1 /* 2 * A single utility routine. 3 * 4 * Copyright (C) 1996 Andrew Tridgell 5 * Copyright (C) 1996 Paul Mackerras 6 * Copyright (C) 2001 Martin Pool <mbp@samba.org> 7 * Copyright (C) 2003-2019 Wayne Davison 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 3 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 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, visit the http://fsf.org website. 21 */ 22 23 #include "rsync.h" 24 25 /* Produce a string representation of Unix mode bits like that used by ls(1). 26 * The "buf" buffer must be at least 11 characters. */ permstring(char * perms,mode_t mode)27void permstring(char *perms, mode_t mode) 28 { 29 static const char *perm_map = "rwxrwxrwx"; 30 int i; 31 32 strlcpy(perms, "----------", 11); 33 34 for (i = 0; i < 9; i++) { 35 if (mode & (1 << i)) 36 perms[9-i] = perm_map[8-i]; 37 } 38 39 /* Handle setuid/sticky bits. You might think the indices are 40 * off by one, but remember there's a type char at the 41 * start. */ 42 if (mode & S_ISUID) 43 perms[3] = (mode & S_IXUSR) ? 's' : 'S'; 44 45 if (mode & S_ISGID) 46 perms[6] = (mode & S_IXGRP) ? 's' : 'S'; 47 48 #ifdef S_ISVTX 49 if (mode & S_ISVTX) 50 perms[9] = (mode & S_IXOTH) ? 't' : 'T'; 51 #endif 52 53 if (S_ISDIR(mode)) 54 perms[0] = 'd'; 55 else if (S_ISLNK(mode)) 56 perms[0] = 'l'; 57 else if (S_ISBLK(mode)) 58 perms[0] = 'b'; 59 else if (S_ISCHR(mode)) 60 perms[0] = 'c'; 61 else if (S_ISSOCK(mode)) 62 perms[0] = 's'; 63 else if (S_ISFIFO(mode)) 64 perms[0] = 'p'; 65 } 66