Fill out file modes better and clean up interface more by trying to
funnel into POSIX file mode_t. FIXME: something needs to be done to merge ISO9660 interfaces and UDF and probably the right thing is to make it look like POSIX. Would be nice if there were a library e.g. from GNU fileutils I could use to help.
This commit is contained in:
rocky
283
lib/udf/filemode.c
Normal file
283
lib/udf/filemode.c
Normal file
@@ -0,0 +1,283 @@
|
||||
/* filemode.c -- make a string describing file modes
|
||||
Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
|
||||
Copyright (C) 1985, 1990, 1993, 1998-2000 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 2, 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. */
|
||||
|
||||
#if HAVE_CONFIG_H
|
||||
# include <config.h>
|
||||
#endif
|
||||
|
||||
#include <cdio/udf.h>
|
||||
|
||||
#if !S_IRUSR
|
||||
# if S_IREAD
|
||||
# define S_IRUSR S_IREAD
|
||||
# else
|
||||
# define S_IRUSR 00400
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if !S_IWUSR
|
||||
# if S_IWRITE
|
||||
# define S_IWUSR S_IWRITE
|
||||
# else
|
||||
# define S_IWUSR 00200
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if !S_IXUSR
|
||||
# if S_IEXEC
|
||||
# define S_IXUSR S_IEXEC
|
||||
# else
|
||||
# define S_IXUSR 00100
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if !S_IRGRP
|
||||
# define S_IRGRP (S_IRUSR >> 3)
|
||||
#endif
|
||||
#if !S_IWGRP
|
||||
# define S_IWGRP (S_IWUSR >> 3)
|
||||
#endif
|
||||
#if !S_IXGRP
|
||||
# define S_IXGRP (S_IXUSR >> 3)
|
||||
#endif
|
||||
#if !S_IROTH
|
||||
# define S_IROTH (S_IRUSR >> 6)
|
||||
#endif
|
||||
#if !S_IWOTH
|
||||
# define S_IWOTH (S_IWUSR >> 6)
|
||||
#endif
|
||||
#if !S_IXOTH
|
||||
# define S_IXOTH (S_IXUSR >> 6)
|
||||
#endif
|
||||
|
||||
#ifdef STAT_MACROS_BROKEN
|
||||
# undef S_ISBLK
|
||||
# undef S_ISCHR
|
||||
# undef S_ISDIR
|
||||
# undef S_ISFIFO
|
||||
# undef S_ISLNK
|
||||
# undef S_ISMPB
|
||||
# undef S_ISMPC
|
||||
# undef S_ISNWK
|
||||
# undef S_ISREG
|
||||
# undef S_ISSOCK
|
||||
#endif /* STAT_MACROS_BROKEN. */
|
||||
|
||||
#if !defined S_ISBLK && defined S_IFBLK
|
||||
# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
|
||||
#endif
|
||||
#if !defined S_ISCHR && defined S_IFCHR
|
||||
# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
|
||||
#endif
|
||||
#if !defined S_ISDIR && defined S_IFDIR
|
||||
# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
|
||||
#endif
|
||||
#if !defined S_ISREG && defined S_IFREG
|
||||
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
|
||||
#endif
|
||||
#if !defined S_ISFIFO && defined S_IFIFO
|
||||
# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
|
||||
#endif
|
||||
#if !defined S_ISLNK && defined S_IFLNK
|
||||
# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
|
||||
#endif
|
||||
#if !defined S_ISSOCK && defined S_IFSOCK
|
||||
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
|
||||
#endif
|
||||
#if !defined S_ISMPB && defined S_IFMPB /* V7 */
|
||||
# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
|
||||
# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
|
||||
#endif
|
||||
#if !defined S_ISNWK && defined S_IFNWK /* HP/UX */
|
||||
# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
|
||||
#endif
|
||||
#if !defined S_ISDOOR && defined S_IFDOOR /* Solaris 2.5 and up */
|
||||
# define S_ISDOOR(m) (((m) & S_IFMT) == S_IFDOOR)
|
||||
#endif
|
||||
#if !defined S_ISCTG && defined S_IFCTG /* MassComp */
|
||||
# define S_ISCTG(m) (((m) & S_IFMT) == S_IFCTG)
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/* Set the 's' and 't' flags in file attributes string CHARS,
|
||||
according to the file mode BITS. */
|
||||
|
||||
static void
|
||||
setst (mode_t 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
|
||||
}
|
||||
|
||||
/* Return a character indicating the type of file described by
|
||||
file mode BITS:
|
||||
'd' for directories
|
||||
'D' for doors
|
||||
'b' for block special files
|
||||
'c' for character special files
|
||||
'n' for network special files
|
||||
'm' for multiplexor files
|
||||
'M' for an off-line (regular) file
|
||||
'l' for symbolic links
|
||||
's' for sockets
|
||||
'p' for fifos
|
||||
'C' for contigous data files
|
||||
'-' for regular files
|
||||
'?' for any other file type. */
|
||||
|
||||
static char
|
||||
ftypelet (mode_t bits)
|
||||
{
|
||||
#ifdef S_ISBLK
|
||||
if (S_ISBLK (bits))
|
||||
return 'b';
|
||||
#endif
|
||||
if (S_ISCHR (bits))
|
||||
return 'c';
|
||||
if (S_ISDIR (bits))
|
||||
return 'd';
|
||||
if (S_ISREG (bits))
|
||||
return '-';
|
||||
#ifdef S_ISFIFO
|
||||
if (S_ISFIFO (bits))
|
||||
return 'p';
|
||||
#endif
|
||||
#ifdef S_ISLNK
|
||||
if (S_ISLNK (bits))
|
||||
return 'l';
|
||||
#endif
|
||||
#ifdef S_ISSOCK
|
||||
if (S_ISSOCK (bits))
|
||||
return 's';
|
||||
#endif
|
||||
#ifdef S_ISMPC
|
||||
if (S_ISMPC (bits))
|
||||
return 'm';
|
||||
#endif
|
||||
#ifdef S_ISNWK
|
||||
if (S_ISNWK (bits))
|
||||
return 'n';
|
||||
#endif
|
||||
#ifdef S_ISDOOR
|
||||
if (S_ISDOOR (bits))
|
||||
return 'D';
|
||||
#endif
|
||||
#ifdef S_ISCTG
|
||||
if (S_ISCTG (bits))
|
||||
return 'C';
|
||||
#endif
|
||||
|
||||
/* The following two tests are for Cray DMF (Data Migration
|
||||
Facility), which is a HSM file system. A migrated file has a
|
||||
`st_dm_mode' that is different from the normal `st_mode', so any
|
||||
tests for migrated files should use the former. */
|
||||
|
||||
#ifdef S_ISOFD
|
||||
if (S_ISOFD (bits))
|
||||
/* off line, with data */
|
||||
return 'M';
|
||||
#endif
|
||||
#ifdef S_ISOFL
|
||||
/* off line, with no data */
|
||||
if (S_ISOFL (bits))
|
||||
return 'M';
|
||||
#endif
|
||||
return '?';
|
||||
}
|
||||
|
||||
/*! udf_mode_string - 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 regular, '?' 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. */
|
||||
|
||||
char *
|
||||
udf_mode_string (mode_t mode, char *str)
|
||||
{
|
||||
str[0] = ftypelet (mode);
|
||||
str[1] = mode & S_IRUSR ? 'r' : '-';
|
||||
str[2] = mode & S_IWUSR ? 'w' : '-';
|
||||
str[3] = mode & S_IXUSR ? 'x' : '-';
|
||||
str[4] = mode & S_IRGRP ? 'r' : '-';
|
||||
str[5] = mode & S_IWGRP ? 'w' : '-';
|
||||
str[6] = mode & S_IXGRP ? 'x' : '-';
|
||||
str[7] = mode & S_IROTH ? 'r' : '-';
|
||||
str[8] = mode & S_IWOTH ? 'w' : '-';
|
||||
str[9] = mode & S_IXOTH ? 'x' : '-';
|
||||
setst (mode, str);
|
||||
return str;
|
||||
}
|
||||
Reference in New Issue
Block a user