src/crypt/crypt_r.c

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