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/* Copyright (c) 2006-2008 MySQL AB, 2009 Sun Microsystems, Inc.
Use is subject to license terms.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#include <my_user.h>
#include <m_string.h>
#include <mysql_com.h>
/*
Parse user value to user name and host name parts.
SYNOPSIS
user_id_str [IN] User value string (the source).
user_id_len [IN] Length of the user value.
user_name_str [OUT] Buffer to store user name part.
Must be not less than USERNAME_LENGTH + 1.
user_name_len [OUT] A place to store length of the user name part.
host_name_str [OUT] Buffer to store host name part.
Must be not less than HOSTNAME_LENGTH + 1.
host_name_len [OUT] A place to store length of the host name part.
RETURN
0 - if only a user was set, no '@' was found
1 - if both user and host were set
*/
int parse_user(const char *user_id_str, size_t user_id_len,
char *user_name_str, size_t *user_name_len,
char *host_name_str, size_t *host_name_len)
{
char *p= strrchr(user_id_str, '@');
if (!p)
{
*user_name_len= user_id_len;
*host_name_len= 0;
}
else
{
*user_name_len= (uint) (p - user_id_str);
*host_name_len= (uint) (user_id_len - *user_name_len - 1);
}
if (*user_name_len > USERNAME_LENGTH)
*user_name_len= USERNAME_LENGTH;
if (*host_name_len > HOSTNAME_LENGTH)
*host_name_len= HOSTNAME_LENGTH;
memcpy(user_name_str, user_id_str, *user_name_len);
memcpy(host_name_str, p + 1, *host_name_len);
user_name_str[*user_name_len]= 0;
host_name_str[*host_name_len]= 0;
return p != NULL;
}
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