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Diffstat (limited to 'nis/nss_nis/nis-alias.c')
-rw-r--r--nis/nss_nis/nis-alias.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/nis/nss_nis/nis-alias.c b/nis/nss_nis/nis-alias.c
deleted file mode 100644
index b8f83b94b7..0000000000
--- a/nis/nss_nis/nis-alias.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
-
-#include <nss.h>
-#include <ctype.h>
-#include <errno.h>
-#include <string.h>
-#include <aliases.h>
-#include <libc-lock.h>
-#include <rpcsvc/yp.h>
-#include <rpcsvc/ypclnt.h>
-
-#include "nss-nis.h"
-
-__libc_lock_define_initialized (static, lock)
-
-static bool_t new_start = 1;
-static char *oldkey;
-static int oldkeylen;
-
-static int
-_nss_nis_parse_aliasent (const char *key, char *alias, struct aliasent *result,
- char *buffer, size_t buflen, int *errnop)
-{
- char *first_unused = buffer + strlen (alias) + 1;
- size_t room_left =
- buflen - (buflen % __alignof__ (char *)) - strlen (alias) - 2;
- char *line;
- char *cp;
-
- result->alias_members_len = 0;
- *first_unused = '\0';
- first_unused++;
- strcpy (first_unused, key);
-
- if (first_unused[room_left - 1] != '\0')
- {
- /* The line is too long for our buffer. */
- no_more_room:
- *errnop = ERANGE;
- return -1;
- }
-
- result->alias_name = first_unused;
-
- /* Terminate the line for any case. */
- cp = strpbrk (alias, "#\n");
- if (cp != NULL)
- *cp = '\0';
-
- first_unused += strlen (result->alias_name) + 1;
- /* Adjust the pointer so it is aligned for
- storing pointers. */
- first_unused += __alignof__ (char *) - 1;
- first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
- result->alias_members = (char **) first_unused;
-
- line = alias;
-
- while (*line != '\0')
- {
- /* Skip leading blanks. */
- while (isspace (*line))
- line++;
-
- if (*line == '\0')
- break;
-
- if (room_left < sizeof (char *))
- goto no_more_room;
- room_left -= sizeof (char *);
- result->alias_members[result->alias_members_len] = line;
-
- while (*line != '\0' && *line != ',')
- line++;
-
- if (line != result->alias_members[result->alias_members_len])
- {
- *line = '\0';
- line++;
- result->alias_members_len++;
- }
- }
- return result->alias_members_len == 0 ? 0 : 1;
-}
-
-enum nss_status
-_nss_nis_setaliasent (void)
-{
- __libc_lock_lock (lock);
-
- new_start = 1;
- if (oldkey != NULL)
- {
- free (oldkey);
- oldkey = NULL;
- oldkeylen = 0;
- }
-
- __libc_lock_unlock (lock);
-
- return NSS_STATUS_SUCCESS;
-}
-/* The 'endaliasent' function is identical. */
-strong_alias (_nss_nis_setaliasent, _nss_nis_endaliasent)
-
-static enum nss_status
-internal_nis_getaliasent_r (struct aliasent *alias, char *buffer,
- size_t buflen, int *errnop)
-{
- char *domain;
-
- if (__glibc_unlikely (yp_get_default_domain (&domain)))
- return NSS_STATUS_UNAVAIL;
-
- alias->alias_local = 0;
-
- /* Get the next entry until we found a correct one. */
- int parse_res;
- do
- {
- char *result;
- int len;
- char *outkey;
- int keylen;
- int yperr;
-
- if (new_start)
- yperr = yp_first (domain, "mail.aliases", &outkey, &keylen, &result,
- &len);
- else
- yperr = yp_next (domain, "mail.aliases", oldkey, oldkeylen, &outkey,
- &keylen, &result, &len);
-
- if (__glibc_unlikely (yperr != YPERR_SUCCESS))
- {
- enum nss_status retval = yperr2nss (yperr);
-
- if (retval == NSS_STATUS_TRYAGAIN)
- *errnop = errno;
- return retval;
- }
-
- if (__glibc_unlikely ((size_t) (len + 1) > buflen))
- {
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- char *p = strncpy (buffer, result, len);
- buffer[len] = '\0';
- while (isspace (*p))
- ++p;
- free (result);
-
- parse_res = _nss_nis_parse_aliasent (outkey, p, alias, buffer,
- buflen, errnop);
- if (__glibc_unlikely (parse_res == -1))
- {
- free (outkey);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
-
- free (oldkey);
- oldkey = outkey;
- oldkeylen = keylen;
- new_start = 0;
- }
- while (!parse_res);
-
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_nis_getaliasent_r (struct aliasent *alias, char *buffer, size_t buflen,
- int *errnop)
-{
- enum nss_status status;
-
- __libc_lock_lock (lock);
-
- status = internal_nis_getaliasent_r (alias, buffer, buflen, errnop);
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-enum nss_status
-_nss_nis_getaliasbyname_r (const char *name, struct aliasent *alias,
- char *buffer, size_t buflen, int *errnop)
-{
- if (name == NULL)
- {
- *errnop = EINVAL;
- return NSS_STATUS_UNAVAIL;
- }
-
- char *domain;
- if (__glibc_unlikely (yp_get_default_domain (&domain)))
- return NSS_STATUS_UNAVAIL;
-
- size_t namlen = strlen (name);
- char *name2;
- int use_alloca = __libc_use_alloca (namlen + 1);
- if (use_alloca)
- name2 = __alloca (namlen + 1);
- else
- {
- name2 = malloc (namlen + 1);
- if (name2 == NULL)
- {
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
- }
- }
-
- /* Convert name to lowercase. */
- size_t i;
- for (i = 0; i < namlen; ++i)
- name2[i] = _tolower (name[i]);
- name2[i] = '\0';
-
- char *result;
- int len;
- int yperr = yp_match (domain, "mail.aliases", name2, namlen, &result, &len);
-
- if (!use_alloca)
- free (name2);
-
- if (__glibc_unlikely (yperr != YPERR_SUCCESS))
- {
- enum nss_status retval = yperr2nss (yperr);
-
- if (retval == NSS_STATUS_TRYAGAIN)
- *errnop = errno;
- return retval;
- }
-
- if (__glibc_unlikely ((size_t) (len + 1) > buflen))
- {
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
-
- char *p = strncpy (buffer, result, len);
- buffer[len] = '\0';
- while (isspace (*p))
- ++p;
- free (result);
-
- alias->alias_local = 0;
- int parse_res = _nss_nis_parse_aliasent (name, p, alias, buffer, buflen,
- errnop);
- if (__glibc_unlikely (parse_res < 1))
- {
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
- else
- return NSS_STATUS_NOTFOUND;
- }
-
- return NSS_STATUS_SUCCESS;
-}
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