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Diffstat (limited to 'src/lib/libcrypto/man/BN_CTX_new.3')
| -rw-r--r-- | src/lib/libcrypto/man/BN_CTX_new.3 | 123 |
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diff --git a/src/lib/libcrypto/man/BN_CTX_new.3 b/src/lib/libcrypto/man/BN_CTX_new.3 deleted file mode 100644 index 336b918896..0000000000 --- a/src/lib/libcrypto/man/BN_CTX_new.3 +++ /dev/null | |||
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| 1 | .\" $OpenBSD: BN_CTX_new.3,v 1.10 2023/04/25 17:21:51 tb Exp $ | ||
| 2 | .\" OpenSSL aafbe1cc Jun 12 23:42:08 2013 +0100 | ||
| 3 | .\" | ||
| 4 | .\" This file was written by Ulf Moeller <ulf@openssl.org>. | ||
| 5 | .\" Copyright (c) 2000, 2013 The OpenSSL Project. All rights reserved. | ||
| 6 | .\" | ||
| 7 | .\" Redistribution and use in source and binary forms, with or without | ||
| 8 | .\" modification, are permitted provided that the following conditions | ||
| 9 | .\" are met: | ||
| 10 | .\" | ||
| 11 | .\" 1. Redistributions of source code must retain the above copyright | ||
| 12 | .\" notice, this list of conditions and the following disclaimer. | ||
| 13 | .\" | ||
| 14 | .\" 2. Redistributions in binary form must reproduce the above copyright | ||
| 15 | .\" notice, this list of conditions and the following disclaimer in | ||
| 16 | .\" the documentation and/or other materials provided with the | ||
| 17 | .\" distribution. | ||
| 18 | .\" | ||
| 19 | .\" 3. All advertising materials mentioning features or use of this | ||
| 20 | .\" software must display the following acknowledgment: | ||
| 21 | .\" "This product includes software developed by the OpenSSL Project | ||
| 22 | .\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 23 | .\" | ||
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| 25 | .\" endorse or promote products derived from this software without | ||
| 26 | .\" prior written permission. For written permission, please contact | ||
| 27 | .\" openssl-core@openssl.org. | ||
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| 29 | .\" 5. Products derived from this software may not be called "OpenSSL" | ||
| 30 | .\" nor may "OpenSSL" appear in their names without prior written | ||
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| 33 | .\" 6. Redistributions of any form whatsoever must retain the following | ||
| 34 | .\" acknowledgment: | ||
| 35 | .\" "This product includes software developed by the OpenSSL Project | ||
| 36 | .\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
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| 38 | .\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 39 | .\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
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| 46 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 47 | .\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 48 | .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
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| 50 | .\" | ||
| 51 | .Dd $Mdocdate: April 25 2023 $ | ||
| 52 | .Dt BN_CTX_NEW 3 | ||
| 53 | .Os | ||
| 54 | .Sh NAME | ||
| 55 | .Nm BN_CTX_new , | ||
| 56 | .Nm BN_CTX_free | ||
| 57 | .Nd allocate and free BN_CTX structures | ||
| 58 | .Sh SYNOPSIS | ||
| 59 | .In openssl/bn.h | ||
| 60 | .Ft BN_CTX * | ||
| 61 | .Fo BN_CTX_new | ||
| 62 | .Fa void | ||
| 63 | .Fc | ||
| 64 | .Ft void | ||
| 65 | .Fo BN_CTX_free | ||
| 66 | .Fa "BN_CTX *c" | ||
| 67 | .Fc | ||
| 68 | .Sh DESCRIPTION | ||
| 69 | A | ||
| 70 | .Vt BN_CTX | ||
| 71 | is a structure that holds | ||
| 72 | .Vt BIGNUM | ||
| 73 | temporary variables used by library functions. | ||
| 74 | Since dynamic memory allocation to create | ||
| 75 | .Vt BIGNUM Ns s | ||
| 76 | is rather expensive when used in conjunction with repeated subroutine | ||
| 77 | calls, the | ||
| 78 | .Vt BN_CTX | ||
| 79 | structure is used. | ||
| 80 | .Pp | ||
| 81 | .Fn BN_CTX_new | ||
| 82 | allocates and initializes a | ||
| 83 | .Vt BN_CTX | ||
| 84 | structure. | ||
| 85 | .Pp | ||
| 86 | .Fn BN_CTX_free | ||
| 87 | frees the components of the | ||
| 88 | .Vt BN_CTX | ||
| 89 | and, if it was created by | ||
| 90 | .Fn BN_CTX_new , | ||
| 91 | also the structure itself. | ||
| 92 | If | ||
| 93 | .Xr BN_CTX_start 3 | ||
| 94 | has been used on the | ||
| 95 | .Vt BN_CTX , | ||
| 96 | .Xr BN_CTX_end 3 | ||
| 97 | must be called before the | ||
| 98 | .Vt BN_CTX | ||
| 99 | may be freed by | ||
| 100 | .Fn BN_CTX_free . | ||
| 101 | If | ||
| 102 | .Fa c | ||
| 103 | is a | ||
| 104 | .Dv NULL | ||
| 105 | pointer, no action occurs. | ||
| 106 | .Sh RETURN VALUES | ||
| 107 | .Fn BN_CTX_new | ||
| 108 | returns a pointer to the | ||
| 109 | .Vt BN_CTX . | ||
| 110 | If the allocation fails, it returns | ||
| 111 | .Dv NULL | ||
| 112 | and sets an error code that can be obtained by | ||
| 113 | .Xr ERR_get_error 3 . | ||
| 114 | .Sh SEE ALSO | ||
| 115 | .Xr BN_add 3 , | ||
| 116 | .Xr BN_CTX_start 3 , | ||
| 117 | .Xr BN_new 3 | ||
| 118 | .Sh HISTORY | ||
| 119 | .Fn BN_CTX_new | ||
| 120 | and | ||
| 121 | .Fn BN_CTX_free | ||
| 122 | first appeared in SSLeay 0.5.1 and have been available since | ||
| 123 | .Ox 2.4 . | ||