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/**
* close_range() - Close all file descriptors in a given range.
*
* @fd: starting file descriptor to close
* @max_fd: last file descriptor to close
* @flags: reserved for future extensions
*
* This closes a range of file descriptors. All file descriptors
* from @fd up to and including @max_fd are closed.
* Currently, errors to close a given file descriptor are ignored.
*/
#include "sanitise.h"
#include "syscall.h"
#define CLOSE_RANGE_UNSHARE (1U << 1)
#define CLOSE_RANGE_CLOEXEC (1U << 2)
static unsigned long close_range_flags[] = {
CLOSE_RANGE_UNSHARE, CLOSE_RANGE_CLOEXEC,
};
struct syscallentry syscall_close_range = {
.name = "close_range",
.num_args = 3,
.arg1name = "fd",
.arg1type = ARG_FD,
.arg2name = "max_fd",
.arg2type = ARG_FD,
.arg3name = "flags",
.arg3type = ARG_LIST,
.arg3list = ARGLIST(close_range_flags),
.flags = AVOID_SYSCALL,
.rettype = RET_ZERO_SUCCESS,
};
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