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 * 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 41int 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 92notsupp: 93 errno = EOPNOTSUPP; 94 return -1; 95} 96