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Diffstat (limited to 'v_windows/v/thirdparty/zip/zip.h')
| -rw-r--r-- | v_windows/v/thirdparty/zip/zip.h | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/v_windows/v/thirdparty/zip/zip.h b/v_windows/v/thirdparty/zip/zip.h new file mode 100644 index 0000000..cd4198b --- /dev/null +++ b/v_windows/v/thirdparty/zip/zip.h @@ -0,0 +1,345 @@ +/* + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#pragma once +#ifndef ZIP_H +#define ZIP_H + +#include <string.h> +#include <sys/types.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(_SSIZE_T_DEFINED) && !defined(_SSIZE_T_DEFINED_) && \ + !defined(__DEFINED_ssize_t) && !defined(__ssize_t_defined) && \ + !defined(_SSIZE_T) && !defined(_SSIZE_T_) && !defined(_SSIZE_T_DECLARED) + +// 64-bit Windows is the only mainstream platform +// where sizeof(long) != sizeof(void*) +#ifdef _WIN64 +typedef long long ssize_t; /* byte count or error */ +#else +typedef long ssize_t; /* byte count or error */ +#endif + +#define _SSIZE_T_DEFINED +#define _SSIZE_T_DEFINED_ +#define __DEFINED_ssize_t +#define __ssize_t_defined +#define _SSIZE_T +#define _SSIZE_T_ +#define _SSIZE_T_DECLARED + +#endif + +#ifndef MAX_PATH +#define MAX_PATH 32767 /* # chars in a path name including NULL */ +#endif + +/** + * @mainpage + * + * Documenation for @ref zip. + */ + +/** + * @addtogroup zip + * @{ + */ + +/** + * Default zip compression level. + */ + +#define ZIP_DEFAULT_COMPRESSION_LEVEL 6 + +/** + * @struct zip_t + * + * This data structure is used throughout the library to represent zip archive - + * forward declaration. + */ +struct zip_t; + +/** + * Opens zip archive with compression level using the given mode. + * + * @param zipname zip archive file name. + * @param level compression level (0-9 are the standard zlib-style levels). + * @param mode file access mode. + * - 'r': opens a file for reading/extracting (the file must exists). + * - 'w': creates an empty file for writing. + * - 'a': appends to an existing archive. + * + * @return the zip archive handler or NULL on error + */ +extern struct zip_t *zip_open(const char *zipname, int level, char mode); + +/** + * Closes the zip archive, releases resources - always finalize. + * + * @param zip zip archive handler. + */ +extern void zip_close(struct zip_t *zip); + +/** + * Determines if the archive has a zip64 end of central directory headers. + * + * @param zip zip archive handler. + * + * @return the return code - 1 (true), 0 (false), negative number (< 0) on + * error. + */ +extern int zip_is64(struct zip_t *zip); + +/** + * Opens an entry by name in the zip archive. + * + * For zip archive opened in 'w' or 'a' mode the function will append + * a new entry. In readonly mode the function tries to locate the entry + * in global dictionary. + * + * @param zip zip archive handler. + * @param entryname an entry name in local dictionary. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_entry_open(struct zip_t *zip, const char *entryname); + +/** + * Opens a new entry by index in the zip archive. + * + * This function is only valid if zip archive was opened in 'r' (readonly) mode. + * + * @param zip zip archive handler. + * @param index index in local dictionary. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_entry_openbyindex(struct zip_t *zip, int index); + +/** + * Closes a zip entry, flushes buffer and releases resources. + * + * @param zip zip archive handler. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_entry_close(struct zip_t *zip); + +/** + * Returns a local name of the current zip entry. + * + * The main difference between user's entry name and local entry name + * is optional relative path. + * Following .ZIP File Format Specification - the path stored MUST not contain + * a drive or device letter, or a leading slash. + * All slashes MUST be forward slashes '/' as opposed to backwards slashes '\' + * for compatibility with Amiga and UNIX file systems etc. + * + * @param zip: zip archive handler. + * + * @return the pointer to the current zip entry name, or NULL on error. + */ +extern const char *zip_entry_name(struct zip_t *zip); + +/** + * Returns an index of the current zip entry. + * + * @param zip zip archive handler. + * + * @return the index on success, negative number (< 0) on error. + */ +extern int zip_entry_index(struct zip_t *zip); + +/** + * Determines if the current zip entry is a directory entry. + * + * @param zip zip archive handler. + * + * @return the return code - 1 (true), 0 (false), negative number (< 0) on + * error. + */ +extern int zip_entry_isdir(struct zip_t *zip); + +/** + * Returns an uncompressed size of the current zip entry. + * + * @param zip zip archive handler. + * + * @return the uncompressed size in bytes. + */ +extern unsigned long long zip_entry_size(struct zip_t *zip); + +/** + * Returns CRC-32 checksum of the current zip entry. + * + * @param zip zip archive handler. + * + * @return the CRC-32 checksum. + */ +extern unsigned int zip_entry_crc32(struct zip_t *zip); + +/** + * Compresses an input buffer for the current zip entry. + * + * @param zip zip archive handler. + * @param buf input buffer. + * @param bufsize input buffer size (in bytes). + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_entry_write(struct zip_t *zip, const void *buf, size_t bufsize); + +/** + * Compresses a file for the current zip entry. + * + * @param zip zip archive handler. + * @param filename input file. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_entry_fwrite(struct zip_t *zip, const char *filename); + +/** + * Extracts the current zip entry into output buffer. + * + * The function allocates sufficient memory for a output buffer. + * + * @param zip zip archive handler. + * @param buf output buffer. + * @param bufsize output buffer size (in bytes). + * + * @note remember to release memory allocated for a output buffer. + * for large entries, please take a look at zip_entry_extract function. + * + * @return the return code - the number of bytes actually read on success. + * Otherwise a -1 on error. + */ +extern ssize_t zip_entry_read(struct zip_t *zip, void **buf, size_t *bufsize); + +/** + * Extracts the current zip entry into a memory buffer using no memory + * allocation. + * + * @param zip zip archive handler. + * @param buf preallocated output buffer. + * @param bufsize output buffer size (in bytes). + * + * @note ensure supplied output buffer is large enough. + * zip_entry_size function (returns uncompressed size for the current + * entry) can be handy to estimate how big buffer is needed. for large + * entries, please take a look at zip_entry_extract function. + * + * @return the return code - the number of bytes actually read on success. + * Otherwise a -1 on error (e.g. bufsize is not large enough). + */ +extern ssize_t zip_entry_noallocread(struct zip_t *zip, void *buf, + size_t bufsize); + +/** + * Extracts the current zip entry into output file. + * + * @param zip zip archive handler. + * @param filename output file. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_entry_fread(struct zip_t *zip, const char *filename); + +/** + * Extracts the current zip entry using a callback function (on_extract). + * + * @param zip zip archive handler. + * @param on_extract callback function. + * @param arg opaque pointer (optional argument, which you can pass to the + * on_extract callback) + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int +zip_entry_extract(struct zip_t *zip, + size_t (*on_extract)(void *arg, unsigned long long offset, + const void *data, size_t size), + void *arg); + +/** + * Returns the number of all entries (files and directories) in the zip archive. + * + * @param zip zip archive handler. + * + * @return the return code - the number of entries on success, negative number + * (< 0) on error. + */ +extern int zip_total_entries(struct zip_t *zip); + +/** + * Creates a new archive and puts files into a single zip archive. + * + * @param zipname zip archive file. + * @param filenames input files. + * @param len: number of input files. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_create(const char *zipname, const char *filenames[], size_t len); + +/** + * Extracts a zip archive file into directory. + * + * If on_extract_entry is not NULL, the callback will be called after + * successfully extracted each zip entry. + * Returning a negative value from the callback will cause abort and return an + * error. The last argument (void *arg) is optional, which you can use to pass + * data to the on_extract_entry callback. + * + * @param zipname zip archive file. + * @param dir output directory. + * @param on_extract_entry on extract callback. + * @param arg opaque pointer. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_extract(const char *zipname, const char *dir, + int (*on_extract_entry)(const char *filename, void *arg), + void *arg); +// temporary working unzip solution +extern int zip_extract_without_callback(const char *zipname, const char *dir); + +/** + * Extracts a zip archive stream into directory. + * + * If on_extract is not NULL, the callback will be called after + * successfully extracted each zip entry. + * Returning a negative value from the callback will cause abort and return an + * error. The last argument (void *arg) is optional, which you can use to pass + * data to the on_extract callback. + * + * @param stream zip archive stream. + * @param size stream size. + * @param dir output directory. + * @param on_extract on extract callback. + * @param arg opaque pointer. + * + * @return the return code - 0 on success, negative number (< 0) on error. + */ +extern int zip_extract_stream(const char *stream, size_t size, const char *dir, + int (*on_extract)(const char *filename, + void *arg), + void *arg); +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif |