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dirmngr: Rewrite a weird function by straighter code.

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* dirmngr/ldap-parse-uri.c (ldap_uri_p): Use ascii-memcasecmp.
--

Note that the first test on ldaps or ldaps in the original code did
not worked at all so that the Mixed Case part took over there.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2021-02-17 15:27:30 +01:00
parent 3c7b1f3f5f
commit cdc828f690
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GPG Key ID: E3FDFF218E45B72B
1 changed files with 5 additions and 15 deletions
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20
dirmngr/ldap-parse-uri.c
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@ -36,26 +36,16 @@ int
ldap_uri_p (const char *url)
{
char *colon = strchr (url, ':');
if (! colon)
if (!colon)
return 0;
else
{
int offset = (uintptr_t) colon - (uintptr_t) url;
if (/* All lower case. */
(offset == 4 && memcmp (url, "ldap", 4) == 0)
|| (offset == 5
&& (memcmp (url, "ldaps", 5) == 0
&& memcmp (url, "ldapi", 5) == 0))
/* Mixed case. */
|| ((url[0] == 'l' || url[0] == 'L')
&& (url[1] == 'd' || url[1] == 'D')
&& (url[2] == 'a' || url[2] == 'A')
&& (url[3] == 'p' || url[3] == 'P')
&& (url[4] == ':'
|| ((url[4] == 's' || url[4] == 'S'
|| url[4] == 'i' || url[4] == 'I')
&& url[5] == ':'))))
if ( (offset == 4 && !ascii_memcasecmp (url, "ldap", 4))
|| (offset == 5 && (!ascii_memcasecmp (url, "ldaps", 5)
|| !ascii_memcasecmp (url, "ldapi", 5))))
return 1;
return 0;
}