diff options
| -rw-r--r-- | libcrypt/crypt.c | 43 |
1 files changed, 13 insertions, 30 deletions
diff --git a/libcrypt/crypt.c b/libcrypt/crypt.c index 188a6a081..e5274a589 100644 --- a/libcrypt/crypt.c +++ b/libcrypt/crypt.c @@ -6,43 +6,26 @@ */ #define __FORCE_GLIBC -#include <crypt.h> #include <unistd.h> -#include <string.h> -#include <errno.h> +#include <crypt.h> #include "libcrypt.h" -typedef char *(*crypt_impl_f)(const unsigned char *pw, const unsigned char *salt); - -static const struct { - const char *salt_pfx; - const crypt_impl_f crypt_impl; -} crypt_impl_tab[] = { - { "$1$", __md5_crypt }, -#ifdef __UCLIBC_HAS_SHA256_CRYPT_IMPL__ - { "$5$", __sha256_crypt }, -#endif -#ifdef __UCLIBC_HAS_SHA512_CRYPT_IMPL__ - { "$6$", __sha512_crypt }, -#endif - { NULL, __des_crypt }, -}; - char *crypt(const char *key, const char *salt) { const unsigned char *ukey = (const unsigned char *)key; const unsigned char *usalt = (const unsigned char *)salt; - size_t i; - - for (i = 0; i < ARRAY_SIZE(crypt_impl_tab); i++) { - if (crypt_impl_tab[i].salt_pfx != NULL && - strncmp(crypt_impl_tab[i].salt_pfx, salt, strlen(crypt_impl_tab[i].salt_pfx))) - continue; - return crypt_impl_tab[i].crypt_impl(ukey, usalt); + if (salt[0] == '$' && salt[2] == '$') { + if (*++salt == '1') + return __md5_crypt(ukey, usalt); +#ifdef __UCLIBC_HAS_SHA256_CRYPT_IMPL__ + else if (*salt == '5') + return __sha256_crypt(ukey, usalt); +#endif +#ifdef __UCLIBC_HAS_SHA512_CRYPT_IMPL__ + else if (*salt == '6') + return __sha512_crypt(ukey, usalt); +#endif } - - /* no crypt implementation was found, set errno to ENOSYS and return NULL */ - __set_errno(ENOSYS); - return NULL; + return __des_crypt(ukey, usalt); } |