capng_apply_caps_fd(3)

capng_apply_caps_fd3

Write file-based capabilities to extended attributes

Usage

#include <cap-ng.h>

int capng_apply_caps_fd(int fd);

Overview

This function will write the file based capabilities to the extended attributes of the file that the descriptor was opened against. The bounding set is not included in file based capabilities operations. Note that this function will only work if compiled on a kernel that supports file based capabilities such as 2.6.2 6 and later.

Return value

This returns 0 on success, -1 if something besides a regular file is passed or the extended attribute operation fails, and -2 if the file capability data cannot be serialized.

Releases

3 releases since Debian 12 (Bookworm); the text changed 1 time.

  1. 12–13
  2. Arch

Author

Steve Grubb

From libcap-ng 0.9.6-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.