+/* this routine should be called after receiving SIGWINCH */
+void mutt_resize_screen (void)
+{
+ char *cp;
+ int fd;
+ struct winsize w;
+
+ int rows, cols;
+
+ rows = -1;
+ cols = -1;
+ if ((fd = open ("/dev/tty", O_RDONLY)) != -1) {
+ if (ioctl (fd, TIOCGWINSZ, &w) != -1) {
+ rows = w.ws_row;
+ cols = w.ws_col;
+ }
+ close (fd);
+ }
+ if (rows <= 0) {
+ if ((cp = getenv ("LINES")) != NULL) {
+ rows = atoi (cp);
+ }
+ else
+ rows = 24;
+ }
+ if (cols <= 0) {
+ if ((cp = getenv ("COLUMNS")) != NULL)
+ cols = atoi (cp);
+ else
+ cols = 80;
+ }
+ resizeterm (rows, cols);
+}