man zip_source_file (3): create data source from a file

LIBRARY

libzip (-lzip)

SYNOPSIS

zip_source_t *

zip_source_file(zip_t *archive, const char *fname, zip_uint64_t start, zip_int64_t len);

zip_source_t *

zip_source_file_create(const char *fname, zip_uint64_t start, zip_int64_t len, zip_error_t *error);

DESCRIPTION

The functions zip_source_file() and zip_source_file_create() create a zip source from a file. They open fname and read len bytes from offset start from it. If len is 0 or -1, the whole file (starting from start) is used.

If the file supports seek, the source can be used to open a zip archive from.

The file is opened and read when the data from the source is used, usually by zip_close() or zip_open_from_source().

RETURN VALUES

Upon successful completion, the created source is returned. Otherwise, NULL is returned and the error code in archive or error is set to indicate the error.

ERRORS

zip_source_file() and zip_source_file_create() fail if:

[ZIP_ER_INVAL]: fname, start, or len are invalid.
[ZIP_ER_MEMORY]: Required memory could not be allocated.
[ZIP_ER_OPEN]: Opening fname failed.

AUTHORS

Dieter Baron <[email protected]> and Thomas Klausner <[email protected]>