1 /* Copyright (C) 1996-2002, 2003, 2006 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
25 #include <bits/libc-lock.h>
26 #include <rpcsvc/yp.h>
27 #include <rpcsvc/ypclnt.h>
31 __libc_lock_define_initialized (static, lock)
33 static bool_t new_start = 1;
38 _nss_nis_parse_aliasent (const char *key, char *alias, struct aliasent *result,
39 char *buffer, size_t buflen, int *errnop)
41 char *first_unused = buffer + strlen (alias) + 1;
43 buflen - (buflen % __alignof__ (char *)) - strlen (alias) - 2;
47 result->alias_members_len = 0;
50 strcpy (first_unused, key);
52 if (first_unused[room_left - 1] != '\0')
54 /* The line is too long for our buffer. */
60 result->alias_name = first_unused;
62 /* Terminate the line for any case. */
63 cp = strpbrk (alias, "#\n");
67 first_unused += strlen (result->alias_name) + 1;
68 /* Adjust the pointer so it is aligned for
70 first_unused += __alignof__ (char *) - 1;
71 first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
72 result->alias_members = (char **) first_unused;
78 /* Skip leading blanks. */
79 while (isspace (*line))
85 if (room_left < sizeof (char *))
87 room_left -= sizeof (char *);
88 result->alias_members[result->alias_members_len] = line;
90 while (*line != '\0' && *line != ',')
93 if (line != result->alias_members[result->alias_members_len])
97 result->alias_members_len++;
100 return result->alias_members_len == 0 ? 0 : 1;
104 _nss_nis_setaliasent (void)
106 __libc_lock_lock (lock);
116 __libc_lock_unlock (lock);
118 return NSS_STATUS_SUCCESS;
120 /* The 'endaliasent' function is identical. */
121 strong_alias (_nss_nis_setaliasent, _nss_nis_endaliasent)
123 static enum nss_status
124 internal_nis_getaliasent_r (struct aliasent *alias, char *buffer,
125 size_t buflen, int *errnop)
135 if (yp_get_default_domain (&domain))
136 return NSS_STATUS_UNAVAIL;
138 alias->alias_local = 0;
140 /* Get the next entry until we found a correct one. */
143 enum nss_status retval;
146 retval = yperr2nss (yp_first (domain, "mail.aliases",
147 &outkey, &keylen, &result, &len));
149 retval = yperr2nss ( yp_next (domain, "mail.aliases", oldkey,
150 oldkeylen, &outkey, &keylen,
152 if (retval != NSS_STATUS_SUCCESS)
154 if (retval == NSS_STATUS_TRYAGAIN)
159 if ((size_t) (len + 1) > buflen)
163 return NSS_STATUS_TRYAGAIN;
165 p = strncpy (buffer, result, len);
171 parse_res = _nss_nis_parse_aliasent (outkey, p, alias, buffer, buflen,
177 return NSS_STATUS_TRYAGAIN;
187 return NSS_STATUS_SUCCESS;
191 _nss_nis_getaliasent_r (struct aliasent *alias, char *buffer, size_t buflen,
194 enum nss_status status;
196 __libc_lock_lock (lock);
198 status = internal_nis_getaliasent_r (alias, buffer, buflen, errnop);
200 __libc_lock_unlock (lock);
206 _nss_nis_getaliasbyname_r (const char *name, struct aliasent *alias,
207 char *buffer, size_t buflen, int *errnop)
212 return NSS_STATUS_UNAVAIL;
215 size_t namlen = strlen (name);
216 char name2[namlen + 1];
219 if (yp_get_default_domain (&domain))
220 return NSS_STATUS_UNAVAIL;
222 /* Convert name to lowercase. */
224 for (i = 0; i < namlen; ++i)
225 name2[i] = _tolower (name[i]);
230 enum nss_status retval = yperr2nss (yp_match (domain, "mail.aliases", name2,
231 namlen, &result, &len));
233 if (retval != NSS_STATUS_SUCCESS)
235 if (retval == NSS_STATUS_TRYAGAIN)
240 if ((size_t) (len + 1) > buflen)
244 return NSS_STATUS_TRYAGAIN;
247 char *p = strncpy (buffer, result, len);
253 alias->alias_local = 0;
254 int parse_res = _nss_nis_parse_aliasent (name, p, alias, buffer, buflen,
259 return NSS_STATUS_TRYAGAIN;
261 return NSS_STATUS_NOTFOUND;
264 return NSS_STATUS_SUCCESS;