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Show minimum information on tcp table, and don't overflow the screen

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This commit is contained in:
Michael Theall 2016-06-15 03:38:53 -05:00
parent 501073c34c
commit 8c34814100
1 changed files with 41 additions and 16 deletions
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57
source/console.c
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@ -73,7 +73,7 @@ print_tcp_table(void)
static SOCU_TCPTableEntry tcp_entries[32]; static SOCU_TCPTableEntry tcp_entries[32];
socklen_t optlen; socklen_t optlen;
size_t i; size_t i;
int rc; int rc, lines = 0;
consoleSelect(&tcp_console); consoleSelect(&tcp_console);
console_print("\x1b[0;0H\x1b[K\n"); console_print("\x1b[0;0H\x1b[K\n");
@ -83,40 +83,65 @@ print_tcp_table(void)
console_print(RED "tcp table: %d %s\n\x1b[J\n" RESET, errno, strerror(errno)); console_print(RED "tcp table: %d %s\n\x1b[J\n" RESET, errno, strerror(errno));
else if(rc == 0) else if(rc == 0)
{ {
for(i = 0; i < optlen / sizeof(SOCU_TCPTableEntry); ++i) for(i = 0; lines < 30 && i < optlen / sizeof(SOCU_TCPTableEntry); ++i)
{ {
SOCU_TCPTableEntry *entry = &tcp_entries[i]; SOCU_TCPTableEntry *entry = &tcp_entries[i];
struct sockaddr_in *local = (struct sockaddr_in*)&entry->local; struct sockaddr_in *local = (struct sockaddr_in*)&entry->local;
struct sockaddr_in *remote = (struct sockaddr_in*)&entry->remote; struct sockaddr_in *remote = (struct sockaddr_in*)&entry->remote;
console_print(GREEN "tcp[%zu]: ", i); console_print(GREEN "%stcp[%zu]: ", i == 0 ? "" : "\n", i);
switch(entry->state) switch(entry->state)
{ {
case TCP_STATE_CLOSED: case TCP_STATE_CLOSED:
console_print("CLOSED\x1b[K\n"); break; console_print("CLOSED\x1b[K");
local = remote = NULL;
break;
case TCP_STATE_LISTEN: case TCP_STATE_LISTEN:
console_print("LISTEN\x1b[K\n"); break; console_print("LISTEN\x1b[K");
remote = NULL;
break;
case TCP_STATE_ESTABLISHED: case TCP_STATE_ESTABLISHED:
console_print("ESTABLISHED\x1b[K\n"); break; console_print("ESTABLISHED\x1b[K");
break;
case TCP_STATE_FINWAIT1: case TCP_STATE_FINWAIT1:
console_print("FINWAIT1\x1b[K\n"); break; console_print("FINWAIT1\x1b[K");
break;
case TCP_STATE_FINWAIT2: case TCP_STATE_FINWAIT2:
console_print("FINWAIT2\x1b[K\n"); break; console_print("FINWAIT2\x1b[K");
break;
case TCP_STATE_CLOSE_WAIT: case TCP_STATE_CLOSE_WAIT:
console_print("CLOSE_WAIT\x1b[K\n"); break; console_print("CLOSE_WAIT\x1b[K");
break;
case TCP_STATE_LAST_ACK: case TCP_STATE_LAST_ACK:
console_print("LAST_ACK\x1b[K\n"); break; console_print("LAST_ACK\x1b[K");
break;
case TCP_STATE_TIME_WAIT: case TCP_STATE_TIME_WAIT:
console_print("TIME_WAIT\x1b[K\n"); break; console_print("TIME_WAIT\x1b[K");
break;
default: default:
console_print("State %lu\x1b[K\n", entry->state); break; console_print("State %lu\x1b[K", entry->state);
break;
} }
console_print(" Local %s:%u\x1b[K\n", inet_ntoa(local->sin_addr), ++lines;
ntohs(local->sin_port));
console_print(" Peer %s:%u\x1b[K\n", inet_ntoa(remote->sin_addr), if(local && (lines++ < 30))
ntohs(remote->sin_port)); console_print("\n Local %s:%u\x1b[K", inet_ntoa(local->sin_addr),
ntohs(local->sin_port));
if(remote && (lines++ < 30))
console_print("\n Peer %s:%u\x1b[K", inet_ntoa(remote->sin_addr),
ntohs(remote->sin_port));
} }
console_print(RESET "\x1b[J"); console_print(RESET "\x1b[J");
} }
else else