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-rw-r--r--nis/nss_nisplus/nisplus-pwd.c293
1 files changed, 293 insertions, 0 deletions
diff --git a/nis/nss_nisplus/nisplus-pwd.c b/nis/nss_nisplus/nisplus-pwd.c
new file mode 100644
index 0000000000..3717d5e98a
--- /dev/null
+++ b/nis/nss_nisplus/nisplus-pwd.c
@@ -0,0 +1,293 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
+
+   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 <errno.h>
+#include <pwd.h>
+#include <string.h>
+#include <libc-lock.h>
+#include <rpcsvc/nis.h>
+#include <rpcsvc/nislib.h>
+
+#include "nss-nisplus.h"
+
+__libc_lock_define_initialized (static, lock)
+
+static nis_result *result = NULL;
+static nis_name *names = NULL;
+
+#define NISENTRYVAL(idx,col,res) \
+        ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
+
+#define NISENTRYLEN(idx,col,res) \
+        ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
+
+static int
+_nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw,
+			  char *buffer, size_t buflen)
+{
+  char *first_unused = buffer;
+  size_t room_left = buflen;
+
+  if (result == NULL)
+    return -1;
+
+  if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
+      result->objects.objects_len != 1 ||
+      result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
+      strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
+	     "passwd_tbl") != 0 ||
+      result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 7)
+    return -1;
+
+  if (NISENTRYLEN(0, 0, result) >= room_left)
+    {
+      /* The line is too long for our buffer.  */
+    no_more_room:
+      __set_errno (ERANGE);
+      return -1;
+    }
+
+  strncpy (first_unused, NISENTRYVAL(0, 0, result),
+	   NISENTRYLEN (0, 0, result));
+  first_unused[NISENTRYLEN(0, 0, result)] = '\0';
+  pw->pw_name = first_unused;
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  if (NISENTRYLEN(0, 1, result) >= room_left)
+    goto no_more_room;
+
+  strncpy (first_unused, NISENTRYVAL(0, 1, result),
+	   NISENTRYLEN (0, 1, result));
+  first_unused[NISENTRYLEN(0, 1, result)] = '\0';
+  pw->pw_passwd = first_unused;
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  if (NISENTRYLEN(0, 2, result) >= room_left)
+    goto no_more_room;
+
+  strncpy (first_unused, NISENTRYVAL (0, 2, result),
+	   NISENTRYLEN (0, 2, result));
+  first_unused[NISENTRYLEN(0, 2, result)] = '\0';
+  pw->pw_uid = atoi (first_unused);
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  if (NISENTRYLEN(0, 3, result) >= room_left)
+    goto no_more_room;
+
+  strncpy (first_unused, NISENTRYVAL(0, 3, result),
+	   NISENTRYLEN (0, 3, result));
+  first_unused[NISENTRYLEN(0, 3, result)] = '\0';
+  pw->pw_gid = atoi (first_unused);
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  if (NISENTRYLEN(0, 4, result) >= room_left)
+    goto no_more_room;
+
+  strncpy (first_unused, NISENTRYVAL(0, 4, result),
+	   NISENTRYLEN (0, 4, result));
+  first_unused[NISENTRYLEN(0, 4, result)] = '\0';
+  pw->pw_gecos = first_unused;
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  if (NISENTRYLEN(0, 5, result) >= room_left)
+    goto no_more_room;
+
+  strncpy (first_unused, NISENTRYVAL (0, 5, result),
+	   NISENTRYLEN (0, 5, result));
+  first_unused[NISENTRYLEN(0, 5, result)] = '\0';
+  pw->pw_dir = first_unused;
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  if (NISENTRYLEN(0, 6, result) >= room_left)
+    goto no_more_room;
+
+  strncpy (first_unused, NISENTRYVAL (0, 6, result),
+	   NISENTRYLEN (0, 6, result));
+  first_unused[NISENTRYLEN (0, 6, result)] = '\0';
+  pw->pw_shell = first_unused;
+  room_left -= (strlen (first_unused) +1);
+  first_unused += strlen (first_unused) +1;
+
+  return 1;
+}
+
+enum nss_status
+_nss_nisplus_setpwent (void)
+{
+  __libc_lock_lock (lock);
+
+  if (result)
+    nis_freeresult (result);
+  result = NULL;
+  if (names)
+    {
+      nis_freenames (names);
+      names = NULL;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nisplus_endpwent (void)
+{
+  __libc_lock_lock (lock);
+
+  if (result)
+    nis_freeresult (result);
+  result = NULL;
+  if (names)
+    {
+      nis_freenames (names);
+      names = NULL;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nisplus_getpwent_r (struct passwd *pw, char *buffer, size_t buflen)
+{
+  int parse_res;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      if (result == NULL)
+	{
+	  names = nis_getnames ("passwd.org_dir");
+	  if (names == NULL || names[0] == NULL)
+	    return NSS_STATUS_UNAVAIL;
+
+	  result = nis_first_entry(names[0]);
+	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+	    return niserr2nss (result->status);
+	}
+      else
+	{
+	  nis_result *res;
+
+	  res = nis_next_entry(names[0], &result->cookie);
+	  nis_freeresult (result);
+	  result = res;
+	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+	    return niserr2nss (result->status);
+	}
+
+      parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen);
+    } while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nisplus_getpwent_r (struct passwd *result, char *buffer, size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nisplus_getpwent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nisplus_getpwnam_r (const char *name, struct passwd *pw,
+		     char *buffer, size_t buflen)
+{
+  int parse_res;
+
+  if (name == NULL || strlen (name) > 8)
+    return NSS_STATUS_NOTFOUND;
+  else
+    {
+      nis_result *result;
+      char buf[strlen (name) + 24];
+
+      sprintf(buf, "[name=%s],passwd.org_dir", name);
+
+      result = nis_list(buf, EXPAND_NAME, NULL, NULL);
+
+      if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+	{
+	  enum nss_status status =  niserr2nss (result->status);
+
+	  nis_freeresult (result);
+	  return status;
+	}
+
+      parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen);
+
+      nis_freeresult (result);
+
+      if (parse_res)
+	return NSS_STATUS_SUCCESS;
+
+      if (!parse_res && errno == ERANGE)
+	return NSS_STATUS_TRYAGAIN;
+      else
+	return NSS_STATUS_NOTFOUND;
+    }
+}
+
+enum nss_status
+_nss_nisplus_getpwuid_r (const uid_t uid, struct passwd *pw,
+		     char *buffer, size_t buflen)
+{
+  int parse_res;
+  nis_result *result;
+  char buf[100];
+
+  sprintf(buf, "[uid=%d],passwd.org_dir", uid);
+
+  result = nis_list(buf, EXPAND_NAME, NULL, NULL);
+
+  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+   {
+     enum nss_status status = niserr2nss (result->status);
+
+     nis_freeresult (result);
+     return status;
+   }
+
+  parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen);
+
+  nis_freeresult (result);
+  if (parse_res)
+    return NSS_STATUS_SUCCESS;
+
+  if (!parse_res && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else
+    return NSS_STATUS_NOTFOUND;
+}
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