243: cfg->rbh_root = NULL;
244: CFG_RC_UNLOCK(cfg);
1.7 misho 245: }
246:
247: /*
248: * cfgUnloadConfig() - Unload config from memory and destroy resources
249: *
250: * @cfg = Config root
251: * return: none
252: */
253: void
254: cfgUnloadConfig(cfg_root_t * __restrict cfg)
255: {
256: if (!cfg)
257: return;
1.1 misho 258:
1.7 misho 259: cfgClearConfig(cfg);
1.5 misho 260: pthread_mutex_destroy(&cfg->rc_mtx);
1.1 misho 261: }
262:
1.3 misho 263: /*
1.5 misho 264: * cfgCreateConfig() - Create config file from memory
265: *
1.3 misho 266: * @csConfigName = New config filename
1.5 misho 267: * @cfg = Config root
268: * @whitespace = Additional whitespace characters to file
269: * return: -1 error or 0 ok
270: */
271: int
272: cfgCreateConfig(const char *csConfigName, cfg_root_t * __restrict cfg, int whitespace)
1.3 misho 273: {
274: FILE *f;
275: int ret;
276:
277: if (!csConfigName || !cfg)
278: return -1;
279:
1.5 misho 280: f = fopen(csConfigName, "w");
1.3 misho 281: if (!f) {
282: LOGERR;
283: return -1;
284: }
285:
1.16 misho 286: ret = cfgWriteConfigRaw(f, cfg, whitespace);
1.3 misho 287:
288: fclose(f);
289: return ret;
290: }
1.8 misho 291:
292: /*
293: * cfgInitPasswd() - Init password root
294: *
1.12 misho 295: * return: NULL error or !=NULL allocated password root
1.8 misho 296: */
1.12 misho 297: pwd_root_t *
298: cfgInitPasswd()
1.8 misho 299: {
1.12 misho 300: pwd_root_t *pwd = NULL;
301:
302: pwd = e_malloc(sizeof(pwd_root_t));
303: if (!pwd) {
304: cfg_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
305: return NULL;
306: } else
307: memset(pwd, 0, sizeof(pwd_root_t));
1.8 misho 308:
309: pthread_mutex_init(&pwd->pwd_mtx, NULL);
310:
311: SLIST_INIT(pwd);
312: RB_INIT(pwd);
313: return 0;
314: }
315:
316: /*
1.12 misho 317: * cfgEndPasswd() - Free resources & password root
318: *
319: * @ppwd = Password root
320: * return: none
321: */
322: void
323: cfgEndPasswd(pwd_root_t **ppwd)
324: {
325: if (ppwd && *ppwd) {
326: cfgClearPasswd(*ppwd);
327: pthread_mutex_destroy(&(*ppwd)->pwd_mtx);
328: e_free(*ppwd);
329: *ppwd = NULL;
330: }
331: }
332:
333: /*
1.8 misho 334: * cfgLoadPasswd() - Load passwords from file
335: *
336: * @pwdName = Passwords filename
337: * @pwd = Password root
338: * return: -1 error or 0 ok
339: */
340: int
341: cfgLoadPasswd(const char *pwdName, pwd_root_t * __restrict pwd)
342: {
343: FILE *f;
344: int ret;
345:
346: if (!pwdName || !pwd) {
347: cfg_SetErr(EINVAL, "Invalid parameter(s)");
348: return -1;
1.12 misho 349: } else {
1.15 misho 350: memset(pwd, 0, sizeof(pwd_root_t));
351:
1.12 misho 352: pthread_mutex_init(&pwd->pwd_mtx, NULL);
353:
354: SLIST_INIT(pwd);
355: RB_INIT(pwd);
356: }
1.8 misho 357:
358: f = fopen(pwdName, "r");
359: if (!f) {
360: LOGERR;
361: return -1;
362: }
363:
364: ret = cfgReadPasswd(f, pwd);
365:
366: fclose(f);
367: return ret;
368: }
369:
370: /*
371: * cfgClearPasswd() - Clear passwords and free resources
372: *
373: * @cfg = Password root
374: * return: none
375: */
376: void
377: cfgClearPasswd(pwd_root_t * __restrict pwd)
378: {
379: struct tagUser *p;
380:
381: if (!pwd)
382: return;
383:
384: PWD_LOCK(pwd);
385: while ((p = SLIST_FIRST(pwd))) {
386: SLIST_REMOVE_HEAD(pwd, usr_next);
387:
388: AIT_FREE_VAL(&p->usr_name);
389: AIT_FREE_VAL(&p->usr_pass);
390: AIT_FREE_VAL(&p->usr_uid);
391: AIT_FREE_VAL(&p->usr_gid);
392: AIT_FREE_VAL(&p->usr_class);
393: AIT_FREE_VAL(&p->usr_change);
394: AIT_FREE_VAL(&p->usr_expire);
395: AIT_FREE_VAL(&p->usr_realm);
396: AIT_FREE_VAL(&p->usr_home);
397: AIT_FREE_VAL(&p->usr_shell);
1.9 misho 398: e_free(p);
1.8 misho 399: }
400: pwd->rbh_root = NULL;
401: PWD_UNLOCK(pwd);
402: }
403:
404: /*
405: * cfgUnloadPasswd() - Unload passwords from memory and destroy resources
406: *
407: * @pwd = Password root
408: * return: none
409: */
410: void
411: cfgUnloadPasswd(pwd_root_t * __restrict pwd)
412: {
413: if (!pwd)
414: return;
415:
416: cfgClearPasswd(pwd);
417: pthread_mutex_destroy(&pwd->pwd_mtx);
418: }
419:
420: /*
421: * cfgCreatePasswd() - Create password file from memory
422: *
423: * @pwdName = New password filename
424: * @pwd = Password root
425: * return: -1 error or 0 ok
426: */
427: int
428: cfgCreatePasswd(const char *pwdName, pwd_root_t * __restrict pwd)
429: {
430: FILE *f;
431: int ret;
432:
433: if (!pwdName || !pwd)
434: return -1;
435:
436: f = fopen(pwdName, "w");
437: if (!f) {
438: LOGERR;
439: return -1;
440: }
441:
442: ret = cfgWritePasswd(f, pwd);
443:
444: fclose(f);
445: return ret;
446: }
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