aboutsummaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
Diffstat (limited to 'lib')
-rw-r--r--lib/sqfs/io.c66
-rw-r--r--lib/sqfshelper/data_writer.c21
-rw-r--r--lib/sqfshelper/io_stdin.c67
-rw-r--r--lib/tar/cleanup.c4
-rw-r--r--lib/tar/internal.h6
-rw-r--r--lib/tar/read_header.c2
-rw-r--r--lib/tar/read_sparse_map.c4
-rw-r--r--lib/tar/read_sparse_map_old.c4
8 files changed, 79 insertions, 95 deletions
diff --git a/lib/sqfs/io.c b/lib/sqfs/io.c
index f4ffda2..0021a30 100644
--- a/lib/sqfs/io.c
+++ b/lib/sqfs/io.c
@@ -37,69 +37,3 @@ int sqfs_file_create_block(sqfs_file_t *file, uint64_t offset,
*out = blk;
return 0;
}
-
-int sqfs_file_create_block_dense(sqfs_file_t *file, uint64_t offset,
- size_t size, sqfs_inode_generic_t *inode,
- uint32_t flags, const sqfs_sparse_map_t *map,
- sqfs_block_t **out)
-{
- sqfs_block_t *blk = alloc_flex(sizeof(*blk), 1, size);
- size_t dst_start, diff, count;
- const sqfs_sparse_map_t *it;
- uint64_t poffset, src_start;
- int err;
-
- if (blk == NULL)
- return SQFS_ERROR_ALLOC;
-
- poffset = 0;
-
- for (it = map; it != NULL; it = it->next) {
- if (it->offset + it->count <= offset) {
- poffset += it->count;
- continue;
- }
-
- if (it->offset >= offset + size) {
- poffset += it->count;
- continue;
- }
-
- count = size;
-
- if (offset + count >= it->offset + it->count)
- count = it->offset + it->count - offset;
-
- if (it->offset < offset) {
- diff = offset - it->offset;
-
- src_start = poffset + diff;
- dst_start = 0;
- count -= diff;
- } else if (it->offset > offset) {
- diff = it->offset - offset;
-
- src_start = poffset;
- dst_start = diff;
- } else {
- src_start = poffset;
- dst_start = 0;
- }
-
- err = file->read_at(file, src_start,
- blk->data + dst_start, count);
- if (err) {
- free(blk);
- return err;
- }
-
- poffset += it->count;
- }
-
- blk->inode = inode;
- blk->size = size;
- blk->flags = flags;
-
- *out = blk;
- return 0;
-}
diff --git a/lib/sqfshelper/data_writer.c b/lib/sqfshelper/data_writer.c
index 96cd9ee..a365e6d 100644
--- a/lib/sqfshelper/data_writer.c
+++ b/lib/sqfshelper/data_writer.c
@@ -98,9 +98,8 @@ static int add_sentinel_block(data_writer_t *data, sqfs_inode_generic_t *inode,
return sqfs_data_writer_enqueue(data->proc, blk);
}
-int write_data_from_file_condensed(data_writer_t *data, sqfs_file_t *file,
- sqfs_inode_generic_t *inode,
- const sqfs_sparse_map_t *map, int flags)
+int write_data_from_file(data_writer_t *data, sqfs_inode_generic_t *inode,
+ sqfs_file_t *file, int flags)
{
uint32_t blk_flags = SQFS_BLK_FIRST_BLOCK;
uint64_t filesz, offset;
@@ -123,14 +122,8 @@ int write_data_from_file_condensed(data_writer_t *data, sqfs_file_t *file,
diff = filesz - offset;
}
- if (map == NULL) {
- ret = sqfs_file_create_block(file, offset, diff, inode,
- blk_flags, &blk);
- } else {
- ret = sqfs_file_create_block_dense(file, offset, diff,
- inode, blk_flags,
- map, &blk);
- }
+ ret = sqfs_file_create_block(file, offset, diff, inode,
+ blk_flags, &blk);
if (ret)
return -1;
@@ -189,12 +182,6 @@ int write_data_from_file_condensed(data_writer_t *data, sqfs_file_t *file,
return 0;
}
-int write_data_from_file(data_writer_t *data, sqfs_inode_generic_t *inode,
- sqfs_file_t *file, int flags)
-{
- return write_data_from_file_condensed(data, file, inode, NULL, flags);
-}
-
data_writer_t *data_writer_create(sqfs_super_t *super, sqfs_compressor_t *cmp,
sqfs_file_t *file, size_t devblksize,
unsigned int num_jobs, size_t max_backlog)
diff --git a/lib/sqfshelper/io_stdin.c b/lib/sqfshelper/io_stdin.c
index 6cb45d4..8568f5e 100644
--- a/lib/sqfshelper/io_stdin.c
+++ b/lib/sqfshelper/io_stdin.c
@@ -11,12 +11,14 @@
#include <stdlib.h>
#include <unistd.h>
+#include <string.h>
#include <errno.h>
typedef struct {
sqfs_file_t base;
+ const sparse_map_t *map;
uint64_t offset;
uint64_t size;
} sqfs_file_stdin_t;
@@ -78,6 +80,60 @@ static int stdin_read_at(sqfs_file_t *base, uint64_t offset,
return 0;
}
+static int stdin_read_condensed(sqfs_file_t *base, uint64_t offset,
+ void *buffer, size_t size)
+{
+ sqfs_file_stdin_t *file = (sqfs_file_stdin_t *)base;
+ uint64_t poffset = 0, src_start;
+ size_t dst_start, diff, count;
+ const sparse_map_t *it;
+ int err;
+
+ memset(buffer, 0, size);
+
+ for (it = file->map; it != NULL; it = it->next) {
+ if (it->offset + it->count <= offset) {
+ poffset += it->count;
+ continue;
+ }
+
+ if (it->offset >= offset + size) {
+ poffset += it->count;
+ continue;
+ }
+
+ count = size;
+
+ if (offset + count >= it->offset + it->count)
+ count = it->offset + it->count - offset;
+
+ if (it->offset < offset) {
+ diff = offset - it->offset;
+
+ src_start = poffset + diff;
+ dst_start = 0;
+ count -= diff;
+ } else if (it->offset > offset) {
+ diff = it->offset - offset;
+
+ src_start = poffset;
+ dst_start = diff;
+ } else {
+ src_start = poffset;
+ dst_start = 0;
+ }
+
+ err = stdin_read_at(base, src_start,
+ (char *)buffer + dst_start, count);
+ if (err)
+ return err;
+
+ poffset += it->count;
+ }
+
+ return 0;
+}
+
static int stdin_write_at(sqfs_file_t *base, uint64_t offset,
const void *buffer, size_t size)
{
@@ -96,7 +152,7 @@ static int stdin_truncate(sqfs_file_t *base, uint64_t size)
return SQFS_ERROR_IO;
}
-sqfs_file_t *sqfs_get_stdin_file(uint64_t size)
+sqfs_file_t *sqfs_get_stdin_file(const sparse_map_t *map, uint64_t size)
{
sqfs_file_stdin_t *file = calloc(1, sizeof(*file));
sqfs_file_t *base = (sqfs_file_t *)file;
@@ -105,10 +161,17 @@ sqfs_file_t *sqfs_get_stdin_file(uint64_t size)
return NULL;
file->size = size;
+ file->map = map;
+
base->destroy = stdin_destroy;
- base->read_at = stdin_read_at;
base->write_at = stdin_write_at;
base->get_size = stdin_get_size;
base->truncate = stdin_truncate;
+
+ if (map == NULL) {
+ base->read_at = stdin_read_at;
+ } else {
+ base->read_at = stdin_read_condensed;
+ }
return base;
}
diff --git a/lib/tar/cleanup.c b/lib/tar/cleanup.c
index 3c1d0e9..2f814bf 100644
--- a/lib/tar/cleanup.c
+++ b/lib/tar/cleanup.c
@@ -8,9 +8,9 @@
#include "internal.h"
-void free_sparse_list(sqfs_sparse_map_t *sparse)
+void free_sparse_list(sparse_map_t *sparse)
{
- sqfs_sparse_map_t *old;
+ sparse_map_t *old;
while (sparse != NULL) {
old = sparse;
diff --git a/lib/tar/internal.h b/lib/tar/internal.h
index bc9a3a8..d95ef52 100644
--- a/lib/tar/internal.h
+++ b/lib/tar/internal.h
@@ -55,11 +55,11 @@ void update_checksum(tar_header_t *hdr);
bool is_checksum_valid(const tar_header_t *hdr);
-sqfs_sparse_map_t *read_sparse_map(const char *line);
+sparse_map_t *read_sparse_map(const char *line);
-sqfs_sparse_map_t *read_gnu_old_sparse(int fd, tar_header_t *hdr);
+sparse_map_t *read_gnu_old_sparse(int fd, tar_header_t *hdr);
-void free_sparse_list(sqfs_sparse_map_t *sparse);
+void free_sparse_list(sparse_map_t *sparse);
void free_xattr_list(tar_xattr_t *list);
diff --git a/lib/tar/read_header.c b/lib/tar/read_header.c
index a874972..63de699 100644
--- a/lib/tar/read_header.c
+++ b/lib/tar/read_header.c
@@ -77,7 +77,7 @@ static tar_xattr_t *mkxattr(const char *key, size_t keylen,
static int read_pax_header(int fd, uint64_t entsize, unsigned int *set_by_pax,
tar_header_decoded_t *out)
{
- sqfs_sparse_map_t *sparse_last = NULL, *sparse;
+ sparse_map_t *sparse_last = NULL, *sparse;
uint64_t field, offset = 0, num_bytes = 0;
char *buffer, *line, *key, *ptr, *value;
tar_xattr_t *xattr;
diff --git a/lib/tar/read_sparse_map.c b/lib/tar/read_sparse_map.c
index 981a808..0779b96 100644
--- a/lib/tar/read_sparse_map.c
+++ b/lib/tar/read_sparse_map.c
@@ -8,9 +8,9 @@
#include "internal.h"
-sqfs_sparse_map_t *read_sparse_map(const char *line)
+sparse_map_t *read_sparse_map(const char *line)
{
- sqfs_sparse_map_t *last = NULL, *list = NULL, *ent = NULL;
+ sparse_map_t *last = NULL, *list = NULL, *ent = NULL;
do {
ent = calloc(1, sizeof(*ent));
diff --git a/lib/tar/read_sparse_map_old.c b/lib/tar/read_sparse_map_old.c
index 7fb4cb3..5891bdb 100644
--- a/lib/tar/read_sparse_map_old.c
+++ b/lib/tar/read_sparse_map_old.c
@@ -8,9 +8,9 @@
#include "internal.h"
-sqfs_sparse_map_t *read_gnu_old_sparse(int fd, tar_header_t *hdr)
+sparse_map_t *read_gnu_old_sparse(int fd, tar_header_t *hdr)
{
- sqfs_sparse_map_t *list = NULL, *end = NULL, *node;
+ sparse_map_t *list = NULL, *end = NULL, *node;
gnu_sparse_t sph;
uint64_t off, sz;
int i;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 05:04:45 +0000