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curses.c
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/*
mtr -- a network diagnostic tool
Copyright (C) 1997,1998 Matt Kimball
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string.h>
#include <unistd.h>
#include <strings.h>
#include <limits.h>
#include <time.h>
#include <netinet/in.h>
#ifdef ENABLE_IPV6
#include <netinet/ip6.h>
#endif
#include "mtr-curses.h"
#include "config.h"
#ifdef WITH_UNICODE
#ifndef _XOPEN_SOURCE_EXTENDED
#define _XOPEN_SOURCE_EXTENDED
#endif
#ifdef HAVE_WCHAR_H
# include <wchar.h>
#endif
#ifdef __NetBSD__
#define CCHAR_attr attributes
#define CCHAR_chars vals
/*
#elif defined(OPENSOLARIS_CURSES)
#define CCHAR_attr _at
#define CCHAR_chars _wc
*/
#else
#define CCHAR_attr attr
#define CCHAR_chars chars
#endif
#endif // WITH_UNICODE
#if defined(HAVE_NCURSESW_NCURSES_H)
# include <ncursesw/ncurses.h>
#elif defined(HAVE_NCURSESW_CURSES_H)
# include <ncursesw/curses.h>
#elif defined(HAVE_NCURSES_NCURSES_H)
# include <ncurses/ncurses.h>
#elif defined(HAVE_NCURSES_CURSES_H)
# include <ncurses/curses.h>
#elif defined(HAVE_NCURSES_H)
# include <ncurses.h>
#elif defined(HAVE_CURSES_H)
# include <curses.h>
#else
# error No curses header file available
#endif
#include "aux.h"
#include "display.h"
#include "net.h"
#ifdef ENABLE_DNS
#include "dns.h"
#endif
#ifdef WITH_IPINFO
#include "ipinfo.h"
#endif
const char CMODE_HINTS[] =
"Commands:\n"
" b <int> set bit pattern in range 0..255, or random (<0)\n"
" c <int> set number of cycles to run, or unlimit (<1)\n"
" d switch display mode\n"
#ifdef WITH_MPLS
" e toggle MPLS info\n"
#endif
" f <int> set first TTL (default 1)\n"
" i <int> set interval in seconds (default 1)\n"
" j toggle lattency/jitter stats (default latency)\n"
" m <int> set max TTL (default 30)\n"
#ifdef ENABLE_DNS
" n toggle DNS\n"
#endif
" o <str> set fields to display (default 'LRS N BAWV')\n"
" p|<space> pause and resume\n"
" q quit\n"
#ifdef IP_TOS
" Q <int> set ToS/QoS\n"
#endif
" r reset statistics\n"
" s <int> set packet size (default 64), or random (<0)\n"
" t toggle TCP pings\n"
" u toggle UDP pings\n"
" x toggle cache mode\n"
#ifdef WITH_IPINFO
" y switch IP info\n"
" z toggle ASN lookup\n"
#endif
" +- scroll up/down\n"
" hH? this help page\n"
"\n"
"Press any key to resume ...";
static int __unused_int;
static char entered[MAXFLD + 1]; // enough?
static char mc_title[256]; // basename-version arguments destination
static int enter_smth(int y, int x) {
move(y, x);
memset(entered, 0, sizeof(entered));
int curs = curs_set(1);
refresh();
for (int i = 0, c; ((c = getch()) != '\n') && (i < MAXFLD);) {
addch(c | A_BOLD);
refresh();
entered[i++] = c;
}
move(y, 0); clrtoeol(); refresh();
if (curs != ERR) curs_set(curs);
return strnlen(entered, MAXFLD);
}
static void enter_stat_fields(void) {
char fields[MAXFLD + 1] = {0};
int curs = curs_set(1);
for (int i = 0, c; ((c = getch()) != '\n') && (i < MAXFLD);) {
int j = 0;
for (; j < statf_max; j++) {
if (c == statf[j].key) { // only statf[].key allowed
addch(c | A_BOLD);
refresh();
fields[i++] = c;
break;
}
}
if (j >= statf_max) // illegal character
putchar('\a'); // beep
}
if (strnlen(fields, MAXFLD))
set_fld_active(fields);
if (curs != ERR) curs_set(curs);
}
#define HINT_YPOS 2
static bool mc_get_int(int *val, int min, int max, const char *what, const char *hint) {
bool rc = false;
if (val) {
mvprintw(HINT_YPOS, 0, "%s: %d", what, *val);
if (hint) mvprintw(HINT_YPOS + 1, 0, "-> %s", hint);
int xpos = what ? strlen(what) : 0;
if (enter_smth(HINT_YPOS, xpos + 2)) {
*val = limit_int(min, max, atoi((char*)entered), what, 0);
rc = true;
}
if (limit_error[0]) {
printw("%s, press any key to continue ...", limit_error);
refresh(); getch();
}
}
return rc;
}
int mc_keyaction(void) {
int c = getch();
switch (c) {
case '+': return ActionScrollDown;
case '-': return ActionScrollUp;
case '?':
case 'h':
erase();
mvprintw(2, 0, CMODE_HINTS);
getch();
return ActionNone;
case 'b':
mc_get_int(&cbitpattern, -1, 255, "Bit Pattern", "range[0-255], random is -1");
return ActionNone;
case 'c':
mvprintw(HINT_YPOS, 0, "Number (unlimit < 1) of cycles: %ld", max_ping);
if (enter_smth(HINT_YPOS, 32))
max_ping = atol((char*)entered);
return ActionNone;
case 'd': return ActionDisplay;
#ifdef WITH_MPLS
case 'e': return ActionMPLS;
#endif
case 'f':
mc_get_int(&fstTTL, 1, maxTTL, "First TTL", NULL);
return ActionNone;
case 'i': { int tout = wait_time;
if (mc_get_int(&tout, 1, INT_MAX, "Interval", NULL))
wait_time = tout;
} return ActionNone;
case 'j':
TGLBIT(run_args, RA_JITTER); // latency OR jitter
onoff_jitter();
return ActionNone;
case 'm':
mc_get_int(&maxTTL, 1, MAXHOST - 1, "Max TTL", NULL);
return ActionNone;
#ifdef ENABLE_DNS
case 'n': return ActionDNS;
#endif
case 'o': { // fields to display and their order
const char what[] = "Fields";
mvprintw(HINT_YPOS, 0, "%s: %s\n\n", what, fld_active);
for (int i = 0; i < statf_max; i++) if (statf[i].hint)
printw(" %c: %s\n", statf[i].key, statf[i].hint);
move(HINT_YPOS, strlen(what) + 2);
refresh();
enter_stat_fields();
} return ActionNone;
case ' ':
case 'p': return ActionPauseResume;
case 3 : // ^C
case 'q': return ActionQuit;
#ifdef IP_TOS
case 'Q':
#if defined(ENABLE_IPV6) && !defined(IPV6_TCLASS)
if (af == AF_INET6) {
mvprintw(HINT_YPOS, 0, "IPv6 traffic class is not supported");
mvprintw(HINT_YPOS + 1, 0, "-> Press any key to continue ...");
getch();
} else
#endif
{ mc_get_int(&tos, 0, 255, "Type of Service (ToS)",
"bits: lowcost(1), reliability(2), throughput(4), lowdelay(8)"); }
return ActionNone;
#endif
case 'r': return ActionReset;
case 's':
mvprintw(HINT_YPOS, 0, "Change Packet Size: %d", cpacketsize);
mvprintw(HINT_YPOS + 1, 0, "-> range[%d-%d], negative values are for random", MINPACKET, MAXPACKET);
if (enter_smth(HINT_YPOS, 20)) {
int s_val = atoi((char*)entered);
cpacketsize = limit_int(MINPACKET, MAXPACKET, abs(s_val), "Packet size", 0);
if (limit_error[0]) {
printw("%s, press any key to continue ...", limit_error);
refresh(); getch();
}
if (s_val < 0)
cpacketsize = -cpacketsize;
}
return ActionNone;
case 't': return ActionTCP;
case 'u': return ActionUDP;
case 'x': return ActionCache;
#ifdef WITH_IPINFO
case 'y': return ActionII;
case 'z': return ActionAS;
#endif
}
return ActionNone; // ignore unknown input
}
int mc_print_at(int at, char *buf, int sz) {
int l = 0;
for (int i = 0; (i < MAXFLD) && (l < sz); i++) {
const struct statf *sf = active_statf(i);
if (!sf) break;
// if there's no replies, show only packet counters
const char *str = (host[at].recv || strchr("LDRS", sf->key)) ? net_elem(at, sf->key) : "";
l += snprintf(buf + l, sz - l, "%*s", sf->len, str ? str : "");
}
return l;
}
#ifdef WITH_MPLS
static int printw_mpls(const mpls_data_t *m) {
for (int i = 0; i < m->n; i++) {
int y;
getyx(stdscr, y, __unused_int);
printw("%s", mpls2str(&(m->label[i]), 4));
if (move(y + 1, 0) == ERR)
return ERR;
}
return OK;
}
#endif
static void printw_addr(int at, int ndx, int up) {
t_ipaddr *addr = &IP_AT_NDX(at, ndx);
#ifdef WITH_IPINFO
if (ipinfo_ready())
printw("%s", fmt_ipinfo(at, ndx));
#endif
if (!up)
attron(A_BOLD);
#ifdef ENABLE_DNS
const char *name = dns_ptr_lookup(at, ndx);
if (name) {
printw("%s", name);
if (show_ips)
printw(" (%s)", strlongip(addr));
} else
#endif
printw("%s", strlongip(addr));
if (!up)
attroff(A_BOLD);
}
#define BELL_AT SAVED_PINGS - 3 // wait at least -i interval for reliability
static void seal_n_bell(int at, int max) {
if (host[at].saved[BELL_AT] == CT_UNKN) {
host[at].saved[BELL_AT] = CT_SEAL; // sealed
if (bell_target)
if (at != (max - 1))
return;
if (bell_audible) beep();
if (bell_visible) flash();
}
}
static int print_stat(int at, int y, int start, int max) { // statistics
static char statbuf[1024];
mc_print_at(at, statbuf, sizeof(statbuf));
mvprintw(y, start, "%s", statbuf);
if (bell_audible || bell_visible)
seal_n_bell(at, max);
return move(y + 1, 0);
}
static void print_addr_extra(int at, int y) { // mpls + multipath
for (int ndx = 0; ndx < MAXPATH; ndx++) { // multipath
if (ndx == host[at].current)
continue; // because already printed
t_ipaddr *addr = &IP_AT_NDX(at, ndx);
if (!addr_exist(addr))
break;
printw(" ");
printw_addr(at, ndx, host[at].up);
getyx(stdscr, y, __unused_int);
if (move(y + 1, 0) == ERR)
break;
#ifdef WITH_MPLS
if (enable_mpls)
if (printw_mpls(&MPLS_AT_NDX(at, ndx)) == ERR)
break;
#endif
}
}
static void print_hops(int statx) {
int max = net_max();
for (int at = net_min() + display_offset; at < max; at++) {
int y;
getyx(stdscr, y, __unused_int);
move(y, 0);
printw("%2d. ", at + 1);
t_ipaddr *addr = &CURRENT_IP(at);
if (!addr_exist(addr)) {
printw("%s", UNKN_ITEM);
if (move(y + 1, 0) == ERR)
break;
// continue;
if (at < (max - 1))
if (print_stat(at, y, statx, max) == ERR)
break;
} else {
printw_addr(at, host[at].current, host[at].up);
if (print_stat(at, y, statx, max) == ERR)
break;
#ifdef WITH_MPLS
if (enable_mpls)
printw_mpls(&CURRENT_MPLS(at));
#endif
print_addr_extra(at, y);
}
}
move(2, 0);
}
static chtype map1[] = {'.' | A_NORMAL, '>' | COLOR_PAIR(1)};
#define NUM_FACTORS2 8
static chtype map2[NUM_FACTORS2];
static double factors2[NUM_FACTORS2];
static int scale2[NUM_FACTORS2];
static int dm2_color_base;
static chtype map_na2[] = { ' ', '?', '>' | A_BOLD};
#ifdef WITH_UNICODE
#define NUM_FACTORS3_MONO 7 // without trailing char
#define NUM_FACTORS3 22
static cchar_t map3[NUM_FACTORS3];
static double factors3[NUM_FACTORS3];
static int scale3[NUM_FACTORS3];
static int dm3_color_base;
static cchar_t map_na3[3];
#endif
static void scale_map(int *scale, double *factors, int num) {
int minval = INT_MAX;
int maxval = -1;
int max = net_max();
for (int at = display_offset; at < max; at++) {
for (int i = 0; i < SAVED_PINGS; i++) {
int saved = host[at].saved[i];
if (saved >= 0) {
if (saved > maxval)
maxval = saved;
else if (saved < minval)
minval = saved;
}
}
}
if (maxval < 0)
return;
int range = maxval - minval;
for (int i = 0; i < num; i++)
scale[i] = minval + range * factors[i];
}
static void dmode_scale_map(void) {
#ifdef WITH_UNICODE
if (curses_mode == 3)
scale_map(scale3, factors3, enable_color ? NUM_FACTORS3 : (NUM_FACTORS3_MONO + 1));
else
#endif
scale_map(scale2, factors2, NUM_FACTORS2);
}
static inline void dmode_init(double *factors, int num) {
double inv = 1 / (double)num;
for (int i = 0; i < num; i++) {
double f = (i + 1) * inv;
factors[i] = f * f;
}
}
void mc_init(void) {
// display mode 2
dmode_init(factors2, NUM_FACTORS2);
#ifdef WITH_UNICODE
// display mode 3
dmode_init(factors3, enable_color ? NUM_FACTORS3 : (NUM_FACTORS3_MONO + 1));
#endif
// Initialize block_map
int block_split;
block_split = (NUM_FACTORS2 - 2) / 2;
if (block_split > 9)
block_split = 9;
for (int i = 1; i <= block_split; i++)
map2[i] = '0' + i;
for (int i = block_split + 1; i < NUM_FACTORS2 - 1; i++)
map2[i] = 'a' + i - block_split - 1;
map2[0] = map1[0];
for (int i = 1; i < NUM_FACTORS2 - 1; i++)
map2[i] |= COLOR_PAIR(dm2_color_base + i - 1);
map2[NUM_FACTORS2 - 1] = map1[1] & A_CHARTEXT;
map2[NUM_FACTORS2 - 1] |= (map2[NUM_FACTORS2 - 2] & A_ATTRIBUTES) | A_BOLD;
map_na2[1] |= enable_color ? (map2[NUM_FACTORS2 - 1] & A_ATTRIBUTES) : A_BOLD;
#ifdef WITH_UNICODE
for (int i = 0; i < NUM_FACTORS3_MONO; i++)
map3[i].CCHAR_chars[0] = L'▁' + i;
if (enable_color) {
for (int i = 0; i < NUM_FACTORS3 - 1; i++) {
int base = i / NUM_FACTORS3_MONO;
map3[i].CCHAR_attr = COLOR_PAIR(dm3_color_base + base);
if (i >= NUM_FACTORS3_MONO)
map3[i].CCHAR_chars[0] = map3[i % NUM_FACTORS3_MONO].CCHAR_chars[0];
}
map3[NUM_FACTORS3 - 1].CCHAR_chars[0] = map1[1] & A_CHARTEXT;
map3[NUM_FACTORS3 - 1].CCHAR_attr = map3[NUM_FACTORS3 - 2].CCHAR_attr | A_BOLD;
} else
map3[NUM_FACTORS3_MONO].CCHAR_chars[0] = map1[1] & A_CHARTEXT;
for (int i = 0; i < (sizeof(map_na2) / sizeof(map_na2[0])); i++)
map_na3[i].CCHAR_chars[0] = map_na2[i] & A_CHARTEXT;
map_na3[1].CCHAR_attr = enable_color ? map3[NUM_FACTORS3 - 1].CCHAR_attr : A_BOLD;
map_na3[2].CCHAR_attr = A_BOLD;
#endif
}
#define NA_MAP(map) { \
if (saved_int == CT_UNSENT) \
return map[0]; /* unsent ' ' */ \
if ((saved_int == CT_UNKN) || (saved_int == CT_SEAL)) \
return map[1]; /* no response '?' */ \
}
static chtype get_saved_ch(int saved_int) {
NA_MAP(map_na2);
if (curses_mode == 1)
return map1[(saved_int <= scale2[NUM_FACTORS2 - 2]) ? 0 : 1];
if (curses_mode == 2)
for (int i = 0; i < NUM_FACTORS2; i++)
if (saved_int <= scale2[i])
return map2[i];
return map_na2[2]; // UNKN
}
#ifdef WITH_UNICODE
static cchar_t* mtr_saved_cc(int saved_int) {
NA_MAP(&map_na3);
int num = enable_color ? NUM_FACTORS3 : (NUM_FACTORS3_MONO + 1);
for (int i = 0; i < num; i++)
if (saved_int <= scale3[i])
return &map3[i];
return &map_na3[2]; // UNKN
}
#endif
static void histogram(int statx, int cols) {
int max = net_max();
for (int at = net_min() + display_offset; at < max; at++) {
int y;
getyx(stdscr, y, __unused_int);
move(y, 0);
printw("%2d. ", at + 1);
t_ipaddr *addr = &CURRENT_IP(at);
if (addr_exist(addr)) {
if (!host[at].up)
attron(A_BOLD);
#ifdef WITH_IPINFO
if (ipinfo_ready())
printw("%s", fmt_ipinfo(at, host[at].current));
#endif
#ifdef ENABLE_DNS
const char *name = dns_ptr_lookup(at, host[at].current);
printw("%s", name ? name : strlongip(addr));
#else
printw("%s", strlongip(addr));
#endif
if (!host[at].up)
attroff(A_BOLD);
mvprintw(y, statx, " ");
#ifdef WITH_UNICODE
if (curses_mode == 3)
for (int i = SAVED_PINGS - cols; i < SAVED_PINGS; i++)
add_wch(mtr_saved_cc(host[at].saved[i]));
else
#endif
for (int i = SAVED_PINGS - cols; i < SAVED_PINGS; i++)
addch(get_saved_ch(host[at].saved[i]));
if (bell_audible || bell_visible)
seal_n_bell(at, max);
} else
printw("%s", UNKN_ITEM);
if (move(y + 1, 0) == ERR)
break;
}
}
int mc_statf_title(char *buf, int sz) {
int l = 0;
for (int i = 0; (i < MAXFLD) && (l < sz); i++) {
const struct statf *sf = active_statf(i);
if (!sf) break;
l += snprintf(buf + l, sz - l, "%*s", sf->len, sf->name);
}
buf[l] = 0;
return l;
}
#ifdef WITH_UNICODE
static void mtr_print_scale3(int min, int max, int step) {
for (int i = min; i < max; i += step) {
addstr(" ");
add_wch(&map3[i]);
LENVALMIL(scale3[i]);
printw(":%.*fms", _l, _v);
}
addstr(" ");
add_wch(&map3[max]);
}
#endif
static inline int map2ch(int i) { return map2[i] & A_CHARTEXT; }
static void print_scale(void) {
attron(A_BOLD);
printw("Scale:");
attroff(A_BOLD);
if (curses_mode == 1) {
addstr(" ");
addch(map1[0] | A_BOLD);
LENVALMIL(scale2[NUM_FACTORS2 - 2]);
printw(" less than %.*fms ", _l, _v);
addch(map1[1] | (enable_color ? 0 : A_BOLD));
addstr(" greater than ");
addch(map1[0] | A_BOLD);
addstr(" ");
addch('?' | (enable_color ? (map2[NUM_FACTORS2 - 1] & A_ATTRIBUTES) : A_BOLD));
addstr(" Unknown");
} else if (curses_mode == 2) {
if (enable_color) {
for (int i = 0; i < NUM_FACTORS2 - 1; i++) {
addstr(" ");
addch(map2[i]);
LENVALMIL(scale2[i]);
printw(":%.*fms", _l, _v);
}
addstr(" ");
addch(map2[NUM_FACTORS2 - 1]);
} else {
for (int i = 0; i < NUM_FACTORS2 - 1; i++) {
LENVALMIL(scale2[i]);
printw(" %c:%.*fms", map2ch(i), _l, _v);
}
printw(" %c", map2ch(NUM_FACTORS2 - 1));
}
}
#ifdef WITH_UNICODE
else if (curses_mode == 3) {
if (enable_color)
mtr_print_scale3(1, NUM_FACTORS3 - 1, 2);
else
mtr_print_scale3(0, NUM_FACTORS3_MONO, 1);
}
#endif
}
#define SET_IASP { if (!iargs_sp) iargs_sp = true; }
#define IASP (iargs_sp ? " " : "")
#define ADD_NTH_BIT_INFO(bit, what) { \
if (NEQBIT(run_args, kept_args, (bit))) l += snprint_iarg((bit), buf + l, sz - l, (what)); }
static bool iargs_sp;
static int snprint_iarg(int bit, char *buf, int sz, const char *msg) {
int l = snprintf(buf, sz, "%s%c%s", IASP, CHKBIT(run_args, bit) ? '+' : '-', msg);
SET_IASP;
return l;
}
int mc_snprint_args(char *buf, int sz) {
iargs_sp = false;
int l = snprintf(buf, sz, " (");
ADD_NTH_BIT_INFO(RA_UDP, "udp");
ADD_NTH_BIT_INFO(RA_TCP, "tcp");
#ifdef WITH_MPLS
ADD_NTH_BIT_INFO(RA_MPLS, "mpls");
#endif
#ifdef WITH_IPINFO
ADD_NTH_BIT_INFO(RA_ASN, "asn");
ADD_NTH_BIT_INFO(RA_IPINFO, "ipinfo");
#endif
#ifdef ENABLE_DNS
ADD_NTH_BIT_INFO(RA_DNS, "dns");
#endif
ADD_NTH_BIT_INFO(RA_JITTER, "jitter");
int chart = 0;
if (CHKBIT(run_args, RA_DM0)) chart |= 1;
if (CHKBIT(run_args, RA_DM1)) chart |= 2;
if (chart) { l += snprintf(buf + l, sz - l, "%schart%u", IASP, chart); SET_IASP; }
ADD_NTH_BIT_INFO(RA_CACHE, "cache");
l += snprintf(buf + l, sz - l, ")");
if (strnlen(buf, sizeof(buf)) == 3 /*" ()"*/) l = 0;
if (NEQBIT(run_args, kept_args, RA_PAUSE)) l += snprintf(buf + l, sz - l, ": in pause");
return l;
}
void mc_redraw(void) {
static char linebuf[1024]; // seems enough for one line
int maxx, maxy;
int statx, staty = 4;
erase();
getmaxyx(stdscr, maxy, maxx);
// title
int l = snprintf(linebuf, sizeof(linebuf), "%s", mc_title);
if (run_args != kept_args)
l += mc_snprint_args(linebuf + l, sizeof(linebuf) - l);
mvprintw(0, 0, "%*s", (maxx + l) / 2, linebuf);
// hints and time
mvprintw(1, 0, "Keys: ");
attron(A_BOLD); addch('h'); attroff(A_BOLD); printw("ints ");
attron(A_BOLD); addch('q'); attroff(A_BOLD); printw("uit\n");
time_t t = time(NULL);
int hlen = strnlen(srchost, 20);
mvprintw(1, maxx - (hlen + 27), "%.*s: %s", hlen, srchost, ctime(&t));
// main body
if (curses_mode == 0) {
statx = 4; // indent: "NN. "
int tlen = mc_statf_title(linebuf, sizeof(linebuf));
attron(A_BOLD);
#ifdef WITH_IPINFO
if (ipinfo_ready()) {
char *header = ipinfo_header();
if (header)
mvprintw(staty - 1, statx, "%s", header);
statx += ipinfo_width(); // indent: "NN. " + IPINFO
}
#endif
mvprintw(staty - 1, statx, "Host");
l = maxx - tlen - 1;
mvprintw(staty - 1, l > 0 ? l : 0, "%s", linebuf);
if (is_custom_fld())
l = snprintf(linebuf, sizeof(linebuf), "Custom keys: %s", fld_active);
else
l = snprintf(linebuf, sizeof(linebuf), "Packets Pings");
l = l >= tlen ? maxx - l : maxx - tlen + 1;
mvprintw(staty - 2, l > 0 ? l : 0, "%s", linebuf);
attroff(A_BOLD);
if (move(staty, 0) != ERR)
print_hops(maxx - tlen - 1);
} else {
statx = STARTSTAT;
#ifdef WITH_IPINFO
if (ipinfo_ready())
statx += ipinfo_width();
#endif
int max_cols = (maxx <= (SAVED_PINGS + statx)) ? (maxx - statx) : SAVED_PINGS;
statx -= 2;
mvprintw(staty - 1, statx, " Last %3d pings", max_cols);
if (move(staty, 0) != ERR) {
attroff(A_BOLD);
dmode_scale_map();
histogram(statx, max_cols);
int y;
getyx(stdscr, y, __unused_int);
int re = move(y + 1, 0);
if (re != ERR)
print_scale();
}
}
refresh();
move(maxy - 3, 0);
}
bool mc_open(void) {
if (!initscr()) {
WARNX("initscr() failed");
return false;
}
raw();
noecho();
if (enable_color)
if (!has_colors())
enable_color = false;
if (enable_color) {
start_color();
int bg_col = 0;
#ifdef HAVE_USE_DEFAULT_COLORS
use_default_colors();
if (use_default_colors() == OK)
bg_col = -1;
#endif
int i = 1;
// curses_mode 1
init_pair(i++, COLOR_YELLOW, bg_col);
// curses_mode 2
dm2_color_base = i;
init_pair(i++, COLOR_GREEN, bg_col);
init_pair(i++, COLOR_CYAN, bg_col);
init_pair(i++, COLOR_BLUE, bg_col);
init_pair(i++, COLOR_YELLOW, bg_col);
init_pair(i++, COLOR_MAGENTA, bg_col);
init_pair(i++, COLOR_RED, bg_col);
#ifdef WITH_UNICODE
// display mode 3
dm3_color_base = i;
init_pair(i++, COLOR_GREEN, bg_col);
// init_pair(i++, COLOR_YELLOW, COLOR_GREEN);
init_pair(i++, COLOR_YELLOW, bg_col);
// init_pair(i++, COLOR_RED, COLOR_YELLOW);
init_pair(i++, COLOR_RED, bg_col);
init_pair(i++, COLOR_RED, bg_col);
#endif
}
// init title
{ int l = snprintf(mc_title, sizeof(mc_title), "%s", FULLNAME);
if (mtr_args[0]) l += snprintf(mc_title + l, sizeof(mc_title) - l, " %s", mtr_args);
snprintf(mc_title + l, sizeof(mc_title) - l, " %s", dsthost); }
mc_init();
mc_redraw();
curs_set(0);
return true;
}
void mc_close(void) {
addch('\n');
endwin();
}
void mc_clear(void) {
mc_close();
mc_open();
}