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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" X509_get_serialNumber, X509_get0_serialNumber, X509_set_serialNumber \&\- get or set certificate serial number .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/x509.h> \& \& ASN1_INTEGER *X509_get_serialNumber(X509 *x); \& const ASN1_INTEGER *X509_get0_serialNumber(const X509 *x); \& int X509_set_serialNumber(X509 *x, ASN1_INTEGER *serial); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fBX509_get_serialNumber()\fR returns the serial number of certificate \fBx\fR as an \&\fB\s-1ASN1_INTEGER\s0\fR structure which can be examined or initialised. The value returned is an internal pointer which \fB\s-1MUST NOT\s0\fR be freed up after the call. .PP \&\fBX509_get0_serialNumber()\fR is the same as \fBX509_get_serialNumber()\fR except it accepts a const parameter and returns a const result. .PP \&\fBX509_set_serialNumber()\fR sets the serial number of certificate \fBx\fR to \&\fBserial\fR. A copy of the serial number is used internally so \fBserial\fR should be freed up after use. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fBX509_get_serialNumber()\fR and \fBX509_get0_serialNumber()\fR return an \fB\s-1ASN1_INTEGER\s0\fR structure. .PP \&\fBX509_set_serialNumber()\fR returns 1 for success and 0 for failure. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBd2i_X509\fR\|(3), \&\fBERR_get_error\fR\|(3), \&\fBX509_CRL_get0_by_serial\fR\|(3), \&\fBX509_get0_signature\fR\|(3), \&\fBX509_get_ext_d2i\fR\|(3), \&\fBX509_get_extension_flags\fR\|(3), \&\fBX509_get_pubkey\fR\|(3), \&\fBX509_get_subject_name\fR\|(3), \&\fBX509_NAME_add_entry_by_txt\fR\|(3), \&\fBX509_NAME_ENTRY_get_object\fR\|(3), \&\fBX509_NAME_get_index_by_NID\fR\|(3), \&\fBX509_NAME_print_ex\fR\|(3), \&\fBX509_new\fR\|(3), \&\fBX509_sign\fR\|(3), \&\fBX509V3_get_d2i\fR\|(3), \&\fBX509_verify_cert\fR\|(3) .SH "HISTORY" .IX Header "HISTORY" The \fBX509_get_serialNumber()\fR and \fBX509_set_serialNumber()\fR functions are available in all versions of OpenSSL. The \fBX509_get0_serialNumber()\fR function was added in OpenSSL 1.1.0. .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.