Annotation of libaitcfg/src/pq.c, revision 1.1.2.2
1.1.2.1 misho 1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
1.1.2.2 ! misho 6: * $Id: pq.c,v 1.1.2.1 2012/09/18 15:50:59 misho Exp $
1.1.2.1 misho 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 *
1.1.2.2 ! misho 50: _selectPasswd(pwd_root_t * __restrict pwd, u_int uid, const char *csName)
1.1.2.1 misho 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 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: 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:
87: va_start(lst, criteria);
88: switch (criteria) {
89: case PWD_CRIT_NAME:
90: AIT_SET_STR(&v, va_arg(lst, char*));
91: break;
92: case PWD_CRIT_UID:
93: case PWD_CRIT_GID:
94: AIT_SET_U32(&v, va_arg(lst, u_int));
95: break;
96: default:
97: return NULL;
98: }
99: va_end(lst);
100:
101: SLIST_FOREACH(u, pwd, usr_next)
102: switch (criteria) {
103: case PWD_CRIT_NAME:
104: if (!io_cmpVar(&u->usr_name, &v)) {
105: AIT_FREE_VAL(&v);
106: return u;
107: }
108: break;
109: case PWD_CRIT_UID:
110: if (AIT_GET_U32(&u->usr_uid) == AIT_GET_U32(&v)) {
111: AIT_FREE_VAL(&v);
112: return u;
113: }
114: break;
115: case PWD_CRIT_GID:
116: if (AIT_GET_U32(&u->usr_gid) == AIT_GET_U32(&v)) {
117: AIT_FREE_VAL(&v);
118: return u;
119: }
120: break;
121: }
122:
123: AIT_FREE_VAL(&v);
124: return NULL;
125: }
126:
127: /*
128: * cfg_unsetPasswd() - Unset item from passwords and free resources
129: *
130: * @pwd = Password root
131: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID]
132: * @arg1 = Username | UID
133: * return: 0 item not found, -1 error or 1 removed item
134: */
135: int
136: cfg_unsetPasswd(pwd_root_t * __restrict pwd, int criteria, ...)
137: {
138: struct tagUser *u;
139: va_list lst;
140:
141: if (!pwd)
142: return -1;
143:
144: va_start(lst, criteria);
145: switch (criteria) {
146: case PWD_CRIT_NAME:
1.1.2.2 ! misho 147: u = _selectPasswd(pwd, 0, va_arg(lst, char*));
1.1.2.1 misho 148: break;
149: case PWD_CRIT_UID:
1.1.2.2 ! misho 150: u = _selectPasswd(pwd, va_arg(lst, u_int), NULL);
1.1.2.1 misho 151: break;
152: default:
153: va_end(lst);
154: return -1;
155: }
156: va_end(lst);
157: if (!u)
158: return 0;
159:
160: PWD_LOCK(pwd);
161: RB_REMOVE(tagPWD, pwd, u);
162: SLIST_REMOVE(pwd, u, tagUser, usr_next);
163: PWD_UNLOCK(pwd);
164:
165: AIT_FREE_VAL(&u->usr_name);
166: AIT_FREE_VAL(&u->usr_pass);
167: AIT_FREE_VAL(&u->usr_uid);
168: AIT_FREE_VAL(&u->usr_gid);
169: AIT_FREE_VAL(&u->usr_class);
170: AIT_FREE_VAL(&u->usr_change);
171: AIT_FREE_VAL(&u->usr_expire);
172: AIT_FREE_VAL(&u->usr_realm);
173: AIT_FREE_VAL(&u->usr_home);
174: AIT_FREE_VAL(&u->usr_shell);
175: io_free(u);
176: return 1;
177: }
178:
179: /*
1.1.2.2 ! misho 180: * cfg_setPasswd() - Set item in password or adding new item if not exists
1.1.2.1 misho 181: *
1.1.2.2 ! misho 182: * @cfg = Password root
! 183: * @csName = Username
! 184: * @csPass = Password
! 185: * @uid = UID
! 186: * @gid = GID
! 187: * @Class = Login class
! 188: * @change = Chage date
! 189: * @expire = Expire date
! 190: * @csRealm = Realm
! 191: * @csHome = Home dir
! 192: * @csShell = Shell
1.1.2.1 misho 193: * return: 0 nothing changed, -1 error, 1 found and updated item or 2 added new item
194: */
195: int
1.1.2.2 ! misho 196: cfg_setPasswd(pwd_root_t * __restrict pwd, const char *csName, const char *csPass,
! 197: u_int uid, u_int gid, const char *csClass, u_int change, u_int expire,
! 198: const char *csRealm, const char *csHome, const char *csShell)
1.1.2.1 misho 199: {
1.1.2.2 ! misho 200: struct tagUser *u;
1.1.2.1 misho 201:
1.1.2.2 ! misho 202: if (!pwd || !csName)
1.1.2.1 misho 203: return -1;
204:
1.1.2.2 ! misho 205: u = _selectPasswd(pwd, 0, csName);
! 206: if (!u) {
1.1.2.1 misho 207: /* adding new element */
1.1.2.2 ! misho 208: u = io_malloc(sizeof(struct tagUser));
! 209: if (!u) {
! 210: cfg_SetErr(io_GetErrno(), "%s", io_GetError());
1.1.2.1 misho 211: return -1;
212: } else {
1.1.2.2 ! misho 213: memset(u, 0, sizeof(struct tagUser));
1.1.2.1 misho 214:
1.1.2.2 ! misho 215: PWD_LOCK(pwd);
! 216: SLIST_INSERT_HEAD(pwd, u, usr_next);
! 217: PWD_UNLOCK(pwd);
1.1.2.1 misho 218: }
219:
1.1.2.2 ! misho 220: AIT_SET_STR(&u->usr_name, csName);
! 221: AIT_SET_STR(&u->usr_pass, csPass);
! 222: AIT_SET_U32(&u->usr_uid, uid);
! 223: AIT_SET_U32(&u->usr_gid, gid);
! 224: AIT_SET_STR(&u->usr_class, csClass);
! 225: AIT_SET_U32(&u->usr_change, change);
! 226: AIT_SET_U32(&u->usr_expire, expire);
! 227: AIT_SET_STR(&u->usr_realm, csRealm);
! 228: AIT_SET_STR(&u->usr_home, csHome);
! 229: AIT_SET_STR(&u->usr_shell, csShell);
! 230:
! 231: AIT_KEY(&u->usr_name) = crcFletcher16(AIT_GET_LIKE(&u->usr_name, u_short*),
! 232: io_align(AIT_LEN(&u->usr_name) - 1, 2) / 2);
! 233:
! 234: PWD_LOCK(pwd);
! 235: RB_INSERT(tagPWD, pwd, u);
! 236: PWD_UNLOCK(pwd);
1.1.2.1 misho 237: return 2;
1.1.2.2 ! misho 238: } else {
! 239: AIT_FREE_VAL(&u->usr_pass);
! 240: AIT_FREE_VAL(&u->usr_uid);
! 241: AIT_FREE_VAL(&u->usr_gid);
! 242: AIT_FREE_VAL(&u->usr_class);
! 243: AIT_FREE_VAL(&u->usr_change);
! 244: AIT_FREE_VAL(&u->usr_expire);
! 245: AIT_FREE_VAL(&u->usr_realm);
! 246: AIT_FREE_VAL(&u->usr_home);
! 247: AIT_FREE_VAL(&u->usr_shell);
1.1.2.1 misho 248:
249: /* Update element */
1.1.2.2 ! misho 250: AIT_SET_STR(&u->usr_pass, csPass);
! 251: AIT_SET_U32(&u->usr_uid, uid);
! 252: AIT_SET_U32(&u->usr_gid, gid);
! 253: AIT_SET_STR(&u->usr_class, csClass);
! 254: AIT_SET_U32(&u->usr_change, change);
! 255: AIT_SET_U32(&u->usr_expire, expire);
! 256: AIT_SET_STR(&u->usr_realm, csRealm);
! 257: AIT_SET_STR(&u->usr_home, csHome);
! 258: AIT_SET_STR(&u->usr_shell, csShell);
1.1.2.1 misho 259: return 1;
260: }
261:
262: /* Nothing happens ... found & values is equal! */
263: return 0;
264: }
265:
266: /*
1.1.2.2 ! misho 267: * cfg_getPasswd() - Get item from passwords and return structure from it
1.1.2.1 misho 268: *
1.1.2.2 ! misho 269: * @pwd = Password root
! 270: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID]
! 271: * @arg1 = Username | UID
! 272: * return: NULL item not found, !=NULL structure found
1.1.2.1 misho 273: */
1.1.2.2 ! misho 274: inline const struct tagUser *
! 275: cfg_getPasswd(pwd_root_t * __restrict pwd, int criteria, ...)
1.1.2.1 misho 276: {
1.1.2.2 ! misho 277: struct tagUser *u;
! 278: va_list lst;
1.1.2.1 misho 279:
1.1.2.2 ! misho 280: if (!pwd)
1.1.2.1 misho 281: return NULL;
282:
1.1.2.2 ! misho 283: va_start(lst, criteria);
! 284: switch (criteria) {
! 285: case PWD_CRIT_NAME:
! 286: u = _selectPasswd(pwd, 0, va_arg(lst, char*));
! 287: break;
! 288: case PWD_CRIT_UID:
! 289: u = _selectPasswd(pwd, va_arg(lst, u_int), NULL);
! 290: break;
! 291: default:
! 292: u = NULL;
! 293: break;
1.1.2.1 misho 294: }
1.1.2.2 ! misho 295: va_end(lst);
1.1.2.1 misho 296:
1.1.2.2 ! misho 297: return u;
1.1.2.1 misho 298: }
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