crypt_r.c raw

   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);
  24