Annotation of libaitcfg/src/aitcfg.c, revision 1.17.4.1
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 $
1.17.4.1! misho 6: * $Id: aitcfg.c,v 1.17 2025/08/19 11:43:53 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:
1.17.4.1! misho 15: Copyright 2004 - 2026
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: /*
1.17 misho 160: * cfgInitConfigExt() - Init existed config root
161: *
162: * @cfg = Config root
163: * return: -1 error or 0 inited config root
164: */
165: int
166: cfgInitConfigExt(cfg_root_t * __restrict cfg)
167: {
168: if (!cfg) {
169: cfg_SetErr(EINVAL, "Invalid parameter");
170: return -1;
171: }
172:
173: memset(cfg, 0, sizeof(cfg_root_t));
174:
175: pthread_mutex_init(&cfg->rc_mtx, NULL);
176:
177: TAILQ_INIT(cfg);
178: RB_INIT(cfg);
179: return 0;
180: }
181:
182: /*
1.5 misho 183: * cfgLoadConfig() - Load config from file
184: *
185: * @cfgName = Config filename
186: * @cfg = Config root
187: * return: -1 error or 0 ok
188: */
189: int
190: cfgLoadConfig(const char *cfgName, cfg_root_t * __restrict cfg)
1.1 misho 191: {
192: FILE *f;
193: int ret;
194:
1.17 misho 195: if (!cfgName || cfgInitConfigExt(cfg)) {
1.5 misho 196: cfg_SetErr(EINVAL, "Invalid parameter(s)");
1.1 misho 197: return -1;
1.12 misho 198: }
1.1 misho 199:
1.5 misho 200: f = fopen(cfgName, "r");
201: if (!f) {
1.1 misho 202: LOGERR;
203: return -1;
204: }
205:
1.17.4.1! misho 206: ret = cfg_ReadConfig(f, cfg, 1);
1.1 misho 207:
208: fclose(f);
209: return ret;
210: }
211:
212: /*
1.17.4.1! misho 213: * cfgLoadConfigExt() - Load config from file with recursion level of includes
! 214: *
! 215: * @cfgName = Config filename
! 216: * @cfg = Config root
! 217: * @lvl = Level of include recursion
! 218: * return: -1 error or 0 ok
! 219: */
! 220: int
! 221: cfgLoadConfigExt(const char *cfgName, cfg_root_t * __restrict cfg, int lvl)
! 222: {
! 223: FILE *f;
! 224: int ret;
! 225:
! 226: if (!cfgName || cfgInitConfigExt(cfg)) {
! 227: cfg_SetErr(EINVAL, "Invalid parameter(s)");
! 228: return -1;
! 229: }
! 230:
! 231: f = fopen(cfgName, "r");
! 232: if (!f) {
! 233: LOGERR;
! 234: return -1;
! 235: }
! 236:
! 237: ret = cfg_ReadConfig(f, cfg, lvl);
! 238:
! 239: fclose(f);
! 240: return ret;
! 241: }
! 242: /*
1.7 misho 243: * cfgClearConfig() - Clear config and free resources
1.5 misho 244: *
245: * @cfg = Config root
246: * return: none
247: */
248: void
1.7 misho 249: cfgClearConfig(cfg_root_t * __restrict cfg)
1.1 misho 250: {
1.5 misho 251: struct tagCfg *av;
1.1 misho 252:
1.5 misho 253: if (!cfg)
1.1 misho 254: return;
255:
1.5 misho 256: CFG_RC_LOCK(cfg);
1.11 misho 257: while ((av = TAILQ_FIRST(cfg))) {
258: TAILQ_REMOVE(cfg, av, cfg_next);
1.5 misho 259:
260: AIT_FREE_VAL(&av->cfg_val);
261: AIT_FREE_VAL(&av->cfg_attr);
262: AIT_FREE_VAL(&av->cfg_sec);
1.9 misho 263: e_free(av);
1.1 misho 264: }
1.5 misho 265: cfg->rbh_root = NULL;
266: CFG_RC_UNLOCK(cfg);
1.7 misho 267: }
268:
269: /*
270: * cfgUnloadConfig() - Unload config from memory and destroy resources
271: *
272: * @cfg = Config root
273: * return: none
274: */
275: void
276: cfgUnloadConfig(cfg_root_t * __restrict cfg)
277: {
278: if (!cfg)
279: return;
1.1 misho 280:
1.7 misho 281: cfgClearConfig(cfg);
1.5 misho 282: pthread_mutex_destroy(&cfg->rc_mtx);
1.17 misho 283: memset(&cfg->rc_mtx, 0, sizeof cfg->rc_mtx);
1.1 misho 284: }
285:
1.3 misho 286: /*
1.5 misho 287: * cfgCreateConfig() - Create config file from memory
288: *
1.3 misho 289: * @csConfigName = New config filename
1.5 misho 290: * @cfg = Config root
291: * @whitespace = Additional whitespace characters to file
292: * return: -1 error or 0 ok
293: */
294: int
295: cfgCreateConfig(const char *csConfigName, cfg_root_t * __restrict cfg, int whitespace)
1.3 misho 296: {
297: FILE *f;
298: int ret;
299:
300: if (!csConfigName || !cfg)
301: return -1;
302:
1.5 misho 303: f = fopen(csConfigName, "w");
1.3 misho 304: if (!f) {
305: LOGERR;
306: return -1;
307: }
308:
1.16 misho 309: ret = cfgWriteConfigRaw(f, cfg, whitespace);
1.3 misho 310:
311: fclose(f);
312: return ret;
313: }
1.8 misho 314:
315: /*
316: * cfgInitPasswd() - Init password root
317: *
1.12 misho 318: * return: NULL error or !=NULL allocated password root
1.8 misho 319: */
1.12 misho 320: pwd_root_t *
321: cfgInitPasswd()
1.8 misho 322: {
1.12 misho 323: pwd_root_t *pwd = NULL;
324:
325: pwd = e_malloc(sizeof(pwd_root_t));
326: if (!pwd) {
327: cfg_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
328: return NULL;
329: } else
330: memset(pwd, 0, sizeof(pwd_root_t));
1.8 misho 331:
332: pthread_mutex_init(&pwd->pwd_mtx, NULL);
333:
334: SLIST_INIT(pwd);
335: RB_INIT(pwd);
336: return 0;
337: }
338:
339: /*
1.12 misho 340: * cfgEndPasswd() - Free resources & password root
341: *
342: * @ppwd = Password root
343: * return: none
344: */
345: void
346: cfgEndPasswd(pwd_root_t **ppwd)
347: {
348: if (ppwd && *ppwd) {
349: cfgClearPasswd(*ppwd);
350: pthread_mutex_destroy(&(*ppwd)->pwd_mtx);
351: e_free(*ppwd);
352: *ppwd = NULL;
353: }
354: }
355:
356: /*
1.8 misho 357: * cfgLoadPasswd() - Load passwords from file
358: *
359: * @pwdName = Passwords filename
360: * @pwd = Password root
361: * return: -1 error or 0 ok
362: */
363: int
364: cfgLoadPasswd(const char *pwdName, pwd_root_t * __restrict pwd)
365: {
366: FILE *f;
367: int ret;
368:
369: if (!pwdName || !pwd) {
370: cfg_SetErr(EINVAL, "Invalid parameter(s)");
371: return -1;
1.12 misho 372: } else {
1.15 misho 373: memset(pwd, 0, sizeof(pwd_root_t));
374:
1.12 misho 375: pthread_mutex_init(&pwd->pwd_mtx, NULL);
376:
377: SLIST_INIT(pwd);
378: RB_INIT(pwd);
379: }
1.8 misho 380:
381: f = fopen(pwdName, "r");
382: if (!f) {
383: LOGERR;
384: return -1;
385: }
386:
387: ret = cfgReadPasswd(f, pwd);
388:
389: fclose(f);
390: return ret;
391: }
392:
393: /*
394: * cfgClearPasswd() - Clear passwords and free resources
395: *
396: * @cfg = Password root
397: * return: none
398: */
399: void
400: cfgClearPasswd(pwd_root_t * __restrict pwd)
401: {
402: struct tagUser *p;
403:
404: if (!pwd)
405: return;
406:
407: PWD_LOCK(pwd);
408: while ((p = SLIST_FIRST(pwd))) {
409: SLIST_REMOVE_HEAD(pwd, usr_next);
410:
411: AIT_FREE_VAL(&p->usr_name);
412: AIT_FREE_VAL(&p->usr_pass);
413: AIT_FREE_VAL(&p->usr_uid);
414: AIT_FREE_VAL(&p->usr_gid);
415: AIT_FREE_VAL(&p->usr_class);
416: AIT_FREE_VAL(&p->usr_change);
417: AIT_FREE_VAL(&p->usr_expire);
418: AIT_FREE_VAL(&p->usr_realm);
419: AIT_FREE_VAL(&p->usr_home);
420: AIT_FREE_VAL(&p->usr_shell);
1.9 misho 421: e_free(p);
1.8 misho 422: }
423: pwd->rbh_root = NULL;
424: PWD_UNLOCK(pwd);
425: }
426:
427: /*
428: * cfgUnloadPasswd() - Unload passwords from memory and destroy resources
429: *
430: * @pwd = Password root
431: * return: none
432: */
433: void
434: cfgUnloadPasswd(pwd_root_t * __restrict pwd)
435: {
436: if (!pwd)
437: return;
438:
439: cfgClearPasswd(pwd);
440: pthread_mutex_destroy(&pwd->pwd_mtx);
441: }
442:
443: /*
444: * cfgCreatePasswd() - Create password file from memory
445: *
446: * @pwdName = New password filename
447: * @pwd = Password root
448: * return: -1 error or 0 ok
449: */
450: int
451: cfgCreatePasswd(const char *pwdName, pwd_root_t * __restrict pwd)
452: {
453: FILE *f;
454: int ret;
455:
456: if (!pwdName || !pwd)
457: return -1;
458:
459: f = fopen(pwdName, "w");
460: if (!f) {
461: LOGERR;
462: return -1;
463: }
464:
465: ret = cfgWritePasswd(f, pwd);
466:
467: fclose(f);
468: return ret;
469: }
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