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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2012
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*
* @file env.c
* @brief User environment handling code
* @author Jay Sorg
*
*/
#include "sesman.h"
#include "sys/types.h"
#include "grp.h"
extern unsigned char g_fixedkey[8]; /* in sesman.c */
extern struct config_sesman *g_cfg; /* in sesman.c */
/******************************************************************************/
int DEFAULT_CC
env_check_password_file(char *filename, char *password)
{
char encryptedPasswd[16];
int fd;
g_memset(encryptedPasswd, 0, 16);
g_strncpy(encryptedPasswd, password, 8);
rfbDesKey(g_fixedkey, 0);
rfbDes((unsigned char *)encryptedPasswd, (unsigned char *)encryptedPasswd);
fd = g_file_open(filename);
if (fd == -1)
{
log_message(LOG_LEVEL_WARNING,
"can't read vnc password file - %s",
filename);
return 1;
}
g_file_write(fd, encryptedPasswd, 8);
g_file_close(fd);
return 0;
}
/******************************************************************************/
int DEFAULT_CC
env_set_user(char *username, char *passwd_file, int display)
{
int error;
int pw_uid;
int pw_gid;
int uid;
char pw_shell[256];
char pw_dir[256];
char pw_gecos[256];
char text[256];
error = g_getuser_info(username, &pw_gid, &pw_uid, pw_shell, pw_dir,
pw_gecos);
if (error == 0)
{
g_rm_temp_dir();
error = g_setgid(pw_gid);
if (error == 0)
{
error = g_initgroups(username, pw_gid);
}
if (error == 0)
{
uid = pw_uid;
error = g_setuid(uid);
}
g_mk_temp_dir(0);
if (error == 0)
{
g_clearenv();
g_setenv("SHELL", pw_shell, 1);
g_setenv("PATH", "/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin", 1);
g_setenv("USER", username, 1);
g_sprintf(text, "%d", uid);
g_setenv("UID", text, 1);
g_setenv("HOME", pw_dir, 1);
g_set_current_dir(pw_dir);
g_sprintf(text, ":%d.0", display);
g_setenv("DISPLAY", text, 1);
if (passwd_file != 0)
{
if (0 == g_cfg->auth_file_path)
{
/* if no auth_file_path is set, then we go for
$HOME/.vnc/sesman_username_passwd */
g_mkdir(".vnc");
g_sprintf(passwd_file, "%s/.vnc/sesman_%s_passwd", pw_dir, username);
}
else
{
/* we use auth_file_path as requested */
g_sprintf(passwd_file, g_cfg->auth_file_path, username);
}
LOG_DBG("pass file: %s", passwd_file);
}
}
}
else
{
log_message(LOG_LEVEL_ERROR,
"error getting user info for user %s", username);
}
return error;
}
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