mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
efba0b1df5
New version of PAM plugin (v2.0) added along with the old v1.0. There the pam module is isolated in the auth_pam_tool application so cannot crash the server.
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/*
|
|
Copyright (c) 2011, 2018 MariaDB Corporation
|
|
|
|
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 Street, Fifth Floor, Boston, MA 02111-1301 USA */
|
|
|
|
/*
|
|
This file contains definitions and functions for
|
|
the interface between the auth_pam.so (PAM plugin version 2)
|
|
and the auth_pam_tool executable.
|
|
To be included both in auth_pam.c and auth_pam_tool.c.
|
|
*/
|
|
|
|
#define AP_AUTHENTICATED_AS 'A'
|
|
#define AP_CONV 'C'
|
|
#define AP_EOF 'E'
|
|
|
|
|
|
static int read_length(int file)
|
|
{
|
|
unsigned char hdr[2];
|
|
|
|
if (read(file, hdr, 2) < 2)
|
|
return -1;
|
|
|
|
return (((int) hdr[0]) << 8) + (int) hdr[1];
|
|
}
|
|
|
|
|
|
static void store_length(int len, unsigned char *p_len)
|
|
{
|
|
p_len[0]= (unsigned char) ((len >> 8) & 0xFF);
|
|
p_len[1]= (unsigned char) (len & 0xFF);
|
|
}
|
|
|
|
|
|
/*
|
|
Returns the length of the string read,
|
|
or -1 on error.
|
|
*/
|
|
|
|
static int read_string(int file, char *s, int s_size)
|
|
{
|
|
int len;
|
|
|
|
len= read_length(file);
|
|
|
|
if (len < 0 || len > s_size-1 ||
|
|
read(file, s, len) < len)
|
|
return -1;
|
|
|
|
s[len]= 0;
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
/*
|
|
Returns 0 on success.
|
|
*/
|
|
|
|
static int write_string(int file, const unsigned char *s, int s_len)
|
|
{
|
|
unsigned char hdr[2];
|
|
store_length(s_len, hdr);
|
|
return write(file, hdr, 2) < 2 ||
|
|
write(file, s, s_len) < s_len;
|
|
}
|
|
|
|
|
|
#define MAX_PAM_SERVICE_NAME 1024
|