X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Funarchive.h;h=752a05c8670198d22512394abb8dcb5504cf5b41;hb=5d8843e451c01d8abfe6b5be772637310e9e581e;hp=be49f3d01955183c6e14ff711ab784d500de0e0b;hpb=9af363fe20002c7390966d4b71fcdee27b3686ba;p=oweals%2Fbusybox.git diff --git a/include/unarchive.h b/include/unarchive.h index be49f3d01..752a05c86 100644 --- a/include/unarchive.h +++ b/include/unarchive.h @@ -1,21 +1,18 @@ -#include // for FILE -#include // 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 -}; +/* vi: set sw=4 ts=4: */ +#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 +#define ARCHIVE_EXTRACT_NEWER 16 +#define ARCHIVE_NOPRESERVE_OWN 32 +#define ARCHIVE_NOPRESERVE_PERM 64 + +#include +#include +#include "libbb.h" typedef struct file_headers_s { char *name; @@ -28,16 +25,91 @@ typedef struct file_headers_s { dev_t device; } 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); +typedef struct archive_handle_s { + /* define if the header and data component should processed */ + char (*filter)(struct archive_handle_s *); + llist_t *accept; + /* List of files that have been rejected */ + llist_t *reject; + /* List of files that have successfully been worked on */ + llist_t *passed; + + /* 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 component, e.g. extract to filesystem */ + void (*action_data)(struct archive_handle_s *); + + /* How to process any sub archive, e.g. get_header_tar_gz */ + 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; + + /* Function that skips data: read_by_char or read_by_skip */ + void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount); + + /* Temporary storage */ + char *buffer; + + /* Flags and misc. stuff */ + unsigned char flags; + +} archive_handle_t; + +extern archive_handle_t *init_handle(void); + +extern char filter_accept_all(archive_handle_t *archive_handle); +extern char filter_accept_list(archive_handle_t *archive_handle); +extern char filter_accept_list_reassign(archive_handle_t *archive_handle); +extern char filter_accept_reject_list(archive_handle_t *archive_handle); + +extern void unpack_ar_archive(archive_handle_t *ar_archive); + +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 data_extract_to_buffer(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); + +extern void check_header_gzip(int src_fd); + +extern char get_header_ar(archive_handle_t *archive_handle); +extern char get_header_cpio(archive_handle_t *archive_handle); +extern char get_header_tar(archive_handle_t *archive_handle); +extern char get_header_tar_bz2(archive_handle_t *archive_handle); +extern char get_header_tar_lzma(archive_handle_t *archive_handle); +extern char get_header_tar_gz(archive_handle_t *archive_handle); + +extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount); +extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount); + +extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count); +extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count); + +extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary); +extern const llist_t *find_list_entry(const llist_t *list, const char *filename); -void seek_sub_file(FILE *src_stream, const int count); +extern int uncompressStream(int src_fd, int dst_fd); +extern void inflate_init(unsigned int bufsize); +extern void inflate_cleanup(void); +extern int inflate_unzip(int in, int out); +extern int inflate_gunzip(int in, int out); +extern int unlzma(int src_fd, int dst_fd); -extern off_t archive_offset; +extern int open_transformer(int src_fd, int (*transformer)(int src_fd, int dst_fd)); -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); -char *deb_extract(const char *package_filename, FILE *out_stream, const int extract_function, - const char *prefix, const char *filename); +#endif