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 * %Begin-Header% 9 * This file may be redistributed under the terms of the GNU Library 10 * General Public License, version 2. 11 * %End-Header% 12 */ 13 14 /* 15 * History: 16 * 93/10/30 - Creation 17 */ 18 19 #if HAVE_ERRNO_H 20 #include <errno.h> 21 #endif 22 #include <sys/types.h> 23 #include <sys/stat.h> 24 #if HAVE_EXT2_IOCTLS 25 #include <sys/ioctl.h> 26 #endif 27 28 #include "e2p.h" 29 30 /* 31 * Deal with lame glibc's that define this function without actually 32 * implementing it. Can you say "attractive nuisance", boys and girls? 33 * I knew you could! 34 */ 35 #ifdef __linux__ 36 #undef HAVE_CHFLAGS 37 #endif 38 39 int setflags (int fd, unsigned long flags) 40 { 41 #if HAVE_CHFLAGS 42 unsigned long bsd_flags = 0; 43 44 #ifdef UF_IMMUTABLE 45 if (flags & EXT2_IMMUTABLE_FL) 46 bsd_flags |= UF_IMMUTABLE; 47 #endif 48 #ifdef UF_APPEND 49 if (flags & EXT2_APPEND_FL) 50 bsd_flags |= UF_APPEND; 51 #endif 52 #ifdef UF_NODUMP 53 if (flags & EXT2_NODUMP_FL) 54 bsd_flags |= UF_NODUMP; 55 #endif 56 57 return fchflags (fd, bsd_flags); 58 #else /* ! HAVE_CHFLAGS */ 59 #if HAVE_EXT2_IOCTLS 60 struct stat buf; 61 int f; 62 63 if (!fstat(fd, &buf) && 64 !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) { 65 errno = EOPNOTSUPP; 66 return -1; 67 } 68 f = (int) flags; 69 70 return ioctl(fd, EXT2_IOC_SETFLAGS, &f); 71 #else 72 errno = EOPNOTSUPP; 73 return -1; 74 #endif /* HAVE_EXT2_IOCTLS */ 75 #endif /* HAVE_CHFLAGS */ 76 } 77
