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authorUlrich Drepper <drepper@redhat.com>1998-03-11 11:09:56 +0000
committerUlrich Drepper <drepper@redhat.com>1998-03-11 11:09:56 +0000
commit3d76e7784700c20fc222920b2a22baba006daa15 (patch)
tree7a44d4b9a084cf4b9ef6e44555a7ce8840f2d681 /nss
parentbc526b60ee5c7cc9fe0540c94d72caf486a41675 (diff)
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Update.
1998-03-11  Ulrich Drepper  <drepper@cygnus.com>

	* nss/nss_db/db-XXX.c (lookup): Copy data to safe place before
	parsing it.
Diffstat (limited to 'nss')
-rw-r--r--nss/nss_db/db-XXX.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/nss/nss_db/db-XXX.c b/nss/nss_db/db-XXX.c
index 1340b77de0..62c7a251f1 100644
--- a/nss/nss_db/db-XXX.c
+++ b/nss/nss_db/db-XXX.c
@@ -1,5 +1,5 @@
 /* Common code for DB-based databases in nss_db module.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   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
@@ -176,10 +176,19 @@ lookup (const DBT *key, struct STRUCTURE *result,
       H_ERRNO_SET (HOST_NOT_FOUND);
       status = NSS_STATUS_NOTFOUND;
     }
+  else if (buflen < value.size)
+    {
+      /* No room to copy the data to.  */
+      *errnop = ERANGE;
+      H_ERRNO_SET (NETDB_INTERNAL);
+      status = NSS_STATUS_TRYAGAIN;
+    }
   else
     {
+      /* Copy the result to a safe place.  */
+      p = (char *) memcpy (buffer, value.data, value.size);
+
       /* Skip leading blanks.  */
-      p = (char *) value.data;
       while (isspace (*p))
 	++p;