Write new d2i_ASN1_SEQUENCE_ANY(3) manual page from scratch.

All four functions are listed in <openssl/asn1.h>
and in OpenSSL doc/man3/d2i_X509.pod.

Note that in the OpenSSL documentation,
three of the four prototypes are incorrect.

2 files changed, 87 insertions, 1 deletions

diff --git a/lib/libcrypto/man/Makefile b/lib/libcrypto/man/Makefile
index c6443f3e3f4..0654dde9c06 100644
--- a/lib/libcrypto/man/Makefile
+++ b/lib/libcrypto/man/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.109 2016/12/29 17:42:54 schwarze Exp $
+# $OpenBSD: Makefile,v 1.110 2017/01/04 21:14:26 schwarze Exp $
 
 .include <bsd.own.mk>
 
@@ -229,6 +229,7 @@ MAN=	\
 	crypto.3 \
 	d2i_ASN1_NULL.3 \
 	d2i_ASN1_OBJECT.3 \
+	d2i_ASN1_SEQUENCE_ANY.3 \
 	d2i_AUTHORITY_KEYID.3 \
 	d2i_BASIC_CONSTRAINTS.3 \
 	d2i_DHparams.3 \
diff --git a/lib/libcrypto/man/d2i_ASN1_SEQUENCE_ANY.3 b/lib/libcrypto/man/d2i_ASN1_SEQUENCE_ANY.3
new file mode 100644
index 00000000000..f3ab6d98b5a
--- /dev/null
+++ b/lib/libcrypto/man/d2i_ASN1_SEQUENCE_ANY.3
@@ -0,0 +1,85 @@
+.\"	$OpenBSD: d2i_ASN1_SEQUENCE_ANY.3,v 1.1 2017/01/04 21:14:26 schwarze Exp $
+.\"
+.\" Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: January 4 2017 $
+.Dt D2I_ASN1_SEQUENCE_ANY 3
+.Os
+.Sh NAME
+.Nm d2i_ASN1_SEQUENCE_ANY ,
+.Nm i2d_ASN1_SEQUENCE_ANY ,
+.Nm d2i_ASN1_SET_ANY ,
+.Nm i2d_ASN1_SET_ANY
+.Nd decode and encode ASN.1 sequences and sets
+.Sh SYNOPSIS
+.In openssl/asn1.h
+.Ft ASN1_SEQUENCE_ANY *
+.Fo d2i_ASN1_SEQUENCE_ANY
+.Fa "ASN1_SEQUENCE_ANY **val_out"
+.Fa "const unsigned char **der_in"
+.Fa "long length"
+.Fc
+.Ft int
+.Fo i2d_ASN1_SEQUENCE_ANY
+.Fa "const ASN1_SEQUENCE_ANY *val_in"
+.Fa "unsigned char **der_out"
+.Fc
+.Ft ASN1_SEQUENCE_ANY *
+.Fo d2i_ASN1_SET_ANY
+.Fa "ASN1_SEQUENCE_ANY **val_out"
+.Fa "const unsigned char **der_in"
+.Fa "long length"
+.Fc
+.Ft int
+.Fo i2d_ASN1_SET_ANY
+.Fa "const ASN1_SEQUENCE_ANY *val_in"
+.Fa "unsigned char **der_out"
+.Fc
+.Sh DESCRIPTION
+These functions decode and encode ASN.1 sequences and sets.
+For details about the semantics, examples, caveats, and bugs, see
+.Xr ASN1_item_d2i 3 .
+.Pp
+The type
+.Vt ASN1_SEQUENCE_ANY
+is defined as
+.Vt STACK_OF(ASN1_TYPE) .
+Whether such an object represents a sequence or a set is not stored
+in the object itself but needs to be remembered separately.
+.Pp
+Like for
+.Xr d2i_ASN1_TYPE 3
+and
+.Xr i2d_ASN1_TYPE 3 ,
+the type of the individual values contained in the sequence or set
+is not specified when calling the functions.
+It might vary among the members, and it is stored together with
+each value in each
+.Vt ASN1_TYPE
+object contained in the sequence or set.
+.Sh RETURN VALUES
+.Fn d2i_ASN1_SEQUENCE_ANY
+returns an
+.Vt ASN1_SEQUENCE_ANY
+object or
+.Dv NULL
+if an error occurs.
+.Pp
+.Fn i2d_ASN1_SEQUENCE_ANY
+returns the number of bytes written or a negative value if an error
+occurs.
+.Sh SEE ALSO
+.Xr ASN1_item_d2i 3 ,
+.Xr ASN1_TYPE_new 3