Provided by: libkeyutils-dev_1.6.1-2ubuntu3_amd64
keyctl_clear - clear a keyring
#include <keyutils.h> long keyctl_clear(key_serial_t keyring);
keyctl_clear() clears the contents of a keyring. The caller must have write permission on a keyring to be able clear it.
On success keyctl_clear() returns 0. On error, the value -1 will be returned and errno will have been set to an appropriate error.
ENOKEY The keyring specified is invalid. EKEYEXPIRED The keyring specified has expired. EKEYREVOKED The keyring specified had been revoked. EACCES The keyring exists, but is not writable by the calling process.
This is a library function that can be found in libkeyutils. When linking, -lkeyutils should be specified to the linker.