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gnutls_x509_crt_check_hostname2(3) gnutls gnutls_x509_crt_check_hostname2(3) NAME gnutls_x509_crt_check_hostname2 - API function SYNOPSIS #include <gnutls/x509.h> unsigned gnutls_x509_crt_check_hostname2(gnutls_x509_crt_t cert, const char * hostname, unsigned int flags); ARGUMENTS gnutls_x509_crt_t cert should contain an gnutls_x509_crt_t type const char * hostname A null terminated string that contains a DNS name unsigned int flags gnutls_certificate_verify_flags DESCRIPTION This function will check if the given certificate's subject matches the given hostname. This is a basic implementation of the matching described in RFC6125, and takes into account wildcards, and the DNSName/IPAddress subject alternative name PKIX extension. IPv4 addresses are accepted by this function in the dotted-decimal format (e.g, ddd.ddd.ddd.ddd), and IPv6 addresses in the hexadecimal x:x:x:x:x:x:x:x format. For them the IPAddress subject alternative name ex- tension is consulted. Previous versions to 3.6.0 of GnuTLS in case of a non-match would consult (in a non-standard extension) the DNSname and CN fields. This is no longer the case. When the flag GNUTLS_VERIFY_DO_NOT_ALLOW_WILDCARDS is specified no wild- cards are considered. Otherwise they are only considered if the domain name consists of three components or more, and the wildcard starts at the left- most position. When the flag GNUTLS_VERIFY_DO_NOT_ALLOW_IP_MATCHES is specified, the input will be treated as a DNS name, and matching of textual IP addresses against the IPAddress part of the alternative name will not be allowed. The function gnutls_x509_crt_check_ip() is available for matching IP ad- dresses. RETURNS non-zero for a successful match, and zero on failure. SINCE 3.3.0 REPORTING BUGS Report bugs to <bugs@gnutls.org>. Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001-2023 Free Software Foundation, Inc., and others. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. SEE ALSO The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/local/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.8.13 gnutls_x509_crt_check_hostname2(3)
NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO
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