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- /* filemode.c -- make a string describing file modes
- Copyright (C) 1985, 1990, 1991 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "bfd.h"
- #include "sysdep.h"
-
- static char ftypelet PARAMS ((unsigned long));
- static void setst PARAMS ((unsigned long, char *));
-
- /* 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. */
-
- #if 0
-
- /* This is not used; only mode_string is used. */
-
- void
- filemodestring (statp, str)
- struct stat *statp;
- char *str;
- {
- mode_string ((unsigned long) statp->st_mode, str);
- }
-
- #endif
-
- /* Get definitions for the file permission bits. */
-
- #ifndef S_IRWXU
- #define S_IRWXU 0700
- #endif
- #ifndef S_IRUSR
- #define S_IRUSR 0400
- #endif
- #ifndef S_IWUSR
- #define S_IWUSR 0200
- #endif
- #ifndef S_IXUSR
- #define S_IXUSR 0100
- #endif
-
- #ifndef S_IRWXG
- #define S_IRWXG 0070
- #endif
- #ifndef S_IRGRP
- #define S_IRGRP 0040
- #endif
- #ifndef S_IWGRP
- #define S_IWGRP 0020
- #endif
- #ifndef S_IXGRP
- #define S_IXGRP 0010
- #endif
-
- #ifndef S_IRWXO
- #define S_IRWXO 0007
- #endif
- #ifndef S_IROTH
- #define S_IROTH 0004
- #endif
- #ifndef S_IWOTH
- #define S_IWOTH 0002
- #endif
- #ifndef S_IXOTH
- #define S_IXOTH 0001
- #endif
-
- /* Like filemodestring, but only the relevant part of the `struct stat'
- is given as an argument. */
-
- void
- mode_string (mode, str)
- unsigned long mode;
- char *str;
- {
- str[0] = ftypelet ((unsigned long) mode);
- str[1] = (mode & S_IRUSR) != 0 ? 'r' : '-';
- str[2] = (mode & S_IWUSR) != 0 ? 'w' : '-';
- str[3] = (mode & S_IXUSR) != 0 ? 'x' : '-';
- str[4] = (mode & S_IRGRP) != 0 ? 'r' : '-';
- str[5] = (mode & S_IWGRP) != 0 ? 'w' : '-';
- str[6] = (mode & S_IXGRP) != 0 ? 'x' : '-';
- str[7] = (mode & S_IROTH) != 0 ? 'r' : '-';
- str[8] = (mode & S_IWOTH) != 0 ? 'w' : '-';
- str[9] = (mode & S_IXOTH) != 0 ? 'x' : '-';
- setst ((unsigned long) 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. */
-
- #ifndef S_ISDIR
- #ifdef S_IFDIR
- #define S_ISDIR(i) (((i) & S_IFMT) == S_IFDIR)
- #else /* ! defined (S_IFDIR) */
- #define S_ISDIR(i) (((i) & 0170000) == 040000)
- #endif /* ! defined (S_IFDIR) */
- #endif /* ! defined (S_ISDIR) */
-
- #ifndef S_ISBLK
- #ifdef S_IFBLK
- #define S_ISBLK(i) (((i) & S_IFMT) == S_IFBLK)
- #else /* ! defined (S_IFBLK) */
- #define S_ISBLK(i) 0
- #endif /* ! defined (S_IFBLK) */
- #endif /* ! defined (S_ISBLK) */
-
- #ifndef S_ISCHR
- #ifdef S_IFCHR
- #define S_ISCHR(i) (((i) & S_IFMT) == S_IFCHR)
- #else /* ! defined (S_IFCHR) */
- #define S_ISCHR(i) 0
- #endif /* ! defined (S_IFCHR) */
- #endif /* ! defined (S_ISCHR) */
-
- #ifndef S_ISFIFO
- #ifdef S_IFIFO
- #define S_ISFIFO(i) (((i) & S_IFMT) == S_IFIFO)
- #else /* ! defined (S_IFIFO) */
- #define S_ISFIFO(i) 0
- #endif /* ! defined (S_IFIFO) */
- #endif /* ! defined (S_ISFIFO) */
-
- #ifndef S_ISSOCK
- #ifdef S_IFSOCK
- #define S_ISSOCK(i) (((i) & S_IFMT) == S_IFSOCK)
- #else /* ! defined (S_IFSOCK) */
- #define S_ISSOCK(i) 0
- #endif /* ! defined (S_IFSOCK) */
- #endif /* ! defined (S_ISSOCK) */
-
- #ifndef S_ISLNK
- #ifdef S_IFLNK
- #define S_ISLNK(i) (((i) & S_IFMT) == S_IFLNK)
- #else /* ! defined (S_IFLNK) */
- #define S_ISLNK(i) 0
- #endif /* ! defined (S_IFLNK) */
- #endif /* ! defined (S_ISLNK) */
-
- static char
- ftypelet (bits)
- unsigned long bits;
- {
- if (S_ISDIR (bits))
- return 'd';
- if (S_ISLNK (bits))
- return 'l';
- if (S_ISBLK (bits))
- return 'b';
- if (S_ISCHR (bits))
- return 'c';
- if (S_ISSOCK (bits))
- return 's';
- if (S_ISFIFO (bits))
- return 'p';
-
- #ifdef S_IFMT
- #ifdef S_IFMPC
- if ((bits & S_IFMT) == S_IFMPC
- || (bits & S_IFMT) == S_IFMPB)
- return 'm';
- #endif
- #ifdef S_IFNWK
- if ((bits & S_IFMT) == S_IFNWK)
- return 'n';
- #endif
- #endif
-
- return '-';
- }
-
- /* Set the 's' and 't' flags in file attributes string CHARS,
- according to the file mode BITS. */
-
- static void
- setst (bits, chars)
- unsigned long 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
- }
-