File glibc-2.10-hsearch.diff of Package glibc

commit c2d5bd5b00cfbb0ef192821f2d724fb6448d59e3
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Fri Apr 24 18:20:10 2009 +0000

    [BZ #10100]
    
    2009-04-24  Ulrich Drepper  <drepper@redhat.com>
    	[BZ #10100]
    	* misc/hsearch_r.c (hsearch_r): Add back ensurance that hval is
    	not zero.

diff --git a/misc/hsearch_r.c b/misc/hsearch_r.c
index 6e32afc..73b9565 100644
--- misc/hsearch_r.c
+++ misc/hsearch_r.c
@@ -157,6 +157,8 @@ hsearch_r (item, action, retval, htab)
       hval <<= 4;
       hval += item.key[count];
     }
+  if (hval == 0)
+    ++hval;
 
   /* First hash function: simply take the modul but prevent zero. */
   idx = hval % htab->size + 1;

commit 8073a49484461fbf71cacb154cc2aa2cdac0cca2
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Fri Jan 23 20:34:21 2009 +0000

    (hcreate_r): We need at least three elements in the hash table.

diff --git a/misc/hsearch_r.c b/misc/hsearch_r.c
index c855a41..6e32afc 100644
--- misc/hsearch_r.c
+++ misc/hsearch_r.c
@@ -79,6 +79,10 @@ hcreate_r (nel, htab)
   if (htab->table != NULL)
     return 0;
 
+  /* We need a size of at least 3.  Otherwise the hash functions we
+     use will not work.  */
+  if (nel < 3)
+    nel = 3;
   /* Change nel to the first prime number not smaller as nel. */
   nel |= 1;      /* make odd */
   while (!isprime (nel))