exfat: Update to 1.2.2
Change-Id: I160389afa074270c398aeb771845500f2445838a
diff --git a/exfat/libexfat/Android.mk b/exfat/libexfat/Android.mk
index a280abb..5476486 100644
--- a/exfat/libexfat/Android.mk
+++ b/exfat/libexfat/Android.mk
@@ -1,12 +1,11 @@
LOCAL_PATH := $(call my-dir)
-
include $(CLEAR_VARS)
LOCAL_MODULE := libexfat_twrp
LOCAL_MODULE_TAGS := optional
LOCAL_CFLAGS = -D_FILE_OFFSET_BITS=64
-LOCAL_SRC_FILES = cluster.c io.c log.c lookup.c mount.c node.c time.c utf.c utils.c
-LOCAL_C_INCLUDES += $(LOCAL_PATH) \
+LOCAL_SRC_FILES = cluster.c io.c log.c lookup.c mount.c node.c time.c utf.c utils.c
+LOCAL_C_INCLUDES += $(LOCAL_PATH)
LOCAL_SHARED_LIBRARIES += libc
include $(BUILD_SHARED_LIBRARY)
diff --git a/exfat/libexfat/COPYING b/exfat/libexfat/COPYING
deleted file mode 100644
index d159169..0000000
--- a/exfat/libexfat/COPYING
+++ /dev/null
@@ -1,339 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
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diff --git a/exfat/libexfat/android_config.h b/exfat/libexfat/android_config.h
new file mode 100644
index 0000000..09c3346
--- /dev/null
+++ b/exfat/libexfat/android_config.h
@@ -0,0 +1,37 @@
+/* libexfat/config.h. Generated from config.h.in by configure. */
+/* libexfat/config.h.in. Generated from configure.ac by autoheader. */
+
+/* Name of package */
+#define PACKAGE "exfat"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "relan@users.noreply.github.com"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "Free exFAT implementation"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "Free exFAT implementation 1.2.2"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "exfat"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL "https://github.com/relan/exfat"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "1.2.2"
+
+/* Version number of package */
+#define VERSION "1.2.2"
+
+/* Enable large inode numbers on Mac OS X 10.5. */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
diff --git a/exfat/libexfat/byteorder.h b/exfat/libexfat/byteorder.h
index 10746e1..472cb48 100644
--- a/exfat/libexfat/byteorder.h
+++ b/exfat/libexfat/byteorder.h
@@ -3,7 +3,7 @@
Endianness stuff. exFAT uses little-endian byte order.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -23,68 +23,16 @@
#ifndef BYTEORDER_H_INCLUDED
#define BYTEORDER_H_INCLUDED
-#define __GLIBC__
+#include "platform.h"
#include <stdint.h>
-
-#if defined(__GLIBC__)
-
-#include <endian.h>
-#include <byteswap.h>
-
-#elif defined(__APPLE__)
-
-#include <machine/endian.h>
-#include <libkern/OSByteOrder.h>
-#define bswap_16(x) OSSwapInt16(x)
-#define bswap_32(x) OSSwapInt32(x)
-#define bswap_64(x) OSSwapInt64(x)
-#define __BYTE_ORDER BYTE_ORDER
-#define __LITTLE_ENDIAN LITTLE_ENDIAN
-#define __BIG_ENDIAN BIG_ENDIAN
-
-#elif defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__)
-
-#include <sys/endian.h>
-#define bswap_16(x) bswap16(x)
-#define bswap_32(x) bswap32(x)
-#define bswap_64(x) bswap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__OpenBSD__)
-
-#include <machine/endian.h>
-#define bswap_16(x) swap16(x)
-#define bswap_32(x) swap32(x)
-#define bswap_64(x) swap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__sun)
-
-#include <sys/byteorder.h>
-#define bswap_16(x) BSWAP_16(x)
-#define bswap_32(x) BSWAP_32(x)
-#define bswap_64(x) BSWAP_64(x)
-#define __LITTLE_ENDIAN 1234
-#define __BIG_ENDIAN 4321
-#ifdef _LITTLE_ENDIAN
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#else
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
-
-#else
-#error No byte order macros available for your platform
-#endif
+#include <stddef.h>
typedef struct { uint16_t __u16; } le16_t;
typedef struct { uint32_t __u32; } le32_t;
typedef struct { uint64_t __u64; } le64_t;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if EXFAT_BYTE_ORDER == EXFAT_LITTLE_ENDIAN
+
static inline uint16_t le16_to_cpu(le16_t v) { return v.__u16; }
static inline uint32_t le32_to_cpu(le32_t v) { return v.__u32; }
static inline uint64_t le64_to_cpu(le64_t v) { return v.__u64; }
@@ -92,17 +40,27 @@
static inline le16_t cpu_to_le16(uint16_t v) { le16_t t = {v}; return t; }
static inline le32_t cpu_to_le32(uint32_t v) { le32_t t = {v}; return t; }
static inline le64_t cpu_to_le64(uint64_t v) { le64_t t = {v}; return t; }
-#elif __BYTE_ORDER == __BIG_ENDIAN
-static inline uint16_t le16_to_cpu(le16_t v) { return bswap_16(v.__u16); }
-static inline uint32_t le32_to_cpu(le32_t v) { return bswap_32(v.__u32); }
-static inline uint64_t le64_to_cpu(le64_t v) { return bswap_64(v.__u64); }
+
+typedef size_t bitmap_t;
+
+#elif EXFAT_BYTE_ORDER == EXFAT_BIG_ENDIAN
+
+static inline uint16_t le16_to_cpu(le16_t v)
+ { return exfat_bswap16(v.__u16); }
+static inline uint32_t le32_to_cpu(le32_t v)
+ { return exfat_bswap32(v.__u32); }
+static inline uint64_t le64_to_cpu(le64_t v)
+ { return exfat_bswap64(v.__u64); }
static inline le16_t cpu_to_le16(uint16_t v)
- { le16_t t = {bswap_16(v)}; return t; }
+ { le16_t t = {exfat_bswap16(v)}; return t; }
static inline le32_t cpu_to_le32(uint32_t v)
- { le32_t t = {bswap_32(v)}; return t; }
+ { le32_t t = {exfat_bswap32(v)}; return t; }
static inline le64_t cpu_to_le64(uint64_t v)
- { le64_t t = {bswap_64(v)}; return t; }
+ { le64_t t = {exfat_bswap64(v)}; return t; }
+
+typedef unsigned char bitmap_t;
+
#else
#error Wow! You have a PDP machine?!
#endif
diff --git a/exfat/libexfat/cluster.c b/exfat/libexfat/cluster.c
index 2215636..fc3657b 100644
--- a/exfat/libexfat/cluster.c
+++ b/exfat/libexfat/cluster.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -28,7 +28,7 @@
/*
* Sector to absolute offset.
*/
-static off64_t s2o(const struct exfat* ef, off64_t sector)
+static off_t s2o(const struct exfat* ef, off_t sector)
{
return sector << ef->sb->sector_bits;
}
@@ -36,18 +36,18 @@
/*
* Cluster to sector.
*/
-static off64_t c2s(const struct exfat* ef, cluster_t cluster)
+static off_t c2s(const struct exfat* ef, cluster_t cluster)
{
if (cluster < EXFAT_FIRST_DATA_CLUSTER)
exfat_bug("invalid cluster number %u", cluster);
return le32_to_cpu(ef->sb->cluster_sector_start) +
- ((off64_t) (cluster - EXFAT_FIRST_DATA_CLUSTER) << ef->sb->spc_bits);
+ ((off_t) (cluster - EXFAT_FIRST_DATA_CLUSTER) << ef->sb->spc_bits);
}
/*
* Cluster to absolute offset.
*/
-off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster)
+off_t exfat_c2o(const struct exfat* ef, cluster_t cluster)
{
return s2o(ef, c2s(ef, cluster));
}
@@ -55,7 +55,7 @@
/*
* Sector to cluster.
*/
-static cluster_t s2c(const struct exfat* ef, off64_t sector)
+static cluster_t s2c(const struct exfat* ef, off_t sector)
{
return ((sector - le32_to_cpu(ef->sb->cluster_sector_start)) >>
ef->sb->spc_bits) + EXFAT_FIRST_DATA_CLUSTER;
@@ -74,7 +74,7 @@
const struct exfat_node* node, cluster_t cluster)
{
le32_t next;
- off64_t fat_offset;
+ off_t fat_offset;
if (cluster < EXFAT_FIRST_DATA_CLUSTER)
exfat_bug("bad cluster 0x%x", cluster);
@@ -83,9 +83,9 @@
return cluster + 1;
fat_offset = s2o(ef, le32_to_cpu(ef->sb->fat_sector_start))
+ cluster * sizeof(cluster_t);
- /* FIXME handle I/O error */
if (exfat_pread(ef->dev, &next, sizeof(next), fat_offset) < 0)
- exfat_bug("failed to read the next cluster after %#x", cluster);
+ return EXFAT_CLUSTER_BAD; /* the caller should handle this and print
+ appropriate error message */
return le32_to_cpu(next);
}
@@ -136,6 +136,24 @@
return EXFAT_CLUSTER_END;
}
+static int flush_nodes(struct exfat* ef, struct exfat_node* node)
+{
+ struct exfat_node* p;
+
+ for (p = node->child; p != NULL; p = p->next)
+ {
+ int rc = flush_nodes(ef, p);
+ if (rc != 0)
+ return rc;
+ }
+ return exfat_flush_node(ef, node);
+}
+
+int exfat_flush_nodes(struct exfat* ef)
+{
+ return flush_nodes(ef, ef->root);
+}
+
int exfat_flush(struct exfat* ef)
{
if (ef->cmap.dirty)
@@ -149,13 +167,14 @@
}
ef->cmap.dirty = false;
}
+
return 0;
}
static bool set_next_cluster(const struct exfat* ef, bool contiguous,
cluster_t current, cluster_t next)
{
- off64_t fat_offset;
+ off_t fat_offset;
le32_t next_le32;
if (contiguous)
@@ -316,6 +335,7 @@
{
previous = node->start_cluster;
node->start_cluster = EXFAT_CLUSTER_FREE;
+ node->flags |= EXFAT_ATTRIB_DIRTY;
}
node->fptr_index = 0;
node->fptr_cluster = node->start_cluster;
@@ -339,7 +359,7 @@
return 0;
}
-static bool erase_raw(struct exfat* ef, size_t size, off64_t offset)
+static bool erase_raw(struct exfat* ef, size_t size, off_t offset)
{
if (exfat_pwrite(ef->dev, ef->zero_cluster, size, offset) < 0)
{
@@ -452,7 +472,7 @@
return 0;
}
-int exfat_find_used_sectors(const struct exfat* ef, off64_t* a, off64_t* b)
+int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b)
{
cluster_t ca, cb;
diff --git a/exfat/libexfat/compiler.h b/exfat/libexfat/compiler.h
index 6edd8ec..3b092a9 100644
--- a/exfat/libexfat/compiler.h
+++ b/exfat/libexfat/compiler.h
@@ -4,7 +4,7 @@
showstopper.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -24,6 +24,10 @@
#ifndef COMPILER_H_INCLUDED
#define COMPILER_H_INCLUDED
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ < 199901L)
+#error C99-compliant compiler is required
+#endif
+
#if defined(__clang__)
#define PRINTF __attribute__((format(printf, 1, 2)))
diff --git a/exfat/libexfat/exfat.h b/exfat/libexfat/exfat.h
index ff58e84..5beba7c 100644
--- a/exfat/libexfat/exfat.h
+++ b/exfat/libexfat/exfat.h
@@ -4,7 +4,7 @@
implementation.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -24,15 +24,19 @@
#ifndef EXFAT_H_INCLUDED
#define EXFAT_H_INCLUDED
+#if defined(__ANDROID__)
+#include "android_config.h"
+#else
+#include "config.h"
+#endif
+#include "compiler.h"
+#include "exfatfs.h"
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include "compiler.h"
-#include "exfatfs.h"
-#include "version.h"
#define EXFAT_NAME_MAX 256
#define EXFAT_ATTRIB_CONTIGUOUS 0x10000
@@ -51,7 +55,6 @@
#define ROUND_UP(x, d) (DIV_ROUND_UP(x, d) * (d))
#define UTF8_BYTES(c) ((c) * 6) /* UTF-8 character can occupy up to 6 bytes */
-typedef size_t bitmap_t;
#define BMAP_SIZE(count) (ROUND_UP(count, sizeof(bitmap_t) * 8) / 8)
#define BMAP_BLOCK(index) ((index) / sizeof(bitmap_t) / 8)
#define BMAP_MASK(index) ((bitmap_t) 1 << ((index) % (sizeof(bitmap_t) * 8)))
@@ -62,6 +65,10 @@
#define BMAP_CLR(bitmap, index) \
((bitmap)[BMAP_BLOCK(index)] &= ~BMAP_MASK(index))
+/* The size of off_t type must be 64 bits. File systems larger than 2 GB will
+ be corrupted with 32-bit off_t. */
+STATIC_ASSERT(sizeof(off_t) == 8);
+
struct exfat_node
{
struct exfat_node* parent;
@@ -73,7 +80,7 @@
uint32_t fptr_index;
cluster_t fptr_cluster;
cluster_t entry_cluster;
- off64_t entry_offset;
+ off_t entry_offset;
cluster_t start_cluster;
int flags;
uint64_t size;
@@ -139,18 +146,18 @@
int exfat_close(struct exfat_dev* dev);
int exfat_fsync(struct exfat_dev* dev);
enum exfat_mode exfat_get_mode(const struct exfat_dev* dev);
-off64_t exfat_get_size(const struct exfat_dev* dev);
-off64_t exfat_seek(struct exfat_dev* dev, off64_t offset, int whence);
+off_t exfat_get_size(const struct exfat_dev* dev);
+off_t exfat_seek(struct exfat_dev* dev, off_t offset, int whence);
ssize_t exfat_read(struct exfat_dev* dev, void* buffer, size_t size);
ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size);
ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
- off64_t offset);
+ off_t offset);
ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
- off64_t offset);
+ off_t offset);
ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
- void* buffer, size_t size, off64_t offset);
+ void* buffer, size_t size, off_t offset);
ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node,
- const void* buffer, size_t size, off64_t offset);
+ const void* buffer, size_t size, off_t offset);
int exfat_opendir(struct exfat* ef, struct exfat_node* dir,
struct exfat_iterator* it);
@@ -161,16 +168,17 @@
int exfat_split(struct exfat* ef, struct exfat_node** parent,
struct exfat_node** node, le16_t* name, const char* path);
-off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
+off_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
cluster_t exfat_next_cluster(const struct exfat* ef,
const struct exfat_node* node, cluster_t cluster);
cluster_t exfat_advance_cluster(const struct exfat* ef,
struct exfat_node* node, uint32_t count);
+int exfat_flush_nodes(struct exfat* ef);
int exfat_flush(struct exfat* ef);
int exfat_truncate(struct exfat* ef, struct exfat_node* node, uint64_t size,
bool erase);
uint32_t exfat_count_free_clusters(const struct exfat* ef);
-int exfat_find_used_sectors(const struct exfat* ef, off64_t* a, off64_t* b);
+int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b);
void exfat_stat(const struct exfat* ef, const struct exfat_node* node,
struct stat* stbuf);
@@ -194,6 +202,7 @@
struct exfat_node* exfat_get_node(struct exfat_node* node);
void exfat_put_node(struct exfat* ef, struct exfat_node* node);
+int exfat_cleanup_node(struct exfat* ef, struct exfat_node* node);
int exfat_cache_directory(struct exfat* ef, struct exfat_node* dir);
void exfat_reset_cache(struct exfat* ef);
int exfat_flush_node(struct exfat* ef, struct exfat_node* node);
diff --git a/exfat/libexfat/exfatfs.h b/exfat/libexfat/exfatfs.h
index a436daa..eca2cac 100644
--- a/exfat/libexfat/exfatfs.h
+++ b/exfat/libexfat/exfatfs.h
@@ -3,7 +3,7 @@
Definitions of structures and constants used in exFAT file system.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -24,6 +24,7 @@
#define EXFATFS_H_INCLUDED
#include "byteorder.h"
+#include "compiler.h"
typedef uint32_t cluster_t; /* cluster number */
@@ -69,6 +70,7 @@
#define EXFAT_ENTRY_VALID 0x80
#define EXFAT_ENTRY_CONTINUED 0x40
+#define EXFAT_ENTRY_OPTIONAL 0x20
#define EXFAT_ENTRY_BITMAP (0x01 | EXFAT_ENTRY_VALID)
#define EXFAT_ENTRY_UPCASE (0x02 | EXFAT_ENTRY_VALID)
@@ -153,10 +155,10 @@
uint8_t name_length;
le16_t name_hash;
le16_t __unknown2;
- le64_t real_size; /* in bytes, equals to size */
+ le64_t valid_size; /* in bytes, less or equal to size */
uint8_t __unknown3[4];
le32_t start_cluster;
- le64_t size; /* in bytes, equals to real_size */
+ le64_t size; /* in bytes */
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_meta2) == 32);
diff --git a/exfat/libexfat/io.c b/exfat/libexfat/io.c
index 306c5dd..3d7aaad 100644
--- a/exfat/libexfat/io.c
+++ b/exfat/libexfat/io.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -24,13 +24,19 @@
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
-#include <sys/mount.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
-#ifdef __APPLE__
+#include <errno.h>
+#if defined(__APPLE__)
#include <sys/disk.h>
+#elif defined(__OpenBSD__)
+#include <sys/param.h>
+#include <sys/disklabel.h>
+#include <sys/dkio.h>
+#include <sys/ioctl.h>
#endif
+#include <sys/mount.h>
#ifdef USE_UBLIO
#include <sys/uio.h>
#include <ublio.h>
@@ -40,9 +46,9 @@
{
int fd;
enum exfat_mode mode;
- off64_t size; /* in bytes */
+ off_t size; /* in bytes */
#ifdef USE_UBLIO
- off64_t pos;
+ off_t pos;
ublio_filehandle_t ufh;
#endif
};
@@ -65,6 +71,7 @@
if (fd != -1 && ioctl(fd, BLKROGET, &ro) == 0 && ro)
{
close(fd);
+ errno = EROFS;
return -1;
}
#endif
@@ -93,7 +100,8 @@
if (dev->fd == -1)
{
free(dev);
- exfat_error("failed to open `%s' in read-only mode", spec);
+ exfat_error("failed to open '%s' in read-only mode: %s", spec,
+ strerror(errno));
return NULL;
}
dev->mode = EXFAT_MODE_RO;
@@ -103,7 +111,8 @@
if (dev->fd == -1)
{
free(dev);
- exfat_error("failed to open `%s' in read-write mode", spec);
+ exfat_error("failed to open '%s' in read-write mode: %s", spec,
+ strerror(errno));
return NULL;
}
dev->mode = EXFAT_MODE_RW;
@@ -119,11 +128,11 @@
if (dev->fd != -1)
{
dev->mode = EXFAT_MODE_RO;
- exfat_warn("`%s' is write-protected, mounting read-only", spec);
+ exfat_warn("'%s' is write-protected, mounting read-only", spec);
break;
}
free(dev);
- exfat_error("failed to open `%s'", spec);
+ exfat_error("failed to open '%s': %s", spec, strerror(errno));
return NULL;
}
@@ -131,7 +140,7 @@
{
close(dev->fd);
free(dev);
- exfat_error("failed to fstat `%s'", spec);
+ exfat_error("failed to fstat '%s'", spec);
return NULL;
}
if (!S_ISBLK(stbuf.st_mode) &&
@@ -140,11 +149,11 @@
{
close(dev->fd);
free(dev);
- exfat_error("`%s' is neither a device, nor a regular file", spec);
+ exfat_error("'%s' is neither a device, nor a regular file", spec);
return NULL;
}
-#ifdef __APPLE__
+#if defined(__APPLE__)
if (!S_ISREG(stbuf.st_mode))
{
uint32_t block_size = 0;
@@ -167,6 +176,32 @@
dev->size = blocks * block_size;
}
else
+#elif defined(__OpenBSD__)
+ if (!S_ISREG(stbuf.st_mode))
+ {
+ struct disklabel lab;
+ struct partition* pp;
+ char* partition;
+
+ if (ioctl(dev->fd, DIOCGDINFO, &lab) == -1)
+ {
+ close(dev->fd);
+ free(dev);
+ exfat_error("failed to get disklabel");
+ return NULL;
+ }
+
+ /* Don't need to check that partition letter is valid as we won't get
+ this far otherwise. */
+ partition = strchr(spec, '\0') - 1;
+ pp = &(lab.d_partitions[*partition - 'a']);
+ dev->size = DL_GETPSIZE(pp) * lab.d_secsize;
+
+ if (pp->p_fstype != FS_NTFS)
+ exfat_warn("partition type is not 0x07 (NTFS/exFAT); "
+ "you can fix this with fdisk(8)");
+ }
+ else
#endif
{
/* works for Linux, FreeBSD, Solaris */
@@ -175,14 +210,14 @@
{
close(dev->fd);
free(dev);
- exfat_error("failed to get size of `%s'", spec);
+ exfat_error("failed to get size of '%s'", spec);
return NULL;
}
if (exfat_seek(dev, 0, SEEK_SET) == -1)
{
close(dev->fd);
free(dev);
- exfat_error("failed to seek to the beginning of `%s'", spec);
+ exfat_error("failed to seek to the beginning of '%s'", spec);
return NULL;
}
}
@@ -210,32 +245,41 @@
int exfat_close(struct exfat_dev* dev)
{
+ int rc = 0;
+
#ifdef USE_UBLIO
if (ublio_close(dev->ufh) != 0)
+ {
exfat_error("failed to close ublio");
+ rc = -EIO;
+ }
#endif
if (close(dev->fd) != 0)
{
- free(dev);
- exfat_error("failed to close device");
- return 1;
+ exfat_error("failed to close device: %s", strerror(errno));
+ rc = -EIO;
}
free(dev);
- return 0;
+ return rc;
}
int exfat_fsync(struct exfat_dev* dev)
{
+ int rc = 0;
+
#ifdef USE_UBLIO
if (ublio_fsync(dev->ufh) != 0)
-#else
- if (fsync(dev->fd) != 0)
-#endif
{
- exfat_error("fsync failed");
- return 1;
+ exfat_error("ublio fsync failed");
+ rc = -EIO;
}
- return 0;
+#endif
+ if (fsync(dev->fd) != 0)
+ {
+ exfat_error("fsync failed: %s", strerror(errno));
+ rc = -EIO;
+ }
+ return rc;
}
enum exfat_mode exfat_get_mode(const struct exfat_dev* dev)
@@ -243,18 +287,18 @@
return dev->mode;
}
-off64_t exfat_get_size(const struct exfat_dev* dev)
+off_t exfat_get_size(const struct exfat_dev* dev)
{
return dev->size;
}
-off64_t exfat_seek(struct exfat_dev* dev, off64_t offset, int whence)
+off_t exfat_seek(struct exfat_dev* dev, off_t offset, int whence)
{
#ifdef USE_UBLIO
/* XXX SEEK_CUR will be handled incorrectly */
- return dev->pos = lseek64(dev->fd, offset, whence);
+ return dev->pos = lseek(dev->fd, offset, whence);
#else
- return lseek64(dev->fd, offset, whence);
+ return lseek(dev->fd, offset, whence);
#endif
}
@@ -283,31 +327,31 @@
}
ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
- off64_t offset)
+ off_t offset)
{
#ifdef USE_UBLIO
return ublio_pread(dev->ufh, buffer, size, offset);
#else
- return pread64(dev->fd, buffer, size, offset);
+ return pread(dev->fd, buffer, size, offset);
#endif
}
ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
- off64_t offset)
+ off_t offset)
{
#ifdef USE_UBLIO
return ublio_pwrite(dev->ufh, buffer, size, offset);
#else
- return pwrite64(dev->fd, buffer, size, offset);
+ return pwrite(dev->fd, buffer, size, offset);
#endif
}
ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
- void* buffer, size_t size, off64_t offset)
+ void* buffer, size_t size, off_t offset)
{
cluster_t cluster;
char* bufp = buffer;
- off64_t lsize, loffset, remainder;
+ off_t lsize, loffset, remainder;
if (offset >= node->size)
return 0;
@@ -348,11 +392,11 @@
}
ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node,
- const void* buffer, size_t size, off64_t offset)
+ const void* buffer, size_t size, off_t offset)
{
cluster_t cluster;
const char* bufp = buffer;
- off64_t lsize, loffset, remainder;
+ off_t lsize, loffset, remainder;
if (offset > node->size)
if (exfat_truncate(ef, node, offset, true) != 0)
diff --git a/exfat/libexfat/log.c b/exfat/libexfat/log.c
index 7e541aa..38c79d4 100644
--- a/exfat/libexfat/log.c
+++ b/exfat/libexfat/log.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -47,7 +47,11 @@
vsyslog(LOG_CRIT, format, aq);
va_end(aq);
+#if defined(__ANDROID__)
+ exit(-1);
+#else
abort();
+#endif
}
/*
diff --git a/exfat/libexfat/lookup.c b/exfat/libexfat/lookup.c
index 00cd533..d5bb389 100644
--- a/exfat/libexfat/lookup.c
+++ b/exfat/libexfat/lookup.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
diff --git a/exfat/libexfat/mount.c b/exfat/libexfat/mount.c
index 928c561..0d6ce9e 100644
--- a/exfat/libexfat/mount.c
+++ b/exfat/libexfat/mount.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -24,22 +24,38 @@
#include <string.h>
#include <stdlib.h>
#include <errno.h>
+#include <inttypes.h>
#include <unistd.h>
#include <sys/types.h>
static uint64_t rootdir_size(const struct exfat* ef)
{
- uint64_t clusters = 0;
+ uint32_t clusters = 0;
+ uint32_t clusters_max = le32_to_cpu(ef->sb->cluster_count);
cluster_t rootdir_cluster = le32_to_cpu(ef->sb->rootdir_cluster);
- while (!CLUSTER_INVALID(rootdir_cluster))
+ /* Iterate all clusters of the root directory to calculate its size.
+ It can't be contiguous because there is no flag to indicate this. */
+ do
{
- clusters++;
- /* root directory cannot be contiguous because there is no flag
- to indicate this */
+ if (clusters == clusters_max) /* infinite loop detected */
+ {
+ exfat_error("root directory cannot occupy all %d clusters",
+ clusters);
+ return 0;
+ }
+ if (CLUSTER_INVALID(rootdir_cluster))
+ {
+ exfat_error("bad cluster %#x while reading root directory",
+ rootdir_cluster);
+ return 0;
+ }
rootdir_cluster = exfat_next_cluster(ef, ef->root, rootdir_cluster);
+ clusters++;
}
- return clusters * CLUSTER_SIZE(*ef->sb);
+ while (rootdir_cluster != EXFAT_CLUSTER_END);
+
+ return (uint64_t) clusters * CLUSTER_SIZE(*ef->sb);
}
static const char* get_option(const char* options, const char* option_name)
@@ -77,13 +93,11 @@
static void parse_options(struct exfat* ef, const char* options)
{
- int sys_umask = umask(0);
int opt_umask;
- umask(sys_umask); /* restore umask */
- opt_umask = get_int_option(options, "umask", 8, sys_umask);
- ef->dmask = get_int_option(options, "dmask", 8, opt_umask) & 0777;
- ef->fmask = get_int_option(options, "fmask", 8, opt_umask) & 0777;
+ opt_umask = get_int_option(options, "umask", 8, 0);
+ ef->dmask = get_int_option(options, "dmask", 8, opt_umask);
+ ef->fmask = get_int_option(options, "fmask", 8, opt_umask);
ef->uid = get_int_option(options, "uid", 10, geteuid());
ef->gid = get_int_option(options, "gid", 10, getegid());
@@ -91,8 +105,8 @@
ef->noatime = match_option(options, "noatime");
}
-static int verify_vbr_checksum(struct exfat_dev* dev, void* sector,
- off64_t sector_size)
+static bool verify_vbr_checksum(struct exfat_dev* dev, void* sector,
+ off_t sector_size)
{
uint32_t vbr_checksum;
int i;
@@ -100,7 +114,7 @@
if (exfat_pread(dev, sector, sector_size, 0) < 0)
{
exfat_error("failed to read boot sector");
- return 1;
+ return false;
}
vbr_checksum = exfat_vbr_start_checksum(sector, sector_size);
for (i = 1; i < 11; i++)
@@ -108,7 +122,7 @@
if (exfat_pread(dev, sector, sector_size, i * sector_size) < 0)
{
exfat_error("failed to read VBR sector");
- return 1;
+ return false;
}
vbr_checksum = exfat_vbr_add_checksum(sector, sector_size,
vbr_checksum);
@@ -116,16 +130,16 @@
if (exfat_pread(dev, sector, sector_size, i * sector_size) < 0)
{
exfat_error("failed to read VBR checksum sector");
- return 1;
+ return false;
}
for (i = 0; i < sector_size / sizeof(vbr_checksum); i++)
if (le32_to_cpu(((const le32_t*) sector)[i]) != vbr_checksum)
{
exfat_error("invalid VBR checksum 0x%x (expected 0x%x)",
le32_to_cpu(((const le32_t*) sector)[i]), vbr_checksum);
- return 1;
+ return false;
}
- return 0;
+ return true;
}
static int commit_super_block(const struct exfat* ef)
@@ -201,31 +215,23 @@
exfat_error("exFAT file system is not found");
return -EIO;
}
- if (ef->sb->version.major != 1 || ef->sb->version.minor != 0)
+ /* sector cannot be smaller than 512 bytes */
+ if (ef->sb->sector_bits < 9)
{
exfat_close(ef->dev);
- exfat_error("unsupported exFAT version: %hhu.%hhu",
- ef->sb->version.major, ef->sb->version.minor);
+ exfat_error("too small sector size: 2^%hhd", ef->sb->sector_bits);
free(ef->sb);
return -EIO;
}
- if (ef->sb->fat_count != 1)
- {
- exfat_close(ef->dev);
- free(ef->sb);
- exfat_error("unsupported FAT count: %hhu", ef->sb->fat_count);
- return -EIO;
- }
/* officially exFAT supports cluster size up to 32 MB */
if ((int) ef->sb->sector_bits + (int) ef->sb->spc_bits > 25)
{
exfat_close(ef->dev);
+ exfat_error("too big cluster size: 2^(%hhd+%hhd)",
+ ef->sb->sector_bits, ef->sb->spc_bits);
free(ef->sb);
- exfat_error("too big cluster size: 2^%d",
- (int) ef->sb->sector_bits + (int) ef->sb->spc_bits);
return -EIO;
}
-
ef->zero_cluster = malloc(CLUSTER_SIZE(*ef->sb));
if (ef->zero_cluster == NULL)
{
@@ -235,8 +241,7 @@
return -ENOMEM;
}
/* use zero_cluster as a temporary buffer for VBR checksum verification */
- if (verify_vbr_checksum(ef->dev, ef->zero_cluster,
- SECTOR_SIZE(*ef->sb)) != 0)
+ if (!verify_vbr_checksum(ef->dev, ef->zero_cluster, SECTOR_SIZE(*ef->sb)))
{
free(ef->zero_cluster);
exfat_close(ef->dev);
@@ -244,6 +249,33 @@
return -EIO;
}
memset(ef->zero_cluster, 0, CLUSTER_SIZE(*ef->sb));
+ if (ef->sb->version.major != 1 || ef->sb->version.minor != 0)
+ {
+ free(ef->zero_cluster);
+ exfat_close(ef->dev);
+ exfat_error("unsupported exFAT version: %hhu.%hhu",
+ ef->sb->version.major, ef->sb->version.minor);
+ free(ef->sb);
+ return -EIO;
+ }
+ if (ef->sb->fat_count != 1)
+ {
+ free(ef->zero_cluster);
+ exfat_close(ef->dev);
+ exfat_error("unsupported FAT count: %hhu", ef->sb->fat_count);
+ free(ef->sb);
+ return -EIO;
+ }
+ if (le64_to_cpu(ef->sb->sector_count) * SECTOR_SIZE(*ef->sb) >
+ exfat_get_size(ef->dev))
+ {
+ /* this can cause I/O errors later but we don't fail mounting to let
+ user rescue data */
+ exfat_warn("file system is larger than underlying device: "
+ "%"PRIu64" > %"PRIu64,
+ le64_to_cpu(ef->sb->sector_count) * SECTOR_SIZE(*ef->sb),
+ exfat_get_size(ef->dev));
+ }
ef->root = malloc(sizeof(struct exfat_node));
if (ef->root == NULL)
@@ -260,6 +292,14 @@
ef->root->fptr_cluster = ef->root->start_cluster;
ef->root->name[0] = cpu_to_le16('\0');
ef->root->size = rootdir_size(ef);
+ if (ef->root->size == 0)
+ {
+ free(ef->root);
+ free(ef->zero_cluster);
+ exfat_close(ef->dev);
+ free(ef->sb);
+ return -EIO;
+ }
/* exFAT does not have time attributes for the root directory */
ef->root->mtime = 0;
ef->root->atime = 0;
@@ -314,11 +354,13 @@
ef->sb->allocated_percent = ((total - free) * 100 + total / 2) / total;
}
- commit_super_block(ef);
+ commit_super_block(ef); /* ignore return code */
}
void exfat_unmount(struct exfat* ef)
{
+ exfat_flush_nodes(ef); /* ignore return code */
+ exfat_flush(ef); /* ignore return code */
exfat_put_node(ef, ef->root);
exfat_reset_cache(ef);
free(ef->root);
diff --git a/exfat/libexfat/node.c b/exfat/libexfat/node.c
index 56205fc..d05f20d 100644
--- a/exfat/libexfat/node.c
+++ b/exfat/libexfat/node.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -29,7 +29,7 @@
struct iterator
{
cluster_t cluster;
- off64_t offset;
+ off_t offset;
int contiguous;
char* chunk;
};
@@ -44,34 +44,50 @@
void exfat_put_node(struct exfat* ef, struct exfat_node* node)
{
- if (--node->references < 0)
- {
- char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
- exfat_get_name(node, buffer, sizeof(buffer) - 1);
- exfat_bug("reference counter of `%s' is below zero", buffer);
- }
+ char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
- if (node->references == 0)
+ --node->references;
+ if (node->references < 0)
{
- /* FIXME handle I/O error */
- if (exfat_flush_node(ef, node) != 0)
- exfat_bug("node flush failed");
- if (node->flags & EXFAT_ATTRIB_UNLINKED)
- {
- /* free all clusters and node structure itself */
- exfat_truncate(ef, node, 0, true);
- free(node);
- }
- /* FIXME handle I/O error */
- if (exfat_flush(ef) != 0)
- exfat_bug("flush failed");
+ exfat_get_name(node, buffer, sizeof(buffer) - 1);
+ exfat_bug("reference counter of '%s' is below zero", buffer);
}
+ else if (node->references == 0 && node != ef->root)
+ {
+ if (node->flags & EXFAT_ATTRIB_DIRTY)
+ {
+ exfat_get_name(node, buffer, sizeof(buffer) - 1);
+ exfat_warn("dirty node '%s' with zero references", buffer);
+ }
+ }
+}
+
+/**
+ * This function must be called on rmdir and unlink (after the last
+ * exfat_put_node()) to free clusters.
+ */
+int exfat_cleanup_node(struct exfat* ef, struct exfat_node* node)
+{
+ int rc = 0;
+
+ if (node->references != 0)
+ exfat_bug("unable to cleanup a node with %d references",
+ node->references);
+
+ if (node->flags & EXFAT_ATTRIB_UNLINKED)
+ {
+ /* free all clusters and node structure itself */
+ rc = exfat_truncate(ef, node, 0, true);
+ /* free the node even in case of error or its memory will be lost */
+ free(node);
+ }
+ return rc;
}
/**
* Cluster + offset from the beginning of the directory to absolute offset.
*/
-static off64_t co2o(struct exfat* ef, cluster_t cluster, off64_t offset)
+static off_t co2o(struct exfat* ef, cluster_t cluster, off_t offset)
{
return exfat_c2o(ef, cluster) + offset % CLUSTER_SIZE(*ef->sb);
}
@@ -108,7 +124,7 @@
it->chunk = NULL;
}
-static int fetch_next_entry(struct exfat* ef, const struct exfat_node* parent,
+static bool fetch_next_entry(struct exfat* ef, const struct exfat_node* parent,
struct iterator* it)
{
/* move iterator to the next entry in the directory */
@@ -119,23 +135,23 @@
/* reached the end of directory; the caller should check this
condition too */
if (it->offset >= parent->size)
- return 0;
+ return true;
it->cluster = exfat_next_cluster(ef, parent, it->cluster);
if (CLUSTER_INVALID(it->cluster))
{
exfat_error("invalid cluster 0x%x while reading directory",
it->cluster);
- return 1;
+ return false;
}
if (exfat_pread(ef->dev, it->chunk, CLUSTER_SIZE(*ef->sb),
exfat_c2o(ef, it->cluster)) < 0)
{
exfat_error("failed to read the next directory cluster %#x",
it->cluster);
- return 1;
+ return false;
}
}
- return 0;
+ return true;
}
static struct exfat_node* allocate_node(void)
@@ -177,6 +193,40 @@
(it->chunk + it->offset % CLUSTER_SIZE(*ef->sb));
}
+static bool check_node(const struct exfat_node* node, uint16_t actual_checksum,
+ uint16_t reference_checksum, uint64_t valid_size)
+{
+ char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
+ /*
+ Validate checksum first. If it's invalid all other fields probably
+ contain just garbage.
+ */
+ if (actual_checksum != reference_checksum)
+ {
+ exfat_get_name(node, buffer, sizeof(buffer) - 1);
+ exfat_error("'%s' has invalid checksum (%#hx != %#hx)", buffer,
+ actual_checksum, reference_checksum);
+ return false;
+ }
+
+ /*
+ exFAT does not support sparse files but allows files with uninitialized
+ clusters. For such files valid_size means initialized data size and
+ cannot be greater than file size. See SetFileValidData() function
+ description in MSDN.
+ */
+ if (valid_size > node->size)
+ {
+ exfat_get_name(node, buffer, sizeof(buffer) - 1);
+ exfat_error("'%s' has valid size (%"PRIu64") greater than size "
+ "(%"PRIu64")", buffer, valid_size, node->size);
+ return false;
+ }
+
+ return true;
+}
+
/*
* Reads one entry in directory at position pointed by iterator and fills
* node structure.
@@ -196,7 +246,7 @@
le16_t* namep = NULL;
uint16_t reference_checksum = 0;
uint16_t actual_checksum = 0;
- uint64_t real_size = 0;
+ uint64_t valid_size = 0;
*node = NULL;
@@ -267,7 +317,7 @@
}
init_node_meta2(*node, meta2);
actual_checksum = exfat_add_checksum(entry, actual_checksum);
- real_size = le64_to_cpu(meta2->real_size);
+ valid_size = le64_to_cpu(meta2->valid_size);
/* empty files must be marked as non-contiguous */
if ((*node)->size == 0 && (meta2->flags & EXFAT_FLAG_CONTIGUOUS))
{
@@ -302,37 +352,10 @@
namep += EXFAT_ENAME_MAX;
if (--continuations == 0)
{
- /*
- There are two fields that contain file size. Maybe they
- plan to add compression support in the future and one of
- those fields is visible (uncompressed) size and the other
- is real (compressed) size. Anyway, currently it looks like
- exFAT does not support compression and both fields must be
- equal.
-
- There is an exception though: pagefile.sys (its real_size
- is always 0).
- */
- if (real_size != (*node)->size)
- {
- char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
-
- exfat_get_name(*node, buffer, sizeof(buffer) - 1);
- exfat_error("`%s' real size does not equal to size "
- "(%"PRIu64" != %"PRIu64")", buffer,
- real_size, (*node)->size);
+ if (!check_node(*node, actual_checksum, reference_checksum,
+ valid_size))
goto error;
- }
- if (actual_checksum != reference_checksum)
- {
- char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
-
- exfat_get_name(*node, buffer, sizeof(buffer) - 1);
- exfat_error("`%s' has invalid checksum (0x%hx != 0x%hx)",
- buffer, actual_checksum, reference_checksum);
- goto error;
- }
- if (fetch_next_entry(ef, parent, it) != 0)
+ if (!fetch_next_entry(ef, parent, it))
goto error;
return 0; /* entry completed */
}
@@ -431,15 +454,25 @@
break;
default:
- if (entry->type & EXFAT_ENTRY_VALID)
+ if (!(entry->type & EXFAT_ENTRY_VALID))
+ break; /* deleted entry, ignore it */
+ if (!(entry->type & EXFAT_ENTRY_OPTIONAL))
{
- exfat_error("unknown entry type 0x%hhx", entry->type);
+ exfat_error("unknown entry type %#hhx", entry->type);
goto error;
}
+ /* optional entry, warn and skip */
+ exfat_warn("unknown entry type %#hhx", entry->type);
+ if (continuations == 0)
+ {
+ exfat_error("unexpected continuation");
+ goto error;
+ }
+ --continuations;
break;
}
- if (fetch_next_entry(ef, parent, it) != 0)
+ if (!fetch_next_entry(ef, parent, it))
goto error;
}
/* we never reach here */
@@ -520,6 +553,8 @@
static void reset_cache(struct exfat* ef, struct exfat_node* node)
{
+ char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
while (node->child)
{
struct exfat_node* p = node->child;
@@ -530,11 +565,15 @@
node->flags &= ~EXFAT_ATTRIB_CACHED;
if (node->references != 0)
{
- char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
exfat_get_name(node, buffer, sizeof(buffer) - 1);
- exfat_warn("non-zero reference counter (%d) for `%s'",
+ exfat_warn("non-zero reference counter (%d) for '%s'",
node->references, buffer);
}
+ if (node != ef->root && (node->flags & EXFAT_ATTRIB_DIRTY))
+ {
+ exfat_get_name(node, buffer, sizeof(buffer) - 1);
+ exfat_bug("node '%s' is dirty", buffer);
+ }
while (node->references)
exfat_put_node(ef, node);
}
@@ -544,20 +583,28 @@
reset_cache(ef, ef->root);
}
-static void next_entry(struct exfat* ef, const struct exfat_node* parent,
- cluster_t* cluster, off64_t* offset)
+static bool next_entry(struct exfat* ef, const struct exfat_node* parent,
+ cluster_t* cluster, off_t* offset)
{
*offset += sizeof(struct exfat_entry);
if (*offset % CLUSTER_SIZE(*ef->sb) == 0)
- /* next cluster cannot be invalid */
+ {
*cluster = exfat_next_cluster(ef, parent, *cluster);
+ if (CLUSTER_INVALID(*cluster))
+ {
+ exfat_error("invalid cluster %#x while getting next entry",
+ *cluster);
+ return false;
+ }
+ }
+ return true;
}
int exfat_flush_node(struct exfat* ef, struct exfat_node* node)
{
cluster_t cluster;
- off64_t offset;
- off64_t meta1_offset, meta2_offset;
+ off_t offset;
+ off_t meta1_offset, meta2_offset;
struct exfat_entry_meta1 meta1;
struct exfat_entry_meta2 meta2;
@@ -573,7 +620,8 @@
cluster = node->entry_cluster;
offset = node->entry_offset;
meta1_offset = co2o(ef, cluster, offset);
- next_entry(ef, node->parent, &cluster, &offset);
+ if (!next_entry(ef, node->parent, &cluster, &offset))
+ return -EIO;
meta2_offset = co2o(ef, cluster, offset);
if (exfat_pread(ef->dev, &meta1, sizeof(meta1), meta1_offset) < 0)
@@ -594,7 +642,7 @@
}
if (meta2.type != EXFAT_ENTRY_FILE_INFO)
exfat_bug("invalid type of meta2: 0x%hhx", meta2.type);
- meta2.size = meta2.real_size = cpu_to_le64(node->size);
+ meta2.size = meta2.valid_size = cpu_to_le64(node->size);
meta2.start_cluster = cpu_to_le32(node->start_cluster);
meta2.flags = EXFAT_FLAG_ALWAYS1;
/* empty files must not be marked as contiguous */
@@ -616,13 +664,13 @@
}
node->flags &= ~EXFAT_ATTRIB_DIRTY;
- return 0;
+ return exfat_flush(ef);
}
static bool erase_entry(struct exfat* ef, struct exfat_node* node)
{
cluster_t cluster = node->entry_cluster;
- off64_t offset = node->entry_offset;
+ off_t offset = node->entry_offset;
int name_entries = DIV_ROUND_UP(utf16_length(node->name), EXFAT_ENAME_MAX);
uint8_t entry_type;
@@ -633,7 +681,8 @@
return false;
}
- next_entry(ef, node->parent, &cluster, &offset);
+ if (!next_entry(ef, node->parent, &cluster, &offset))
+ return false;
entry_type = EXFAT_ENTRY_FILE_INFO & ~EXFAT_ENTRY_VALID;
if (exfat_pwrite(ef->dev, &entry_type, 1, co2o(ef, cluster, offset)) < 0)
{
@@ -643,7 +692,8 @@
while (name_entries--)
{
- next_entry(ef, node->parent, &cluster, &offset);
+ if (!next_entry(ef, node->parent, &cluster, &offset))
+ return false;
entry_type = EXFAT_ENTRY_FILE_NAME & ~EXFAT_ENTRY_VALID;
if (exfat_pwrite(ef->dev, &entry_type, 1,
co2o(ef, cluster, offset)) < 0)
@@ -656,13 +706,12 @@
}
static int shrink_directory(struct exfat* ef, struct exfat_node* dir,
- off64_t deleted_offset)
+ off_t deleted_offset)
{
const struct exfat_node* node;
const struct exfat_node* last_node;
uint64_t entries = 0;
uint64_t new_size;
- int rc;
if (!(dir->flags & EXFAT_ATTRIB_DIR))
exfat_bug("attempted to shrink a file");
@@ -698,16 +747,13 @@
new_size = CLUSTER_SIZE(*ef->sb);
if (new_size == dir->size)
return 0;
- rc = exfat_truncate(ef, dir, new_size, true);
- if (rc != 0)
- return rc;
- return 0;
+ return exfat_truncate(ef, dir, new_size, true);
}
static int delete(struct exfat* ef, struct exfat_node* node)
{
struct exfat_node* parent = node->parent;
- off64_t deleted_offset = node->entry_offset;
+ off_t deleted_offset = node->entry_offset;
int rc;
exfat_get_node(parent);
@@ -719,9 +765,15 @@
exfat_update_mtime(parent);
tree_detach(node);
rc = shrink_directory(ef, parent, deleted_offset);
- exfat_put_node(ef, parent);
- /* file clusters will be freed when node reference counter becomes 0 */
node->flags |= EXFAT_ATTRIB_UNLINKED;
+ if (rc != 0)
+ {
+ exfat_flush_node(ef, parent);
+ exfat_put_node(ef, parent);
+ return rc;
+ }
+ rc = exfat_flush_node(ef, parent);
+ exfat_put_node(ef, parent);
return rc;
}
@@ -734,10 +786,14 @@
int exfat_rmdir(struct exfat* ef, struct exfat_node* node)
{
+ int rc;
+
if (!(node->flags & EXFAT_ATTRIB_DIR))
return -ENOTDIR;
/* check that directory is empty */
- exfat_cache_directory(ef, node);
+ rc = exfat_cache_directory(ef, node);
+ if (rc != 0)
+ return rc;
if (node->child)
return -ENOTEMPTY;
return delete(ef, node);
@@ -752,7 +808,7 @@
}
static int find_slot(struct exfat* ef, struct exfat_node* dir,
- cluster_t* cluster, off64_t* offset, int subentries)
+ cluster_t* cluster, off_t* offset, int subentries)
{
struct iterator it;
int rc;
@@ -786,7 +842,7 @@
return rc;
}
}
- if (fetch_next_entry(ef, dir, &it) != 0)
+ if (!fetch_next_entry(ef, dir, &it))
{
closedir(&it);
return -EIO;
@@ -797,7 +853,7 @@
}
static int write_entry(struct exfat* ef, struct exfat_node* dir,
- const le16_t* name, cluster_t cluster, off64_t offset, uint16_t attrib)
+ const le16_t* name, cluster_t cluster, off_t offset, uint16_t attrib)
{
struct exfat_node* node;
struct exfat_entry_meta1 meta1;
@@ -838,7 +894,8 @@
exfat_error("failed to write meta1 entry");
return -EIO;
}
- next_entry(ef, dir, &cluster, &offset);
+ if (!next_entry(ef, dir, &cluster, &offset))
+ return -EIO;
if (exfat_pwrite(ef->dev, &meta2, sizeof(meta2),
co2o(ef, cluster, offset)) < 0)
{
@@ -851,7 +908,8 @@
memcpy(name_entry.name, node->name + i * EXFAT_ENAME_MAX,
MIN(EXFAT_ENAME_MAX, EXFAT_NAME_MAX - i * EXFAT_ENAME_MAX) *
sizeof(le16_t));
- next_entry(ef, dir, &cluster, &offset);
+ if (!next_entry(ef, dir, &cluster, &offset))
+ return -EIO;
if (exfat_pwrite(ef->dev, &name_entry, sizeof(name_entry),
co2o(ef, cluster, offset)) < 0)
{
@@ -873,7 +931,7 @@
struct exfat_node* dir;
struct exfat_node* existing;
cluster_t cluster = EXFAT_CLUSTER_BAD;
- off64_t offset = -1;
+ off_t offset = -1;
le16_t name[EXFAT_NAME_MAX + 1];
int rc;
@@ -895,6 +953,12 @@
return rc;
}
rc = write_entry(ef, dir, name, cluster, offset, attrib);
+ if (rc != 0)
+ {
+ exfat_put_node(ef, dir);
+ return rc;
+ }
+ rc = exfat_flush_node(ef, dir);
exfat_put_node(ef, dir);
return rc;
}
@@ -909,7 +973,7 @@
int rc;
struct exfat_node* node;
- rc = create(ef, path, EXFAT_ATTRIB_ARCH | EXFAT_ATTRIB_DIR);
+ rc = create(ef, path, EXFAT_ATTRIB_DIR);
if (rc != 0)
return rc;
rc = exfat_lookup(ef, &node, path);
@@ -923,18 +987,25 @@
exfat_put_node(ef, node);
return rc;
}
+ rc = exfat_flush_node(ef, node);
+ if (rc != 0)
+ {
+ delete(ef, node);
+ exfat_put_node(ef, node);
+ return rc;
+ }
exfat_put_node(ef, node);
return 0;
}
static int rename_entry(struct exfat* ef, struct exfat_node* dir,
struct exfat_node* node, const le16_t* name, cluster_t new_cluster,
- off64_t new_offset)
+ off_t new_offset)
{
struct exfat_entry_meta1 meta1;
struct exfat_entry_meta2 meta2;
cluster_t old_cluster = node->entry_cluster;
- off64_t old_offset = node->entry_offset;
+ off_t old_offset = node->entry_offset;
const size_t name_length = utf16_length(name);
const int name_entries = DIV_ROUND_UP(name_length, EXFAT_ENAME_MAX);
int i;
@@ -945,7 +1016,8 @@
exfat_error("failed to read meta1 entry on rename");
return -EIO;
}
- next_entry(ef, node->parent, &old_cluster, &old_offset);
+ if (!next_entry(ef, node->parent, &old_cluster, &old_offset))
+ return -EIO;
if (exfat_pread(ef->dev, &meta2, sizeof(meta2),
co2o(ef, old_cluster, old_offset)) < 0)
{
@@ -969,7 +1041,8 @@
exfat_error("failed to write meta1 entry on rename");
return -EIO;
}
- next_entry(ef, dir, &new_cluster, &new_offset);
+ if (!next_entry(ef, dir, &new_cluster, &new_offset))
+ return -EIO;
if (exfat_pwrite(ef->dev, &meta2, sizeof(meta2),
co2o(ef, new_cluster, new_offset)) < 0)
{
@@ -982,7 +1055,8 @@
struct exfat_entry_name name_entry = {EXFAT_ENTRY_FILE_NAME, 0};
memcpy(name_entry.name, name + i * EXFAT_ENAME_MAX,
EXFAT_ENAME_MAX * sizeof(le16_t));
- next_entry(ef, dir, &new_cluster, &new_offset);
+ if (!next_entry(ef, dir, &new_cluster, &new_offset))
+ return -EIO;
if (exfat_pwrite(ef->dev, &name_entry, sizeof(name_entry),
co2o(ef, new_cluster, new_offset)) < 0)
{
@@ -1003,7 +1077,7 @@
struct exfat_node* existing;
struct exfat_node* dir;
cluster_t cluster = EXFAT_CLUSTER_BAD;
- off64_t offset = -1;
+ off_t offset = -1;
le16_t name[EXFAT_NAME_MAX + 1];
int rc;
@@ -1076,7 +1150,7 @@
rc = rename_entry(ef, dir, node, name, cluster, offset);
exfat_put_node(ef, dir);
exfat_put_node(ef, node);
- return 0;
+ return rc;
}
void exfat_utimes(struct exfat_node* node, const struct timespec tv[2])
@@ -1103,7 +1177,7 @@
return ef->label;
}
-static int find_label(struct exfat* ef, cluster_t* cluster, off64_t* offset)
+static int find_label(struct exfat* ef, cluster_t* cluster, off_t* offset)
{
struct iterator it;
int rc;
@@ -1128,7 +1202,7 @@
return 0;
}
- if (fetch_next_entry(ef, ef->root, &it) != 0)
+ if (!fetch_next_entry(ef, ef->root, &it))
{
closedir(&it);
return -EIO;
@@ -1141,7 +1215,7 @@
le16_t label_utf16[EXFAT_ENAME_MAX + 1];
int rc;
cluster_t cluster;
- off64_t offset;
+ off_t offset;
struct exfat_entry_label entry;
memset(label_utf16, 0, sizeof(label_utf16));
diff --git a/exfat/libexfat/platform.h b/exfat/libexfat/platform.h
index 320f757..d2ad6d1 100644
--- a/exfat/libexfat/platform.h
+++ b/exfat/libexfat/platform.h
@@ -3,11 +3,12 @@
OS-specific code (libc-specific in fact). Note that systems with the
same kernel can use different libc implementations.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Free exFAT implementation.
+ Copyright (C) 2010-2015 Andrew Nayenko
- This program is free software: you can redistribute it and/or modify
+ This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
+ the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
@@ -15,62 +16,45 @@
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef PLATFORM_H_INCLUDED
#define PLATFORM_H_INCLUDED
-#if defined(__GLIBC__)
+#if defined(__linux__) || defined(__GLIBC__) || defined(__GNU__)
#include <endian.h>
#include <byteswap.h>
+#define exfat_bswap16(x) bswap_16(x)
+#define exfat_bswap32(x) bswap_32(x)
+#define exfat_bswap64(x) bswap_64(x)
+#define EXFAT_BYTE_ORDER __BYTE_ORDER
+#define EXFAT_LITTLE_ENDIAN __LITTLE_ENDIAN
+#define EXFAT_BIG_ENDIAN __BIG_ENDIAN
#elif defined(__APPLE__)
#include <machine/endian.h>
#include <libkern/OSByteOrder.h>
-#define bswap_16(x) OSSwapInt16(x)
-#define bswap_32(x) OSSwapInt32(x)
-#define bswap_64(x) OSSwapInt64(x)
-#define __BYTE_ORDER BYTE_ORDER
-#define __LITTLE_ENDIAN LITTLE_ENDIAN
-#define __BIG_ENDIAN BIG_ENDIAN
+#define exfat_bswap16(x) OSSwapInt16(x)
+#define exfat_bswap32(x) OSSwapInt32(x)
+#define exfat_bswap64(x) OSSwapInt64(x)
+#define EXFAT_BYTE_ORDER BYTE_ORDER
+#define EXFAT_LITTLE_ENDIAN LITTLE_ENDIAN
+#define EXFAT_BIG_ENDIAN BIG_ENDIAN
-#elif defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__)
+#elif defined(__ANDROID__) || defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/endian.h>
-#define bswap_16(x) bswap16(x)
-#define bswap_32(x) bswap32(x)
-#define bswap_64(x) bswap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__OpenBSD__)
-
-#include <machine/endian.h>
-#define bswap_16(x) swap16(x)
-#define bswap_32(x) swap32(x)
-#define bswap_64(x) swap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__sun)
-
-#include <sys/byteorder.h>
-#define bswap_16(x) BSWAP_16(x)
-#define bswap_32(x) BSWAP_32(x)
-#define bswap_64(x) BSWAP_64(x)
-#define __LITTLE_ENDIAN 1234
-#define __BIG_ENDIAN 4321
-#ifdef _LITTLE_ENDIAN
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#else
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
+#define exfat_bswap16(x) bswap16(x)
+#define exfat_bswap32(x) bswap32(x)
+#define exfat_bswap64(x) bswap64(x)
+#define EXFAT_BYTE_ORDER _BYTE_ORDER
+#define EXFAT_LITTLE_ENDIAN _LITTLE_ENDIAN
+#define EXFAT_BIG_ENDIAN _BIG_ENDIAN
#else
#error Unknown platform
diff --git a/exfat/libexfat/time.c b/exfat/libexfat/time.c
index 43c5fa4..45c4aff 100644
--- a/exfat/libexfat/time.c
+++ b/exfat/libexfat/time.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
diff --git a/exfat/libexfat/utf.c b/exfat/libexfat/utf.c
index 3b7e26b..6f14882 100644
--- a/exfat/libexfat/utf.c
+++ b/exfat/libexfat/utf.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
diff --git a/exfat/libexfat/utils.c b/exfat/libexfat/utils.c
index ef87692..388f360 100644
--- a/exfat/libexfat/utils.c
+++ b/exfat/libexfat/utils.c
@@ -3,7 +3,7 @@
exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
+ Copyright (C) 2010-2015 Andrew Nayenko
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -161,8 +161,8 @@
uint32_t free_clusters)
{
struct exfat_human_bytes hb;
- off64_t total_space = le64_to_cpu(sb->sector_count) * SECTOR_SIZE(*sb);
- off64_t avail_space = (off64_t) free_clusters * CLUSTER_SIZE(*sb);
+ off_t total_space = le64_to_cpu(sb->sector_count) * SECTOR_SIZE(*sb);
+ off_t avail_space = (off_t) free_clusters * CLUSTER_SIZE(*sb);
printf("File system version %hhu.%hhu\n",
sb->version.major, sb->version.minor);
diff --git a/exfat/libexfat/version.h b/exfat/libexfat/version.h
deleted file mode 100644
index 062fa04..0000000
--- a/exfat/libexfat/version.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- version.h (12.06.10)
- Version constants.
-
- Free exFAT implementation.
- Copyright (C) 2010-2013 Andrew Nayenko
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef VERSION_H_INCLUDED
-#define VERSION_H_INCLUDED
-
-#define EXFAT_VERSION_MAJOR 1
-#define EXFAT_VERSION_MINOR 0
-#define EXFAT_VERSION_PATCH 0
-
-#endif /* ifndef VERSION_H_INCLUDED */