table of contents
| ZIP_FILE_SET_ENCRYPTION(3) | Library Functions Manual | ZIP_FILE_SET_ENCRYPTION(3) |
NAME¶
zip_file_set_encryption —
set encryption method for file in zip
LIBRARY¶
libzip (-lzip)SYNOPSIS¶
#include <zip.h>
int
zip_file_set_encryption(zip_t
*archive, zip_uint64_t
index, zip_uint16_t
method, const char
*password);
DESCRIPTION¶
Thezip_file_set_encryption() function sets the
encryption method for the file at position index in the
zip archive to method using the password
password. The method is the same
as returned by zip_stat(3). For the
method argument, currently only the following values are
supported:
ZIP_EM_NONE- No encryption.
ZIP_EM_AES_128- Winzip AES-128 encryption.
ZIP_EM_AES_192- Winzip AES-192 encryption.
ZIP_EM_AES_256- Winzip AES-256 encryption.
If password is NULL,
the default password provided by
zip_set_default_password(3) is used.
The current encryption method for a file in a zip archive can be determined using zip_stat(3).
RETURN VALUES¶
Upon successful completion 0 is returned. Otherwise, -1 is returned and the error information in archive is set to indicate the error.ERRORS¶
zip_file_set_encryption() fails if:
- [
ZIP_ER_ENCRNOTSUPP] - Unsupported compression method requested.
- [
ZIP_ER_INVAL] - index is not a valid file index in archive, or the argument combination is invalid.
- [
ZIP_ER_MEMORY] - Required memory could not be allocated.
- [
ZIP_ER_RDONLY] - Read-only zip file, no changes allowed.
SEE ALSO¶
libzip(3), zip_set_default_password(3), zip_stat(3)HISTORY¶
zip_file_set_encryption() was added in libzip 1.2.0.
AUTHORS¶
Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>| December 18, 2017 | Linux 4.19.0-10-amd64 |