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ZIP_OPEN(3) FreeBSD Library Functions Manual ZIP_OPEN(3)
NAME
zip_open, zip_open_from_source - open zip archive
LIBRARY
libzip (-lzip)
SYNOPSIS
#include <zip.h>
zip_t *
zip_open(const char *path, int flags, int *errorp);
zip_t *
zip_open_from_source(zip_source_t *zs, int flags, zip_error_t *ze);
DESCRIPTION
The zip_open() function opens the zip archive specified by path and
returns a pointer to a struct zip, used to manipulate the archive. The
flags are specified by or'ing the following values, or 0 for none of
them.
ZIP_CHECKCONS Perform additional stricter consistency checks on
the archive, and error if they fail.
ZIP_CREATE Create the archive if it does not exist.
ZIP_EXCL Error if archive already exists.
ZIP_TRUNCATE If archive exists, ignore its current contents. In
other words, handle it the same way as an empty
archive.
ZIP_RDONLY Open archive in read-only mode.
If an error occurs and errorp is non-NULL, it will be set to the
corresponding error code.
The zip_open_from_source() function opens a zip archive encapsulated by
the zip_source zs using the provided flags. In case of error, the
zip_error ze is filled in.
RETURN VALUES
Upon successful completion zip_open() and zip_open_from_source() return a
struct zip pointer. Otherwise, NULL is returned and zip_open() sets
*errorp to indicate the error, while zip_open_from(source) sets ze to
indicate the error.
EXAMPLES
Here's an example of how you could report errors during zip_open:
zip_t *za;
int err;
if ((za = zip_open(name, 0, &err)) == NULL) {
zip_error_t error;
zip_error_init_with_code(&error, err);
fprintf(stderr, "%s: cannot open zip archive '%s': %s\n",
[ZIP_ER_EXISTS] The file specified by path exists and ZIP_EXCL is set.
[ZIP_ER_INCONS] Inconsistencies were found in the file specified by
path. This error is often caused by specifying
ZIP_CHECKCONS but can also happen without it.
[ZIP_ER_INVAL] The path argument is NULL.
[ZIP_ER_MEMORY] Required memory could not be allocated.
[ZIP_ER_NOENT] The file specified by path does not exist and
ZIP_CREATE is not set.
[ZIP_ER_NOZIP] The file specified by path is not a zip archive.
[ZIP_ER_OPEN] The file specified by path could not be opened.
[ZIP_ER_READ] A read error occurred; see errno for details.
[ZIP_ER_SEEK] The file specified by path does not allow seeks.
For newly created archives, zip_open() does not try to create the file;
this is done when calling zip_close(3) and any errors, like missing write
permissions, will be reported then.
SEE ALSO
libzip(3), zip_close(3), zip_error_strerror(3), zip_fdopen(3)
HISTORY
zip_open() and zip_open_from_source() were added in libzip 1.0.
AUTHORS
Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>
FreeBSD 14.0-RELEASE-p11 October 9, 2022 FreeBSD 14.0-RELEASE-p11