void g_init(const char *app_name)
{
#if defined(_WIN32)
WSADATA wsadata;
WSAStartup(2, &wsadata);
#endif
setlocale(LC_CTYPE, "");
g_mk_temp_dir(app_name);
}
/* does not work in win32 */
int g_execlp3(const char *a1, const char *a2, const char *a3)
{
#if defined(_WIN32)
return 0;
#else
int rv;
g_rm_temp_dir();
rv = execlp(a1, a2, a3, (void *) 0);
g_mk_temp_dir(0);
return rv;
#endif
}
/* does not work in win32 */
int g_execvp(const char *p1, char *args[])
{
#if defined(_WIN32)
return 0;
#else
int rv;
g_rm_temp_dir();
rv = execvp(p1, args);
g_mk_temp_dir(0);
return rv;
#endif
}
/* does not work in win32 */
int g_fork(void)
{
#if defined(_WIN32)
return 0;
#else
int rv;
rv = fork();
if (rv == 0) /* child */
{
g_mk_temp_dir(0);
}
return rv;
#endif
}
/* its the responsibility of the caller to free passwd_file */
int DEFAULT_CC
env_set_user(const char *username, char **passwd_file, int display,
const struct list *env_names, const struct list *env_values)
{
int error;
int pw_uid;
int pw_gid;
int uid;
int index;
int len;
char *name;
char *value;
char *pw_shell;
char *pw_dir;
char text[256];
pw_shell = 0;
pw_dir = 0;
error = g_getuser_info(username, &pw_gid, &pw_uid, &pw_shell, &pw_dir, 0);
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", "/sbin:/bin:/usr/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);
g_setenv("XRDP_SESSION", "1", 1);
if ((env_names != 0) && (env_values != 0) &&
(env_names->count == env_values->count))
{
for (index = 0; index < env_names->count; index++)
{
name = (char *) list_get_item(env_names, index),
value = (char *) list_get_item(env_values, index),
g_setenv(name, value, 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:DISPLAY */
if (!g_directory_exist(".vnc"))
{
if (g_mkdir(".vnc") < 0)
{
log_message(LOG_LEVEL_ERROR,
"Error creating .vnc directory: %s",
g_get_strerror());
}
}
len = g_snprintf(NULL, 0, "%s/.vnc/sesman_%s_passwd:%d",
pw_dir, username, display);
*passwd_file = (char *) g_malloc(len + 1, 1);
if (*passwd_file != NULL)
{
/* Try legacy name first, remove if found */
g_sprintf(*passwd_file, "%s/.vnc/sesman_%s_passwd",
pw_dir, username);
if (g_file_exist(*passwd_file))
{
log_message(LOG_LEVEL_WARNING, "Removing insecure "
"password file %s", *passwd_file);
g_file_delete(*passwd_file);
}
g_sprintf(*passwd_file, "%s/.vnc/sesman_%s_passwd:%d",
pw_dir, username, display);
}
}
else
{
/* we use auth_file_path as requested */
len = g_snprintf(NULL, 0, g_cfg->auth_file_path, username);
*passwd_file = (char *) g_malloc(len + 1, 1);
if (*passwd_file != NULL)
{
g_sprintf(*passwd_file, g_cfg->auth_file_path, username);
}
}
if (*passwd_file != NULL)
{
LOG_DBG("pass file: %s", *passwd_file);
}
}
g_free(pw_dir);
g_free(pw_shell);
}
}
else
{
log_message(LOG_LEVEL_ERROR,
"error getting user info for user %s",
username);
}
return error;
}
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);
g_setenv("LANG", "en_US.UTF-8", 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;
}
