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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-09-08 14:53:30 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-09-08 14:53:30 +0200
commit3a851dfe87c88ac1d4dddc2a26cc48b037f852f9 (patch)
treea8a8f34291aa58b25737088d247a91a7f60b4fec /lib/sqfs/read_super.c
parent60064dd0412a149fe00cfc4e2f2361c22656db57 (diff)
Replace direct file I/O with abstraction layer
This should make it easier to use libsquashfs with custom setups that embedd a squashfs image inside something else. Also, it should make it easier to port to non unix-like platforms. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/sqfs/read_super.c')
-rw-r--r--lib/sqfs/read_super.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/sqfs/read_super.c b/lib/sqfs/read_super.c
index 9f7425c..23909e0 100644
--- a/lib/sqfs/read_super.c
+++ b/lib/sqfs/read_super.c
@@ -9,19 +9,21 @@
#include "sqfs/super.h"
#include "sqfs/error.h"
+#include "sqfs/io.h"
#include "util.h"
#include <endian.h>
#include <string.h>
-int sqfs_super_read(sqfs_super_t *super, int fd)
+int sqfs_super_read(sqfs_super_t *super, sqfs_file_t *file)
{
size_t block_size = 0;
sqfs_super_t temp;
- int i;
+ int i, ret;
- if (read_data_at("reading super block", 0, fd, &temp, sizeof(temp)))
- return SQFS_ERROR_IO;
+ ret = file->read_at(file, 0, &temp, sizeof(temp));
+ if (ret)
+ return ret;
temp.magic = le32toh(temp.magic);
temp.inode_count = le32toh(temp.inode_count);