rpm2cpio: handle unseekable input correctly

function                                             old     new   delta
data_skip                                             14      20      +6
seek_by_jump                                          67      72      +5
data_align                                            81      84      +3
seek_by_read                                          20      19      -1
skip_header                                           99      94      -5
rpm2cpio_main                                        183     177      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/3 up/down: 14/-12)              Total: 2 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/include/unarchive.h b/include/unarchive.h
index 682e810d5..d8cb2a081 100644
--- a/include/unarchive.h
+++ b/include/unarchive.h
@@ -60,8 +60,8 @@ typedef struct archive_handle_t {
         /* Count the number of bytes processed */
         off_t offset;
 
-        /* Function that skips data: read_by_char or read_by_skip */
-        void FAST_FUNC (*seek)(const struct archive_handle_t *archive_handle, const unsigned amount);
+        /* Function that skips data */
+        void FAST_FUNC (*seek)(int fd, off_t amount);
 
         /* Temporary storage */
         char *buffer;
@@ -107,8 +107,8 @@ extern char get_header_tar_gz(archive_handle_t *archive_handle) FAST_FUNC;
 extern char get_header_tar_bz2(archive_handle_t *archive_handle) FAST_FUNC;
 extern char get_header_tar_lzma(archive_handle_t *archive_handle) FAST_FUNC;
 
-extern void seek_by_jump(const archive_handle_t *archive_handle, unsigned amount) FAST_FUNC;
-extern void seek_by_read(const archive_handle_t *archive_handle, unsigned amount) FAST_FUNC;
+extern void seek_by_jump(int fd, off_t amount) FAST_FUNC;
+extern void seek_by_read(int fd, off_t amount) FAST_FUNC;
 
 extern void data_align(archive_handle_t *archive_handle, unsigned boundary) FAST_FUNC;
 extern const llist_t *find_list_entry(const llist_t *list, const char *filename) FAST_FUNC;