From c4a78426bef17a0a7c81195c2b2399e7441f14ad Mon Sep 17 00:00:00 2001
From: "Simon L. B. Nielsen" <simon@FreeBSD.org>
Date: Sat, 23 Aug 2008 10:51:00 +0000
Subject: Flatten OpenSSL vendor tree.

---
 doc/crypto/BN_zero.pod | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 doc/crypto/BN_zero.pod

(limited to 'doc/crypto/BN_zero.pod')

diff --git a/doc/crypto/BN_zero.pod b/doc/crypto/BN_zero.pod
new file mode 100644
index 000000000000..b555ec398859
--- /dev/null
+++ b/doc/crypto/BN_zero.pod
@@ -0,0 +1,59 @@
+=pod
+
+=head1 NAME
+
+BN_zero, BN_one, BN_value_one, BN_set_word, BN_get_word - BIGNUM assignment
+operations
+
+=head1 SYNOPSIS
+
+ #include <openssl/bn.h>
+
+ int BN_zero(BIGNUM *a);
+ int BN_one(BIGNUM *a);
+
+ const BIGNUM *BN_value_one(void);
+
+ int BN_set_word(BIGNUM *a, unsigned long w);
+ unsigned long BN_get_word(BIGNUM *a);
+
+=head1 DESCRIPTION
+
+BN_zero(), BN_one() and BN_set_word() set B<a> to the values 0, 1 and
+B<w> respectively.  BN_zero() and BN_one() are macros.
+
+BN_value_one() returns a B<BIGNUM> constant of value 1. This constant
+is useful for use in comparisons and assignment.
+
+BN_get_word() returns B<a>, if it can be represented as an unsigned
+long.
+
+=head1 RETURN VALUES
+
+BN_get_word() returns the value B<a>, and 0xffffffffL if B<a> cannot
+be represented as an unsigned long.
+
+BN_zero(), BN_one() and BN_set_word() return 1 on success, 0 otherwise.
+BN_value_one() returns the constant.
+
+=head1 BUGS
+
+Someone might change the constant.
+
+If a B<BIGNUM> is equal to 0xffffffffL it can be represented as an
+unsigned long but this value is also returned on error.
+
+=head1 SEE ALSO
+
+L<bn(3)|bn(3)>, L<BN_bn2bin(3)|BN_bn2bin(3)>
+
+=head1 HISTORY
+
+BN_zero(), BN_one() and BN_set_word() are available in all versions of
+SSLeay and OpenSSL. BN_value_one() and BN_get_word() were added in
+SSLeay 0.8.
+
+BN_value_one() was changed to return a true const BIGNUM * in OpenSSL
+0.9.7.
+
+=cut
-- 
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