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.\" DO NOT MODIFY THIS FILE! It was generated by gdoc. .TH "gnutls_x509_crt_check_hostname" 3 "3.2.19" "gnutls" "gnutls" .SH NAME gnutls_x509_crt_check_hostname \- API function .SH SYNOPSIS .B #include <gnutls/x509.h> .sp .BI "int gnutls_x509_crt_check_hostname(gnutls_x509_crt_t " cert ", const char * " hostname ");" .SH ARGUMENTS .IP "gnutls_x509_crt_t cert" 12 should contain an gnutls_x509_crt_t structure .IP "const char * hostname" 12 A null terminated string that contains a DNS name .SH "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 RFC2818 (HTTPS), which 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 extension is consulted, as well as the DNSNames in case of a non\-match. The latter fallback exists due to misconfiguration of many servers which place an IPAddress inside the DNSName extension. Wildcards are only considered if the domain name consists of three components or more. The IPv4/v6 address comparison is since GnuTLS 3.2.16. .SH "RETURNS" non\-zero for a successful match, and zero on failure. .SH "REPORTING BUGS" Report bugs to <bugs@gnutls.org>. .br Home page: http://www.gnutls.org .SH COPYRIGHT Copyright \(co 2001-2014 Free Software Foundation, Inc. .br 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. .SH "SEE ALSO" The full documentation for .B gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit .B .IP http://www.gnutls.org/manual/ .PP
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4 entries across 4 versions & 1 rubygems