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Title "OSSL_CMP_ITAV_SET0 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
OSSL_CMP_ITAV_create, OSSL_CMP_ITAV_set0, OSSL_CMP_ITAV_get0_type, OSSL_CMP_ITAV_get0_value, OSSL_CMP_ITAV_push0_stack_item \- OSSL_CMP_ITAV utility functions Header "SYNOPSIS" .Vb 6 #include <openssl/cmp.h> OSSL_CMP_ITAV *OSSL_CMP_ITAV_create(ASN1_OBJECT *type, ASN1_TYPE *value); void OSSL_CMP_ITAV_set0(OSSL_CMP_ITAV *itav, ASN1_OBJECT *type, ASN1_TYPE *value); ASN1_OBJECT *OSSL_CMP_ITAV_get0_type(const OSSL_CMP_ITAV *itav); ASN1_TYPE *OSSL_CMP_ITAV_get0_value(const OSSL_CMP_ITAV *itav); \& int OSSL_CMP_ITAV_push0_stack_item(STACK_OF(OSSL_CMP_ITAV) **itav_sk_p, OSSL_CMP_ITAV *itav); .Ve Header "DESCRIPTION" Certificate Management Protocol (\s-1CMP, RFC 4210\s0) extension to OpenSSL

\s-1ITAV\s0 is short for InfoTypeAndValue. This type is defined in \s-1RFC 4210\s0 section 5.3.19 and Appendix F. It is used at various places in \s-1CMP\s0 messages, e.g., in the generalInfo PKIHeader field, to hold a key-value pair.

\fBOSSL_CMP_ITAV_create() creates a new \s-1OSSL_CMP_ITAV\s0 structure and fills it in. It combines OSSL_CMP_ITAV_new() and OSSL_CMP_ITAV_set0().

\fBOSSL_CMP_ITAV_set0() sets the itav with an infoType of type and an infoValue of value. This function uses the pointers type and value internally, so they must not be freed up after the call.

\fBOSSL_CMP_ITAV_get0_type() returns a direct pointer to the infoType in the \fIitav.

\fBOSSL_CMP_ITAV_get0_value() returns a direct pointer to the infoValue in the itav as generic \s-1ASN1_TYPE\s0 pointer.

\fBOSSL_CMP_ITAV_push0_stack_item() pushes itav to the stack pointed to by *itav_sk_p. It creates a new stack if *itav_sk_p points to \s-1NULL.\s0

Header "NOTES" \s-1CMP\s0 is defined in \s-1RFC 4210\s0 (and \s-1CRMF\s0 in \s-1RFC 4211\s0). Header "RETURN VALUES" \fBOSSL_CMP_ITAV_create() returns a pointer to the \s-1ITAV\s0 structure on success, or \s-1NULL\s0 on error.

\fBOSSL_CMP_ITAV_set0() does not return a value.

\fBOSSL_CMP_ITAV_get0_type() and OSSL_CMP_ITAV_get0_value() return the respective pointer or \s-1NULL\s0 if their input is \s-1NULL.\s0

\fBOSSL_CMP_ITAV_push0_stack_item() returns 1 on success, 0 on error.

Header "EXAMPLES" The following code creates and sets a structure representing a generic InfoTypeAndValue sequence, using an \s-1OID\s0 created from text as type, and an integer as value. Afterwards, it is pushed to the \s-1OSSL_CMP_CTX\s0 to be later included in the requests' PKIHeader's genInfo field.

.Vb 2 ASN1_OBJECT *type = OBJ_txt2obj("1.2.3.4.5", 1); if (type == NULL) ... \& ASN1_INTEGER *asn1int = ASN1_INTEGER_new(); if (asn1int == NULL || !ASN1_INTEGER_set(asn1int, 12345)) ... \& ASN1_TYPE *val = ASN1_TYPE_new(); if (val == NULL) ... ASN1_TYPE_set(val, V_ASN1_INTEGER, asn1int); \& OSSL_CMP_ITAV *itav = OSSL_CMP_ITAV_create(type, val); if (itav == NULL) ... \& OSSL_CMP_CTX *ctx = OSSL_CMP_CTX_new(); if (ctx == NULL || !OSSL_CMP_CTX_geninfo_push0_ITAV(ctx, itav)) { OSSL_CMP_ITAV_free(itav); /* also frees type and val */ goto err; } \& ... \& OSSL_CMP_CTX_free(ctx); /* also frees itav */ .Ve

Header "SEE ALSO" \fBOSSL_CMP_CTX_new\|(3), OSSL_CMP_CTX_free\|(3), ASN1_TYPE_set\|(3) Header "HISTORY" The OpenSSL \s-1CMP\s0 support was added in OpenSSL 3.0. Header "COPYRIGHT" Copyright 2007-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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>.