X509_FIND_BY_SUBJECT(3)    Library Functions Manual    X509_FIND_BY_SUBJECT(3)

NAME
     X509_find_by_subject, X509_find_by_issuer_and_serial - search an array of
     X.509 certificates

SYNOPSIS
     #include <openssl/x509.h>

     X509 *
     X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *subject);

     X509 *
     X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *issuer,
         ASN1_INTEGER *serial);

DESCRIPTION
     X509_find_by_subject() searches the variable-sized array sk for a
     certificate with a matching subject name.

     X509_find_by_issuer_and_serial() searches the array for a certificate
     where both the issuer name and the serial number match the arguments.

RETURN VALUES
     These functions return a pointer to the first matching certificate or
     NULL if sk is NULL or does not contain a matching certificate.

SEE ALSO
     ASN1_INTEGER_new(3), STACK_OF(3), X509_cmp(3), X509_get_serialNumber(3),
     X509_get_subject_name(3), X509_NAME_new(3), X509_new(3)

HISTORY
     These functions first appeared in SSLeay 0.8.1 and have been available
     since OpenBSD 2.4.

Linux 6.8.2-arch2-1              July 4, 2021              Linux 6.8.2-arch2-1