1 | #include <crypt.h>
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2 | #include "libc.h"
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3 |
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4 | struct crypt_data;
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5 |
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6 | char *__crypt_des(const char *, const char *, char *);
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7 | char *__crypt_md5(const char *, const char *, char *);
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8 | char *__crypt_blowfish(const char *, const char *, char *);
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9 | char *__crypt_sha256(const char *, const char *, char *);
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10 | char *__crypt_sha512(const char *, const char *, char *);
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11 |
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12 | char *__crypt_r(const char *key, const char *salt, struct crypt_data *data)
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13 | {
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14 | /* Per the crypt_r API, the caller has provided a pointer to
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15 | * struct crypt_data; however, this implementation does not
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16 | * use the structure to store any internal state, and treats
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17 | * it purely as a char buffer for storing the result. */
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18 | char *output = (char *)data;
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19 | if (salt[0] == '$' && salt[1] && salt[2]) {
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20 | if (salt[1] == '1' && salt[2] == '$')
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21 | return __crypt_md5(key, salt, output);
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22 | if (salt[1] == '2' && salt[3] == '$')
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23 | return __crypt_blowfish(key, salt, output);
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24 | if (salt[1] == '5' && salt[2] == '$')
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25 | return __crypt_sha256(key, salt, output);
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26 | if (salt[1] == '6' && salt[2] == '$')
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27 | return __crypt_sha512(key, salt, output);
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28 | }
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29 | return __crypt_des(key, salt, output);
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30 | }
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31 |
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32 | weak_alias(__crypt_r, crypt_r);
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