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authorGlenn L McGrath2002-09-25 02:47:48 +0000
committerGlenn L McGrath2002-09-25 02:47:48 +0000
commit7ca04f328e22fcbee4659d73f9a72dfdf1dd6a23 (patch)
treef38c7ef4317eea28c6abdb0adbbb286fe041711e /include/unarchive.h
parentecfa290cfd4953598e6d91989bd66ac16e135f84 (diff)
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New common unarchive code.
Diffstat (limited to 'include/unarchive.h')
-rw-r--r--include/unarchive.h109
1 files changed, 77 insertions, 32 deletions
diff --git a/include/unarchive.h b/include/unarchive.h
index ffddc89..e564e95 100644
--- a/include/unarchive.h
+++ b/include/unarchive.h
@@ -1,21 +1,19 @@
-#include <stdio.h> /* for FILE */
-#include <unistd.h> /* for off_t */
-
-enum extract_functions_e {
- extract_verbose_list = 1,
- extract_list = 2,
- extract_one_to_buffer = 4,
- extract_to_stdout = 8,
- extract_all_to_fs = 16,
- extract_preserve_date = 32,
- extract_data_tar_gz = 64,
- extract_control_tar_gz = 128,
- extract_unzip_only = 256,
- extract_unconditional = 512,
- extract_create_leading_dirs = 1024,
- extract_quiet = 2048,
- extract_exclude_list = 4096
-};
+#ifndef __UNARCHIVE_H__
+#define __UNARCHIVE_H__
+
+#define ARCHIVE_PRESERVE_DATE 1
+#define ARCHIVE_CREATE_LEADING_DIRS 2
+#define ARCHIVE_EXTRACT_UNCONDITIONAL 4
+#define ARCHIVE_EXTRACT_QUIET 8
+
+#include <sys/types.h>
+
+typedef struct gunzip_s {
+ unsigned short buffer_count;
+ unsigned char *buffer;
+ unsigned int crc;
+ unsigned int count;
+} gunzip_t;
typedef struct file_headers_s {
char *name;
@@ -26,23 +24,70 @@ typedef struct file_headers_s {
mode_t mode;
time_t mtime;
dev_t device;
- int (*extract_func) (FILE *, FILE *);
} file_header_t;
-file_header_t *get_header_ar(FILE * in_file);
-file_header_t *get_header_cpio(FILE * src_stream);
-file_header_t *get_header_tar(FILE * tar_stream);
-file_header_t *get_header_zip(FILE * zip_stream);
+typedef struct llist_s {
+ const char *data;
+ const struct llist_s *link;
+} llist_t;
+
+typedef struct archive_handle_s {
+ /* define if the header and data compenent should processed */
+ char (*filter)(const llist_t *, const llist_t *, const char *);
+ const llist_t *accept;
+ const llist_t *reject;
+
+ /* Contains the processed header entry */
+ file_header_t *file_header;
+
+ /* process the header component, e.g. tar -t */
+ void (*action_header)(const file_header_t *);
+
+ /* process the data componenet, e.g. extract to filesystem */
+ void (*action_data)(struct archive_handle_s *);
+ char (*action_data_subarchive)(struct archive_handle_s *);
+
+ /* Contains the handle to a sub archive */
+ struct archive_handle_s *sub_archive;
+
+ /* The raw stream as read from disk or stdin */
+ int src_fd;
+
+ /* Count the number of bytes processed */
+ off_t offset;
+
+ /* Misc. stuff */
+ unsigned char flags;
+
+} archive_handle_t;
+
+extern archive_handle_t *init_handle(void);
+
+extern char filter_accept_all(const llist_t *accept_list, const llist_t *reject_list, const char *key);
+extern char filter_accept_list(const llist_t *accept_list, const llist_t *reject_list, const char *key);
+extern char filter_accept_reject_list(const llist_t *accept_list, const llist_t *reject_list, const char *key);
+
+extern void unpack_ar_archive(archive_handle_t *ar_archive);
+
+extern void data_gunzip(archive_handle_t *archive_handle);
+extern void data_skip(archive_handle_t *archive_handle);
+extern void data_extract_all(archive_handle_t *archive_handle);
+extern void data_extract_to_stdout(archive_handle_t *archive_handle);
+
+extern void header_skip(const file_header_t *file_header);
+extern void header_list(const file_header_t *file_header);
+extern void header_verbose_list(const file_header_t *file_header);
-void seek_sub_file(FILE * src_stream, const int count);
+extern void check_header_gzip(int src_fd);
+extern void check_trailer_gzip(int src_fd);
-extern off_t archive_offset;
+extern char get_header_ar(archive_handle_t *archive_handle);
+extern char get_header_tar(archive_handle_t *archive_handle);
+extern char get_header_tar_gz(archive_handle_t *archive_handle);
-char *unarchive(FILE * src_stream, FILE * out_stream,
- file_header_t * (*get_headers) (FILE *),
- const int extract_function, const char *prefix,
- char **include_name, char **exclude_name);
+//extern void seek_sub_file(int src_fd, unsigned int amount);
+extern const unsigned short data_align(const int src_fd, const unsigned int offset, const unsigned short align_to);
+extern const llist_t *add_to_list(const llist_t *old_head, const char *new_item);
+extern int copy_file_chunk_fd(int src_fd, int dst_fd, unsigned long long chunksize);
-char *deb_extract(const char *package_filename, FILE * out_stream,
- const int extract_function, const char *prefix,
- const char *filename);
+#endif