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Fixed X.509 hostname comparison (with non-regular characters)

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In situations with 'weird' certificate names or hostnames (containing
non-western allowed names) the check would falsely report a name or
wildcard match.
This commit is contained in:
Paul Bakker
2013-11-20 17:23:53 +01:00
parent c245834bc4
commit f2b4d86452
2 changed files with 10 additions and 2 deletions
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8
library/x509_crt.c
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@ -1273,11 +1273,15 @@ static int x509_name_cmp( const void *s1, const void *s2, size_t len )
{
diff = n1[i] ^ n2[i];
if( ( n1[i] >= 'a' || n1[i] <= 'z' ) && ( diff == 0 || diff == 32 ) )
if( diff == 0 )
continue;
if( ( n1[i] >= 'A' || n1[i] <= 'Z' ) && ( diff == 0 || diff == 32 ) )
if( diff == 32 &&
( ( n1[i] >= 'a' && n1[i] <= 'z' ) ||
( n1[i] >= 'A' && n1[i] <= 'Z' ) ) )
{
continue;
}
return( 1 );
}