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Reorganise archive extraction code

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This commit is contained in:
Glenn L McGrath
2001-06-13 07:26:39 +00:00
parent dab3d46b9d
commit 9aff903603
11 changed files with 330 additions and 343 deletions
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49
libbb/libbb.h
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@ -213,36 +213,41 @@ char *xreadlink(const char *path);
char *concat_path_file(const char *path, const char *filename);
char *last_char_is(const char *s, int c);
typedef struct ar_headers_s {
typedef struct file_headers_s {
char *name;
char *link_name;
off_t size;
uid_t uid;
gid_t gid;
mode_t mode;
time_t mtime;
off_t offset;
struct ar_headers_s *next;
} ar_headers_t;
extern ar_headers_t *get_ar_headers(FILE *in_file);
extern int seek_ared_file(FILE *in_file, ar_headers_t *headers, const char *tar_gz_file);
dev_t device;
struct file_headers_s *next;
} file_headers_t;
file_headers_t *get_ar_headers(FILE *in_file);
file_headers_t *get_tar_headers(FILE *tar_stream);
file_headers_t *get_tar_gz_headers(FILE *compressed_stream);
file_headers_t *append_archive_list(file_headers_t *head, file_headers_t *tail_entry);
file_headers_t *add_from_archive_list(file_headers_t *master_list, file_headers_t *new_list, const char *name);
typedef enum extract_function_e {
extract_contents = 1,
extract_control = 2,
extract_info = 4,
extract_extract = 8,
extract_verbose_extract = 16,
extract_list = 32,
extract_fsys_tarfile = 64,
extract_field = 128,
extract_contents_to_file = 256
} extract_function_t;
extern char *deb_extract(const char *package_filename, int function,
const char *argument, const char *argument2);
extern char *untar(FILE *src_tar_file, FILE *output, int untar_function,
const char *argument, const char *file_prefix);
extern char *read_text_file_to_buffer(FILE *src_file);
extern char *read_package_field(const char *package_buffer);
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
};
char *extract_archive(FILE *src_stream, FILE *out_stream, file_headers_t *extract_headers, int function, const char *prefix);
char *deb_extract(const char *package_filename, FILE *out_stream, const int function,
const char *prefix, const char *filename);
char *read_package_field(const char *package_buffer);
int seek_sub_file(FILE *in_file, file_headers_t *headers, const char *tar_gz_file);
char *fgets_str(FILE *file, const char *terminating_string);
extern int unzip(FILE *l_in_file, FILE *l_out_file);
extern void gz_close(int gunzip_pid);