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 * 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 #define _LARGEFILE_SOURCE 18 #define _LARGEFILE64_SOURCE 19 20 #if HAVE_ERRNO_H 21 #include <errno.h> 22 #endif 23 #if HAVE_UNISTD_H 24 #include <unistd.h> 25 #endif 26 #include <sys/types.h> 27 #include <sys/stat.h> 28 #if HAVE_EXT2_IOCTLS 29 #include <fcntl.h> 30 #include <sys/ioctl.h> 31 #endif 32 33 #include "e2p.h" 34 35 #ifdef O_LARGEFILE 36 #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE) 37 #else 38 #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK) 39 #endif 40 41 int fgetflags (const char * name, unsigned long * flags) 42 { 43 struct stat buf; 44 #if HAVE_STAT_FLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS) 45 46 if (stat (name, &buf) == -1) 47 return -1; 48 49 *flags = 0; 50 #ifdef UF_IMMUTABLE 51 if (buf.st_flags & UF_IMMUTABLE) 52 *flags |= EXT2_IMMUTABLE_FL; 53 #endif 54 #ifdef UF_APPEND 55 if (buf.st_flags & UF_APPEND) 56 *flags |= EXT2_APPEND_FL; 57 #endif 58 #ifdef UF_NODUMP 59 if (buf.st_flags & UF_NODUMP) 60 *flags |= EXT2_NODUMP_FL; 61 #endif 62 63 return 0; 64 #else 65 #if HAVE_EXT2_IOCTLS 66 int fd, r, f, save_errno = 0; 67 68 if (!lstat(name, &buf) && 69 !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) { 70 goto notsupp; 71 } 72 #if !APPLE_DARWIN 73 fd = open (name, OPEN_FLAGS); 74 if (fd == -1) 75 return -1; 76 r = ioctl (fd, EXT2_IOC_GETFLAGS, &f); 77 if (r == -1) 78 save_errno = errno; 79 *flags = f; 80 close (fd); 81 if (save_errno) 82 errno = save_errno; 83 return r; 84 #else 85 f = -1; 86 save_errno = syscall(SYS_fsctl, name, EXT2_IOC_GETFLAGS, &f, 0); 87 *flags = f; 88 return (save_errno); 89 #endif 90 #endif /* HAVE_EXT2_IOCTLS */ 91 #endif 92 notsupp: 93 errno = EOPNOTSUPP; 94 return -1; 95 } 96
