1 /* 2 * fgetflags.c - Get a file flags on an ext2 file system 3 * 4 * Copyright (C) 1993, 1994 Remy Card <card@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 #ifndef _LARGEFILE_SOURCE 20 #define _LARGEFILE_SOURCE 21 #endif 22 #ifndef _LARGEFILE64_SOURCE 23 #define _LARGEFILE64_SOURCE 24 #endif 25 26 #include "config.h" 27 #if HAVE_ERRNO_H 28 #include <errno.h> 29 #endif 30 #if HAVE_UNISTD_H 31 #include <unistd.h> 32 #endif 33 #include <sys/types.h> 34 #include <sys/stat.h> 35 #if HAVE_EXT2_IOCTLS 36 #include <fcntl.h> 37 #include <sys/ioctl.h> 38 #endif 39 40 #include "e2p.h" 41 42 #ifndef O_LARGEFILE 43 #define O_LARGEFILE 0 44 #endif 45 #ifndef O_NOFOLLOW 46 #define O_NOFOLLOW 0 47 #endif 48 49 #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_NOFOLLOW) 50 51 int fgetflags (const char * name, unsigned long * flags) 52 { 53 struct stat buf; 54 #if HAVE_STAT_FLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS) 55 56 if (stat (name, &buf) == -1) 57 return -1; 58 59 *flags = 0; 60 #ifdef UF_IMMUTABLE 61 if (buf.st_flags & UF_IMMUTABLE) 62 *flags |= EXT2_IMMUTABLE_FL; 63 #endif 64 #ifdef UF_APPEND 65 if (buf.st_flags & UF_APPEND) 66 *flags |= EXT2_APPEND_FL; 67 #endif 68 #ifdef UF_NODUMP 69 if (buf.st_flags & UF_NODUMP) 70 *flags |= EXT2_NODUMP_FL; 71 #endif 72 73 return 0; 74 #elif APPLE_DARWIN && HAVE_EXT2_IOCTLS 75 int f, save_errno = 0; 76 77 f = -1; 78 save_errno = syscall(SYS_fsctl, name, EXT2_IOC_GETFLAGS, &f, 0); 79 *flags = f; 80 return (save_errno); 81 #elif HAVE_EXT2_IOCTLS 82 int fd, r, f, save_errno = 0; 83 84 fd = open(name, OPEN_FLAGS); 85 if (fd == -1) { 86 if (errno == ELOOP || errno == ENXIO) 87 errno = EOPNOTSUPP; 88 return -1; 89 } 90 r = ioctl(fd, EXT2_IOC_GETFLAGS, &f); 91 if (r == -1) { 92 if (errno == ENOTTY) 93 errno = EOPNOTSUPP; 94 save_errno = errno; 95 } 96 *flags = f; 97 close(fd); 98 if (save_errno) 99 errno = save_errno; 100 return r; 101 #else 102 errno = EOPNOTSUPP; 103 return -1; 104 #endif 105 }