Imported Upstream version 93u+upstream

1 files changed, 51 insertions, 0 deletions

diff --git a/src/lib/libast/string/strmode.c b/src/lib/libast/string/strmode.c
new file mode 100644
index 0000000..8ec8749
--- /dev/null
+++ b/src/lib/libast/string/strmode.c
@@ -0,0 +1,51 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+/*
+ * G. S. Fowler
+ * AT&T Bell Laboratories
+ *
+ * return modex canonical representation of file mode bits
+ * given ls -l style file mode string
+ */
+
+#include "modelib.h"
+
+int
+strmode(register const char* s)
+{
+	register int		c;
+	register char*		t;
+	register struct modeop*	p;
+	int			mode;
+
+	mode = 0;
+	for (p = modetab; (c = *s++) && p < &modetab[MODELEN]; p++)
+		for (t = p->name; *t; t++)
+			if (*t == c)
+			{
+				c = t - p->name;
+				mode |= (p->mask1 & (c << p->shift1)) | (p->mask2 & (c << p->shift2));
+				break;
+			}
+	return(mode);
+}