aboutsummaryrefslogtreecommitdiff
path: root/nis/nss_nis/nis-network.c
diff options
context:
space:
mode:
Diffstat (limited to 'nis/nss_nis/nis-network.c')
-rw-r--r--nis/nss_nis/nis-network.c292
1 files changed, 292 insertions, 0 deletions
diff --git a/nis/nss_nis/nis-network.c b/nis/nss_nis/nis-network.c
new file mode 100644
index 0000000000..2795feb421
--- /dev/null
+++ b/nis/nss_nis/nis-network.c
@@ -0,0 +1,292 @@
+/* Copyright (C) 1996 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <nss.h>
+#include <netdb.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <arpa/inet.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 = NULL;
+static int oldkeylen = 0;
+
+enum nss_status
+_nss_nis_setnetent (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;
+}
+
+enum nss_status
+_nss_nis_endnetent (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;
+}
+
+static enum nss_status
+internal_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen,
+ int *herrnop)
+{
+ char *domain, *result, *outkey;
+ int len, keylen, parse_res;
+
+ if (yp_get_default_domain (&domain))
+ return NSS_STATUS_UNAVAIL;
+
+ /* Get the next entry until we found a correct one. */
+ do
+ {
+ enum nss_status retval;
+ char *p;
+
+ if (new_start)
+ retval = yperr2nss (yp_first (domain, "networks.byname",
+ &outkey, &keylen, &result, &len));
+ else
+ retval = yperr2nss ( yp_next (domain, "networks.byname",
+ oldkey, oldkeylen,
+ &outkey, &keylen, &result, &len));
+
+ if (retval != NSS_STATUS_SUCCESS)
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
+ {
+ *herrnop = NETDB_INTERNAL;
+ __set_errno (EAGAIN);
+ }
+ return retval;
+ }
+
+ if (len + 1 > buflen)
+ {
+ free (result);
+ __set_errno (ERANGE);
+ *herrnop = NETDB_INTERNAL;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
+ while (isspace (*p))
+ ++p;
+ free (result);
+
+ parse_res = _nss_files_parse_netent (p, net, buffer, buflen);
+ if (!parse_res && errno == ERANGE)
+ {
+ *herrnop = NETDB_INTERNAL;
+ 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_getnetent_r (struct netent *net, char *buffer, size_t buflen,
+ int *herrnop)
+{
+ enum nss_status status;
+
+ __libc_lock_lock (lock);
+
+ status = internal_nis_getnetent_r (net, buffer, buflen, herrnop);
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
+
+enum nss_status
+_nss_nis_getnetbyname_r (const char *name, struct netent *net,
+ char *buffer, size_t buflen, int *herrnop)
+{
+ enum nss_status retval;
+ char *domain, *result, *p;
+ int len, parse_res;
+
+ if (name == NULL)
+ {
+ __set_errno (EINVAL);
+ *herrnop = NETDB_INTERNAL;
+ return NSS_STATUS_UNAVAIL;
+ }
+
+ if (yp_get_default_domain (&domain))
+ return NSS_STATUS_UNAVAIL;
+
+ retval = yperr2nss (yp_match (domain, "networks.byname", name,
+ strlen (name), &result, &len));
+
+ if (retval != NSS_STATUS_SUCCESS)
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
+ {
+ __set_errno (EAGAIN);
+ *herrnop = NETDB_INTERNAL;
+ }
+ return retval;
+ }
+
+ if (len + 1 > buflen)
+ {
+ free (result);
+ __set_errno (ERANGE);
+ *herrnop = NETDB_INTERNAL;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
+ while (isspace (*p))
+ ++p;
+ free (result);
+
+ parse_res = _nss_files_parse_netent (p, net, buffer, buflen);
+
+ if (!parse_res)
+ {
+ *herrnop = NETDB_INTERNAL;
+ if (errno == ERANGE)
+ return NSS_STATUS_TRYAGAIN;
+ else
+ return NSS_STATUS_NOTFOUND;
+ }
+ else
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getnetbyaddr_r (unsigned long addr, int type, struct netent *net,
+ char *buffer, size_t buflen, int *herrnop)
+{
+ char *domain;
+ char *result;
+ int len;
+ char buf[256];
+ int blen;
+ struct in_addr in;
+ char *p;
+
+ if (yp_get_default_domain (&domain))
+ return NSS_STATUS_UNAVAIL;
+
+ in = inet_makeaddr (addr, 0);
+ strcpy (buf, inet_ntoa (in));
+ blen = strlen (buf);
+
+ while (1)
+ {
+ enum nss_status retval;
+ int parse_res;
+
+ retval = yperr2nss (yp_match (domain, "networks.byaddr", buf,
+ strlen (buf), &result, &len));
+
+ if (retval != NSS_STATUS_SUCCESS)
+ {
+ if (retval == NSS_STATUS_NOTFOUND)
+ {
+ if (buf[blen - 2] == '.' && buf[blen - 1] == '0')
+ {
+ /* Try again, but with trailing dot(s)
+ removed (one by one) */
+ buf[blen - 2] = '\0';
+ blen -= 2;
+ continue;
+ }
+ else
+ return NSS_STATUS_NOTFOUND;
+ }
+ else
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
+ __set_errno (EAGAIN);
+ return retval;
+ }
+ }
+
+ if (len + 1 > buflen)
+ {
+ free (result);
+ __set_errno (ERANGE);
+ *herrnop = NETDB_INTERNAL;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
+ while (isspace (*p))
+ ++p;
+ free (result);
+
+ parse_res = _nss_files_parse_netent (p, net, buffer, buflen);
+
+
+ if (!parse_res)
+ {
+ *herrnop = NETDB_INTERNAL;
+ if (errno == ERANGE)
+ return NSS_STATUS_TRYAGAIN;
+ else
+ return NSS_STATUS_NOTFOUND;
+ }
+ else
+ return NSS_STATUS_SUCCESS;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 17:10:35 +0000