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/*
* SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
int, newdfd, const char __user *, newname, int, flags)
*/
#include <fcntl.h>
#include <stdlib.h>
#include "shm.h"
#include "sanitise.h"
#include "compat.h"
static void sanitise_linkat(int childno)
{
/* .. If oldpath is relative and olddirfd is the special value AT_FDCWD, then oldpath is
* interpreted relative to the current working directory of the calling process */
if ((rand() % 100) == 0)
shm->a1[childno] = AT_FDCWD;
}
struct syscall syscall_linkat = {
.name = "linkat",
.num_args = 5,
.arg1name = "olddfd",
.arg1type = ARG_FD,
.arg2name = "oldname",
.arg2type = ARG_PATHNAME,
.arg3name = "newdfd",
.arg3type = ARG_FD,
.arg4name = "newname",
.arg4type = ARG_PATHNAME,
.arg5name = "flags",
.arg5type = ARG_LIST,
.arg5list = {
.num = 2,
.values = { AT_SYMLINK_FOLLOW , AT_EMPTY_PATH },
},
.flags = NEED_ALARM,
.group = GROUP_VFS,
.sanitise = sanitise_linkat,
};
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