Arthur de Jong

Open Source / Free Software developer

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-rw-r--r--nss/ethers.c114
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diff --git a/nss/ethers.c b/nss/ethers.c
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+/*
+ ethers.c - NSS lookup functions for ethers database
+
+ Copyright (C) 2006 West Consulting
+ Copyright (C) 2006 Arthur de Jong
+
+ This 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.
+
+ This 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 this library; if not, write to the Free
+ Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ MA 02110-1301 USA
+*/
+
+#include "config.h"
+
+#include <string.h>
+#include <nss.h>
+#include <errno.h>
+
+#include "exports.h"
+#include "nslcd-client.h"
+#include "common.h"
+
+/* macros for expanding the LDF_ETHER macro */
+#define LDF_STRING(field) READ_STRING_BUF(fp,field)
+#define LDF_TYPE(field,type) READ_TYPE(fp,field,type)
+#define ETHER_NAME result->e_name
+#define ETHER_ADDR result->e_addr
+
+/* map a hostname to the corresponding ethernet address */
+enum nss_status _nss_ldap_gethostton_r(
+ const char *name,struct etherent *result,
+ char *buffer,size_t buflen,int *errnop)
+{
+ FILE *fp;
+ int32_t tmpint32;
+ size_t bufptr=0;
+ /* open socket and write request */
+ OPEN_SOCK(fp);
+ WRITE_REQUEST(fp,NSLCD_ACTION_ETHER_BYNAME);
+ WRITE_STRING(fp,name);
+ WRITE_FLUSH(fp);
+ /* read response */
+ READ_RESPONSEHEADER(fp,NSLCD_ACTION_ETHER_BYNAME);
+ READ_RESPONSE_CODE(fp);
+ LDF_ETHER;
+ /* close socket and we're done */
+ fclose(fp);
+ return NSS_STATUS_SUCCESS;
+}
+
+/* map an ethernet address to the corresponding hostname */
+enum nss_status _nss_ldap_getntohost_r(
+ const struct ether_addr *addr,struct etherent *result,
+ char *buffer,size_t buflen,int *errnop)
+{
+ FILE *fp;
+ int32_t tmpint32;
+ size_t bufptr=0;
+ /* open socket and write request */
+ OPEN_SOCK(fp);
+ WRITE_REQUEST(fp,NSLCD_ACTION_ETHER_BYNAME);
+ WRITE_TYPE(fp,addr,u_int8_t[6]);
+ WRITE_FLUSH(fp);
+ /* read response */
+ READ_RESPONSEHEADER(fp,NSLCD_ACTION_ETHER_BYNAME);
+ READ_RESPONSE_CODE(fp);
+ LDF_ETHER;
+ /* close socket and we're done */
+ fclose(fp);
+ return NSS_STATUS_SUCCESS;
+}
+
+/* thread-local file pointer to an ongoing request */
+static __thread FILE *etherentfp;
+#define fp etherentfp
+
+enum nss_status _nss_ldap_setetherent(int stayopen)
+{
+ NSS_SETENT(NSLCD_ACTION_ETHER_ALL);
+}
+
+enum nss_status _nss_ldap_getetherent_r(
+ struct etherent *result,
+ char *buffer,size_t buflen,int *errnop)
+{
+ int32_t tmpint32;
+ size_t bufptr=0;
+ /* check that we have a valid file descriptor */
+ if (fp==NULL)
+ {
+ *errnop=ENOENT;
+ return NSS_STATUS_UNAVAIL;
+ }
+ /* read a response */
+ READ_RESPONSE_CODE(fp);
+ LDF_ETHER;
+ /* return result code */
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status _nss_ldap_endetherent(void)
+{
+ NSS_ENDENT();
+}