| /* |
| * fsetflags.c - Set a file flags on an ext2 file system |
| * |
| * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr> |
| * Laboratoire MASI, Institut Blaise Pascal |
| * Universite Pierre et Marie Curie (Paris VI) |
| * |
| * %Begin-Header% |
| * This file may be redistributed under the terms of the GNU Library |
| * General Public License, version 2. |
| * %End-Header% |
| */ |
| |
| /* |
| * History: |
| * 93/10/30 - Creation |
| */ |
| |
| #define _LARGEFILE_SOURCE |
| #define _LARGEFILE64_SOURCE |
| |
| #if HAVE_ERRNO_H |
| #include <errno.h> |
| #endif |
| #if HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #if HAVE_EXT2_IOCTLS |
| #include <fcntl.h> |
| #include <sys/ioctl.h> |
| #endif |
| |
| #include "e2p.h" |
| |
| /* |
| * Deal with lame glibc's that define this function without actually |
| * implementing it. Can you say "attractive nuisance", boys and girls? |
| * I knew you could! |
| */ |
| #ifdef __linux__ |
| #undef HAVE_CHFLAGS |
| #endif |
| |
| #ifdef O_LARGEFILE |
| #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE) |
| #else |
| #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK) |
| #endif |
| |
| int fsetflags (const char * name, unsigned long flags) |
| { |
| #if HAVE_CHFLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS) |
| unsigned long bsd_flags = 0; |
| |
| #ifdef UF_IMMUTABLE |
| if (flags & EXT2_IMMUTABLE_FL) |
| bsd_flags |= UF_IMMUTABLE; |
| #endif |
| #ifdef UF_APPEND |
| if (flags & EXT2_APPEND_FL) |
| bsd_flags |= UF_APPEND; |
| #endif |
| #ifdef UF_NODUMP |
| if (flags & EXT2_NODUMP_FL) |
| bsd_flags |= UF_NODUMP; |
| #endif |
| |
| return chflags (name, bsd_flags); |
| #else /* !HAVE_CHFLAGS || (APPLE_DARWIN && HAVE_EXT2_IOCTLS) */ |
| #if HAVE_EXT2_IOCTLS |
| int fd, r, f, save_errno = 0; |
| struct stat buf; |
| |
| if (!lstat(name, &buf) && |
| !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) { |
| goto notsupp; |
| } |
| #if !APPLE_DARWIN |
| fd = open (name, OPEN_FLAGS); |
| if (fd == -1) |
| return -1; |
| f = (int) flags; |
| r = ioctl (fd, EXT2_IOC_SETFLAGS, &f); |
| if (r == -1) |
| save_errno = errno; |
| close (fd); |
| if (save_errno) |
| errno = save_errno; |
| #else /* APPLE_DARWIN */ |
| f = (int) flags; |
| return syscall(SYS_fsctl, name, EXT2_IOC_SETFLAGS, &f, 0); |
| #endif /* !APPLE_DARWIN */ |
| return r; |
| |
| notsupp: |
| #endif /* HAVE_EXT2_IOCTLS */ |
| #endif |
| errno = EOPNOTSUPP; |
| return -1; |
| } |