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Diffstat (limited to 'contrib/binutils/binutils/filemode.c')
| -rw-r--r-- | contrib/binutils/binutils/filemode.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/contrib/binutils/binutils/filemode.c b/contrib/binutils/binutils/filemode.c new file mode 100644 index 000000000000..9c44709111b6 --- /dev/null +++ b/contrib/binutils/binutils/filemode.c @@ -0,0 +1,249 @@ +/* filemode.c -- make a string describing file modes + Copyright 1985, 1990, 1991, 1994, 1995, 1997, 1999, 2002, 2003, 2005, + 2007 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., 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ + +#include "sysdep.h" +#include "bfd.h" +#include "bucomm.h" + +static char ftypelet (unsigned long); +static void setst (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. */ + +/* 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 (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 multiplexer 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 (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 (unsigned long bits ATTRIBUTE_UNUSED, char *chars ATTRIBUTE_UNUSED) +{ +#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 +} |