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libunarchive, and recovery from my previous commit

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This commit is contained in:
Glenn L McGrath 2001-10-25 14:57:14 +00:00
parent 633f153808
commit e9fc781570
2 changed files with 42 additions and 77 deletions
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77
include/libbb.h
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@ -212,39 +212,6 @@ char *last_char_is(const char *s, int c);
extern long arith (const char *startbuf, int *errcode);
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;
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);
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
};
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);
int read_package_field(const char *package_buffer, char **field_name, char **field_value);
char *fgets_str(FILE *file, const char *terminating_string);
@ -318,49 +285,5 @@ extern const char * const can_not_create_raw_socket;
/* The following devices are the same on devfs and non-devfs systems. */
#define CURRENT_TTY "/dev/tty"
#define CONSOLE_DEV "/dev/console"
typedef struct deb_file_s {
char *filename;
char *control_file;
unsigned short node:14;
} deb_file_t;
typedef struct node_s {
/* This are always used by dpkg */
unsigned short name:14;
unsigned short epoch:4;
unsigned short version:12;
unsigned short revision:8;
unsigned short essential:1;
unsigned short state_want:3;
unsigned short state_flag:2;
unsigned short state_status:3;
unsigned short pool_flag:2;
unsigned short source:11;
unsigned short filename:11;
unsigned short num_of_edges:7;
unsigned short *edge;
#ifdef BB_FEATURE_DPKG_LIST_SHORT_DESCRIPTIONS
char *description_short; /* This is used by dpkg -l */
#endif
} node_t;
/* All these are in deb_functs.c */
extern void deb_initialise_hashtables(short type);
extern void write_status_file(deb_file_t **deb_file);
extern void configure_package(deb_file_t *deb_file);
extern void unpack_package(deb_file_t *deb_file);
extern void remove_package(const unsigned int node_num);
extern void index_status_file(const char *filename);
extern void find_deps(const char *package_name);
extern void purge_package(const unsigned int node_num);
extern node_t *parse_package_metadata(char *control_buffer);
extern unsigned short search_node_ht(node_t *search_node, unsigned short operator);
extern void add_node(node_t *node, unsigned short node_num);
extern node_t *initialise_node(const char *package_name);
extern char *get_name_ht(unsigned short name_num);
extern void free_hashtables(void);
extern node_t *get_node_ht(unsigned short node_num);
extern char *version_revision(unsigned short version_num, unsigned short revision_num);
extern void free_node(node_t *node);
#endif /* __LIBCONFIG_H__ */

42
include/unarchive.h Normal file
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@ -0,0 +1,42 @@
#include <stdio.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
};
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;
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);
void seek_sub_file(FILE *src_stream, const int count);
extern off_t archive_offset;
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);