diff options
Diffstat (limited to 'e2fsprogs/e2fs_lib.c')
| -rw-r--r-- | e2fsprogs/e2fs_lib.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/e2fsprogs/e2fs_lib.c b/e2fsprogs/e2fs_lib.c index 8bd4da622..bc9aa53e5 100644 --- a/e2fsprogs/e2fs_lib.c +++ b/e2fsprogs/e2fs_lib.c @@ -51,14 +51,14 @@ int fgetsetversion(const char *name, unsigned long *get_version, unsigned long s { #if HAVE_EXT2_IOCTLS int fd, r; - IF_LONG_IS_WIDER(int ver;) + IF_LONG_IS_WIDER(unsigned ver;) fd = open(name, O_RDONLY | O_NONBLOCK); if (fd == -1) return -1; if (!get_version) { IF_LONG_IS_WIDER( - ver = (int) set_version; + ver = (unsigned) set_version; r = ioctl(fd, EXT2_IOC_SETVERSION, &ver); ) IF_LONG_IS_SAME( @@ -81,6 +81,32 @@ int fgetsetversion(const char *name, unsigned long *get_version, unsigned long s #endif /* ! HAVE_EXT2_IOCTLS */ } +int fgetsetprojid(const char *name, uint32_t *get, uint32_t set) +{ +#if HAVE_EXT2_IOCTLS + struct ext2_fsxattr fsxattr; + int fd, r; + + fd = open(name, O_RDONLY | O_NONBLOCK); + if (fd == -1) + return -1; + r = ioctl(fd, EXT2_IOC_FSGETXATTR, &fsxattr); + /* note: ^^^ may fail in 32-bit userspace on 64-bit kernel (seen on 4.12.0) */ + if (r == 0) { + if (get) { + *get = fsxattr.fsx_projid; + } else { + fsxattr.fsx_projid = set; + r = ioctl(fd, EXT2_IOC_FSSETXATTR, &fsxattr); + } + } + close_silently(fd); + return r; +#else /* ! HAVE_EXT2_IOCTLS */ + errno = EOPNOTSUPP; + return -1; +#endif /* ! HAVE_EXT2_IOCTLS */ +} /* Get/set a file flags on an ext2 file system */ int fgetsetflags(const char *name, unsigned long *get_flags, unsigned long set_flags) @@ -88,7 +114,7 @@ int fgetsetflags(const char *name, unsigned long *get_flags, unsigned long set_f #if HAVE_EXT2_IOCTLS struct stat buf; int fd, r; - IF_LONG_IS_WIDER(int f;) + IF_LONG_IS_WIDER(unsigned f;) if (stat(name, &buf) == 0 /* stat is ok */ && !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode) @@ -101,7 +127,7 @@ int fgetsetflags(const char *name, unsigned long *get_flags, unsigned long set_f if (!get_flags) { IF_LONG_IS_WIDER( - f = (int) set_flags; + f = (unsigned) set_flags; r = ioctl(fd, EXT2_IOC_SETFLAGS, &f); ) IF_LONG_IS_SAME( |