more special functions from libroken in kth-krb 0.9.9

1 files changed, 100 insertions, 0 deletions

diff --git a/kerberosIV/roken/get_window_size.c b/kerberosIV/roken/get_window_size.c
new file mode 100644
index 00000000000..628efb5e824
--- /dev/null
+++ b/kerberosIV/roken/get_window_size.c
@@ -0,0 +1,100 @@
+/*	$OpenBSD: get_window_size.c,v 1.1 1998/08/12 23:36:41 art Exp $	*/
+/*	$KTH: get_window_size.c,v 1.6 1998/05/30 21:22:35 joda Exp $	*/
+
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the Kungliga Tekniska
+ *      Högskolan and its contributors.
+ * 
+ * 4. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <termios.h>
+
+int
+get_window_size(int fd, struct winsize *wp)
+{
+    char *s;
+    struct winsize tmp;
+    int ret = -1;
+    
+    memset(wp, 0, sizeof(*wp));
+    memset(&tmp, 0, sizeof(tmp));
+    if((s = getenv("COLUMNS")))
+	wp->ws_col = atoi(s);
+    if((s = getenv("LINES")))
+	wp->ws_row = atoi(s);
+    if(wp->ws_col > 0 && wp->ws_row > 0)
+	return 0;
+    
+#if defined(TIOGCWINSZ)
+    ret = ioctl(fd, TIOGCWINSZ, &tmp);
+#elif defined(TIOCGSIZE)
+    {
+	struct ttysize ts;
+	
+	ret = ioctl(fd, TIOCGSIZE, &ts);
+	if(ret == 0) {
+	    tmp.ws_row = ts.ts_lines;
+	    tmp.ws_row = ts.ts_cols;
+	    tmp.ws_xpixel = 0;
+	    tmp.ws_ypixel = 0;
+	}
+    }
+#elif defined(HAVE__SCRSIZE)
+    {
+	int dst[2];
+	
+	_scrsize(dst);
+	tmp.ws_row = dst[1];
+	tmp.ws_col = dst[0];
+	tmp.ws_xpixel = 0;
+	tmp.ws_ypixel = 0;
+	ret = 0;
+    }
+#endif
+    if(ret == 0) {
+	if(wp->ws_col == 0) {
+	    wp->ws_col = tmp.ws_col;
+	    wp->ws_xpixel = tmp.ws_xpixel;
+	}
+	if(wp->ws_row == 0) {
+	    wp->ws_row = tmp.ws_row;
+	    wp->ws_ypixel = tmp.ws_ypixel;
+	}
+    }
+    return ret;
+}