1 files changed, 115 insertions, 0 deletions
diff --git a/nss/nss_files/files-key.c b/nss/nss_files/files-key.c
new file mode 100644
index 0000000000..a3c1474c2d
--- /dev/null
+++ b/nss/nss_files/files-key.c
@@ -0,0 +1,115 @@
+/* Public key file parser in nss_files module.
+   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <errno.h>
+#include <string.h>
+#include <netdb.h>
+#include <rpc/key_prot.h>
+#include "nsswitch.h"
+
+#define DATAFILE "/etc/publickey"
+
+/* Prototype for function in xcyrpt.c.  */
+extern int xdecrypt (char *, char *);
+
+
+static enum nss_status
+search (const char *netname, char *result, int *errnop, int secret)
+{
+  FILE *stream;
+
+  stream = fopen (DATAFILE, "r");
+  if (stream == NULL)
+    return errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
+
+  for (;;)
+    {
+      char buffer[HEXKEYBYTES * 2 + KEYCHECKSUMSIZE + MAXNETNAMELEN + 17];
+      char *p;
+      char *save_ptr;
+
+      buffer[sizeof (buffer) - 1] = '\xff';
+      p = fgets (buffer, sizeof (buffer), stream);
+      if (p == NULL)
+	{
+	  /* End of file or read error.  */
+	  *errnop = errno;
+	  fclose (stream);
+	  return NSS_STATUS_NOTFOUND;
+	}
+      else if (buffer[sizeof (buffer) - 1] != '\xff')
+	{
+	  /* Invalid line in file?  Skip remainder of line.  */
+	  if (buffer[sizeof (buffer) - 2] != '\0')
+	    while (getc (stream) != '\n')
+	      continue;
+	  continue;
+	}
+
+      /* Parse line.  */
+      p = __strtok_r (buffer, "# \t:\n", &save_ptr);
+      if (p == NULL) /* Skip empty and comment lines.  */
+	continue;
+      if (strcmp (p, netname) != 0)
+	continue;
+
+      /* A hit!  Find the field we want and return.  */
+      p = __strtok_r (NULL, ":\n", &save_ptr);
+      if (p == NULL)  /* malformed line? */
+	continue;
+      if (secret)
+	p = __strtok_r (NULL, ":\n", &save_ptr);
+      if (p == NULL)  /* malformed line? */
+	continue;
+      strcpy (result, p);
+      return NSS_STATUS_SUCCESS;
+    }
+}
+
+enum nss_status
+_nss_files_getpublickey (const char *netname, char *pkey, int *errnop)
+{
+  return search (netname, pkey, errnop, 0);
+}
+
+enum nss_status
+_nss_files_getsecretkey (const char *netname, char *skey, char *passwd,
+			 int *errnop)
+{
+  enum nss_status status;
+  char buf[HEXKEYBYTES + KEYCHECKSUMSIZE + 16];
+
+  skey[0] = 0;
+
+  status = search (netname, buf, errnop, 1);
+  if (status != NSS_STATUS_SUCCESS)
+    return status;
+
+  if (!xdecrypt (buf, passwd))
+    return NSS_STATUS_SUCCESS;
+
+  if (memcmp (buf, &(buf[HEXKEYBYTES]), KEYCHECKSUMSIZE) != 0)
+    return NSS_STATUS_SUCCESS;
+
+  buf[HEXKEYBYTES] = 0;
+  strcpy (skey, buf);
+
+  return NSS_STATUS_SUCCESS;
+}