D2I_X509_REQ(3)

NAME
d2i_X509_REQ, i2d_X509_REQ, d2i_X509_REQ_bio, d2i_X509_REQ_fp, i2d_X509_REQ_bio, i2d_X509_REQ_fp, d2i_X509_REQ_INFO, i2d_X509_REQ_INFO - decode and encode PKCS#10 certification requests

SYNOPSIS
#include <openssl/x509.h>
X509_REQ *
d2i_X509_REQ(X509_REQ **val_out, const unsigned char **der_in, long length);
int
i2d_X509_REQ(X509_REQ *val_in, unsigned char **der_out);
X509_REQ *
d2i_X509_REQ_bio(BIO *in_bio, X509_REQ **val_out);
X509_REQ *
d2i_X509_REQ_fp(FILE *in_fp, X509_REQ **val_out);
int
i2d_X509_REQ_bio(BIO *out_bio, X509_REQ *val_in);
int
i2d_X509_REQ_fp(FILE *out_fp, X509_REQ *val_in);
X509_REQ_INFO *
d2i_X509_REQ_INFO(X509_REQ_INFO **val_out, const unsigned char **der_in, long length);
int
i2d_X509_REQ_INFO(X509_REQ_INFO *val_in, unsigned char **der_out);

DESCRIPTION
These functions decode and encode PKCS#10 certification requests. For details about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3).

d2i_X509_REQ() and i2d_X509_REQ() decode and encode an ASN.1 CertificationRequest structure defined in RFC 2986 section 4.2. d2i_X509_REQ_bio(), d2i_X509_REQ_fp(), i2d_X509_REQ_bio(), and i2d_X509_REQ_fp() are similar except that they decode or encode using a BIO or FILE pointer.

d2i_X509_REQ_INFO() and i2d_X509_REQ_INFO() decode and encode an ASN.1 CertificationRequestInfo structure defined in RFC 2986 section 4.1.

RETURN VALUES
d2i_X509_REQ(), d2i_X509_REQ_bio(), and d2i_X509_REQ_fp() return an X509_REQ object or NULL if an error occurs.

d2i_X509_REQ_INFO() returns an X509_REQ_INFO object or NULL if an error occurs.

i2d_X509_REQ() and i2d_X509_REQ_INFO() return the number of bytes successfully encoded or a negative value if an error occurs.

i2d_X509_REQ_bio() and i2d_X509_REQ_fp() return 1 for success or 0 if an error occurs.

SEE ALSO
ASN1_item_d2i(3), PEM_read_X509_REQ(3), X509_REQ_new(3)

STANDARDS
RFC 2986: PKCS #10: Certification Request Syntax Specification

HISTORY
d2i_X509_REQ(), i2d_X509_REQ(), d2i_X509_REQ_fp(), i2d_X509_REQ_fp(), d2i_X509_REQ_INFO(), and i2d_X509_REQ_INFO() first appeared in SSLeay 0.5.1. d2i_X509_REQ_bio() and i2d_X509_REQ_bio() first appeared in SSLeay 0.6.0. These functions have been available since OpenBSD 2.4.