1 /* 2 * setflags.c - Set a file flags on an ext2 file system 3 * 4 * Copyright (C) 1993, 1994 Remy Card <card (at) masi.ibp.fr> 5 * Laboratoire MASI, Institut Blaise Pascal 6 * Universite Pierre et Marie Curie (Paris VI) 7 * 8 * This file can be redistributed under the terms of the GNU Library General 9 * Public License 10 */ 11 12 /* 13 * History: 14 * 93/10/30 - Creation 15 */ 16 17 #if HAVE_ERRNO_H 18 #include <errno.h> 19 #endif 20 #include <sys/types.h> 21 #include <sys/stat.h> 22 #if HAVE_EXT2_IOCTLS 23 #include <sys/ioctl.h> 24 #endif 25 26 #include "e2p.h" 27 28 /* 29 * Deal with lame glibc's that define this function without actually 30 * implementing it. Can you say "attractive nuisance", boys and girls? 31 * I knew you could! 32 */ 33 #ifdef __linux__ 34 #undef HAVE_CHFLAGS 35 #endif 36 37 int setflags (int fd, unsigned long flags) 38 { 39 struct stat buf; 40 #if HAVE_CHFLAGS 41 unsigned long bsd_flags = 0; 42 43 #ifdef UF_IMMUTABLE 44 if (flags & EXT2_IMMUTABLE_FL) 45 bsd_flags |= UF_IMMUTABLE; 46 #endif 47 #ifdef UF_APPEND 48 if (flags & EXT2_APPEND_FL) 49 bsd_flags |= UF_APPEND; 50 #endif 51 #ifdef UF_NODUMP 52 if (flags & EXT2_NODUMP_FL) 53 bsd_flags |= UF_NODUMP; 54 #endif 55 56 return fchflags (fd, bsd_flags); 57 #else 58 #if HAVE_EXT2_IOCTLS 59 int f; 60 61 if (!fstat(fd, &buf) && 62 !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) { 63 errno = EOPNOTSUPP; 64 return -1; 65 } 66 f = (int) flags; 67 return ioctl (fd, EXT2_IOC_SETFLAGS, &f); 68 #endif /* HAVE_EXT2_IOCTLS */ 69 #endif 70 errno = EOPNOTSUPP; 71 return -1; 72 } 73
