Initial revision

1 files changed, 193 insertions, 0 deletions

diff --git a/binutils/filemode.c b/binutils/filemode.c
new file mode 100644
index 0000000..1bb5e64
--- /dev/null
+++ b/binutils/filemode.c
@@ -0,0 +1,193 @@
+/* filemode.c -- make a string describing file modes
+   Copyright (C) 1985, 1990 Free Software Foundation, Inc.
+
+   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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+void mode_string ();
+static char ftypelet ();
+static void rwx ();
+static void setst ();
+
+/* filemodestring - fill in string STR with an ls-style ASCII
+   representation of the st_mode field of file stats block STATP.
+   10 characters are stored in STR; no terminating null is added.
+   The characters stored in STR are:
+
+   0	File type.  'd' for directory, 'c' for character
+	special, 'b' for block special, 'm' for multiplex,
+	'l' for symbolic link, 's' for socket, 'p' for fifo,
+	'-' for any other file type
+
+   1	'r' if the owner may read, '-' otherwise.
+
+   2	'w' if the owner may write, '-' otherwise.
+
+   3	'x' if the owner may execute, 's' if the file is
+	set-user-id, '-' otherwise.
+	'S' if the file is set-user-id, but the execute
+	bit isn't set.
+
+   4	'r' if group members may read, '-' otherwise.
+
+   5	'w' if group members may write, '-' otherwise.
+
+   6	'x' if group members may execute, 's' if the file is
+	set-group-id, '-' otherwise.
+	'S' if it is set-group-id but not executable.
+
+   7	'r' if any user may read, '-' otherwise.
+
+   8	'w' if any user may write, '-' otherwise.
+
+   9	'x' if any user may execute, 't' if the file is "sticky"
+	(will be retained in swap space after execution), '-'
+	otherwise.
+	'T' if the file is sticky but not executable. */
+
+void
+filemodestring (statp, str)
+     struct stat *statp;
+     char *str;
+{
+  mode_string (statp->st_mode, str);
+}
+
+/* Like filemodestring, but only the relevant part of the `struct stat'
+   is given as an argument. */
+
+void
+mode_string (mode, str)
+     unsigned short mode;
+     char *str;
+{
+  str[0] = ftypelet (mode);
+  rwx ((mode & 0700) << 0, &str[1]);
+  rwx ((mode & 0070) << 3, &str[4]);
+  rwx ((mode & 0007) << 6, &str[7]);
+  setst (mode, str);
+}
+
+/* Return a character indicating the type of file described by
+   file mode BITS:
+   'd' for directories
+   'b' for block special files
+   'c' for character special files
+   'm' for multiplexor files
+   'l' for symbolic links
+   's' for sockets
+   'p' for fifos
+   '-' for any other file type. */
+
+static char
+ftypelet (bits)
+     unsigned short bits;
+{
+  switch (bits & S_IFMT)
+    {
+    default:
+      return '-';
+    case S_IFDIR:
+      return 'd';
+#ifdef S_IFLNK
+    case S_IFLNK:
+      return 'l';
+#endif
+#ifdef S_IFCHR
+    case S_IFCHR:
+      return 'c';
+#endif
+#ifdef S_IFBLK
+    case S_IFBLK:
+      return 'b';
+#endif
+#ifdef S_IFMPC
+    case S_IFMPC:
+    case S_IFMPB:
+      return 'm';
+#endif
+#ifdef S_IFSOCK
+    case S_IFSOCK:
+      return 's';
+#endif
+#ifdef S_IFIFO
+#if S_IFIFO != S_IFSOCK
+    case S_IFIFO:
+      return 'p';
+#endif
+#endif
+#ifdef S_IFNWK			/* HP-UX */
+    case S_IFNWK:
+      return 'n';
+#endif
+    }
+}
+
+/* Look at read, write, and execute bits in BITS and set
+   flags in CHARS accordingly. */
+
+static void
+rwx (bits, chars)
+     unsigned short bits;
+     char *chars;
+{
+  chars[0] = (bits & S_IREAD) ? 'r' : '-';
+  chars[1] = (bits & S_IWRITE) ? 'w' : '-';
+  chars[2] = (bits & S_IEXEC) ? 'x' : '-';
+}
+
+/* Set the 's' and 't' flags in file attributes string CHARS,
+   according to the file mode BITS. */
+
+static void
+setst (bits, chars)
+     unsigned short bits;
+     char *chars;
+{
+#ifdef S_ISUID
+  if (bits & S_ISUID)
+    {
+      if (chars[3] != 'x')
+	/* Set-uid, but not executable by owner. */
+	chars[3] = 'S';
+      else
+	chars[3] = 's';
+    }
+#endif
+#ifdef S_ISGID
+  if (bits & S_ISGID)
+    {
+      if (chars[6] != 'x')
+	/* Set-gid, but not executable by group. */
+	chars[6] = 'S';
+      else
+	chars[6] = 's';
+    }
+#endif
+#ifdef S_ISVTX
+  if (bits & S_ISVTX)
+    {
+      if (chars[9] != 'x')
+	/* Sticky, but not executable by others. */
+	chars[9] = 'T';
+      else
+	chars[9] = 't';
+    }
+#endif
+}
+
+