added some error checking in xinit (fixed the segfault caused by a missing font)

diff --git a/st.c b/st.c
index f295955..1f58569 100644 (file)
--- a/st.c
+++ b/st.c
@@ -703,18 +703,25 @@ xinit(void) {
 
        xw.dis = XOpenDisplay(NULL);
        xw.scr = XDefaultScreen(xw.dis);
+    if(!(xw.dis && xw.scr))
+        die("can not open display");
+    
        /* font */
-       dc.font = XLoadQueryFont(xw.dis, FONT);
+       if(!(dc.font = XLoadQueryFont(xw.dis, 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;
+
        /* colors */
        for(i = 0; i < LEN(colorname); i++)
                dc.col[i] = xgetcol(colorname[i]);
+
        term.c.attr.fg = DefaultFG;
        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,
@@ -736,6 +743,7 @@ xinit(void) {
        XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint);
        XStoreName(xw.dis, xw.win, TNAME);
        XSync(xw.dis, 0);
+    
 }
 
 void
@@ -908,13 +916,13 @@ run(void) {
 int
 main(int argc, char *argv[]) {
        if(argc == 2 && !strncmp("-v", argv[1], 3))
-               die("st-"VERSION", © 2009 st engineers\n");
+               die("st-"", © 2009 st engineers\n");
        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;
 }