1 /* Copyright (C) 1996, 1997, 1998 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 Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 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 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
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;
34 static char *oldkey = NULL;
35 static int oldkeylen = 0;
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;
122 _nss_nis_endaliasent (void)
124 __libc_lock_lock (lock);
134 __libc_lock_unlock (lock);
136 return NSS_STATUS_SUCCESS;
139 static enum nss_status
140 internal_nis_getaliasent_r (struct aliasent *alias, char *buffer,
141 size_t buflen, int *errnop)
151 if (yp_get_default_domain (&domain))
152 return NSS_STATUS_UNAVAIL;
154 alias->alias_local = 0;
156 /* Get the next entry until we found a correct one. */
159 enum nss_status retval;
162 retval = yperr2nss (yp_first (domain, "mail.aliases",
163 &outkey, &keylen, &result, &len));
165 retval = yperr2nss ( yp_next (domain, "mail.aliases", oldkey,
166 oldkeylen, &outkey, &keylen,
168 if (retval != NSS_STATUS_SUCCESS)
170 if (retval == NSS_STATUS_NOTFOUND)
172 else if (retval == NSS_STATUS_TRYAGAIN)
177 if ((size_t) (len + 1) > buflen)
181 return NSS_STATUS_TRYAGAIN;
183 p = strncpy (buffer, result, len);
189 parse_res = _nss_nis_parse_aliasent (outkey, p, alias, buffer, buflen,
195 return NSS_STATUS_TRYAGAIN;
205 return NSS_STATUS_SUCCESS;
209 _nss_nis_getaliasent_r (struct aliasent *alias, char *buffer, size_t buflen,
212 enum nss_status status;
214 __libc_lock_lock (lock);
216 status = internal_nis_getaliasent_r (alias, buffer, buflen, errnop);
218 __libc_lock_unlock (lock);
224 _nss_nis_getaliasbyname_r (const char *name, struct aliasent *alias,
225 char *buffer, size_t buflen, int *errnop)
227 enum nss_status retval;
233 size_t namlen = strlen (name);
234 char name2[namlen + 1];
240 return NSS_STATUS_UNAVAIL;
243 if (yp_get_default_domain (&domain))
244 return NSS_STATUS_UNAVAIL;
246 /* Convert name to lowercase. */
247 for (i = 0; i < namlen; ++i)
248 name2[i] = tolower (name[i]);
251 retval = yperr2nss (yp_match (domain, "mail.aliases", name2, namlen,
254 if (retval != NSS_STATUS_SUCCESS)
256 if (retval == NSS_STATUS_TRYAGAIN)
261 if ((size_t) (len + 1) > buflen)
265 return NSS_STATUS_TRYAGAIN;
268 p = strncpy (buffer, result, len);
274 alias->alias_local = 0;
275 parse_res = _nss_nis_parse_aliasent (name, p, alias, buffer, buflen, errnop);
279 return NSS_STATUS_TRYAGAIN;
281 return NSS_STATUS_NOTFOUND;
284 return NSS_STATUS_SUCCESS;