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70 lines
3.8 KiB
C
70 lines
3.8 KiB
C
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/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
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│vi: set et ft=c ts=8 tw=8 fenc=utf-8 :vi│
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╚──────────────────────────────────────────────────────────────────────────────╝
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│ │
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│ Musl Libc │
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│ Copyright © 2005-2014 Rich Felker, et al. │
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│ │
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│ Permission is hereby granted, free of charge, to any person obtaining │
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│ a copy of this software and associated documentation files (the │
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│ "Software"), to deal in the Software without restriction, including │
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│ without limitation the rights to use, copy, modify, merge, publish, │
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│ distribute, sublicense, and/or sell copies of the Software, and to │
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│ permit persons to whom the Software is furnished to do so, subject to │
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│ the following conditions: │
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│ │
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│ The above copyright notice and this permission notice shall be │
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│ included in all copies or substantial portions of the Software. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
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│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
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│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
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│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
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│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
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│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
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│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
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│ │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "third_party/musl/crypt.h"
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#include "third_party/musl/crypt.internal.h"
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asm(".ident\t\"\\n\\n\
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Musl libc (MIT License)\\n\
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Copyright 2005-2014 Rich Felker, et. al.\"");
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asm(".include \"libc/disclaimer.inc\"");
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// clang-format off
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/**
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* Encrypts password the old fashioned way.
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*
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* The method of encryption depends on the first three chars of salt:
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*
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* - `$1$` is MD5
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* - `$2$` is Blowfish
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* - `$5$` is SHA-256
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* - `$6$` is SHA-512
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* - Otherwise DES
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*
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* @return static memory with encrypted password
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* @see third_party/argon2/
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*/
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char *crypt_r(const char *key, const char *salt, struct crypt_data *data)
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{
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/* Per the crypt_r API, the caller has provided a pointer to
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* struct crypt_data; however, this implementation does not
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* use the structure to store any internal state, and treats
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* it purely as a char buffer for storing the result. */
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char *output = (char *)data;
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if (salt[0] == '$' && salt[1] && salt[2]) {
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if (salt[1] == '1' && salt[2] == '$')
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return __crypt_md5(key, salt, output);
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if (salt[1] == '2' && salt[3] == '$')
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return __crypt_blowfish(key, salt, output);
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if (salt[1] == '5' && salt[2] == '$')
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return __crypt_sha256(key, salt, output);
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if (salt[1] == '6' && salt[2] == '$')
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return __crypt_sha512(key, salt, output);
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}
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return __crypt_des(key, salt, output);
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}
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