| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Utility routines. |
| 4 | * |
| 5 | * Copyright (C) tons of folks. Tracking down who wrote what |
| 6 | * isn't something I'm going to worry about... If you wrote something |
| 7 | * here, please feel free to acknowledge your work. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | * Based in part on code from sash, Copyright (c) 1999 by David I. Bell |
| 24 | * Permission has been granted to redistribute this code under the GPL. |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include "libbb.h" |
| 30 | |
| 31 | |
| 32 | |
| 33 | #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f) |
| 34 | #define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)]) |
| 35 | |
| 36 | /* The special bits. If set, display SMODE0/1 instead of MODE0/1 */ |
| 37 | static const mode_t SBIT[] = { |
| 38 | 0, 0, S_ISUID, |
| 39 | 0, 0, S_ISGID, |
| 40 | 0, 0, S_ISVTX |
| 41 | }; |
| 42 | |
| 43 | /* The 9 mode bits to test */ |
| 44 | static const mode_t MBIT[] = { |
| 45 | S_IRUSR, S_IWUSR, S_IXUSR, |
| 46 | S_IRGRP, S_IWGRP, S_IXGRP, |
| 47 | S_IROTH, S_IWOTH, S_IXOTH |
| 48 | }; |
| 49 | |
| 50 | static const char MODE1[] = "rwxrwxrwx"; |
| 51 | static const char MODE0[] = "---------"; |
| 52 | static const char SMODE1[] = "..s..s..t"; |
| 53 | static const char SMODE0[] = "..S..S..T"; |
| 54 | |
| 55 | /* |
| 56 | * Return the standard ls-like mode string from a file mode. |
| 57 | * This is static and so is overwritten on each call. |
| 58 | */ |
| 59 | const char *mode_string(int mode) |
| 60 | { |
| 61 | static char buf[12]; |
| 62 | |
| 63 | int i; |
| 64 | |
| 65 | buf[0] = TYPECHAR(mode); |
| 66 | for (i = 0; i < 9; i++) { |
| 67 | if (mode & SBIT[i]) |
| 68 | buf[i + 1] = (mode & MBIT[i]) ? SMODE1[i] : SMODE0[i]; |
| 69 | else |
| 70 | buf[i + 1] = (mode & MBIT[i]) ? MODE1[i] : MODE0[i]; |
| 71 | } |
| 72 | return buf; |
| 73 | } |
| 74 | |
| 75 | /* END CODE */ |
| 76 | /* |
| 77 | Local Variables: |
| 78 | c-file-style: "linux" |
| 79 | c-basic-offset: 4 |
| 80 | tab-width: 4 |
| 81 | End: |
| 82 | */ |