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