Fix to avoid system call in text mode wherever possible.
Robert Scheck <robert@fedoraproject.org>
This commit is contained in:
pdw
354
tui.c
Normal file
354
tui.c
Normal file
@@ -0,0 +1,354 @@
|
||||
/*
|
||||
* tui.c:
|
||||
*
|
||||
* Based on ui.c from the original iftop sources.
|
||||
*
|
||||
* This user interface does not make use of curses. Instead, it prints its
|
||||
* output to STDOUT. This output is activated by providing the '-t' flag.
|
||||
*
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <signal.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#if defined(HAVE_TERMIOS_H)
|
||||
#include <termios.h>
|
||||
#elif defined(HAVE_SGTTY_H) && defined(TIOCSETP)
|
||||
#include <sys/ioctl.h>
|
||||
#include <sgtty.h>
|
||||
#elif defined(HAVE_TERMIO_H)
|
||||
#include <sys/ioctl.h>
|
||||
#include <termio.h>
|
||||
#else
|
||||
#include <stdlib.h>
|
||||
#endif
|
||||
|
||||
#include "sorted_list.h"
|
||||
#include "options.h"
|
||||
#include "ui_common.h"
|
||||
|
||||
/* Width of the host column in the output */
|
||||
#define PRINT_WIDTH 40
|
||||
|
||||
|
||||
/*
|
||||
* UI print function
|
||||
*/
|
||||
void tui_print() {
|
||||
sorted_list_node* nn = NULL;
|
||||
char host1[HOSTNAME_LENGTH], host2[HOSTNAME_LENGTH];
|
||||
char buf0_10[10], buf1_10[10], buf2_10[10];
|
||||
int j;
|
||||
static char *label;
|
||||
static char *labellong;
|
||||
int l = 0;
|
||||
|
||||
if (!label) {
|
||||
xfree(label);
|
||||
label = (char *)calloc(PRINT_WIDTH + 1, 1);
|
||||
}
|
||||
|
||||
if (!labellong) {
|
||||
xfree(labellong);
|
||||
labellong = (char *)calloc(PRINT_WIDTH + 1 + 9, 1);
|
||||
}
|
||||
|
||||
if (options.paused ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* Headings */
|
||||
snprintf(label, PRINT_WIDTH, "%-*s", PRINT_WIDTH, "Host name (port/service if enabled)");
|
||||
printf("%s %s %10s %10s %10s %10s\n", " #", label, "last 2s", "last 10s", "last 40s", "cumulative");
|
||||
|
||||
/* Divider line */
|
||||
for (j = 0; j < PRINT_WIDTH + 52; j++) {
|
||||
printf("-");
|
||||
}
|
||||
printf("\n");
|
||||
|
||||
/* Traverse the list of all connections */
|
||||
while((nn = sorted_list_next_item(&screen_list, nn)) != NULL && l < options.num_lines) {
|
||||
/* Increment the line counter */
|
||||
l++;
|
||||
|
||||
/* Get the connection information */
|
||||
host_pair_line* screen_line = (host_pair_line*)nn->data;
|
||||
|
||||
/* Assemble host information */
|
||||
sprint_host(host1, screen_line->ap.af, &(screen_line->ap.src6), screen_line->ap.src_port, screen_line->ap.protocol, PRINT_WIDTH, options.aggregate_src);
|
||||
sprint_host(host2, screen_line->ap.af, &(screen_line->ap.dst6), screen_line->ap.dst_port, screen_line->ap.protocol, PRINT_WIDTH, options.aggregate_dest);
|
||||
|
||||
/* Send rate per connection */
|
||||
printf("%4d %s%s", l, host1, " =>");
|
||||
for(j = 0; j < HISTORY_DIVISIONS; j++) {
|
||||
readable_size(screen_line->sent[j], buf0_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
printf(" %10s", buf0_10);
|
||||
}
|
||||
/* Cumulative sent data per connection */
|
||||
readable_size(screen_line->total_sent, buf0_10, 10, 1024, 1);
|
||||
printf(" %10s\n", buf0_10);
|
||||
|
||||
/* Receive rate per connection */
|
||||
printf(" %s%s", host2, " <=");
|
||||
for(j = 0; j < HISTORY_DIVISIONS; j++) {
|
||||
readable_size(screen_line->recv[j], buf0_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
printf(" %10s", buf0_10);
|
||||
}
|
||||
/* Cumulative received data per connection */
|
||||
readable_size(screen_line->total_recv, buf0_10, 10, 1024, 1);
|
||||
printf(" %10s\n", buf0_10);
|
||||
}
|
||||
|
||||
/* Divider line */
|
||||
for (j = 0; j < PRINT_WIDTH + 52; j++) {
|
||||
printf("-");
|
||||
}
|
||||
printf("\n");
|
||||
|
||||
/* Rate totals */
|
||||
snprintf(labellong, PRINT_WIDTH + 9, "%-*s", PRINT_WIDTH + 9, "Total send rate:");
|
||||
printf("%s ", labellong);
|
||||
for(j = 0; j < HISTORY_DIVISIONS; j++) {
|
||||
readable_size((((host_pair_line *)&totals)->sent[j]) , buf0_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
printf("%10s%c", buf0_10, j == HISTORY_DIVISIONS - 1 ? '\n' : ' ');
|
||||
}
|
||||
|
||||
snprintf(labellong, PRINT_WIDTH + 9, "%-*s", PRINT_WIDTH + 9, "Total receive rate:");
|
||||
printf("%s ", labellong);
|
||||
for(j = 0; j < HISTORY_DIVISIONS; j++) {
|
||||
readable_size((((host_pair_line *)&totals)->recv[j]) , buf0_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
printf("%10s%c", buf0_10, j == HISTORY_DIVISIONS - 1 ? '\n' : ' ');
|
||||
}
|
||||
|
||||
snprintf(labellong, PRINT_WIDTH + 9, "%-*s", PRINT_WIDTH + 9, "Total send and receive rate:");
|
||||
printf("%s ", labellong);
|
||||
for(j = 0; j < HISTORY_DIVISIONS; j++) {
|
||||
readable_size((((host_pair_line *)&totals)->sent[j] + ((host_pair_line *)&totals)->recv[j]) , buf0_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
printf("%10s%c", buf0_10, j == HISTORY_DIVISIONS - 1 ? '\n' : ' ');
|
||||
}
|
||||
|
||||
/* Divider line */
|
||||
for (j = 0; j < PRINT_WIDTH + 52; j++) {
|
||||
printf("-");
|
||||
}
|
||||
printf("\n");
|
||||
|
||||
/* Peak traffic */
|
||||
snprintf(labellong, PRINT_WIDTH + 9, "%-*s", PRINT_WIDTH + 9, "Peak rate (sent/received/total):");
|
||||
readable_size(peaksent / RESOLUTION, buf0_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
readable_size(peakrecv / RESOLUTION, buf1_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
readable_size(peaktotal / RESOLUTION, buf2_10, 10, 1024, options.bandwidth_in_bytes);
|
||||
printf("%s %10s %10s %10s\n", labellong, buf0_10, buf1_10, buf2_10);
|
||||
|
||||
/* Cumulative totals */
|
||||
snprintf(labellong, PRINT_WIDTH + 9, "%-*s", PRINT_WIDTH + 9, "Cumulative (sent/received/total):");
|
||||
readable_size(history_totals.total_sent, buf0_10, 10, 1024, 1);
|
||||
readable_size(history_totals.total_recv, buf1_10, 10, 1024, 1);
|
||||
readable_size(history_totals.total_recv + history_totals.total_sent, buf2_10, 10, 1024, 1);
|
||||
printf("%s %10s %10s %10s\n", labellong, buf0_10, buf1_10, buf2_10);
|
||||
|
||||
/* Double divider line */
|
||||
for (j = 0; j < PRINT_WIDTH + 52; j++) {
|
||||
printf("=");
|
||||
}
|
||||
printf("\n\n");
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Text interface data structure initializations.
|
||||
*/
|
||||
void tui_init() {
|
||||
screen_list_init();
|
||||
screen_hash = addr_hash_create();
|
||||
service_hash = serv_hash_create();
|
||||
serv_hash_initialise(service_hash);
|
||||
|
||||
printf("Listening on %s\n", options.interface);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Tick function indicating screen refresh
|
||||
*/
|
||||
void tui_tick(int print) {
|
||||
if (print) {
|
||||
tui_print();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Main UI loop. Code any interactive character inputs here.
|
||||
*/
|
||||
void tui_loop() {
|
||||
int i;
|
||||
extern sig_atomic_t foad;
|
||||
|
||||
#if defined(HAVE_TERMIOS_H)
|
||||
struct termios new_termios, old_termios;
|
||||
|
||||
tcgetattr(STDIN_FILENO, &old_termios);
|
||||
new_termios = old_termios;
|
||||
new_termios.c_lflag &= ~(ICANON|ECHO);
|
||||
new_termios.c_cc[VMIN] = 1;
|
||||
new_termios.c_cc[VTIME] = 0;
|
||||
tcsetattr(STDIN_FILENO, TCSANOW, &new_termios);
|
||||
#elif defined(HAVE_SGTTY_H) && defined(TIOCSETP)
|
||||
struct sgttyb new_tty, old_tty;
|
||||
|
||||
ioctl(STDIN_FILENO, TIOCGETP, &old_tty);
|
||||
new_tty = old_tty;
|
||||
new_tty.sg_flags &= ~(ICANON|ECHO);
|
||||
ioctl(STDIN_FILENO, TIOCSETP, &new_tty);
|
||||
#elif defined(HAVE_TERMIO_H)
|
||||
struct termio new_termio, old_termio;
|
||||
|
||||
ioctl(0, TCGETA, &old_termio);
|
||||
new_termio = old_termio;
|
||||
new_termio.c_lflag &= ~(ICANON|ECHO);
|
||||
new_termio.c_cc[VMIN] = 1;
|
||||
new_termio.c_cc[VTIME] = 0;
|
||||
ioctl(0, TCSETA, &new_termio);
|
||||
#else
|
||||
system("/bin/stty cbreak -echo >/dev/null 2>&1");
|
||||
#endif
|
||||
|
||||
while ((i = getchar()) != 'q' && foad == 0) {
|
||||
switch (i) {
|
||||
case 'u':
|
||||
tick(1);
|
||||
break;
|
||||
case 'n':
|
||||
options.dnsresolution ^= 1;
|
||||
printf("DNS resolution is %s.\n\n", options.dnsresolution ? "ON" : "OFF");
|
||||
tick(1);
|
||||
break;
|
||||
case 'N':
|
||||
options.portresolution ^= 1;
|
||||
printf("Port resolution is %s.\n\n", options.portresolution ? "ON" : "OFF");
|
||||
tick(1);
|
||||
break;
|
||||
case 's':
|
||||
options.aggregate_src ^= 1;
|
||||
printf("%s source host\n\n", options.aggregate_src ? "Hide" : "Show");
|
||||
tick(1);
|
||||
break;
|
||||
case 'd':
|
||||
options.aggregate_dest ^= 1;
|
||||
printf("%s destination host\n\n", options.aggregate_dest ? "Hide" : "Show");
|
||||
tick(1);
|
||||
break;
|
||||
case 'S':
|
||||
if (options.showports == OPTION_PORTS_OFF) {
|
||||
options.showports = OPTION_PORTS_SRC;
|
||||
}
|
||||
else if (options.showports == OPTION_PORTS_DEST) {
|
||||
options.showports = OPTION_PORTS_ON;
|
||||
}
|
||||
else if(options.showports == OPTION_PORTS_ON) {
|
||||
options.showports = OPTION_PORTS_DEST;
|
||||
}
|
||||
else {
|
||||
options.showports = OPTION_PORTS_OFF;
|
||||
}
|
||||
printf("Showing ports:%s%s%s%s.\n\n",
|
||||
options.showports == OPTION_PORTS_SRC ? " src" : "",
|
||||
options.showports == OPTION_PORTS_DEST ? " dest" : "",
|
||||
options.showports == OPTION_PORTS_ON ? " both" : "",
|
||||
options.showports == OPTION_PORTS_OFF ? " none" : "");
|
||||
tick(1);
|
||||
break;
|
||||
case 'D':
|
||||
if (options.showports == OPTION_PORTS_OFF) {
|
||||
options.showports = OPTION_PORTS_DEST;
|
||||
}
|
||||
else if (options.showports == OPTION_PORTS_SRC) {
|
||||
options.showports = OPTION_PORTS_ON;
|
||||
}
|
||||
else if(options.showports == OPTION_PORTS_ON) {
|
||||
options.showports = OPTION_PORTS_SRC;
|
||||
}
|
||||
else {
|
||||
options.showports = OPTION_PORTS_OFF;
|
||||
}
|
||||
printf("Showing ports:%s%s%s%s.\n\n",
|
||||
options.showports == OPTION_PORTS_SRC ? " src" : "",
|
||||
options.showports == OPTION_PORTS_DEST ? " dest" : "",
|
||||
options.showports == OPTION_PORTS_ON ? " both" : "",
|
||||
options.showports == OPTION_PORTS_OFF ? " none" : "");
|
||||
tick(1);
|
||||
break;
|
||||
case 'p':
|
||||
options.showports =
|
||||
(options.showports == OPTION_PORTS_OFF) ?
|
||||
OPTION_PORTS_ON :
|
||||
OPTION_PORTS_OFF;
|
||||
printf("Showing ports:%s%s%s%s.\n\n",
|
||||
options.showports == OPTION_PORTS_SRC ? " src" : "",
|
||||
options.showports == OPTION_PORTS_DEST ? " dest" : "",
|
||||
options.showports == OPTION_PORTS_ON ? " both" : "",
|
||||
options.showports == OPTION_PORTS_OFF ? " none" : "");
|
||||
tick(1);
|
||||
break;
|
||||
case 'P':
|
||||
options.paused ^= 1;
|
||||
if (options.paused) {
|
||||
printf("Pausing... press 'P' again to continue.\n");
|
||||
}
|
||||
else {
|
||||
printf("Continuing.\n\n");
|
||||
tick(1);
|
||||
}
|
||||
break;
|
||||
case 'o':
|
||||
options.freezeorder ^= 1;
|
||||
printf("Order %s.\n\n", options.freezeorder ? "frozen" : "unfrozen");
|
||||
tick(1);
|
||||
break;
|
||||
case '1':
|
||||
options.sort = OPTION_SORT_DIV1;
|
||||
printf("Sorting by column 1.\n\n");
|
||||
tick(1);
|
||||
break;
|
||||
case '2':
|
||||
options.sort = OPTION_SORT_DIV2;
|
||||
printf("Sorting by column 2.\n\n");
|
||||
tick(1);
|
||||
break;
|
||||
case '3':
|
||||
options.sort = OPTION_SORT_DIV3;
|
||||
printf("Sorting by column 3.\n\n");
|
||||
tick(1);
|
||||
break;
|
||||
case '<':
|
||||
options.sort = OPTION_SORT_SRC;
|
||||
printf("Sorting by column source.\n\n");
|
||||
tick(1);
|
||||
break;
|
||||
case '>':
|
||||
options.sort = OPTION_SORT_DEST;
|
||||
printf("Sorting by column destination.\n\n");
|
||||
tick(1);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(HAVE_TERMIOS_H)
|
||||
tcsetattr(STDIN_FILENO, TCSANOW, &old_termios);
|
||||
#elif defined(HAVE_SGTTY_H) && defined(TIOCSETP)
|
||||
ioctl(0, TIOCSETP, &old_tty);
|
||||
#elif defined(HAVE_TERMIO_H)
|
||||
ioctl(0, TCSETA, &old_termio);
|
||||
#else
|
||||
system("/bin/stty -cbreak echo >/dev/null 2>&1");
|
||||
#endif
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user