anchao commented on a change in pull request #1054:
URL: https://github.com/apache/incubator-nuttx/pull/1054#discussion_r425793735
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File path: net/tcp/tcp_conn.c
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@@ -263,6 +260,20 @@ static FAR struct tcp_conn_s *
static int tcp_selectport(uint8_t domain, FAR const union ip_addr_u *ipaddr,
uint16_t portno)
{
+ static uint16_t g_last_tcp_port;
+
+ /* Generate port base dynamically */
+
+ if (g_last_tcp_port == 0)
+ {
+ g_last_tcp_port = clock_systime_ticks() % 32000;
+
+ if (g_last_tcp_port < 4096)
+ {
+ g_last_tcp_port += 4096;
+ }
+ }
+
Review comment:
g_last_tcp_port will only be updated once if it is uninitialized
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