diff options
Diffstat (limited to 'archivers/libarchive/files/libarchive/test/test_sparse_basic.c')
| -rw-r--r-- | archivers/libarchive/files/libarchive/test/test_sparse_basic.c | 73 |
1 files changed, 55 insertions, 18 deletions
diff --git a/archivers/libarchive/files/libarchive/test/test_sparse_basic.c b/archivers/libarchive/files/libarchive/test/test_sparse_basic.c index 3cea4595c95..9d45f0fedc1 100644 --- a/archivers/libarchive/files/libarchive/test/test_sparse_basic.c +++ b/archivers/libarchive/files/libarchive/test/test_sparse_basic.c @@ -57,7 +57,7 @@ __FBSDID("$FreeBSD$"); /* * NOTE: On FreeBSD and Solaris, this test needs ZFS. - * You may should perfom this test as + * You may perform this test as * 'TMPDIR=<a directory on the ZFS> libarchive_test'. */ @@ -146,28 +146,14 @@ create_sparse_file(const char *path, const struct sparse *s) #else -#if defined(_PC_MIN_HOLE_SIZE) - -/* - * FreeBSD and Solaris can detect 'hole' of a sparse file - * through lseek(HOLE) on ZFS. (UFS does not support yet) - */ - -static int -is_sparse_supported(const char *path) -{ - return (pathconf(path, _PC_MIN_HOLE_SIZE) > 0); -} - -#elif defined(__linux__)&& defined(HAVE_LINUX_FIEMAP_H) - +#if defined(HAVE_LINUX_FIEMAP_H) /* * FIEMAP, which can detect 'hole' of a sparse file, has * been supported from 2.6.28 */ static int -is_sparse_supported(const char *path) +is_sparse_supported_fiemap(const char *path) { const struct sparse sparse_file[] = { /* This hole size is too small to create a sparse @@ -198,7 +184,58 @@ is_sparse_supported(const char *path) return (r >= 0); } -#else +#if !defined(SEEK_HOLE) || !defined(SEEK_DATA) +static int +is_sparse_supported(const char *path) +{ + return is_sparse_supported_fiemap(path); +} +#endif +#endif + +#if defined(_PC_MIN_HOLE_SIZE) + +/* + * FreeBSD and Solaris can detect 'hole' of a sparse file + * through lseek(HOLE) on ZFS. (UFS does not support yet) + */ + +static int +is_sparse_supported(const char *path) +{ + return (pathconf(path, _PC_MIN_HOLE_SIZE) > 0); +} + +#elif defined(SEEK_HOLE) && defined(SEEK_DATA) + +static int +is_sparse_supported(const char *path) +{ + const struct sparse sparse_file[] = { + /* This hole size is too small to create a sparse + * files for almost filesystem. */ + { HOLE, 1024 }, { DATA, 10240 }, + { END, 0 } + }; + int fd, r; + const char *testfile = "can_sparse"; + + (void)path; /* UNUSED */ + create_sparse_file(testfile, sparse_file); + fd = open(testfile, O_RDWR); + if (fd < 0) + return (0); + r = lseek(fd, 0, SEEK_HOLE); + close(fd); + unlink(testfile); +#if defined(HAVE_LINUX_FIEMAP_H) + if (r < 0) + return (is_sparse_supported_fiemap(path)); +#endif + return (r >= 0); +} + +#elif !defined(HAVE_LINUX_FIEMAP_H) /* * Other system may do not have the API such as lseek(HOLE), |