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[settings] Fix setting_cmp() to handle nameless settings

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setting_cmp() compares by option tag and then by name.  Empty names
will always match, which gives us a false positive.

Fix by explicitly checking for empty names.

Modified-by: Michael Brown <mcb30@etherboot.org>
Signed-off-by: Michael Brown <mcb30@etherboot.org>
This commit is contained in:
Shao Miller
2009-06-11 15:12:27 -04:00
committed by Michael Brown
parent edfbd4e4fa
commit 68973f1c49
1 changed files with 6 additions and 2 deletions
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8
src/core/settings.c
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@@ -782,8 +782,12 @@ int setting_cmp ( struct setting *a, struct setting *b ) {
if ( a->tag && ( a->tag == b->tag ) ) if ( a->tag && ( a->tag == b->tag ) )
return 0; return 0;
/* Otherwise, compare the names */ /* Otherwise, if the settings have names, compare them */
return strcmp ( a->name, b->name ); if ( a->name && b->name && a->name[0] )
return strcmp ( a->name, b->name );
/* Otherwise, return a non-match */
return ( ! 0 );
} }
/****************************************************************************** /******************************************************************************