[18889] | 1 | /* filemode.c -- make a string describing file modes |
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| 2 | Copyright (C) 1985, 1990, 1993, 1998, 1999 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This program is free software; you can redistribute it and/or modify |
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| 5 | it under the terms of the GNU General Public License as published by |
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| 6 | the Free Software Foundation; either version 2, or (at your option) |
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| 7 | any later version. |
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| 8 | |
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| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 12 | GNU General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU General Public License |
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| 15 | along with this program; if not, write to the Free Software Foundation, |
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| 16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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| 17 | |
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| 18 | #if HAVE_CONFIG_H |
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| 19 | # include <config.h> |
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| 20 | #endif |
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| 21 | |
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| 22 | #include <sys/types.h> |
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| 23 | #include <sys/stat.h> |
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| 24 | |
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| 25 | #include "filemode.h" |
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| 26 | |
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| 27 | #if !S_IRUSR |
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| 28 | # if S_IREAD |
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| 29 | # define S_IRUSR S_IREAD |
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| 30 | # else |
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| 31 | # define S_IRUSR 00400 |
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| 32 | # endif |
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| 33 | #endif |
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| 34 | |
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| 35 | #if !S_IWUSR |
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| 36 | # if S_IWRITE |
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| 37 | # define S_IWUSR S_IWRITE |
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| 38 | # else |
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| 39 | # define S_IWUSR 00200 |
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| 40 | # endif |
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| 41 | #endif |
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| 42 | |
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| 43 | #if !S_IXUSR |
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| 44 | # if S_IEXEC |
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| 45 | # define S_IXUSR S_IEXEC |
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| 46 | # else |
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| 47 | # define S_IXUSR 00100 |
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| 48 | # endif |
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| 49 | #endif |
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| 50 | |
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| 51 | #if !S_IRGRP |
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| 52 | # define S_IRGRP (S_IRUSR >> 3) |
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| 53 | #endif |
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| 54 | #if !S_IWGRP |
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| 55 | # define S_IWGRP (S_IWUSR >> 3) |
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| 56 | #endif |
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| 57 | #if !S_IXGRP |
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| 58 | # define S_IXGRP (S_IXUSR >> 3) |
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| 59 | #endif |
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| 60 | #if !S_IROTH |
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| 61 | # define S_IROTH (S_IRUSR >> 6) |
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| 62 | #endif |
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| 63 | #if !S_IWOTH |
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| 64 | # define S_IWOTH (S_IWUSR >> 6) |
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| 65 | #endif |
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| 66 | #if !S_IXOTH |
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| 67 | # define S_IXOTH (S_IXUSR >> 6) |
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| 68 | #endif |
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| 69 | |
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| 70 | #ifdef STAT_MACROS_BROKEN |
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| 71 | # undef S_ISBLK |
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| 72 | # undef S_ISCHR |
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| 73 | # undef S_ISDIR |
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| 74 | # undef S_ISFIFO |
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| 75 | # undef S_ISLNK |
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| 76 | # undef S_ISMPB |
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| 77 | # undef S_ISMPC |
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| 78 | # undef S_ISNWK |
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| 79 | # undef S_ISREG |
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| 80 | # undef S_ISSOCK |
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| 81 | # undef S_ISDOOR |
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| 82 | #endif /* STAT_MACROS_BROKEN. */ |
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| 83 | |
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| 84 | #if !defined(S_ISBLK) && defined(S_IFBLK) |
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| 85 | # define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) |
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| 86 | #endif |
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| 87 | #if !defined(S_ISCHR) && defined(S_IFCHR) |
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| 88 | # define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) |
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| 89 | #endif |
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| 90 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
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| 91 | # define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
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| 92 | #endif |
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| 93 | #if !defined(S_ISREG) && defined(S_IFREG) |
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| 94 | # define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) |
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| 95 | #endif |
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| 96 | #if !defined(S_ISFIFO) && defined(S_IFIFO) |
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| 97 | # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) |
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| 98 | #endif |
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| 99 | #if !defined(S_ISLNK) && defined(S_IFLNK) |
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| 100 | # define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) |
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| 101 | #endif |
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| 102 | #if !defined(S_ISSOCK) && defined(S_IFSOCK) |
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| 103 | # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) |
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| 104 | #endif |
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| 105 | #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */ |
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| 106 | # define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB) |
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| 107 | # define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC) |
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| 108 | #endif |
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| 109 | #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */ |
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| 110 | # define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK) |
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| 111 | #endif |
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| 112 | #if !defined(S_ISDOOR) && defined(S_IFDOOR) /* Solaris 2.5 and up */ |
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| 113 | # define S_ISDOOR(m) (((m) & S_IFMT) == S_IFDOOR) |
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| 114 | #endif |
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| 115 | |
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| 116 | /* Set the 's' and 't' flags in file attributes string CHARS, |
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| 117 | according to the file mode BITS. */ |
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| 118 | |
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| 119 | static void |
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| 120 | setst (mode_t bits, char *chars) |
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| 121 | { |
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| 122 | #ifdef S_ISUID |
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| 123 | if (bits & S_ISUID) |
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| 124 | { |
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| 125 | if (chars[3] != 'x') |
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| 126 | /* Set-uid, but not executable by owner. */ |
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| 127 | chars[3] = 'S'; |
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| 128 | else |
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| 129 | chars[3] = 's'; |
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| 130 | } |
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| 131 | #endif |
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| 132 | #ifdef S_ISGID |
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| 133 | if (bits & S_ISGID) |
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| 134 | { |
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| 135 | if (chars[6] != 'x') |
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| 136 | /* Set-gid, but not executable by group. */ |
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| 137 | chars[6] = 'S'; |
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| 138 | else |
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| 139 | chars[6] = 's'; |
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| 140 | } |
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| 141 | #endif |
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| 142 | #ifdef S_ISVTX |
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| 143 | if (bits & S_ISVTX) |
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| 144 | { |
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| 145 | if (chars[9] != 'x') |
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| 146 | /* Sticky, but not executable by others. */ |
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| 147 | chars[9] = 'T'; |
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| 148 | else |
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| 149 | chars[9] = 't'; |
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| 150 | } |
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| 151 | #endif |
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| 152 | } |
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| 153 | |
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| 154 | /* Return a character indicating the type of file described by |
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| 155 | file mode BITS: |
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| 156 | 'd' for directories |
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| 157 | 'D' for doors |
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| 158 | 'b' for block special files |
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| 159 | 'c' for character special files |
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| 160 | 'm' for multiplexor files |
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| 161 | 'M' for an off-line (regular) file |
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| 162 | 'l' for symbolic links |
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| 163 | 's' for sockets |
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| 164 | 'p' for fifos |
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| 165 | '-' for regular files |
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| 166 | '?' for any other file type. */ |
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| 167 | |
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| 168 | static char |
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| 169 | ftypelet (mode_t bits) |
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| 170 | { |
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| 171 | #ifdef S_ISBLK |
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| 172 | if (S_ISBLK (bits)) |
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| 173 | return 'b'; |
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| 174 | #endif |
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| 175 | if (S_ISCHR (bits)) |
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| 176 | return 'c'; |
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| 177 | if (S_ISDIR (bits)) |
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| 178 | return 'd'; |
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| 179 | if (S_ISREG (bits)) |
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| 180 | return '-'; |
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| 181 | #ifdef S_ISFIFO |
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| 182 | if (S_ISFIFO (bits)) |
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| 183 | return 'p'; |
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| 184 | #endif |
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| 185 | #ifdef S_ISLNK |
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| 186 | if (S_ISLNK (bits)) |
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| 187 | return 'l'; |
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| 188 | #endif |
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| 189 | #ifdef S_ISSOCK |
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| 190 | if (S_ISSOCK (bits)) |
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| 191 | return 's'; |
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| 192 | #endif |
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| 193 | #ifdef S_ISMPC |
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| 194 | if (S_ISMPC (bits)) |
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| 195 | return 'm'; |
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| 196 | #endif |
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| 197 | #ifdef S_ISNWK |
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| 198 | if (S_ISNWK (bits)) |
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| 199 | return 'n'; |
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| 200 | #endif |
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| 201 | #ifdef S_ISDOOR |
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| 202 | if (S_ISDOOR (bits)) |
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| 203 | return 'D'; |
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| 204 | #endif |
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| 205 | |
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| 206 | /* The following two tests are for Cray DMF (Data Migration |
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| 207 | Facility), which is a HSM file system. A migrated file has a |
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| 208 | `st_dm_mode' that is different from the normal `st_mode', so any |
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| 209 | tests for migrated files should use the former. */ |
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| 210 | |
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| 211 | #ifdef S_ISOFD |
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| 212 | if (S_ISOFD (bits)) |
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| 213 | /* off line, with data */ |
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| 214 | return 'M'; |
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| 215 | #endif |
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| 216 | #ifdef S_ISOFL |
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| 217 | /* off line, with no data */ |
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| 218 | if (S_ISOFL (bits)) |
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| 219 | return 'M'; |
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| 220 | #endif |
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| 221 | return '?'; |
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| 222 | } |
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| 223 | |
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| 224 | /* Like filemodestring, but only the relevant part of the `struct stat' |
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| 225 | is given as an argument. */ |
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| 226 | |
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| 227 | void |
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| 228 | mode_string (mode_t mode, char *str) |
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| 229 | { |
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| 230 | str[0] = ftypelet (mode); |
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| 231 | str[1] = mode & S_IRUSR ? 'r' : '-'; |
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| 232 | str[2] = mode & S_IWUSR ? 'w' : '-'; |
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| 233 | str[3] = mode & S_IXUSR ? 'x' : '-'; |
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| 234 | str[4] = mode & S_IRGRP ? 'r' : '-'; |
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| 235 | str[5] = mode & S_IWGRP ? 'w' : '-'; |
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| 236 | str[6] = mode & S_IXGRP ? 'x' : '-'; |
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| 237 | str[7] = mode & S_IROTH ? 'r' : '-'; |
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| 238 | str[8] = mode & S_IWOTH ? 'w' : '-'; |
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| 239 | str[9] = mode & S_IXOTH ? 'x' : '-'; |
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| 240 | setst (mode, str); |
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| 241 | } |
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| 242 | |
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| 243 | /* filemodestring - fill in string STR with an ls-style ASCII |
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| 244 | representation of the st_mode field of file stats block STATP. |
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| 245 | 10 characters are stored in STR; no terminating null is added. |
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| 246 | The characters stored in STR are: |
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| 247 | |
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| 248 | 0 File type. 'd' for directory, 'c' for character |
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| 249 | special, 'b' for block special, 'm' for multiplex, |
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| 250 | 'l' for symbolic link, 's' for socket, 'p' for fifo, |
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| 251 | '-' for regular, '?' for any other file type |
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| 252 | |
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| 253 | 1 'r' if the owner may read, '-' otherwise. |
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| 254 | |
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| 255 | 2 'w' if the owner may write, '-' otherwise. |
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| 256 | |
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| 257 | 3 'x' if the owner may execute, 's' if the file is |
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| 258 | set-user-id, '-' otherwise. |
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| 259 | 'S' if the file is set-user-id, but the execute |
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| 260 | bit isn't set. |
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| 261 | |
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| 262 | 4 'r' if group members may read, '-' otherwise. |
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| 263 | |
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| 264 | 5 'w' if group members may write, '-' otherwise. |
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| 265 | |
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| 266 | 6 'x' if group members may execute, 's' if the file is |
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| 267 | set-group-id, '-' otherwise. |
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| 268 | 'S' if it is set-group-id but not executable. |
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| 269 | |
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| 270 | 7 'r' if any user may read, '-' otherwise. |
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| 271 | |
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| 272 | 8 'w' if any user may write, '-' otherwise. |
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| 273 | |
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| 274 | 9 'x' if any user may execute, 't' if the file is "sticky" |
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| 275 | (will be retained in swap space after execution), '-' |
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| 276 | otherwise. |
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| 277 | 'T' if the file is sticky but not executable. */ |
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| 278 | |
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| 279 | void |
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| 280 | filemodestring (struct stat *statp, char *str) |
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| 281 | { |
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| 282 | mode_string (statp->st_mode, str); |
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| 283 | } |
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