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/* ISC license. */
#include <skalibs/sysdeps.h>
#ifdef SKALIBS_HASCLONENEWPID
#include <skalibs/nonposix.h>
#include <sys/syscall.h>
#include <stdint.h>
#include <unistd.h>
#include <signal.h>
#include <sched.h>
#include <errno.h>
#include <skalibs/uint64.h>
struct clone_args
{
uint64_t flags ;
uint64_t pidfd ;
uint64_t child_tid ;
uint64_t parent_tid ;
uint64_t exit_signal ;
uint64_t stack ;
uint64_t stack_size ;
uint64_t tls ;
uint64_t set_tid ;
uint64_t set_tid_size ;
uint64_t cgroup ;
} ;
pid_t fork_newpid (void)
{
pid_t pid ;
pid_t settid = 1 ;
struct clone_args args =
{
.flags = CLONE_NEWPID | CLONE_PARENT_SETTID,
.pidfd = 0,
.child_tid = 0,
.parent_tid = (uint64_t)&pid,
.exit_signal = SIGCHLD,
.stack = 0,
.stack_size = 0,
.tls = 0,
.set_tid = (uint64_t)&settid,
.set_tid_size = 1,
.cgroup = 0
} ;
long r = syscall(SYS_clone3, &args, sizeof(args)) ;
if (r < 0) return (errno = -r, -1) ;
return r ? pid : 0 ;
}
#else
#include <unistd.h>
#include <errno.h>
pid_t fork_newpid (void)
{
errno = ENOSYS ;
return -1 ;
}
#endif
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