-/* See LICENSE for licence details. */
+/* See LICENSE for licence details. */
#include "st.h"
/* Globals */
Term term;
Escseq escseq;
int cmdfd;
+pid_t pid;
int running;
void
}
void
-xbell(void) { /* visual bell */
+xbell(void) { /* visual bell */
XRectangle r = { 0, 0, xw.w, xw.h };
XSetForeground(xw.dis, dc.gc, dc.col[BellCol]);
XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
- XFlush(xw.dis);
- usleep(30000);
+ /* usleep(30000); */
draw(SCredraw);
}
+void
+sigchld(int a) {
+ int stat = 0;
+ if(waitpid(pid, &stat, 0) < 0)
+ die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
+ if(WIFEXITED(stat))
+ exit(WEXITSTATUS(stat));
+ else
+ exit(EXIT_FAILURE);
+}
+
+
void
ttynew(void) {
int m, s;
- pid_t pid;
char *pts;
if((m = posix_openpt(O_RDWR | O_NOCTTY)) < 0)
- die("openpt");
- if(grantpt(m) == -1)
- die("grandpt");
- if(unlockpt(m) == -1)
- die("unlockpt");
- if((pts = ptsname(m)) == NULL)
- die("ptsname");
+ die("openpt failed: %s\n", SERRNO);
+ if(grantpt(m) < 0)
+ die("grandpt failed: %s\n", SERRNO);
+ if(unlockpt(m) < 0)
+ die("unlockpt failed: %s\n", SERRNO);
+ if(!(pts = ptsname(m)))
+ die("ptsname failed: %s\n", SERRNO);
if((s = open(pts, O_RDWR | O_NOCTTY)) < 0)
- die("slave open");
+ die("Couldn't open slave: %s\n", SERRNO);
fcntl(s, F_SETFL, O_NDELAY);
switch(pid = fork()) {
case -1:
- die("fork");
+ die("fork failed\n");
break;
case 0:
setsid(); /* create a new process group */
dup2(s, STDOUT_FILENO);
dup2(s, STDERR_FILENO);
if(ioctl(s, TIOCSCTTY, NULL) < 0)
- die("slave TTIOCSTTY");
+ die("ioctl TTIOCSTTY failed: %s\n", SERRNO);
execsh();
break;
default:
close(s);
cmdfd = m;
+ signal(SIGCHLD, sigchld);
}
}
int ret;
switch(ret = read(cmdfd, buf, BUFSIZ)) {
- case -1: /* error or exit */
- /* XXX: be more precise */
- running = 0;
+ case -1:
+ die("Couldn't read from shell: %s\n", SERRNO);
break;
default:
tputs(buf, ret);
void
ttywrite(char *s, size_t n) {
if(write(cmdfd, s, n) == -1)
- die("write error on tty.");
+ die("write error on tty: %s\n", SERRNO);
}
void
w.ws_col = term.col;
w.ws_xpixel = w.ws_ypixel = 0;
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
- fprintf(stderr, "Couldn't set window size: %m\n");
+ fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
}
int
}
else if(BETWEEN(c, 0x40, 0x7E))
return 1;
- return 0;
+ return 0;
}
void
term.line[i] = term.line[i+1];
memset(temp, 0, sizeof(Glyph) * term.col);
term.line[term.bot] = temp;
- xscroll();
+ xscroll();
}
void
term.c.attr.bg = DefaultBG;
break;
case 1:
- term.c.attr.mode |= ATbold;
+ term.c.attr.mode |= ATbold;
break;
case 4:
term.c.attr.mode |= ATunderline;
break;
case 7:
- term.c.attr.mode |= ATreverse;
+ term.c.attr.mode |= ATreverse;
break;
case 8:
term.c.hidden = CShide;
term.c.attr.mode &= ~ATunderline;
break;
case 27:
- term.c.attr.mode &= ~ATreverse;
+ term.c.attr.mode &= ~ATreverse;
break;
case 39:
term.c.attr.fg = DefaultFG;
b = temp;
}
term.top = t;
- term.bot = b;
+ term.bot = b;
}
break;
case 2: /* all */
tclearregion(0, 0, term.col-1, term.row-1);
- break;
+ break;
}
break;
case 'K': /* Clear line */
DEFAULT(escseq.arg[0], 1);
tinsertblankline(escseq.arg[0]);
break;
+ case 'l':
+ if(escseq.priv && escseq.arg[0] == 25)
+ term.c.hidden = 1;
+ break;
case 'M': /* Delete <n> lines */
DEFAULT(escseq.arg[0], 1);
tdeleteline(escseq.arg[0]);
tmoveto(term.c.x, escseq.arg[0]-1);
break;
case 'h': /* Set terminal mode */
+ if(escseq.priv && escseq.arg[0] == 25)
+ term.c.hidden = 0;
break;
case 'm': /* Terminal attribute (color) */
tsetattr(escseq.arg, escseq.narg);
escdump(void) {
int i;
puts("------");
- printf("rawbuf : %s\n", escseq.buf);
+ printf("rawbuf : %s\n", escseq.buf);
printf("prechar : %c\n", escseq.pre);
printf("private : %c\n", escseq.priv ? '?' : ' ');
- printf("narg : %d\n", escseq.narg);
+ printf("narg : %d\n", escseq.narg);
if(escseq.narg) {
for(i = 0; i < escseq.narg; i++)
printf("\targ %d = %d\n", i, escseq.arg[i]);
}
- printf("mode : %c\n", escseq.mode);
+ printf("mode : %c\n", escseq.mode);
}
void
void
tputtab(void) {
- int space = TAB - term.c.x % TAB;
-
- if(term.c.x + space >= term.col)
- space--;
-
- for(; space > 0; space--)
- tcursor(CSright);
+ int space = TAB - term.c.x % TAB;
+
+ if(term.c.x + space >= term.col)
+ space--;
+
+ for(; space > 0; space--)
+ tcursor(CSright);
}
void
tputc(char c) {
static int inesc = 0;
-
+#if 0
dump(c);
+#endif
/* start of escseq */
if(c == '\033')
escreset(), inesc = 1;
tsetchar(c);
tcursor(CSright);
break;
- case '\t':
- tputtab();
- break;
+ case '\t':
+ tputtab();
+ break;
case '\b':
tcursor(CSleft);
break;
if(col < 1 || row < 1)
return;
+ /* alloc */
line = calloc(row, sizeof(Line));
for(i = 0 ; i < row; i++)
line[i] = calloc(col, sizeof(Glyph));
- for(i = 0 ; i < minrow; i++) {
+ /* copy */
+ for(i = 0 ; i < minrow; i++)
memcpy(line[i], term.line[i], mincol * sizeof(Glyph));
+ /* free */
+ for(i = 0; i < term.row; i++)
free(term.line[i]);
- }
free(term.line);
+
LIMIT(term.c.x, 0, col-1);
LIMIT(term.c.y, 0, row-1);
LIMIT(term.top, 0, row-1);
LIMIT(term.bot, 0, row-1);
- // if(term.bot == term.row-1)
+
term.bot = row-1;
term.line = line;
term.col = col, term.row = row;
xw.dis = XOpenDisplay(NULL);
xw.scr = XDefaultScreen(xw.dis);
- if(!xw.dis)
- die("can not open display");
-
+ if(!xw.dis)
+ die("can not open display");
+
/* font */
if(!(dc.font = XLoadQueryFont(xw.dis, FONT)))
- die("can not find font " FONT);
+ die("can not find font " FONT);
xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
xw.ch = dc.font->ascent + dc.font->descent + LINESPACE;
term.c.attr.bg = DefaultBG;
term.c.attr.mode = ATnone;
/* windows */
- xw.h = term.row * xw.ch;
+ xw.h = term.row * xw.ch;
xw.w = term.col * xw.cw;
/* XXX: this BORDER is useless after the first resize, handle it in xdraws() */
xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint);
XStoreName(xw.dis, xw.win, TNAME);
XSync(xw.dis, 0);
-
}
void
/* string */
XSetForeground(xw.dis, dc.gc, xfg);
XDrawString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &(g.c), 1);
- if(g.mode & ATbold) /* XXX: bold hack (draw again at x+1) */
+ if(g.mode & ATbold) /* XXX: bold hack (draw again at x+1) */
XDrawString(xw.dis, xw.win, dc.gc, r.x+1, r.y+dc.font->ascent, &(g.c), 1);
/* underline */
if(g.mode & ATunderline) {
static int oldx = 0;
static int oldy = 0;
Glyph g = {' ', ATnone, DefaultBG, DefaultCS, 0};
-
+
+ LIMIT(oldx, 0, term.col-1);
+ LIMIT(oldy, 0, term.row-1);
+
if(term.line[term.c.y][term.c.x].state & CRset)
g.c = term.line[term.c.y][term.c.x].c;
/* remove the old cursor */
int meta;
int shift;
- meta = e->state & Mod4Mask;
+ meta = e->state & Mod1Mask;
shift = e->state & ShiftMask;
len = XLookupString(e, buf, sizeof(buf), &ksym, NULL);
if(len > 0) {
return;
}
switch(ksym) {
-#ifdef DEBUG1
default:
- printf("errkey: %d\n", (int)ksym);
+ fprintf(stderr, "errkey: %d\n", (int)ksym);
break;
-#endif
case XK_Up:
case XK_Down:
case XK_Left:
ttywrite(buf, 3);
break;
case XK_Delete: ttywrite(KEYDELETE, sizeof(KEYDELETE)-1); break;
- case XK_Home: ttywrite( KEYHOME, sizeof( KEYHOME)-1); break;
- case XK_End: ttywrite( KEYEND, sizeof( KEYEND)-1); break;
- case XK_Prior: ttywrite( KEYPREV, sizeof( KEYPREV)-1); break;
- case XK_Next: ttywrite( KEYNEXT, sizeof( KEYNEXT)-1); break;
+ case XK_Home: ttywrite(KEYHOME, sizeof(KEYHOME)-1); break;
+ case XK_End: ttywrite(KEYEND, sizeof(KEYEND) -1); break;
+ case XK_Prior: ttywrite(KEYPREV, sizeof(KEYPREV)-1); break;
+ case XK_Next: ttywrite(KEYNEXT, sizeof(KEYNEXT)-1); break;
case XK_Insert:
/* XXX: paste X clipboard */
- if(shift);
+ if(shift)
+ ;
break;
}
}
int col, row;
col = e->xconfigure.width / xw.cw;
row = e->xconfigure.height / xw.ch;
-
- if(term.col != col && term.row != row) {
+
+ if(term.col != col || term.row != row) {
tresize(col, row);
ttyresize(col, row);
xw.w = e->xconfigure.width;
int ret;
XEvent ev;
fd_set rfd;
- struct timeval tv = {0, 10000};
+ int xfd = XConnectionNumber(xw.dis);
running = 1;
XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask | StructureNotifyMask);
- XResizeWindow(xw.dis, xw.win, xw.w , xw.h); /* seems to fix the resize bug in wmii */
+ XResizeWindow(xw.dis, xw.win, xw.w , xw.h); /* fix resize bug in wmii (?) */
+
while(running) {
- while(XPending(xw.dis)) {
- XNextEvent(xw.dis, &ev);
- switch (ev.type) {
- default:
- break;
- case KeyPress:
- kpress(&ev.xkey);
- break;
- case Expose:
- draw(SCredraw);
- break;
- case ConfigureNotify:
- resize(&ev);
- break;
- }
- }
FD_ZERO(&rfd);
FD_SET(cmdfd, &rfd);
- ret = select(cmdfd+1, &rfd, NULL, NULL, &tv);
- if(ret < 0) {
- fprintf(stderr, "select: %m\n");
- running = 0;
+ FD_SET(xfd, &rfd);
+ XFlush(xw.dis);
+ ret = select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL);
+
+ if(ret < 0)
+ die("select failed: %s\n", SERRNO);
+
+ if(FD_ISSET(xfd, &rfd)) {
+ while(XPending(xw.dis)) {
+ XNextEvent(xw.dis, &ev);
+ switch (ev.type) {
+ default:
+ break;
+ case KeyPress:
+ kpress(&ev.xkey);
+ break;
+ case Expose:
+ draw(SCredraw);
+ break;
+ case ConfigureNotify:
+ resize(&ev);
+ break;
+ }
+ }
}
- if(!ret)
- continue;
if(FD_ISSET(cmdfd, &rfd)) {
ttyread();
draw(SCupdate);
else if(argc != 1)
die("usage: st [-v]\n");
setlocale(LC_CTYPE, "");
- tnew(80, 24);
- ttynew();
- xinit();
- run();
+ tnew(80, 24);
+ ttynew();
+ xinit();
+ run();
return 0;
}
