static int
name_to_code(struct mapping *map, const char *name)
{
for ( ; map->name != NULL; map++) {
if (TextInsensitiveCompare(name, map->name) == 0)
return map->code;
}
return -1;
}
/**
* @param path
* An email address or domain name string.
*
* @param flags
* Flag bit mask of reserved domains to restrict.
*
* @return
* True if the domain portion matches a reserved domain.
*
* @see
* RFC 2606, 6761, 6762
*/
int
isReservedTLD(const char *path, unsigned long flags)
{
char *p, *dot;
if (path == NULL) {
errno = EFAULT;
return 0;
}
if ((dot = strrchr(path, '.')) == NULL)
return 0;
if ((flags & IS_TLD_TEST) && TextInsensitiveCompare(dot, ".test") == 0)
return 1;
if ((flags & IS_TLD_EXAMPLE) && TextInsensitiveCompare(dot, ".example") == 0)
return 1;
if ((flags & IS_TLD_INVALID) && TextInsensitiveCompare(dot, ".invalid") == 0)
return 1;
if ((flags & IS_TLD_LOCALHOST) && TextInsensitiveCompare(dot, ".localhost") == 0)
return 1;
/* This is NOT an RFC 2606 reserved domain, but is in common
* usage, because of Debian and Redhat doing their own s***e.
*/
if ((flags & IS_TLD_LOCALDOMAIN) && TextInsensitiveCompare(dot, ".localdomain") == 0)
return 1;
/* This is NOT an RFC 2606 reserved domain, but is in common
* usage, because of broken Microsoft MCSE recommendations
* concerning Active Directory. Now reserved by RFC 6762.
*/
if ((flags & IS_TLD_LOCAL) && TextInsensitiveCompare(dot, ".local") == 0)
return 1;
/* This is NOT an RFC 2606 reserved domain, but is in common
* usage.
*/
if ((flags & IS_TLD_LAN) && TextInsensitiveCompare(dot, ".lan") == 0)
return 1;
/* This is NOT official. See https://en.wikipedia.org/wiki/Top-level_domain#Pseudo-domains */
if ((flags & IS_TLD_HOME) && TextInsensitiveCompare(dot, ".home") == 0)
return 1;
/* RFC 6761 reserved domain. */
if ((flags & IS_TLD_ARPA) && TextInsensitiveCompare(dot, ".arpa") == 0)
return 1;
if ((flags & IS_TLD_ONION) && TextInsensitiveCompare(dot, ".onion") == 0)
return 1;
/* RFC 2606 and 6761 reserve example.com, example.net, example.org,
* but we allow for example.ANY_TLD.
*/
p = dot+1 - (sizeof ("example.")-1);
if ((flags & IS_TLD_EXAMPLE)
&& sizeof ("example.")-1 <= dot-path+1
&& 0 < TextInsensitiveStartsWith(p, "example.")) {
if (path == p || (path < p && p[-1] != '-' && !isalnum(p[-1])))
return 1;
}
return 0;
}
