BSD 4.4 Lite Usr.bin Sources

1 files changed, 71 insertions, 0 deletions

diff --git a/usr.bin/window/wwalloc.c b/usr.bin/window/wwalloc.c
new file mode 100644
index 0000000..009bf12
--- /dev/null
+++ b/usr.bin/window/wwalloc.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Edward Wang at The University of California, Berkeley.
+ *
+ * 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 University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)wwalloc.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include "ww.h"
+
+char **
+wwalloc(row, col, nrow, ncol, size)
+{
+	register char *p, **pp;
+	register int i;
+
+	/* fast, call malloc only once */
+	pp = (char **)
+		malloc((unsigned) sizeof (char **) * nrow + size * nrow * ncol);
+	if (pp == 0) {
+		wwerrno = WWE_NOMEM;
+		return 0;
+	}
+	p = (char *)&pp[nrow];
+	col *= size;
+	size /= sizeof (char);		/* paranoid */
+	size *= ncol;
+	for (i = 0; i < nrow; i++) {
+		pp[i] = p - col;
+		p += size;
+	}
+	return pp - row;
+}
+
+wwfree(p, row)
+register char **p;
+{
+	free((char *)(p + row));
+}