/**********************************************************************
* %FUNCTION: cmd_dump_sessions
* %ARGUMENTS:
* es -- event selector
* fd -- command file descriptor
* buf -- rest of command from user
* %RETURNS:
* Nothing
* %DESCRIPTION:
* Dumps info about all currently-active tunnels and sessions
***********************************************************************/
static void
cmd_dump_sessions(EventSelector *es,
int fd,
char *buf)
{
dynstring str;
char tmp[256];
void *cursor;
char const *ans;
l2tp_tunnel *tunnel;
dynstring_init(&str);
dynstring_append(&str, "OK\n");
/* Print info about each tunnel */
sprintf(tmp, "NumL2TPTunnels %d\n", l2tp_num_tunnels());
dynstring_append(&str, tmp);
for (tunnel = l2tp_first_tunnel(&cursor);
tunnel;
tunnel = l2tp_next_tunnel(&cursor)) {
describe_tunnel(tunnel, &str);
}
/* If something went wrong, say so... */
ans = dynstring_data(&str);
if (!ans) {
cmd_reply(es, fd, "ERR Out of memory");
return;
}
cmd_reply(es, fd, ans);
dynstring_free(&str);
}
/***********************************************************
* 功能: 重置动态字符串,先释放,重新初始化
* pstr: 动态字符串指针
**********************************************************/
void dynstring_reset(DynString *pstr)
{
dynstring_free(pstr);
dynstring_init(pstr,8); //字符串初始化分配空间8个字节
}
void dynstring_reset(DynString* ptr) //重新初始化
{
dynstring_free(ptr);
dynstring_init(ptr, 8);
}
