Annotation of libaitcfg/src/aitcfg.c, revision 1.17
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 ! misho 6: * $Id: aitcfg.c,v 1.16.6.4 2025/08/19 11:40:13 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 ! 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: /*
1.17 ! 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:
1.5 misho 206: ret = cfgReadConfig(f, cfg);
1.1 misho 207:
208: fclose(f);
209: return ret;
210: }
211:
212: /*
1.7 misho 213: * cfgClearConfig() - Clear config and free resources
1.5 misho 214: *
215: * @cfg = Config root
216: * return: none
217: */
218: void
1.7 misho 219: cfgClearConfig(cfg_root_t * __restrict cfg)
1.1 misho 220: {
1.5 misho 221: struct tagCfg *av;
1.1 misho 222:
1.5 misho 223: if (!cfg)
1.1 misho 224: return;
225:
1.5 misho 226: CFG_RC_LOCK(cfg);
1.11 misho 227: while ((av = TAILQ_FIRST(cfg))) {
228: TAILQ_REMOVE(cfg, av, cfg_next);
1.5 misho 229:
230: AIT_FREE_VAL(&av->cfg_val);
231: AIT_FREE_VAL(&av->cfg_attr);
232: AIT_FREE_VAL(&av->cfg_sec);
1.9 misho 233: e_free(av);
1.1 misho 234: }
1.5 misho 235: cfg->rbh_root = NULL;
236: CFG_RC_UNLOCK(cfg);
1.7 misho 237: }
238:
239: /*
240: * cfgUnloadConfig() - Unload config from memory and destroy resources
241: *
242: * @cfg = Config root
243: * return: none
244: */
245: void
246: cfgUnloadConfig(cfg_root_t * __restrict cfg)
247: {
248: if (!cfg)
249: return;
1.1 misho 250:
1.7 misho 251: cfgClearConfig(cfg);
1.5 misho 252: pthread_mutex_destroy(&cfg->rc_mtx);
1.17 ! misho 253: memset(&cfg->rc_mtx, 0, sizeof cfg->rc_mtx);
1.1 misho 254: }
255:
1.3 misho 256: /*
1.5 misho 257: * cfgCreateConfig() - Create config file from memory
258: *
1.3 misho 259: * @csConfigName = New config filename
1.5 misho 260: * @cfg = Config root
261: * @whitespace = Additional whitespace characters to file
262: * return: -1 error or 0 ok
263: */
264: int
265: cfgCreateConfig(const char *csConfigName, cfg_root_t * __restrict cfg, int whitespace)
1.3 misho 266: {
267: FILE *f;
268: int ret;
269:
270: if (!csConfigName || !cfg)
271: return -1;
272:
1.5 misho 273: f = fopen(csConfigName, "w");
1.3 misho 274: if (!f) {
275: LOGERR;
276: return -1;
277: }
278:
1.16 misho 279: ret = cfgWriteConfigRaw(f, cfg, whitespace);
1.3 misho 280:
281: fclose(f);
282: return ret;
283: }
1.8 misho 284:
285: /*
286: * cfgInitPasswd() - Init password root
287: *
1.12 misho 288: * return: NULL error or !=NULL allocated password root
1.8 misho 289: */
1.12 misho 290: pwd_root_t *
291: cfgInitPasswd()
1.8 misho 292: {
1.12 misho 293: pwd_root_t *pwd = NULL;
294:
295: pwd = e_malloc(sizeof(pwd_root_t));
296: if (!pwd) {
297: cfg_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
298: return NULL;
299: } else
300: memset(pwd, 0, sizeof(pwd_root_t));
1.8 misho 301:
302: pthread_mutex_init(&pwd->pwd_mtx, NULL);
303:
304: SLIST_INIT(pwd);
305: RB_INIT(pwd);
306: return 0;
307: }
308:
309: /*
1.12 misho 310: * cfgEndPasswd() - Free resources & password root
311: *
312: * @ppwd = Password root
313: * return: none
314: */
315: void
316: cfgEndPasswd(pwd_root_t **ppwd)
317: {
318: if (ppwd && *ppwd) {
319: cfgClearPasswd(*ppwd);
320: pthread_mutex_destroy(&(*ppwd)->pwd_mtx);
321: e_free(*ppwd);
322: *ppwd = NULL;
323: }
324: }
325:
326: /*
1.8 misho 327: * cfgLoadPasswd() - Load passwords from file
328: *
329: * @pwdName = Passwords filename
330: * @pwd = Password root
331: * return: -1 error or 0 ok
332: */
333: int
334: cfgLoadPasswd(const char *pwdName, pwd_root_t * __restrict pwd)
335: {
336: FILE *f;
337: int ret;
338:
339: if (!pwdName || !pwd) {
340: cfg_SetErr(EINVAL, "Invalid parameter(s)");
341: return -1;
1.12 misho 342: } else {
1.15 misho 343: memset(pwd, 0, sizeof(pwd_root_t));
344:
1.12 misho 345: pthread_mutex_init(&pwd->pwd_mtx, NULL);
346:
347: SLIST_INIT(pwd);
348: RB_INIT(pwd);
349: }
1.8 misho 350:
351: f = fopen(pwdName, "r");
352: if (!f) {
353: LOGERR;
354: return -1;
355: }
356:
357: ret = cfgReadPasswd(f, pwd);
358:
359: fclose(f);
360: return ret;
361: }
362:
363: /*
364: * cfgClearPasswd() - Clear passwords and free resources
365: *
366: * @cfg = Password root
367: * return: none
368: */
369: void
370: cfgClearPasswd(pwd_root_t * __restrict pwd)
371: {
372: struct tagUser *p;
373:
374: if (!pwd)
375: return;
376:
377: PWD_LOCK(pwd);
378: while ((p = SLIST_FIRST(pwd))) {
379: SLIST_REMOVE_HEAD(pwd, usr_next);
380:
381: AIT_FREE_VAL(&p->usr_name);
382: AIT_FREE_VAL(&p->usr_pass);
383: AIT_FREE_VAL(&p->usr_uid);
384: AIT_FREE_VAL(&p->usr_gid);
385: AIT_FREE_VAL(&p->usr_class);
386: AIT_FREE_VAL(&p->usr_change);
387: AIT_FREE_VAL(&p->usr_expire);
388: AIT_FREE_VAL(&p->usr_realm);
389: AIT_FREE_VAL(&p->usr_home);
390: AIT_FREE_VAL(&p->usr_shell);
1.9 misho 391: e_free(p);
1.8 misho 392: }
393: pwd->rbh_root = NULL;
394: PWD_UNLOCK(pwd);
395: }
396:
397: /*
398: * cfgUnloadPasswd() - Unload passwords from memory and destroy resources
399: *
400: * @pwd = Password root
401: * return: none
402: */
403: void
404: cfgUnloadPasswd(pwd_root_t * __restrict pwd)
405: {
406: if (!pwd)
407: return;
408:
409: cfgClearPasswd(pwd);
410: pthread_mutex_destroy(&pwd->pwd_mtx);
411: }
412:
413: /*
414: * cfgCreatePasswd() - Create password file from memory
415: *
416: * @pwdName = New password filename
417: * @pwd = Password root
418: * return: -1 error or 0 ok
419: */
420: int
421: cfgCreatePasswd(const char *pwdName, pwd_root_t * __restrict pwd)
422: {
423: FILE *f;
424: int ret;
425:
426: if (!pwdName || !pwd)
427: return -1;
428:
429: f = fopen(pwdName, "w");
430: if (!f) {
431: LOGERR;
432: return -1;
433: }
434:
435: ret = cfgWritePasswd(f, pwd);
436:
437: fclose(f);
438: return ret;
439: }
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