static enum cmd_retval
cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct client *c;
const char *size;
u_int w, h;
if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
return (CMD_RETURN_ERROR);
if (args_has(args, 'C')) {
if ((size = args_get(args, 'C')) == NULL) {
cmdq_error(item, "missing size");
return (CMD_RETURN_ERROR);
}
if (sscanf(size, "%u,%u", &w, &h) != 2) {
cmdq_error(item, "bad size argument");
return (CMD_RETURN_ERROR);
}
if (w < PANE_MINIMUM || w > 5000 ||
h < PANE_MINIMUM || h > 5000) {
cmdq_error(item, "size too small or too big");
return (CMD_RETURN_ERROR);
}
if (!(c->flags & CLIENT_CONTROL)) {
cmdq_error(item, "not a control client");
return (CMD_RETURN_ERROR);
}
tty_set_size(&c->tty, w, h);
c->flags |= CLIENT_SIZECHANGED;
recalculate_sizes();
} else if (args_has(args, 'S')) {
c->flags |= CLIENT_STATUSFORCE;
server_status_client(c);
} else {
c->flags |= CLIENT_STATUSFORCE;
server_redraw_client(c);
}
return (CMD_RETURN_NORMAL);
}
int
tty_resize(struct tty *tty)
{
struct winsize ws;
u_int sx, sy;
if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
sx = ws.ws_col;
if (sx == 0)
sx = 80;
sy = ws.ws_row;
if (sy == 0)
sy = 24;
} else {
sx = 80;
sy = 24;
}
if (!tty_set_size(tty, sx, sy))
return (0);
tty->cx = UINT_MAX;
tty->cy = UINT_MAX;
tty->rupper = UINT_MAX;
tty->rlower = UINT_MAX;
/*
* If the terminal has been started, reset the actual scroll region and
* cursor position, as this may not have happened.
*/
if (tty->flags & TTY_STARTED) {
tty_cursor(tty, 0, 0);
tty_region(tty, 0, tty->sy - 1);
}
return (1);
}
/* Changed the argv0 and execlp stuff similar to rxvt-2.18.
* Command is ignored as parameter. Matthias */
int run_command(unsigned char *command,unsigned char **argv)
{
int ptyfd=-1;
int uid, gid;
int grantpty=1;
unsigned char *s3, *s4;
int i;
int width, height;
#ifndef SVR4
static char ptyc3[] = "pqrstuvwxyz";
static char ptyc4[] = "0123456789abcdef";
#endif
/* First find a master pty that we can open.
*/
#if __GLIBC__ - 0 == 2 && __GLIBC_MINOR__ >= 1
ptyfd = getpt();
if (ptyfd < 0)
{
error("Can't open a pseudo teletype");
return(-1);
}
if (grantpt(ptyfd) < 0 || unlockpt(ptyfd) < 0)
{
close(ptyfd);
error("Can't grantpt/unlockpt a pseudo teletype");
return(-1);
}
ttynam = ptsname(ptyfd);
if (ttynam == 0)
{
close(ptyfd);
error("Pseudo teletype has no name");
return(-1);
}
fcntl(ptyfd,F_SETFL,O_NDELAY);
grantpty = 0;
#else
#ifdef TIOCGPTN
strcpy(ptynam,"/dev/ptmx");
strcpy(ttynam,"/dev/pts/");
ptyfd = open(ptynam,O_RDWR);
if (ptyfd >= 0) // got the master pty
{ int ptyno;
if (ioctl(ptyfd, TIOCGPTN, &ptyno) == 0)
{ struct stat sbuf;
sprintf(ttynam,"/dev/pts/%d",ptyno);
if (stat(ttynam,&sbuf) == 0 && S_ISCHR(sbuf.st_mode))
grantpty = 0;
else
{
close(ptyfd);
ptyfd = -1;
}
}
else
{
close(ptyfd);
ptyfd = -1;
}
}
#endif
if (ptyfd < 0)
{
#ifdef SVR4
ptyfd = open("/dev/ptmx",O_RDWR);
if (ptyfd < 0)
{
error("Can't open a pseudo teletype");
return(-1);
}
grantpt(ptyfd);
unlockpt(ptyfd);
fcntl(ptyfd,F_SETFL,O_NDELAY);
ttynam=ptsname(ptyfd);
#else
strcpy(ptynam, "/dev/ptyxx");
strcpy(ttynam, "/dev/ttyxx");
ptyfd = -1;
for (s3 = ptyc3; *s3 != 0; s3++)
{
for (s4 = ptyc4; *s4 != 0; s4++)
{
ptynam[8] = ttynam[8] = *s3;
ptynam[9] = ttynam[9] = *s4;
if ((ptyfd = open(ptynam,O_RDWR)) >= 0)
{
if (geteuid() == 0 || access(ttynam,R_OK|W_OK) == 0)
break;
else
{
close(ptyfd);
ptyfd = -1;
}
}
}
if (ptyfd >= 0)
break;
}
if (ptyfd < 0)
{
error("Can't open a pseudo teletype");
return(-1);
}
fcntl(ptyfd,F_SETFL,O_NDELAY);
#endif
}
#endif /* GLIBC */
for (i = 1; i <= 15; i++)
signal(i,catch_sig);
signal(SIGCHLD,catch_child);
lstat(ttynam,&ttyfd_stat);
utime(ttynam,NULL);
makeutent(&ttynam[5]); /* stamp /etc/utmp */
comm_pid = fork();
if (comm_pid < 0)
{
error("Can't fork");
return(-1);
}
if (comm_pid == 0)
{
struct group *gr;
if ((ttyfd = open(ttynam,O_RDWR)) < 0)
{
error("could not open slave tty %s",ttynam);
clean_exit(1);
}
#ifdef SVR4
ioctl(ttyfd,I_PUSH,"ptem");
ioctl(ttyfd,I_PUSH,"ldterm");
#endif
uid = getuid();
#ifndef SVR4
if ((gr = getgrnam("tty")) != NULL)
gid = gr->gr_gid;
else
gid = -1;
if (grantpty)
{
// regain root privileges
seteuid(0);
fchown(ttyfd,uid,gid);
fchmod(ttyfd,0600);
// drop root privileges again
seteuid(getuid());
}
#endif
#ifdef TIOCCONS
if (console)
{
int on = 1;
if (ioctl (ttyfd, TIOCCONS, (unsigned char *)&on) == -1)
fprintf(stderr, "kvt: cannot open console\n");
}
#endif /* TIOCCONS */
#if defined(_HPUX_SOURCE) || defined (__Lynx__)
for (i = 0; i < sysconf(_SC_OPEN_MAX); i++)
if (i != ttyfd)
close(i);
#else
for (i = 0; i < getdtablesize(); i++)
if (i != ttyfd)
close(i);
#endif
dup(ttyfd);
dup(ttyfd);
dup(ttyfd);
if (ttyfd > 2)
close(ttyfd);
if (setsid() < 0)
perror("failed to set process group");
#if defined(TIOCSCTTY)
ioctl(0, TIOCSCTTY, 0) ;
#endif
{
int pgrp = getpid();
ioctl(0, TIOCSPGRP, (char *)&pgrp);
setpgid(0,0);
close(open(ttynam, O_WRONLY, 0));
setpgid(0,0);
}
/* init of termios structure */
#if defined (__FreeBSD__) || (__NetBSD__) || defined(__bsdi__)
ioctl(0,TIOCGETA,(char *)&ttmode);
#else
# if defined (_HPUX_SOURCE) || defined(__Lynx__)
tcgetattr(0, &ttmode);
# else
ioctl(0,TCGETS,(char *)&ttmode);
# endif
#endif
#if defined(_HPUX_SOURCE) || defined(__Lynx__)
ttmode.c_iflag = BRKINT | IGNPAR | ICRNL| IXON;
ttmode.c_lflag = ISIG|IEXTEN|ICANON|ECHO|ECHOE|ECHOK;
#else
ttmode.c_iflag = BRKINT | IGNPAR | ICRNL| IXON | IMAXBEL;
ttmode.c_lflag = ISIG|IEXTEN|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE;
#endif
ttmode.c_oflag = OPOST | ONLCR ;
ttmode.c_cflag = B9600 | CS8 | CREAD;
ttmode.c_cc[VEOF] = CEOF;
#ifdef ALPHA
(unsigned) ttmode.c_cc[VEOL] = CEOL;
#else
ttmode.c_cc[VEOL] = CEOL;
#endif
ttmode.c_cc[VINTR] = CINTR;
ttmode.c_cc[VQUIT] = CQUIT;
ttmode.c_cc[VERASE] = CERASE;
ttmode.c_cc[VKILL] = CKILL;
#if defined(_HPUX_SOURCE) || defined(__Lynx__)
ttmode.c_cc[VSUSP] = CSWTCH;
#else
ttmode.c_cc[VSUSP] = CSUSP;
#endif
#ifdef VDSUSP
ttmode.c_cc[VDSUSP] = CDSUSP;
#endif
ttmode.c_cc[VSTART] = CSTART;
ttmode.c_cc[VSTOP] = CSTOP;
#ifdef VREPRINT
ttmode.c_cc[VREPRINT] = CRPRNT;
#endif
#ifdef VDISCARD
ttmode.c_cc[VDISCARD] = CFLUSH;
#endif
#ifdef VWERASE
ttmode.c_cc[VWERASE] = CWERASE;
#endif
#ifdef VLNEXT
ttmode.c_cc[VLNEXT] = CLNEXT;
#endif
#ifdef VSWTC
ttmode.c_cc[VSWTC] = 0;
#endif
#ifdef VSWTCH
ttmode.c_cc[VSWTCH] = 0;
#endif
#if VMIN != VEOF
ttmode.c_cc[VMIN] = 1;
#endif
#if VTIME != VEOL
ttmode.c_cc[VTIME] = 0;
#endif
if(mask == 0x7f)
ttmode.c_cflag = B9600 | PARENB | CS7 | CREAD;
#if defined (__FreeBSD__) || (__NetBSD__) || defined(__bsdi__)
ioctl(0,TIOCSETA,(char *)&ttmode);
#else
# ifdef _HPUX_SOURCE
tcsetattr(0, TCSANOW, &ttmode);
# else
ioctl(0,TCSETS,(char *)&ttmode);
# endif
#endif
scr_get_size(&width,&height);
tty_set_size(0,width,height);
/* the stuff inspired from rxvt-2.18: */
/* command interpreter path */
if (argv != NULL)
{
setgid(getgid());
setuid(uid);
execvp (argv [0], (char **) argv);
error ("can't execute \"%s\"", argv [0]);
clean_exit(1);
}
else
{
const char *argv0, *shell;
char* base;
if ((shell = getenv ("SHELL")) == NULL || *shell == '\0')
shell = "/bin/sh";
base = strrchr (shell, '/');
argv0 = (base ? base + 1 : shell);
if (login_shell)
{
char * p = (char*) safemalloc((strlen (argv0)+2)*sizeof(char), argv0);
p [0] = '-';
strcpy (&p [1], argv0);
argv0 = p;
}
setgid(getgid());
setuid(uid);
execlp (shell, argv0, NULL);
error ("can't execute \"%s\"", shell);
clean_exit(1);
}
/* originally rvxt-2.08: (Matthias) */
/* if(login_shell) */
/* { */
/* char *tmp; */
/* strcpy(argv0,"-"); */
/* if ((tmp = strrchr(argv[0], '/')) == NULL) */
/* tmp = argv[0]; */
/* else */
/* tmp++; */
/* strcat(argv0,tmp); */
/* argv[0] = argv0; */
/* } */
/* setgid(getgid()); */
/* setuid(uid); */
/* execvp(command,(char **)argv); */
/* error("Couldn't execute %s",command); */
/* clean_exit(1); */
}
return(ptyfd);
}
static enum cmd_retval
cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct client *c;
struct tty *tty;
struct window *w;
const char *size, *errstr;
u_int x, y, adjust;
if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
return (CMD_RETURN_ERROR);
tty = &c->tty;
if (args_has(args, 'c') ||
args_has(args, 'L') ||
args_has(args, 'R') ||
args_has(args, 'U') ||
args_has(args, 'D'))
{
if (args->argc == 0)
adjust = 1;
else {
adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
if (errstr != NULL) {
cmdq_error(item, "adjustment %s", errstr);
return (CMD_RETURN_ERROR);
}
}
if (args_has(args, 'c'))
c->pan_window = NULL;
else {
w = c->session->curw->window;
if (c->pan_window != w) {
c->pan_window = w;
c->pan_ox = tty->oox;
c->pan_oy = tty->ooy;
}
if (args_has(args, 'L')) {
if (c->pan_ox > adjust)
c->pan_ox -= adjust;
else
c->pan_ox = 0;
} else if (args_has(args, 'R')) {
c->pan_ox += adjust;
if (c->pan_ox > w->sx - tty->osx)
c->pan_ox = w->sx - tty->osx;
} else if (args_has(args, 'U')) {
if (c->pan_oy > adjust)
c->pan_oy -= adjust;
else
c->pan_oy = 0;
} else if (args_has(args, 'D')) {
c->pan_oy += adjust;
if (c->pan_oy > w->sy - tty->osy)
c->pan_oy = w->sy - tty->osy;
}
}
tty_update_client_offset(c);
server_redraw_client(c);
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 'C')) {
if ((size = args_get(args, 'C')) == NULL) {
cmdq_error(item, "missing size");
return (CMD_RETURN_ERROR);
}
if (sscanf(size, "%u,%u", &x, &y) != 2 &&
sscanf(size, "%ux%u", &x, &y)) {
cmdq_error(item, "bad size argument");
return (CMD_RETURN_ERROR);
}
if (x < WINDOW_MINIMUM || x > WINDOW_MAXIMUM ||
y < WINDOW_MINIMUM || y > WINDOW_MAXIMUM) {
cmdq_error(item, "size too small or too big");
return (CMD_RETURN_ERROR);
}
if (!(c->flags & CLIENT_CONTROL)) {
cmdq_error(item, "not a control client");
return (CMD_RETURN_ERROR);
}
tty_set_size(&c->tty, x, y);
c->flags |= CLIENT_SIZECHANGED;
recalculate_sizes();
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 'S')) {
c->flags |= CLIENT_STATUSFORCE;
server_status_client(c);
} else {
c->flags |= CLIENT_STATUSFORCE;
server_redraw_client(c);
}
return (CMD_RETURN_NORMAL);
}