文件操作 - ASN1_STRING_TABLE_add.pod
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文件: /usr/local/src/openssl-1.1.1w/doc/man3/ASN1_STRING_TABLE_add.pod
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=pod =head1 NAME ASN1_STRING_TABLE, ASN1_STRING_TABLE_add, ASN1_STRING_TABLE_get, ASN1_STRING_TABLE_cleanup - ASN1_STRING_TABLE manipulation functions =head1 SYNOPSIS #include <openssl/asn1.h> typedef struct asn1_string_table_st ASN1_STRING_TABLE; int ASN1_STRING_TABLE_add(int nid, long minsize, long maxsize, unsigned long mask, unsigned long flags); ASN1_STRING_TABLE * ASN1_STRING_TABLE_get(int nid); void ASN1_STRING_TABLE_cleanup(void); =head1 DESCRIPTION =head2 Types B<ASN1_STRING_TABLE> is a table which holds string information (basically minimum size, maximum size, type and etc) for a NID object. =head2 Functions ASN1_STRING_TABLE_add() adds a new B<ASN1_STRING_TABLE> item into the local ASN1 string table based on the B<nid> along with other parameters. If the item is already in the table, fields of B<ASN1_STRING_TABLE> are updated (depending on the values of those parameters, e.g., B<minsize> and B<maxsize> >= 0, B<mask> and B<flags> != 0). If the B<nid> is standard, a copy of the standard B<ASN1_STRING_TABLE> is created and updated with other parameters. ASN1_STRING_TABLE_get() searches for an B<ASN1_STRING_TABLE> item based on B<nid>. It will search the local table first, then the standard one. ASN1_STRING_TABLE_cleanup() frees all B<ASN1_STRING_TABLE> items added by ASN1_STRING_TABLE_add(). =head1 RETURN VALUES ASN1_STRING_TABLE_add() returns 1 on success, 0 if an error occurred. ASN1_STRING_TABLE_get() returns a valid B<ASN1_STRING_TABLE> structure or B<NULL> if nothing is found. ASN1_STRING_TABLE_cleanup() does not return a value. =head1 SEE ALSO L<ERR_get_error(3)> =head1 COPYRIGHT Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at L<https://www.openssl.org/source/license.html>. =cut
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