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-rw-r--r--glibc-compat/nss_nis/nis-ethers.c299
1 files changed, 299 insertions, 0 deletions
diff --git a/glibc-compat/nss_nis/nis-ethers.c b/glibc-compat/nss_nis/nis-ethers.c
new file mode 100644
index 0000000000..54b99dcba9
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-ethers.c
@@ -0,0 +1,299 @@
+/* Copyright (C) 1996, 1997 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 <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+#include <netinet/if_ether.h>
+
+#include "nss-nis.h"
+
+/* Protect global state against multiple changers */
+__libc_lock_define_initialized (static, lock)
+
+struct ether
+{
+  const char *e_name;
+  struct ether_addr e_addr;
+};
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME etherent
+#define STRUCTURE ether
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+struct response
+{
+  char *val;
+  struct response *next;
+};
+
+static struct response *start = NULL;
+static struct response *next = NULL;
+
+static int
+saveit (int instatus, char *inkey, int inkeylen, char *inval,
+	int invallen, char *indata)
+{
+  if (instatus != YP_TRUE)
+    return instatus;
+
+  if (inkey && inkeylen > 0 && inval && invallen > 0)
+    {
+      if (start == NULL)
+	{
+	  start = malloc (sizeof (struct response));
+	  next = start;
+	}
+      else
+	{
+	  next->next = malloc (sizeof (struct response));
+	  next = next->next;
+	}
+      next->next = NULL;
+      next->val = malloc (invallen + 1);
+      strncpy (next->val, inval, invallen);
+      next->val[invallen] = '\0';
+    }
+
+  return 0;
+}
+
+enum nss_status
+internal_nis_setetherent (void)
+{
+  char *domainname;
+  struct ypall_callback ypcb;
+  enum nss_status status;
+
+  yp_get_default_domain (&domainname);
+
+  while (start != NULL)
+    {
+      if (start->val != NULL)
+	free (start->val);
+      next = start;
+      start = start->next;
+      free (next);
+    }
+  start = NULL;
+
+  ypcb.foreach = saveit;
+  ypcb.data = NULL;
+  status = yperr2nss (yp_all (domainname, "ethers.byname", &ypcb));
+  next = start;
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_setetherent (void)
+{
+  enum nss_status result;
+
+  __libc_lock_lock (lock);
+
+  result = internal_nis_setetherent ();
+
+  __libc_lock_unlock (lock);
+
+  return result;
+}
+
+enum nss_status
+_nss_nis_endetherent (void)
+{
+  __libc_lock_lock (lock);
+
+  while (start != NULL)
+    {
+      if (start->val != NULL)
+	free (start->val);
+      next = start;
+      start = start->next;
+      free (next);
+    }
+  start = NULL;
+  next = NULL;
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getetherent_r (struct ether *eth, char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  int parse_res;
+
+  if (start == NULL)
+    internal_nis_setetherent ();
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      char *p;
+
+      if (next == NULL)
+	return NSS_STATUS_NOTFOUND;
+      p = strncpy (buffer, next->val, buflen);
+      next = next->next;
+
+      while (isspace (*p))
+        ++p;
+
+      parse_res = _nss_files_parse_etherent (p, eth, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getetherent_r (struct ether *result, char *buffer, size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getetherent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_gethostton_r (const char *name, struct ether *eth,
+		       char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  retval = yperr2nss (yp_match (domain, "ethers.byname", name,
+				strlen (name), &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_etherent (p, eth, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getntohost_r (struct ether_addr *addr, struct ether *eth,
+		       char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, nlen, parse_res;
+  char buf[33];
+
+  if (addr == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  nlen = sprintf (buf, "%x:%x:%x:%x:%x:%x",
+		  (int) addr->ether_addr_octet[0],
+		  (int) addr->ether_addr_octet[1],
+		  (int) addr->ether_addr_octet[2],
+		  (int) addr->ether_addr_octet[3],
+		  (int) addr->ether_addr_octet[4],
+		  (int) addr->ether_addr_octet[5]);
+
+  retval = yperr2nss (yp_match (domain, "ethers.byaddr", buf,
+				nlen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_etherent (p, eth, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
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