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dgamelaunch.c
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dgamelaunch.c
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/* dgamelaunch.c
*
* (c)2001-4 M. Drew Streib <[email protected]>
* also parts (c) 2003-4 Joshua Kwan <[email protected]>,
* Brett Carrington <[email protected]>,
* Jilles Tjoelker <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
/*
* See this program in action at http://alt.org/nethack/
*
* This is a little wrapper for nethack (and soon other programs) that
* will allow them to be run from a telnetd session, chroot, shed privs,
* make a simple login, then play the game.
*/
#define _GNU_SOURCE
#include "dgamelaunch.h"
#include "config.h"
#include "ttyplay.h"
#include "ttyrec.h"
/* a request from the author: please leave some remnance of
* 'based on dgamelaunch version xxx' in any derivative works, or
* even keep the line the same altogether. I'm probably happy
* to make any changes you need. */
/* ************************************************************* */
/* program stuff */
#include <sys/types.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/ioctl.h> /* ttyrec */
#include <sys/stat.h>
#ifdef USE_RLIMIT
#include <sys/resource.h>
#endif
#ifdef USE_SHMEM
#include <sys/ipc.h>
#include <sys/shm.h>
#endif
#include <libgen.h>
#include <stdlib.h>
#include <curses.h>
#include <locale.h>
#ifdef USE_SQLITE3
# include <sqlite3.h>
#endif
#if defined(__FreeBSD__)
# include <libutil.h>
#elif defined(__NetBSD__)
# include <util.h>
#elif defined(__APPLE__)
# include <unistd.h>
#else
# include <crypt.h>
#endif
#ifdef __linux__
# include <pty.h>
#endif
#include <fcntl.h>
#include <pwd.h>
#include <grp.h>
#include <time.h>
#include <errno.h>
#include <dirent.h>
#include <string.h>
#include <signal.h>
#include <assert.h>
#include <ctype.h>
#include <unistd.h>
#include <termios.h>
extern FILE* yyin;
extern int yyparse ();
/* global variables */
char * __progname;
int g_idle_alarm_enabled = 0;
int showplayers = 0;
int initplayer = 0;
void (*g_chain_winch)(int);
#ifndef USE_SQLITE3
int f_num = 0;
struct dg_user **users = NULL;
#endif
struct dg_user *me = NULL;
struct dg_banner banner;
static struct dg_watchcols default_watchcols[] = {
{SORTMODE_NONE, SORTMODE_NONE, 1, "", "%s)"},
{SORTMODE_USERNAME, SORTMODE_USERNAME, 4, "Username", "%-15s"},
{SORTMODE_GAMENUM, SORTMODE_GAMENUM, 21, "Game", "%-5s"},
{SORTMODE_WINDOWSIZE, SORTMODE_WINDOWSIZE, 28, " Size", "%s"},
{SORTMODE_STARTTIME, SORTMODE_STARTTIME, 37, "Start date & time", "%s"},
{SORTMODE_IDLETIME, SORTMODE_IDLETIME, 58, "Idle time", "%-10s"},
#ifdef USE_SHMEM
{SORTMODE_WATCHERS, SORTMODE_WATCHERS, 70, "Watchers", "%s"},
#endif
};
int color_remap[16] = {
COLOR_PAIR(9) | A_NORMAL,
COLOR_PAIR(COLOR_BLUE) | A_NORMAL,
COLOR_PAIR(COLOR_GREEN) | A_NORMAL,
COLOR_PAIR(COLOR_CYAN) | A_NORMAL,
COLOR_PAIR(COLOR_RED) | A_NORMAL,
COLOR_PAIR(COLOR_MAGENTA) | A_NORMAL,
COLOR_PAIR(COLOR_YELLOW) | A_NORMAL,
COLOR_PAIR(COLOR_BLACK) | A_NORMAL,
COLOR_PAIR(10) | A_BOLD,
COLOR_PAIR(COLOR_BLUE) | A_BOLD,
COLOR_PAIR(COLOR_GREEN) | A_BOLD,
COLOR_PAIR(COLOR_CYAN) | A_BOLD,
COLOR_PAIR(COLOR_RED) | A_BOLD,
COLOR_PAIR(COLOR_MAGENTA) | A_BOLD,
COLOR_PAIR(COLOR_YELLOW) | A_BOLD,
COLOR_PAIR(COLOR_WHITE) | A_BOLD,
};
static struct dg_watchcols *default_watchcols_list[DGL_MAXWATCHCOLS + 1];
struct dg_user *
cpy_me(struct dg_user *me)
{
struct dg_user *tmp = malloc(sizeof(struct dg_user));
if (tmp && me) {
#ifdef USE_SQLITE3
tmp->id = me->id;
#endif
if (me->username) tmp->username = strdup(me->username);
if (me->email) tmp->email = strdup(me->email);
if (me->env) tmp->env = strdup(me->env);
if (me->password) tmp->password = strdup(me->password);
tmp->flags = me->flags;
}
return tmp;
}
#ifndef HAVE_SETENV
int
mysetenv (const char* name, const char* value, int overwrite)
{
int retval;
char *buf = NULL;
if (getenv(name) == NULL || overwrite)
{
size_t len = strlen(name) + 1 + strlen(value) + 1; /* NAME=VALUE\0 */
buf = malloc(len);
snprintf(buf, len, "%s=%s", name, value);
retval = putenv(buf);
}
else
retval = -1;
return retval;
}
#else /* use native setenv */
# define mysetenv setenv
#endif
/* ************************************************************* */
/* for ttyrec */
void
ttyrec_getpty ()
{
#ifdef HAVE_OPENPTY
if (openpty (&master, &slave, NULL, NULL, NULL) == -1) {
debug_write("cannot openpty");
graceful_exit (61);
}
#else
if ((master = open ("/dev/ptmx", O_RDWR)) < 0) {
debug_write("cannot open /dev/ptmx");
graceful_exit (62);
}
grantpt (master);
unlockpt (master);
if ((slave = open ((const char *) ptsname (master), O_RDWR)) < 0)
{
debug_write("cannot open master ptsname");
graceful_exit (65);
}
#endif
ioctl (slave, TIOCSWINSZ, (char *) &win);
tcsetattr(slave, TCSANOW, &tt);
}
/* ************************************************************* */
static int dgl_signal_blocked = 0;
static sigset_t dgl_signal_blockmask;
static sigset_t dgl_signal_oldmask;
void
signals_block()
{
if (!dgl_signal_blocked) {
sigemptyset(&dgl_signal_blockmask);
sigaddset(&dgl_signal_blockmask, SIGHUP);
sigaddset(&dgl_signal_blockmask, SIGINT);
sigaddset(&dgl_signal_blockmask, SIGQUIT);
sigaddset(&dgl_signal_blockmask, SIGTERM);
sigprocmask(SIG_BLOCK, &dgl_signal_blockmask, &dgl_signal_oldmask);
dgl_signal_blocked = 1;
}
}
void
signals_release()
{
if (dgl_signal_blocked) {
sigprocmask(SIG_SETMASK, &dgl_signal_oldmask, NULL);
dgl_signal_blocked = 0;
}
}
/* ************************************************************* */
char *
get_mainmenu_name()
{
if (loggedin) {
if (me && (me->flags & DGLACCT_ADMIN)) return "mainmenu_admin";
return "mainmenu_user";
}
return "mainmenu_anon";
}
char*
gen_ttyrec_filename ()
{
time_t rawtime;
struct tm *ptm;
char *ttyrec_filename = calloc(100, sizeof(char));
/* append time to filename */
time (&rawtime);
ptm = gmtime (&rawtime);
snprintf (ttyrec_filename, 100, "%04i-%02i-%02i.%02i:%02i:%02i.ttyrec",
ptm->tm_year + 1900, ptm->tm_mon + 1, ptm->tm_mday,
ptm->tm_hour, ptm->tm_min, ptm->tm_sec);
return ttyrec_filename;
}
/* ************************************************************* */
char*
gen_inprogress_lock (int game, pid_t pid, char* ttyrec_filename)
{
char *lockfile = NULL, filebuf[80];
int fd;
size_t len, wrlen;
struct flock fl = { 0 };
snprintf (filebuf, sizeof(filebuf), "%d\n%d\n%d\n",
pid, win.ws_row, win.ws_col);
wrlen = strlen(filebuf);
fl.l_type = F_WRLCK;
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0;
len = strlen(dgl_format_str(game, me, myconfig[game]->inprogressdir, NULL)) + strlen(me->username) + strlen(ttyrec_filename) + 13;
lockfile = calloc(len, sizeof(char));
snprintf (lockfile, len, "%s%s:%s", dgl_format_str(game, me, myconfig[game]->inprogressdir, NULL),
me->username, ttyrec_filename);
fd = open (lockfile, O_WRONLY | O_CREAT, 0644);
if (fcntl (fd, F_SETLKW, &fl) == -1) {
debug_write("cannot fnctl inprogress-lock");
graceful_exit (68);
}
if (write (fd, filebuf, wrlen) != wrlen) {
debug_write("inprogress-lock write");
graceful_exit(70);
}
return lockfile;
}
/* ************************************************************* */
#ifdef USE_SHMEM
int hup_shm_idx = -1;
char *hup_shm_ttyrec_fn = NULL;
#endif
void
catch_sighup (int signum)
{
if (child)
{
sleep (10);
kill (child, SIGHUP);
sleep (5);
}
#ifdef USE_SHMEM
signals_block();
if (hup_shm_idx != -1) {
struct dg_shm *shm_dg_data = NULL;
struct dg_shm_game *shm_dg_game = NULL;
shm_init(&shm_dg_data, &shm_dg_game);
shm_sem_wait(shm_dg_data);
if (shm_dg_game[hup_shm_idx].in_use &&
!strcmp(shm_dg_game[hup_shm_idx].ttyrec_fn, hup_shm_ttyrec_fn) &&
(shm_dg_game[hup_shm_idx].nwatchers > 0)) {
shm_dg_game[hup_shm_idx].nwatchers--;
}
shm_sem_post(shm_dg_data);
hup_shm_idx = -1;
free(hup_shm_ttyrec_fn);
}
signals_release();
#endif
debug_write("catchup sighup");
graceful_exit (7);
}
/* ************************************************************* */
int
dgl_getch(void)
{
const int c = getch();
idle_alarm_reset();
return c;
}
/* ************************************************************* */
static void
dgl_idle_kill(int signal)
{
kill(0, SIGHUP);
}
void
idle_alarm_set_enabled(int enabled)
{
signal(SIGALRM, SIG_IGN);
g_idle_alarm_enabled = enabled;
idle_alarm_reset();
if (enabled)
signal(SIGALRM, dgl_idle_kill);
}
void
idle_alarm_reset(void)
{
if (g_idle_alarm_enabled && globalconfig.menu_max_idle_time > 0)
alarm(globalconfig.menu_max_idle_time);
}
/* ************************************************************* */
char *
bannerstrmangle(char *buf, char *bufnew, int buflen, char *fromstr, char *tostr)
{
char *loc;
char *b = buf;
memset (bufnew, 0, buflen);
if (strstr(b, fromstr)) {
int i = 0;
while ((loc = strstr (b, fromstr)) != NULL) {
for (; i < buflen; i++) {
if (loc != b)
bufnew[i] = *(b++);
else {
strlcat (bufnew, tostr, buflen);
b += strlen(fromstr);
i += strlen(tostr);
break;
}
if (strlen (b) == 0)
break;
}
}
if (*b)
strlcat(bufnew, b, buflen);
} else strncpy(bufnew, buf, buflen);
return bufnew;
}
void
banner_var_add(char *name, char *value, int special)
{
struct dg_banner_var *tmp = (struct dg_banner_var *)malloc(sizeof(struct dg_banner_var));
if (!tmp) return;
tmp->name = strdup(name);
tmp->value = strdup(value);
tmp->special = special;
tmp->next = globalconfig.banner_var_list;
globalconfig.banner_var_list = tmp;
}
void
banner_var_free()
{
struct dg_banner_var *tmp;
struct dg_banner_var *bv = globalconfig.banner_var_list;
while (bv) {
tmp = bv->next;
free(bv->name);
free(bv->value);
free(bv);
bv = tmp;
}
globalconfig.banner_var_list = NULL;
}
char *
banner_var_resolve(struct dg_banner_var *bv)
{
static char tmpbuf[DGL_BANNER_LINELEN+1];
time_t tstamp;
struct tm *ptm;
if (!bv) return NULL;
if (!bv->special) return bv->value;
time(&tstamp);
ptm = gmtime(&tstamp);
strftime(tmpbuf, DGL_BANNER_LINELEN, bv->value, ptm);
return tmpbuf;
}
char *
banner_var_value(char *name)
{
struct dg_banner_var *bv = globalconfig.banner_var_list;
while (bv) {
if (!strcmp(bv->name, name)) return banner_var_resolve(bv);
bv = bv->next;
}
return NULL;
}
void
freebanner(struct dg_banner *ban)
{
unsigned int l;
if (!ban) return;
l = ban->len;
while (l > 0) {
l--;
free(ban->lines[l]);
}
free(ban->lines);
ban->len = 0;
ban->lines = NULL;
}
void
banner_addline(struct dg_banner *ban, char *line)
{
size_t len = strlen(line);
if (!ban) return;
ban->len++;
ban->lines = realloc (ban->lines, sizeof (char *) * ban->len);
if (len >= DGL_BANNER_LINELEN) {
len = DGL_BANNER_LINELEN;
ban->lines[ban->len - 1] = malloc(len);
strncpy(ban->lines[ban->len - 1], line, len);
ban->lines[ban->len - 1][len-1] = '\0';
} else
ban->lines[ban->len - 1] = strdup(line);
}
void
loadbanner (char *fname, struct dg_banner *ban)
{
FILE *bannerfile;
char buf[DGL_BANNER_LINELEN+1];
if (ban->len > 23) return;
memset (buf, 0, DGL_BANNER_LINELEN);
bannerfile = fopen (fname, "r");
if (!bannerfile)
{
if (ban->len == 0)
banner_addline(ban, "### dgamelaunch " PACKAGE_VERSION " - network console game launcher");
snprintf(buf, DGL_BANNER_LINELEN, "### NOTE: administrator has not installed a %s file", fname);
banner_addline(ban, buf);
return;
}
while (fgets (buf, DGL_BANNER_LINELEN, bannerfile) != NULL)
{
char bufnew[DGL_BANNER_LINELEN+1];
int slen;
memset (bufnew, 0, DGL_BANNER_LINELEN);
slen = strlen(buf);
if ((slen > 0) && (buf[slen-1] == '\n')) buf[slen-1] = '\0';
strncpy(bufnew, buf, DGL_BANNER_LINELEN);
if (strstr(bufnew, "$INCLUDE(")) {
char *fn = bufnew + 9;
char *fn_end = strchr(fn, ')');
if (fn_end) {
*fn_end = '\0';
if (strcmp(fname, fn)) {
loadbanner(fn, ban);
}
}
} else {
char tmpbufnew[DGL_BANNER_LINELEN+1];
struct dg_banner_var *bv = globalconfig.banner_var_list;
while (bv) {
strncpy(bufnew, bannerstrmangle(bufnew, tmpbufnew, DGL_BANNER_LINELEN, bv->name, banner_var_resolve(bv)), DGL_BANNER_LINELEN);
bv = bv->next;
}
strncpy(bufnew, bannerstrmangle(bufnew, tmpbufnew, DGL_BANNER_LINELEN, "$VERSION", PACKAGE_STRING), DGL_BANNER_LINELEN);
if (me && loggedin) {
strncpy(bufnew, bannerstrmangle(bufnew, tmpbufnew, DGL_BANNER_LINELEN, "$USERNAME", me->username), DGL_BANNER_LINELEN);
} else {
strncpy(bufnew, bannerstrmangle(bufnew, tmpbufnew, DGL_BANNER_LINELEN, "$USERNAME", "[Anonymous]"), DGL_BANNER_LINELEN);
}
banner_addline(ban, bufnew);
}
memset (buf, 0, DGL_BANNER_LINELEN);
if (ban->len >= 24)
break;
}
fclose (bannerfile);
}
void
drawbanner (struct dg_banner *ban)
{
unsigned int i;
char *tmpch, *tmpch2, *splch;
int attr = 0, oattr = 0;
if (!ban) return;
for (i = 0; i < ban->len; i++) {
char *tmpbuf = strdup(ban->lines[i]);
char *tmpbuf2 = tmpbuf;
int ok = 0;
int x = 1;
do {
ok = 0;
if ((tmpch = strstr(tmpbuf2, "$ATTR("))) {
if ((tmpch2 = strstr(tmpch, ")"))) {
int spl = 0;
char *nxttmpch;
ok = 1;
oattr = attr;
attr = A_NORMAL;
*tmpch = *tmpch2 = '\0';
tmpch += 6;
nxttmpch = tmpch;
do {
spl = 0;
splch = strchr(tmpch, ';');
if (splch && *splch) {
spl = 1;
nxttmpch = splch;
*nxttmpch = '\0';
nxttmpch++;
}
if (tmpch && *tmpch) {
switch (*tmpch) {
default: break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
{
int num = atoi(tmpch);
if (num >= 0 && num <= 15)
attr |= color_remap[num];
}
break;
case 'b': attr |= A_BOLD; break;
case 's': attr |= A_STANDOUT; break;
case 'u': attr |= A_UNDERLINE; break;
case 'r': attr |= A_REVERSE; break;
case 'd': attr |= A_DIM; break;
}
} else attr = A_NORMAL;
tmpch = nxttmpch;
} while (spl);
mvaddstr(1 + i, x, tmpbuf2);
if (oattr) attroff(oattr);
if (attr) attron(attr);
x += strlen(tmpbuf2);
tmpch2++;
tmpbuf2 = tmpch2;
} else
mvaddstr (1 + i, x, tmpbuf2);
} else
mvaddstr (1 + i, x, tmpbuf2);
} while (ok);
free(tmpbuf);
}
}
void
shm_sem_wait(struct dg_shm *shm_dg_data)
{
#ifdef USE_SHMEM
if (sem_wait(&(shm_dg_data->dg_sem)) == -1) {
debug_write("sem_wait");
graceful_exit(77);
}
#endif
}
void
shm_sem_post(struct dg_shm *shm_dg_data)
{
#ifdef USE_SHMEM
if (sem_post(&(shm_dg_data->dg_sem)) == -1) {
debug_write("sem_post");
graceful_exit(78);
}
#endif
}
void
shm_update(struct dg_shm *shm_dg_data, struct dg_game **games, int len)
{
#ifdef USE_SHMEM
int di, i;
struct dg_shm_game *shm_dg_game = (struct dg_shm_game *)(shm_dg_data + sizeof(struct dg_shm));
signals_block();
shm_sem_wait(shm_dg_data);
for (di = 0; di < shm_dg_data->max_n_games; di++)
if (shm_dg_game[di].in_use) {
int delgame = 1;
for (i = 0; i < len; i++) {
if (!strcmp(games[i]->ttyrec_fn, shm_dg_game[di].ttyrec_fn)) {
delgame = 0;
games[i]->is_in_shm = 1;
games[i]->shm_idx = di;
games[i]->nwatchers = shm_dg_game[di].nwatchers;
break;
}
}
if (delgame) {
shm_dg_game[di].in_use = 0;
if (shm_dg_data->cur_n_games > 0) shm_dg_data->cur_n_games--;
}
}
if (shm_dg_data->cur_n_games < shm_dg_data->max_n_games) {
for (i = 0; i < len; i++)
if (!games[i]->is_in_shm) {
for (di = 0; di < shm_dg_data->max_n_games; di++)
if (!shm_dg_game[di].in_use) {
shm_dg_game[di].in_use = 1;
shm_dg_game[di].nwatchers = 0;
games[i]->nwatchers = 0;
games[i]->is_in_shm = 1;
games[i]->shm_idx = di;
shm_dg_data->cur_n_games++;
strncpy(shm_dg_game[di].ttyrec_fn, games[i]->ttyrec_fn, 150);
break;
}
}
}
shm_sem_post(shm_dg_data);
signals_release();
#endif
}
void
shm_mk_keys(key_t *shm_key, key_t *shm_sem_key)
{
#ifdef USE_SHMEM
if ((*shm_key = ftok(globalconfig.passwd, 'R')) == -1) {
debug_write("ftok shm_key");
graceful_exit(71);
}
if ((*shm_sem_key = ftok(globalconfig.passwd, 'S')) == -1) {
debug_write("ftok shm_sem_key");
graceful_exit(72);
}
#endif
}
#ifdef USE_SHMEM
int
shm_free()
{
key_t shm, sem;
int shm_id;
int shm_size = sizeof(struct dg_shm) + shm_n_games * sizeof(struct dg_shm_game);
shm_mk_keys(&shm, &sem);
if ((shm_id = shmget(shm, shm_size, 0644)) != -1) {
shmctl(shm_id, IPC_RMID, NULL);
return 0;
}
return 1;
}
#endif
void
shm_init(struct dg_shm **shm_dg_data, struct dg_shm_game **shm_dg_game)
{
#ifdef USE_SHMEM
key_t shm_key;
key_t shm_sem_key;
int shm_id;
int shm_size;
void *shm_data = NULL;
int shm_data_existed = 0;
shm_mk_keys(&shm_key, &shm_sem_key);
/* max. shm_n_games simultaneous games recorded in the shared memory */
shm_size = sizeof(struct dg_shm) + shm_n_games * sizeof(struct dg_shm_game);
/* connect to (and possibly create) the segment */
if ((shm_id = shmget(shm_key, shm_size, 0644 | IPC_CREAT | IPC_EXCL)) == -1) {
/* creation failed, so it already exists. attach to it */
shm_data_existed = 1;
if ((shm_id = shmget(shm_key, shm_size, 0644)) == -1) {
debug_write("shmget");
graceful_exit(73);
}
}
/* attach to the segment to get a pointer to it: */
shm_data = shmat(shm_id, (void *)0, 0);
if (shm_data == (char *)(-1)) {
debug_write("shmat");
graceful_exit(74);
}
if (!shm_data) {
debug_write("shm_data == null");
graceful_exit(75);
}
(*shm_dg_data) = (struct dg_shm *)shm_data;
(*shm_dg_game) = (struct dg_shm_game *)((*shm_dg_data) + sizeof(struct dg_shm));
if (!shm_data_existed && shm_data) {
memset(*shm_dg_game, 0, shm_n_games*sizeof(struct dg_shm_game));
(*shm_dg_data)->max_n_games = shm_n_games;
(*shm_dg_data)->cur_n_games = 0;
if (sem_init(&((*shm_dg_data)->dg_sem), 1,1) == -1) {
debug_write("sem_init");
graceful_exit(76);
}
}
#endif /* USE_SHMEM */
}
#ifdef USE_SHMEM
void
shm_dump()
{
struct dg_shm *shm_dg_data = NULL;
struct dg_shm_game *shm_dg_game = NULL;
int di, unused = -1;
shm_init(&shm_dg_data, &shm_dg_game);
shm_sem_wait(shm_dg_data);
for (di = 0; di < shm_dg_data->max_n_games; di++) {
if (shm_dg_game[di].in_use) {
if (unused != -1) {
if (unused != di-1)
fprintf(stderr, "%i-%i:\tunused\n", unused, di-1);
else
fprintf(stderr, "%i:\tunused\n", unused);
unused = -1;
}
fprintf(stderr, "%i:\t\"%s\"\twatchers:%li\n", di, shm_dg_game[di].ttyrec_fn, shm_dg_game[di].nwatchers);
} else {
if (unused == -1) unused = di;
}
}
if (unused != -1) {
if (unused != di-1)
fprintf(stderr, "%i-%i:\tunused\n", unused, di-1);
else
fprintf(stderr, "%i:\tunused\n", unused);
unused = -1;
}
shm_sem_post(shm_dg_data);
shmdt(shm_dg_data);
}
#endif
static
struct dg_watchcols **
globalconfig_watch_columns()
{
if (globalconfig.n_watch_columns)
return globalconfig.watch_columns;
if (!*default_watchcols_list) {
int i;
for (i = 0; i < ARRAY_SIZE(default_watchcols); ++i)
default_watchcols_list[i] = &default_watchcols[i];
}
return default_watchcols_list;
}
static
int
watchcol_find_index(struct dg_watchcols **watchcols,
int sortmode)
{
int i;
for (i = 0; watchcols[i]; ++i)
if (watchcols[i]->sortmode == sortmode)
return i;
return -1;
}
static
void
sortmode_increment(struct dg_watchcols **watchcols,
dg_sortmode *sortmode,
int direction)
{
int watch_column_index = watchcol_find_index(watchcols, *sortmode);
int n_watchcols;
int wrap_count = 0;
const dg_sortmode old_sortmode = *sortmode;
for (n_watchcols = 0; watchcols[n_watchcols]; ++n_watchcols)
;
if (watch_column_index == -1 || !n_watchcols)
return;
do {
watch_column_index += direction;
if (watch_column_index < 0) {
watch_column_index = n_watchcols - 1;
++wrap_count;
} else if (watch_column_index >= n_watchcols) {
watch_column_index = 0;
++wrap_count;
}
*sortmode = watchcols[watch_column_index]->sortmode;
} while (wrap_count < 2 && !*sortmode);
if (!*sortmode)
*sortmode = old_sortmode;
}
char *
get_timediff(time_t ctime, long seconds)
{
static char data[32];
long secs, mins, hours;
secs = (ctime - seconds);
if (showplayers) {
snprintf(data, 10, "%ld", secs);
return data;
}
hours = (secs / 3600);
secs -= (hours * 3600);
mins = (secs / 60) % 60;
secs -= (mins*60);
if (hours)
snprintf(data, 10, "%ldh %ldm", hours, mins);
else if (mins)
snprintf(data, 10, "%ldm %lds", mins, secs);
else if (secs > 4)
snprintf(data, 30, "%lds", secs);
else
snprintf(data, 10, " ");
return data;
}
static
void
game_get_column_data(struct dg_game *game,
char selectorchar,
time_t ctime, struct dg_shm_game *shm_dg_game,
char *data, int bufsz, int *hilite,
dg_sortmode which_data)
{
*data = 0;
switch (which_data) {
default: break;
case SORTMODE_NONE:
data[0] = selectorchar; data[1] = '\0';
break;
case SORTMODE_USERNAME:
snprintf(data, bufsz, "%s", game->name);
break;
case SORTMODE_GAMENUM:
snprintf(data, bufsz, "%s",
myconfig[game->gamenum]->shortname);
break;
case SORTMODE_WINDOWSIZE:
snprintf(data, bufsz, "%3dx%3d", game->ws_col, game->ws_row);
if (showplayers)
snprintf(data, bufsz, "%dx%d", game->ws_col, game->ws_row);
else
snprintf(data, bufsz, "%3dx%3d", game->ws_col, game->ws_row);
if ((game->ws_col > COLS || game->ws_row > LINES))
*hilite = CLR_RED;
break;
case SORTMODE_STARTTIME:
snprintf(data, bufsz, "%s %s", game->date,
game->time);
break;
case SORTMODE_DURATION:
{
/* TODO: populate_games() should put st_ctime into game struct */
struct tm timetm;
char tmptimebuf[32];
snprintf(tmptimebuf, 30, "%s %s", game->date, game->time);
tmptimebuf[31] = '\0';
strptime(tmptimebuf, "%Y-%m-%d %H:%M:%S", &timetm);
snprintf(data, 10, "%s", get_timediff(ctime, mktime(&timetm)));
}
break;
case SORTMODE_IDLETIME:
snprintf(data, 10, "%s", get_timediff(ctime, game->idle_time));
break;
case SORTMODE_EXTRA_INFO:
if (game->extra_info)
strlcpy(data, game->extra_info, bufsz);
break;
#ifdef USE_SHMEM
case SORTMODE_WATCHERS:
snprintf(data, bufsz, "%li",
(game->is_in_shm ?
shm_dg_game[game->shm_idx].nwatchers : -1));
break;
#endif
}
data[bufsz - 1] = '\0';
}
void
inprogressmenu (int gameid)
{