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-rw-r--r--nis/nis_defaults.c466
1 files changed, 466 insertions, 0 deletions
diff --git a/nis/nis_defaults.c b/nis/nis_defaults.c
new file mode 100644
index 0000000000..9d152d1f11
--- /dev/null
+++ b/nis/nis_defaults.c
@@ -0,0 +1,466 @@
+/* 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <rpc/rpc.h>
+#include <rpcsvc/nis.h>
+#include <rpcsvc/nislib.h>
+
+#define DEFAULT_TTL 43200
+
+/*
+** Some functions for parsing the -D param and NIS_DEFAULTS Environ
+*/
+static nis_name
+searchgroup (char *str)
+{
+  static char default_group[NIS_MAXNAMELEN];
+ char *cptr;
+  int i;
+
+  cptr = strstr (str, "group=");
+  if (cptr == NULL)
+    return NULL;
+
+  cptr += 6;			/* points to the begin of the group string */
+  i = 0;
+  while (cptr[i] != '\0' && cptr[i] != ':')
+    i++;
+  if (i == 0)			/* only "group=" ? */
+    return (nis_name)"";
+
+  strncpy (default_group, cptr, i);
+
+  return default_group;
+}
+
+static nis_name
+searchowner (char *str)
+{
+  static char default_owner[NIS_MAXNAMELEN];
+  char *cptr;
+  int i;
+
+  cptr = strstr (str, "owner=");
+  if (cptr == NULL)
+    return NULL;
+
+  cptr += 6;			/* points to the begin of the owner string */
+  i = 0;
+  while (cptr[i] != '\0' && cptr[i] != ':')
+    i++;
+  if (i == 0)			/* only "owner=" ? */
+    return (nis_name)"";
+
+  strncpy (default_owner, cptr, i);
+
+  return default_owner;
+}
+
+static u_long
+searchttl (char *str)
+{
+  char buf[1024];
+  char *cptr, *dptr;
+  u_long time;
+  int i;
+
+  dptr = strstr (str, "ttl=");
+  if (dptr == NULL)		/* should (could) not happen */
+    return DEFAULT_TTL;;
+
+  dptr += 4;			/* points to the begin of the new ttl */
+  i = 0;
+  while (dptr[i] != '\0' && dptr[i] != ':')
+    i++;
+  if (i == 0)			/* only "ttl=" ? */
+    return DEFAULT_TTL;
+
+  strncpy (buf, dptr, i);
+  time = 0;
+
+  dptr = buf;
+  cptr = strchr (dptr, 'd');
+  if (cptr != NULL)
+    {
+      *cptr = '\0';
+      cptr++;
+      time += atoi (dptr) * 60 * 60 * 24;
+      dptr = cptr;
+    }
+
+  cptr = strchr (dptr, 'h');
+  if (cptr != NULL)
+    {
+      *cptr = '\0';
+      cptr++;
+      time += atoi (dptr) * 60 * 60;
+      dptr = cptr;
+    }
+
+  cptr = strchr (dptr, 'm');
+  if (cptr != NULL)
+    {
+      *cptr = '\0';
+      cptr++;
+      time += atoi (dptr) * 60;
+      dptr = cptr;
+    }
+
+  cptr = strchr (dptr, 's');
+  if (cptr != NULL)
+    *cptr = '\0';
+
+  time += atoi (dptr);
+
+  return time;
+}
+
+static u_long
+searchaccess (char *str, u_long access)
+{
+  static char buf[NIS_MAXNAMELEN];
+  char *cptr;
+  u_long result;
+  int i;
+  int n, o, g, w;
+
+  cptr = strstr (str, "access=");
+  if (cptr == NULL)
+    return 0;
+
+  cptr += 7;			/* points to the begin of the access string */
+  i = 0;
+  while (cptr[i] != '\0' && cptr[i] != ':')
+    i++;
+  if (i == 0)			/* only "access=" ? */
+    return 0;
+
+  strncpy (buf, cptr, i);
+
+  result = n = o = g = w = 0;
+  cptr = buf;
+  while (*cptr != '\0')
+    {
+      switch (*cptr)
+	{
+	case 'n':
+	  n = 1;
+	  break;
+	case 'o':
+	  o = 1;
+	  break;
+	case 'g':
+	  g = 1;
+	  break;
+	case 'w':
+	  w = 1;
+	  break;
+	case 'a':
+	  o = g = w = 1;
+	  break;
+	case '-':
+	  cptr++;		/* Remove "=" from beginning */
+	  while (*cptr != '\0' && *cptr != ',')
+	    {
+	      switch (*cptr)
+		{
+		case 'r':
+		  if (n)
+		    result = result & ~(NIS_READ_ACC << 24);
+		  if (o)
+		    result = result & ~(NIS_READ_ACC << 16);
+		  if (g)
+		    result = result & ~(NIS_READ_ACC << 8);
+		  if (w)
+		    result = result & ~(NIS_READ_ACC);
+		  break;
+		case 'm':
+		  if (n)
+		    result = result & ~(NIS_MODIFY_ACC << 24);
+		  if (o)
+		    result = result & ~(NIS_MODIFY_ACC << 16);
+		  if (g)
+		    result = result & ~(NIS_MODIFY_ACC << 8);
+		  if (w)
+		    result = result & ~(NIS_MODIFY_ACC);
+		  break;
+		case 'c':
+		  if (n)
+		    result = result & ~(NIS_CREATE_ACC << 24);
+		  if (o)
+		    result = result & ~(NIS_CREATE_ACC << 16);
+		  if (g)
+		    result = result & ~(NIS_CREATE_ACC << 8);
+		  if (w)
+		    result = result & ~(NIS_CREATE_ACC);
+		  break;
+		case 'd':
+		  if (n)
+		    result = result & ~(NIS_DESTROY_ACC << 24);
+		  if (o)
+		    result = result & ~(NIS_DESTROY_ACC << 16);
+		  if (g)
+		    result = result & ~(NIS_DESTROY_ACC << 8);
+		  if (w)
+		    result = result & ~(NIS_DESTROY_ACC);
+		  break;
+		default:
+		  fprintf (stderr, "Parse error in \"%s\"\n", buf);
+		  return 0;
+		}
+	      cptr++;
+	    }
+	  break;
+	case '+':
+	  cptr++;		/* Remove "=" from beginning */
+	  while (*cptr != '\0' && *cptr != ',')
+	    {
+	      switch (*cptr)
+		{
+		case 'r':
+		  if (n)
+		    result = result | (NIS_READ_ACC << 24);
+		  if (o)
+		    result = result | (NIS_READ_ACC << 16);
+		  if (g)
+		    result = result | (NIS_READ_ACC << 8);
+		  if (w)
+		    result = result | (NIS_READ_ACC);
+		  break;
+		case 'm':
+		  if (n)
+		    result = result | (NIS_MODIFY_ACC << 24);
+		  if (o)
+		    result = result | (NIS_MODIFY_ACC << 16);
+		  if (g)
+		    result = result | (NIS_MODIFY_ACC << 8);
+		  if (w)
+		    result = result | (NIS_MODIFY_ACC);
+		  break;
+		case 'c':
+		  if (n)
+		    result = result | (NIS_CREATE_ACC << 24);
+		  if (o)
+		    result = result | (NIS_CREATE_ACC << 16);
+		  if (g)
+		    result = result | (NIS_CREATE_ACC << 8);
+		  if (w)
+		    result = result | (NIS_CREATE_ACC);
+		  break;
+		case 'd':
+		  if (n)
+		    result = result | (NIS_DESTROY_ACC << 24);
+		  if (o)
+		    result = result | (NIS_DESTROY_ACC << 16);
+		  if (g)
+		    result = result | (NIS_DESTROY_ACC << 8);
+		  if (w)
+		    result = result | (NIS_DESTROY_ACC);
+		  break;
+		default:
+		  fprintf (stderr, "Parse error in \"%s\"\n", buf);
+		  return 0;
+		}
+	      cptr++;
+	    }
+	  break;
+	case '=':
+	  cptr++;		/* Remove "=" from beginning */
+	  /* Clear */
+	  if (n)
+	    result = result & ~((NIS_READ_ACC + NIS_MODIFY_ACC +
+				 NIS_CREATE_ACC + NIS_DESTROY_ACC) << 24);
+
+	  if (o)
+	    result = result & ~((NIS_READ_ACC + NIS_MODIFY_ACC +
+				 NIS_CREATE_ACC + NIS_DESTROY_ACC) << 16);
+	  if (g)
+	    result = result & ~((NIS_READ_ACC + NIS_MODIFY_ACC +
+				 NIS_CREATE_ACC + NIS_DESTROY_ACC) << 8);
+	  if (w)
+	    result = result & ~(NIS_READ_ACC + NIS_MODIFY_ACC +
+				NIS_CREATE_ACC + NIS_DESTROY_ACC);
+	  while (*cptr != '\0' && *cptr != ',')
+	    {
+	      switch (*cptr)
+		{
+		case 'r':
+		  if (n)
+		    result = result | (NIS_READ_ACC << 24);
+		  if (o)
+		    result = result | (NIS_READ_ACC << 16);
+		  if (g)
+		    result = result | (NIS_READ_ACC << 8);
+		  if (w)
+		    result = result | (NIS_READ_ACC);
+		  break;
+		case 'm':
+		  if (n)
+		    result = result | (NIS_MODIFY_ACC << 24);
+		  if (o)
+		    result = result | (NIS_MODIFY_ACC << 16);
+		  if (g)
+		    result = result | (NIS_MODIFY_ACC << 8);
+		  if (w)
+		    result = result | (NIS_MODIFY_ACC);
+		  break;
+		case 'c':
+		  if (n)
+		    result = result | (NIS_CREATE_ACC << 24);
+		  if (o)
+		    result = result | (NIS_CREATE_ACC << 16);
+		  if (g)
+		    result = result | (NIS_CREATE_ACC << 8);
+		  if (w)
+		    result = result | (NIS_CREATE_ACC);
+		  break;
+		case 'd':
+		  if (n)
+		    result = result | (NIS_DESTROY_ACC << 24);
+		  if (o)
+		    result = result | (NIS_DESTROY_ACC << 16);
+		  if (g)
+		    result = result | (NIS_DESTROY_ACC << 8);
+		  if (w)
+		    result = result | (NIS_DESTROY_ACC);
+		  break;
+		default:
+		  fprintf (stderr, "Parse error in \"%s\"\n", buf);
+		  return 0;
+		}
+	      cptr++;
+	    }
+	  break;
+	default:
+	  fprintf (stderr, "Parse error in \"%s\"\n", buf);
+	  return 0;
+	}
+      cptr++;
+    }
+
+  return 0;
+}
+
+nis_name
+__nis_default_owner (char *defaults)
+{
+  static char default_owner[NIS_MAXNAMELEN];
+  char *cptr, *dptr;
+
+  strcpy (default_owner, nis_local_principal ());
+
+  if (defaults != NULL)
+    {
+      dptr = strstr (defaults, "owner=");
+      if (dptr != NULL)
+	strcpy (default_owner, searchowner (defaults));
+    }
+  else
+    {
+      cptr = getenv ("NIS_DEFAULTS");
+      if (cptr != NULL)
+	{
+	  dptr = strstr (cptr, "owner=");
+	  if (dptr != NULL)
+	    strcpy (default_owner, searchowner (cptr));
+	}
+    }
+
+  return default_owner;
+}
+
+nis_name
+__nis_default_group (char *defaults)
+{
+  static char default_group[NIS_MAXNAMELEN];
+  char *cptr, *dptr;
+
+  strcpy (default_group, nis_local_group ());
+
+  if (defaults != NULL)
+    {
+      dptr = strstr (defaults, "group=");
+      if (dptr != NULL)
+	strcpy (default_group, searchgroup (defaults));
+    }
+  else
+    {
+      cptr = getenv ("NIS_DEFAULTS");
+      if (cptr != NULL)
+	{
+	  dptr = strstr (cptr, "group=");
+	  if (dptr != NULL)
+	    strcpy (default_group, searchgroup (cptr));
+	}
+    }
+
+  return default_group;
+}
+
+u_long
+__nis_default_ttl (char *defaults)
+{
+  char *cptr, *dptr;
+
+  if (defaults != NULL)
+    {
+      dptr = strstr (defaults, "ttl=");
+      if (dptr != NULL)
+	return searchttl (defaults);
+    }
+
+  cptr = getenv ("NIS_DEFAULTS");
+  if (cptr == NULL)
+    return DEFAULT_TTL;
+
+  dptr = strstr (cptr, "ttl=");
+  if (dptr == NULL)
+    return DEFAULT_TTL;
+
+  return searchttl (cptr);
+}
+
+/* Default access rights are ----rmcdr---r---, but we could change
+   this with the NIS_DEFAULTS variable. */
+u_long
+__nis_default_access (char *param, u_long defaults)
+{
+  u_long result;
+  char *cptr;
+
+  if (defaults == 0)
+    result = 0 | OWNER_DEFAULT | GROUP_DEFAULT | WORLD_DEFAULT;
+  else
+    result = defaults;
+
+  if (param != NULL && strstr (param, "access=") != NULL)
+    result = searchaccess (param, result);
+  else
+    {
+      cptr = getenv ("NIS_DEFAULTS");
+      if (cptr != NULL && strstr (cptr, "access=") != NULL)
+	result = searchaccess (getenv ("NIS_DEFAULTS"), result);
+    }
+
+  return result;
+}