1 files changed, 78 insertions, 0 deletions
diff --git a/libbb/mode_string.c b/libbb/mode_string.c
new file mode 100644
index 0000000..12dc179
--- /dev/null
+++ b/libbb/mode_string.c
@@ -0,0 +1,78 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) many different people.  If you wrote this, please
+ * acknowledge your work.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#include <stdio.h>
+#include "libbb.h"
+
+
+
+#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
+#define TYPECHAR(mode)  ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
+
+/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */
+static const mode_t SBIT[] = {
+	0, 0, S_ISUID,
+	0, 0, S_ISGID,
+	0, 0, S_ISVTX
+};
+
+/* The 9 mode bits to test */
+static const mode_t MBIT[] = {
+	S_IRUSR, S_IWUSR, S_IXUSR,
+	S_IRGRP, S_IWGRP, S_IXGRP,
+	S_IROTH, S_IWOTH, S_IXOTH
+};
+
+static const char MODE1[]  = "rwxrwxrwx";
+static const char MODE0[]  = "---------";
+static const char SMODE1[] = "..s..s..t";
+static const char SMODE0[] = "..S..S..T";
+
+/*
+ * Return the standard ls-like mode string from a file mode.
+ * This is static and so is overwritten on each call.
+ */
+const char *mode_string(int mode)
+{
+	static char buf[12];
+
+	int i;
+
+	buf[0] = TYPECHAR(mode);
+	for (i = 0; i < 9; i++) {
+		if (mode & SBIT[i])
+			buf[i + 1] = (mode & MBIT[i]) ? SMODE1[i] : SMODE0[i];
+		else
+			buf[i + 1] = (mode & MBIT[i]) ? MODE1[i] : MODE0[i];
+	}
+	return buf;
+}
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/