f4401cd869
alter des.h to be friendly with openssl/des.h (you can include both in the same file) make libkrb to depend on libdes. bump major. massage various portioin of heimdal to be friendly with openssl 0.9.7b.
189 lines
5.3 KiB
Groff
189 lines
5.3 KiB
Groff
.\" $NetBSD: BN_cmp.3,v 1.12 2003/07/24 14:16:37 itojun Exp $
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.\" ======================================================================
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.\"
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.IX Title "BN_cmp 3"
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.TH BN_cmp 3 "0.9.7b" "2000-01-27" "OpenSSL"
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.UC
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.SH "NAME"
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BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_is_odd \- \s-1BIGNUM\s0 comparison and test functions
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.SH "LIBRARY"
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libcrypto, -lcrypto
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/bn.h>
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.Ve
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.Vb 2
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\& int BN_cmp(BIGNUM *a, BIGNUM *b);
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\& int BN_ucmp(BIGNUM *a, BIGNUM *b);
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.Ve
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.Vb 4
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\& int BN_is_zero(BIGNUM *a);
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\& int BN_is_one(BIGNUM *a);
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\& int BN_is_word(BIGNUM *a, BN_ULONG w);
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\& int BN_is_odd(BIGNUM *a);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fIBN_cmp()\fR compares the numbers \fBa\fR and \fBb\fR. \fIBN_ucmp()\fR compares their
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absolute values.
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.PP
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\&\fIBN_is_zero()\fR, \fIBN_is_one()\fR and \fIBN_is_word()\fR test if \fBa\fR equals 0, 1,
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or \fBw\fR respectively. \fIBN_is_odd()\fR tests if a is odd.
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.PP
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\&\fIBN_is_zero()\fR, \fIBN_is_one()\fR, \fIBN_is_word()\fR and \fIBN_is_odd()\fR are macros.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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\&\fIBN_cmp()\fR returns \-1 if \fBa\fR < \fBb\fR, 0 if \fBa\fR == \fBb\fR and 1 if
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\&\fBa\fR > \fBb\fR. \fIBN_ucmp()\fR is the same using the absolute values
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of \fBa\fR and \fBb\fR.
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.PP
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\&\fIBN_is_zero()\fR, \fIBN_is_one()\fR \fIBN_is_word()\fR and \fIBN_is_odd()\fR return 1 if
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the condition is true, 0 otherwise.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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openssl_bn(3)
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.SH "HISTORY"
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.IX Header "HISTORY"
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\&\fIBN_cmp()\fR, \fIBN_ucmp()\fR, \fIBN_is_zero()\fR, \fIBN_is_one()\fR and \fIBN_is_word()\fR are
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available in all versions of SSLeay and OpenSSL.
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\&\fIBN_is_odd()\fR was added in SSLeay 0.8.
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