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Diffstat (limited to 'lib/sqfshelper')
-rw-r--r--lib/sqfshelper/data_reader.c12
-rw-r--r--lib/sqfshelper/data_writer.c39
-rw-r--r--lib/sqfshelper/deserialize_fstree.c10
-rw-r--r--lib/sqfshelper/serialize_fstree.c6
-rw-r--r--lib/sqfshelper/sqfs_reader.c18
-rw-r--r--lib/sqfshelper/write_export_table.c4
-rw-r--r--lib/sqfshelper/write_xattr.c13
7 files changed, 47 insertions, 55 deletions
diff --git a/lib/sqfshelper/data_reader.c b/lib/sqfshelper/data_reader.c
index fc92e28..d1a9cce 100644
--- a/lib/sqfshelper/data_reader.c
+++ b/lib/sqfshelper/data_reader.c
@@ -25,7 +25,7 @@ struct data_reader_t {
sqfs_compressor_t *cmp;
size_t block_size;
- int sqfsfd;
+ sqfs_file_t *file;
void *block;
void *scratch;
@@ -44,8 +44,10 @@ static ssize_t read_block(data_reader_t *data, off_t offset, uint32_t size,
if (size > data->block_size)
goto fail_bs;
- if (read_data_at("reading block", offset, data->sqfsfd, ptr, size))
+ if (data->file->read_at(data->file, offset, ptr, size)) {
+ fputs("error reading data block from input file\n", stderr);
return -1;
+ }
if (compressed) {
ret = data->cmp->do_block(data->cmp, data->scratch, size,
@@ -104,7 +106,7 @@ static int precache_fragment_block(data_reader_t *data, size_t idx)
return 0;
}
-data_reader_t *data_reader_create(int fd, sqfs_super_t *super,
+data_reader_t *data_reader_create(sqfs_file_t *file, sqfs_super_t *super,
sqfs_compressor_t *cmp)
{
data_reader_t *data = alloc_flex(sizeof(*data), super->block_size, 3);
@@ -123,7 +125,7 @@ data_reader_t *data_reader_create(int fd, sqfs_super_t *super,
data->scratch = (char *)data->block + super->block_size;
data->frag_block = (char *)data->scratch + super->block_size;
data->current_block = -1;
- data->sqfsfd = fd;
+ data->file = file;
data->block_size = super->block_size;
data->cmp = cmp;
@@ -144,7 +146,7 @@ data_reader_t *data_reader_create(int fd, sqfs_super_t *super,
return NULL;
}
- ret = sqfs_read_table(fd, cmp, size, super->fragment_table_start,
+ ret = sqfs_read_table(file, cmp, size, super->fragment_table_start,
super->directory_table_start,
super->fragment_table_start, &raw_frag);
diff --git a/lib/sqfshelper/data_writer.c b/lib/sqfshelper/data_writer.c
index 62e3e2a..b94bdb6 100644
--- a/lib/sqfshelper/data_writer.c
+++ b/lib/sqfshelper/data_writer.c
@@ -32,7 +32,7 @@ struct data_writer_t {
sqfs_compressor_t *cmp;
file_info_t *list;
sqfs_super_t *super;
- int outfd;
+ sqfs_file_t *file;
};
enum {
@@ -45,32 +45,19 @@ enum {
static int save_position(data_writer_t *data)
{
data->bytes_written = data->super->bytes_used;
- data->start = lseek(data->outfd, 0, SEEK_CUR);
-
- if (data->start == (off_t)-1) {
- perror("querying current position on squashfs image");
- return -1;
- }
-
+ data->start = data->file->get_size(data->file);
return 0;
}
static int restore_position(data_writer_t *data)
{
- if (lseek(data->outfd, data->start, SEEK_SET) == (off_t)-1)
- goto fail_seek;
-
- if (ftruncate(data->outfd, data->start))
- goto fail_truncate;
+ if (data->file->truncate(data->file, data->start)) {
+ perror("truncating squashfs image after file deduplication");
+ return -1;
+ }
data->super->bytes_used = data->bytes_written;
return 0;
-fail_seek:
- perror("seeking on squashfs image after file deduplication");
- return -1;
-fail_truncate:
- perror("truncating squashfs image after file deduplication");
- return -1;
}
static int allign_file(data_writer_t *data)
@@ -80,7 +67,7 @@ static int allign_file(data_writer_t *data)
if (diff == 0)
return 0;
- if (padd_file(data->outfd, data->super->bytes_used, data->devblksz))
+ if (padd_sqfs(data->file, data->super->bytes_used, data->devblksz))
return -1;
data->super->bytes_used += data->devblksz - diff;
@@ -122,8 +109,10 @@ static int block_callback(void *user, sqfs_block_t *blk)
fi->blocks[blk->index].size = htole32(out);
}
- if (write_data("writing data block", data->outfd,
- blk->data, blk->size)) {
+ offset = data->file->get_size(data->file);
+
+ if (data->file->write_at(data->file, offset,
+ blk->data, blk->size)) {
return -1;
}
@@ -489,7 +478,7 @@ int write_data_from_fd_condensed(data_writer_t *data, file_info_t *fi,
}
data_writer_t *data_writer_create(sqfs_super_t *super, sqfs_compressor_t *cmp,
- int outfd, size_t devblksize,
+ sqfs_file_t *file, size_t devblksize,
unsigned int num_jobs)
{
data_writer_t *data = calloc(1, sizeof(*data));
@@ -504,7 +493,7 @@ data_writer_t *data_writer_create(sqfs_super_t *super, sqfs_compressor_t *cmp,
block_callback);
data->cmp = cmp;
data->super = super;
- data->outfd = outfd;
+ data->file = file;
data->devblksz = devblksize;
return data;
}
@@ -529,7 +518,7 @@ int data_writer_write_fragment_table(data_writer_t *data)
}
size = sizeof(data->fragments[0]) * data->num_fragments;
- ret = sqfs_write_table(data->outfd, data->super, data->cmp,
+ ret = sqfs_write_table(data->file, data->super, data->cmp,
data->fragments, size, &start);
if (ret)
return -1;
diff --git a/lib/sqfshelper/deserialize_fstree.c b/lib/sqfshelper/deserialize_fstree.c
index 1953f9b..37861e6 100644
--- a/lib/sqfshelper/deserialize_fstree.c
+++ b/lib/sqfshelper/deserialize_fstree.c
@@ -203,7 +203,7 @@ static int fill_dir(sqfs_meta_reader_t *ir, sqfs_meta_reader_t *dr,
}
int deserialize_fstree(fstree_t *out, sqfs_super_t *super,
- sqfs_compressor_t *cmp, int fd, int flags)
+ sqfs_compressor_t *cmp, sqfs_file_t *file, int flags)
{
uint64_t block_start, limit;
sqfs_meta_reader_t *ir, *dr;
@@ -213,7 +213,7 @@ int deserialize_fstree(fstree_t *out, sqfs_super_t *super,
int status = -1;
size_t offset;
- ir = sqfs_meta_reader_create(fd, cmp, super->inode_table_start,
+ ir = sqfs_meta_reader_create(file, cmp, super->inode_table_start,
super->directory_table_start);
if (ir == NULL)
return -1;
@@ -224,7 +224,7 @@ int deserialize_fstree(fstree_t *out, sqfs_super_t *super,
if (super->fragment_table_start < limit)
limit = super->fragment_table_start;
- dr = sqfs_meta_reader_create(fd, cmp, super->directory_table_start,
+ dr = sqfs_meta_reader_create(file, cmp, super->directory_table_start,
limit);
if (dr == NULL)
goto out_ir;
@@ -233,10 +233,10 @@ int deserialize_fstree(fstree_t *out, sqfs_super_t *super,
if (idtbl == NULL)
goto out_dr;
- if (sqfs_id_table_read(idtbl, fd, super, cmp))
+ if (sqfs_id_table_read(idtbl, file, super, cmp))
goto out_id;
- xr = sqfs_xattr_reader_create(fd, super, cmp);
+ xr = sqfs_xattr_reader_create(file, super, cmp);
if (xr == NULL)
goto out_id;
diff --git a/lib/sqfshelper/serialize_fstree.c b/lib/sqfshelper/serialize_fstree.c
index dfadedd..ea3d479 100644
--- a/lib/sqfshelper/serialize_fstree.c
+++ b/lib/sqfshelper/serialize_fstree.c
@@ -41,7 +41,7 @@ static int write_dir_entries(sqfs_dir_writer_t *dirw, tree_node_t *node)
return 0;
}
-int sqfs_serialize_fstree(int outfd, sqfs_super_t *super, fstree_t *fs,
+int sqfs_serialize_fstree(sqfs_file_t *file, sqfs_super_t *super, fstree_t *fs,
sqfs_compressor_t *cmp, sqfs_id_table_t *idtbl)
{
sqfs_inode_generic_t *inode;
@@ -52,11 +52,11 @@ int sqfs_serialize_fstree(int outfd, sqfs_super_t *super, fstree_t *fs,
int ret = -1;
size_t i;
- im = sqfs_meta_writer_create(outfd, cmp, false);
+ im = sqfs_meta_writer_create(file, cmp, false);
if (im == NULL)
return -1;
- dm = sqfs_meta_writer_create(outfd, cmp, true);
+ dm = sqfs_meta_writer_create(file, cmp, true);
if (dm == NULL)
goto out_im;
diff --git a/lib/sqfshelper/sqfs_reader.c b/lib/sqfshelper/sqfs_reader.c
index 598b3c4..e9c9c33 100644
--- a/lib/sqfshelper/sqfs_reader.c
+++ b/lib/sqfshelper/sqfs_reader.c
@@ -18,13 +18,11 @@ int sqfs_reader_open(sqfs_reader_t *rd, const char *filename, int rdtree_flags)
memset(rd, 0, sizeof(*rd));
- rd->sqfsfd = open(filename, O_RDONLY);
- if (rd->sqfsfd < 0) {
- perror(filename);
+ rd->file = sqfs_open_file(filename, SQFS_FILE_OPEN_READ_ONLY);
+ if (rd->file == NULL)
return -1;
- }
- if (sqfs_super_read(&rd->super, rd->sqfsfd))
+ if (sqfs_super_read(&rd->super, rd->file))
goto fail_fd;
if (!sqfs_compressor_exists(rd->super.compression_id)) {
@@ -41,21 +39,21 @@ int sqfs_reader_open(sqfs_reader_t *rd, const char *filename, int rdtree_flags)
goto fail_fd;
if (rd->super.flags & SQFS_FLAG_COMPRESSOR_OPTIONS) {
- if (rd->cmp->read_options(rd->cmp, rd->sqfsfd))
+ if (rd->cmp->read_options(rd->cmp, rd->file))
goto fail_cmp;
}
if (rd->super.flags & SQFS_FLAG_NO_XATTRS)
rdtree_flags &= ~RDTREE_READ_XATTR;
- if (deserialize_fstree(&rd->fs, &rd->super, rd->cmp, rd->sqfsfd,
+ if (deserialize_fstree(&rd->fs, &rd->super, rd->cmp, rd->file,
rdtree_flags)) {
goto fail_cmp;
}
fstree_gen_file_list(&rd->fs);
- rd->data = data_reader_create(rd->sqfsfd, &rd->super, rd->cmp);
+ rd->data = data_reader_create(rd->file, &rd->super, rd->cmp);
if (rd->data == NULL)
goto fail_fs;
@@ -65,7 +63,7 @@ fail_fs:
fail_cmp:
rd->cmp->destroy(rd->cmp);
fail_fd:
- close(rd->sqfsfd);
+ rd->file->destroy(rd->file);
memset(rd, 0, sizeof(*rd));
return -1;
}
@@ -75,6 +73,6 @@ void sqfs_reader_close(sqfs_reader_t *rd)
data_reader_destroy(rd->data);
fstree_cleanup(&rd->fs);
rd->cmp->destroy(rd->cmp);
- close(rd->sqfsfd);
+ rd->file->destroy(rd->file);
memset(rd, 0, sizeof(*rd));
}
diff --git a/lib/sqfshelper/write_export_table.c b/lib/sqfshelper/write_export_table.c
index b0ad4ce..f4c6658 100644
--- a/lib/sqfshelper/write_export_table.c
+++ b/lib/sqfshelper/write_export_table.c
@@ -12,7 +12,7 @@
#include <stdlib.h>
#include <stdio.h>
-int write_export_table(int outfd, fstree_t *fs, sqfs_super_t *super,
+int write_export_table(sqfs_file_t *file, fstree_t *fs, sqfs_super_t *super,
sqfs_compressor_t *cmp)
{
uint64_t *table, start;
@@ -38,7 +38,7 @@ int write_export_table(int outfd, fstree_t *fs, sqfs_super_t *super,
}
size = sizeof(uint64_t) * (fs->inode_tbl_size - 1);
- ret = sqfs_write_table(outfd, super, cmp, table, size, &start);
+ ret = sqfs_write_table(file, super, cmp, table, size, &start);
super->export_table_start = start;
super->flags |= SQFS_FLAG_EXPORTABLE;
diff --git a/lib/sqfshelper/write_xattr.c b/lib/sqfshelper/write_xattr.c
index 6f71eeb..c4fb86e 100644
--- a/lib/sqfshelper/write_xattr.c
+++ b/lib/sqfshelper/write_xattr.c
@@ -167,7 +167,7 @@ static uint64_t *create_ool_locations_table(fstree_t *fs)
return table;
}
-int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
+int write_xattr(sqfs_file_t *file, fstree_t *fs, sqfs_super_t *super,
sqfs_compressor_t *cmp)
{
uint64_t kv_start, id_start, block, *tbl, *ool_locations;
@@ -185,7 +185,7 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
if (ool_locations == NULL)
return -1;
- mw = sqfs_meta_writer_create(outfd, cmp, false);
+ mw = sqfs_meta_writer_create(file, cmp, false);
if (mw == NULL)
goto fail_ool;
@@ -254,11 +254,14 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
idtbl.xattr_ids = htole32(count);
idtbl.unused = 0;
- if (write_data("writing xattr ID table", outfd, &idtbl, sizeof(idtbl)))
+ if (file->write_at(file, file->get_size(file), &idtbl, sizeof(idtbl))) {
+ perror("writing xattr ID table");
goto fail_tbl;
+ }
- if (write_data("writing xattr ID table",
- outfd, tbl, sizeof(tbl[0]) * blocks)) {
+ if (file->write_at(file, file->get_size(file),
+ tbl, sizeof(tbl[0]) * blocks)) {
+ perror("writing xattr ID table");
goto fail_tbl;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 07:24:50 +0000