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5f521d7ba7
glibc has a pretty nice function called crypt_r(3), which is nothing more than crypt(3), but thread-safe. It accomplishes this by introducing a 'struct crypt_data' structure that contains a buffer that is large enough to hold the resulting string. Let's go ahead and also add this function. It would be a shame if a useful function like this wouldn't be usable in multithreaded apps. Refactor crypt.c and all of the backends to no longer declare static arrays, but write their output in a provided buffer. There is no need to do any buffer length computation here, as we'll just need to ensure that 'struct crypt_data' is large enough, which it is. _PASSWORD_LEN is defined to 128 bytes, but in this case I'm picking 256, as this is going to be part of the actual ABI. Differential Revision: https://reviews.freebsd.org/D7306
44 lines
1.9 KiB
C
44 lines
1.9 KiB
C
/* LINTLIBRARY */
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/*
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* Copyright (c) 1999
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* Mark Murray. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY MARK MURRAY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL MARK MURRAY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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/* magic sizes */
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#define MD4_SIZE 16
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#define MD5_SIZE 16
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int crypt_des(const char *pw, const char *salt, char *buf);
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int crypt_md5(const char *pw, const char *salt, char *buf);
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int crypt_nthash(const char *pw, const char *salt, char *buf);
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int crypt_blowfish(const char *pw, const char *salt, char *buf);
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int crypt_sha256 (const char *pw, const char *salt, char *buf);
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int crypt_sha512 (const char *pw, const char *salt, char *buf);
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extern void _crypt_to64(char *s, u_long v, int n);
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extern void b64_from_24bit(uint8_t B2, uint8_t B1, uint8_t B0, int n, char **cp);
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