zip_file_get_external_attributes - get external attributes for file in zip
#include <zip.h> int zip_file_get_external_attributes(zip_t *archive, zip_uint64_t index, zip_flags_t flags, zip_uint8_t *opsys, zip_uint32_t *attributes);
ZIP_FILE_GET_EXTERNAL... BSD Library Functions Manual ZIP_FILE_GET_EXTERNAL...
NAME
zip_file_get_external_attributes -- get external attributes for file in
zip
LIBRARY
libzip (-lzip)
SYNOPSIS
#include <zip.h>
int
zip_file_get_external_attributes(zip_t *archive, zip_uint64_t index,
zip_flags_t flags, zip_uint8_t *opsys, zip_uint32_t *attributes);
DESCRIPTION
The zip_file_get_external_attributes() function returns the operating
system and external attributes for the file at position index in the zip
archive. The external attributes usually contain the operating system-
specific file permissions. If flags is set to ZIP_FL_UNCHANGED, the
original unchanged values are returned. If opsys or attributes are NULL,
they are not filled in.
The following operating systems are defined by the zip specification:
ZIP_OPSYS_ACORN_RISC
ZIP_OPSYS_ALTERNATE_MVS
ZIP_OPSYS_AMIGA
ZIP_OPSYS_ATARI_ST
ZIP_OPSYS_BEOS
ZIP_OPSYS_CPM
ZIP_OPSYS_DOS
ZIP_OPSYS_MACINTOSH
ZIP_OPSYS_MVS
ZIP_OPSYS_OPENVMS
ZIP_OPSYS_OS_2
ZIP_OPSYS_OS_400
ZIP_OPSYS_OS_X
ZIP_OPSYS_TANDEM
ZIP_OPSYS_UNIX
ZIP_OPSYS_VFAT
ZIP_OPSYS_VM_CMS
ZIP_OPSYS_VSE
ZIP_OPSYS_WINDOWS_NTFS (uncommon, use ZIP_OPSYS_DOS instead)
ZIP_OPSYS_Z_SYSTEM
The defines above follow the PKWARE Inc. Appnote; please note that the
InfoZIP Appnote has a slightly different mapping.
RETURN VALUES
Upon successful completion, 0 is returned. In case of an error, -1 is
returned and the error code in archive is set to indicate the error.
EXAMPLES
The following code can be used to expand attributes if the operating sys-
tem is ZIP_OPSYS_DOS.
#include <sys/stat.h>
#define FA_RDONLY 0x01 // FILE_ATTRIBUTE_READONLY
#define FA_DIREC 0x10 // FILE_ATTRIBUTE_DIRECTORY
static mode_t
_zip_dos_attr2mode(zip_uint32_t attr)
{
mode_t m = S_IRUSR | S_IRGRP | S_IROTH;
if (0 == (attr & FA_RDONLY))
m |= S_IWUSR | S_IWGRP | S_IWOTH;
if (attr & FA_DIREC)
m = (S_IFDIR | (m & ~S_IFMT)) | S_IXUSR | S_IXGRP | S_IXOTH;
return m;
}
ERRORS
zip_file_get_external_attributes() fails if:
[ZIP_ER_INVAL] index is not a valid file index in archive.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | compress/libzip |
+---------------+------------------+
|Stability | Volatile |
+---------------+------------------+
SEE ALSO
libzip(3), zip_file_set_external_attributes(3)
HISTORY
zip_file_get_external_attributes() was added in libzip 0.11.2.
AUTHORS
Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>
NOTES
Source code for open source software components in Oracle Solaris can be
found at https://www.oracle.com/downloads/opensource/solaris-source-code-
downloads.html.
This software was built from source available at https://github.com/ora-
cle/solaris-userland. The original community source was downloaded from
https://libzip.org/download/libzip-1.7.3.tar.gz.
Further information about this software can be found on the open source
community website at https://libzip.org/.
BSD December 18, 2017 BSD