1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: pq.c,v 1.1.2.8 2012/09/19 13:02:58 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, 2012
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:
48:
49: static inline struct tagUser *
50: _selectPasswd(pwd_root_t * __restrict pwd, u_int uid, const char *csName)
51: {
52: struct tagUser fu;
53:
54: if (!pwd)
55: return NULL;
56: else
57: memset(&fu, 0, sizeof fu);
58:
59: if (csName) {
60: io_setlikeVar(&fu.usr_name, string, strlen(csName) + 1, csName);
61: return RB_FIND(tagPWD, pwd, &fu);
62: }
63:
64: return (struct tagUser*) cfg_findPasswdBy(pwd, PWD_CRIT_UID, uid);
65: }
66:
67: /* --------------------------------------------------------------- */
68:
69: /*
70: * cfg_findPasswdBy() - Find user by criteria position in list
71: *
72: * @pwd = Password root
73: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID|PWD_CRIT_GID]
74: * @arg1 = Username | UID | GID
75: * return: NULL not found item or error and !=NULL found item
76: */
77: const struct tagUser *
78: cfg_findPasswdBy(pwd_root_t * __restrict pwd, int criteria, ...)
79: {
80: struct tagUser *u;
81: va_list lst;
82: ait_val_t v;
83:
84: if (!pwd)
85: return NULL;
86: else
87: AIT_INIT_VAL(&v);
88:
89: va_start(lst, criteria);
90: switch (criteria) {
91: case PWD_CRIT_NAME:
92: AIT_SET_STR(&v, va_arg(lst, char*));
93: break;
94: case PWD_CRIT_UID:
95: case PWD_CRIT_GID:
96: AIT_SET_U32(&v, va_arg(lst, u_int));
97: break;
98: default:
99: return NULL;
100: }
101: va_end(lst);
102:
103: SLIST_FOREACH(u, pwd, usr_next)
104: switch (criteria) {
105: case PWD_CRIT_NAME:
106: if (!io_cmpVar(&u->usr_name, &v)) {
107: AIT_FREE_VAL(&v);
108: return u;
109: }
110: break;
111: case PWD_CRIT_UID:
112: if (AIT_GET_LIKE(&u->usr_uid, u_int) == AIT_GET_U32(&v)) {
113: AIT_FREE_VAL(&v);
114: return u;
115: }
116: break;
117: case PWD_CRIT_GID:
118: if (AIT_GET_LIKE(&u->usr_gid, u_int) == AIT_GET_U32(&v)) {
119: AIT_FREE_VAL(&v);
120: return u;
121: }
122: break;
123: }
124:
125: AIT_FREE_VAL(&v);
126: return NULL;
127: }
128:
129: /*
130: * cfg_unsetPasswd() - Unset item from passwords and free resources
131: *
132: * @pwd = Password root
133: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID]
134: * @arg1 = Username | UID
135: * return: 0 item not found, -1 error or 1 removed item
136: */
137: int
138: cfg_unsetPasswd(pwd_root_t * __restrict pwd, int criteria, ...)
139: {
140: struct tagUser *u;
141: va_list lst;
142:
143: if (!pwd)
144: return -1;
145:
146: va_start(lst, criteria);
147: switch (criteria) {
148: case PWD_CRIT_NAME:
149: u = _selectPasswd(pwd, 0, va_arg(lst, char*));
150: break;
151: case PWD_CRIT_UID:
152: u = _selectPasswd(pwd, va_arg(lst, u_int), NULL);
153: break;
154: default:
155: va_end(lst);
156: return -1;
157: }
158: va_end(lst);
159: if (!u)
160: return 0;
161:
162: PWD_LOCK(pwd);
163: RB_REMOVE(tagPWD, pwd, u);
164: SLIST_REMOVE(pwd, u, tagUser, usr_next);
165: PWD_UNLOCK(pwd);
166:
167: AIT_FREE_VAL(&u->usr_name);
168: AIT_FREE_VAL(&u->usr_pass);
169: AIT_FREE_VAL(&u->usr_uid);
170: AIT_FREE_VAL(&u->usr_gid);
171: AIT_FREE_VAL(&u->usr_class);
172: AIT_FREE_VAL(&u->usr_change);
173: AIT_FREE_VAL(&u->usr_expire);
174: AIT_FREE_VAL(&u->usr_realm);
175: AIT_FREE_VAL(&u->usr_home);
176: AIT_FREE_VAL(&u->usr_shell);
177: io_free(u);
178: return 1;
179: }
180:
181: /*
182: * cfg_setPasswd() - Set item in password or adding new item if not exists
183: *
184: * @cfg = Password root
185: * @fields = Meaning continuous field
186: * @csName = Username
187: * @arg1 = Password
188: * @arg2 = UID
189: * @arg3 = GID
190: * @arg4 = Login class
191: * @arg5 = Chage date
192: * @arg6 = Expire date
193: * @arg7 = Realm
194: * @arg8 = Home dir
195: * @arg9 = Shell
196: * return: 0 nothing changed, -1 error, 1 found and updated item or 2 added new item
197: */
198: int
199: cfg_setPasswd(pwd_root_t * __restrict pwd, u_char fields, const char *csName, ...)
200: {
201: struct tagUser *u;
202: register int i;
203: va_list lst;
204:
205: if (!pwd || !csName)
206: return -1;
207:
208: u = _selectPasswd(pwd, 0, csName);
209: if (!u) {
210: /* adding new element */
211: u = io_malloc(sizeof(struct tagUser));
212: if (!u) {
213: cfg_SetErr(io_GetErrno(), "%s", io_GetError());
214: return -1;
215: } else {
216: memset(u, 0, sizeof(struct tagUser));
217: if (fields && fields < PWD_MAX_FIELDS)
218: u->usr_fields = fields;
219: else
220: u->usr_fields = PWD_MAX_FIELDS - 1;
221:
222: PWD_LOCK(pwd);
223: SLIST_INSERT_HEAD(pwd, u, usr_next);
224: PWD_UNLOCK(pwd);
225: }
226:
227: va_start(lst, csName);
228: for (i = 0; i < (u->usr_fields + 1); i++)
229: switch (i) {
230: case 0:
231: AIT_SET_STR(&u->usr_name, va_arg(lst, char*));
232: break;
233: case 1:
234: AIT_SET_STR(&u->usr_pass, va_arg(lst, char*));
235: break;
236: case 2:
237: AIT_SET_U32(&u->usr_uid, va_arg(lst, u_int));
238: break;
239: case 3:
240: AIT_SET_U32(&u->usr_gid, va_arg(lst, u_int));
241: break;
242: case 4:
243: AIT_SET_STR(&u->usr_class, va_arg(lst, char*));
244: break;
245: case 5:
246: AIT_SET_U32(&u->usr_change, va_arg(lst, u_int));
247: break;
248: case 6:
249: AIT_SET_U32(&u->usr_expire, va_arg(lst, u_int));
250: break;
251: case 7:
252: AIT_SET_STR(&u->usr_realm, va_arg(lst, char*));
253: break;
254: case 8:
255: AIT_SET_STR(&u->usr_home, va_arg(lst, char*));
256: break;
257: case 9:
258: AIT_SET_STR(&u->usr_shell, va_arg(lst, char*));
259: break;
260: }
261: va_end(lst);
262:
263: AIT_KEY(&u->usr_name) = crcFletcher16(AIT_GET_LIKE(&u->usr_name, u_short*),
264: io_align(AIT_LEN(&u->usr_name) - 1, 2) / 2);
265:
266: PWD_LOCK(pwd);
267: RB_INSERT(tagPWD, pwd, u);
268: PWD_UNLOCK(pwd);
269: return 2;
270: } else {
271: AIT_FREE_VAL(&u->usr_pass);
272: AIT_FREE_VAL(&u->usr_uid);
273: AIT_FREE_VAL(&u->usr_gid);
274: AIT_FREE_VAL(&u->usr_class);
275: AIT_FREE_VAL(&u->usr_change);
276: AIT_FREE_VAL(&u->usr_expire);
277: AIT_FREE_VAL(&u->usr_realm);
278: AIT_FREE_VAL(&u->usr_home);
279: AIT_FREE_VAL(&u->usr_shell);
280:
281: /* Update element */
282: va_start(lst, csName);
283: for (i = 1; i < (u->usr_fields + 1); i++)
284: switch (i) {
285: case 1:
286: AIT_SET_STR(&u->usr_pass, va_arg(lst, char*));
287: break;
288: case 2:
289: AIT_SET_U32(&u->usr_uid, va_arg(lst, u_int));
290: break;
291: case 3:
292: AIT_SET_U32(&u->usr_gid, va_arg(lst, u_int));
293: break;
294: case 4:
295: AIT_SET_STR(&u->usr_class, va_arg(lst, char*));
296: break;
297: case 5:
298: AIT_SET_U32(&u->usr_change, va_arg(lst, u_int));
299: break;
300: case 6:
301: AIT_SET_U32(&u->usr_expire, va_arg(lst, u_int));
302: break;
303: case 7:
304: AIT_SET_STR(&u->usr_realm, va_arg(lst, char*));
305: break;
306: case 8:
307: AIT_SET_STR(&u->usr_home, va_arg(lst, char*));
308: break;
309: case 9:
310: AIT_SET_STR(&u->usr_shell, va_arg(lst, char*));
311: break;
312: }
313: va_end(lst);
314: return 1;
315: }
316:
317: /* Nothing happens ... found & values is equal! */
318: return 0;
319: }
320:
321: /*
322: * cfg_getPasswd() - Get item from passwords and return structure from it
323: *
324: * @pwd = Password root
325: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID]
326: * @arg1 = Username | UID
327: * return: NULL item not found, !=NULL structure found
328: */
329: inline const struct tagUser *
330: cfg_getPasswd(pwd_root_t * __restrict pwd, int criteria, ...)
331: {
332: struct tagUser *u;
333: va_list lst;
334: char *str;
335:
336: if (!pwd)
337: return NULL;
338:
339: va_start(lst, criteria);
340: switch (criteria) {
341: case PWD_CRIT_NAME:
342: str = va_arg(lst, char*);
343: if (!str)
344: u = NULL;
345: else
346: u = _selectPasswd(pwd, 0, str);
347: break;
348: case PWD_CRIT_UID:
349: u = _selectPasswd(pwd, va_arg(lst, u_int), NULL);
350: break;
351: default:
352: u = NULL;
353: break;
354: }
355: va_end(lst);
356:
357: return u;
358: }
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