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