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container/syscall: doc comments from manpages
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Browse Source 
These are pulled straight from the manpages.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra 2025-08-21 00:33:46 +09:00
parent 5d8a2199b6
commit 5b73316ae0
Signed by: cat
SSH Key Fingerprint: SHA256:wr6yH7sDDbUFi81k/GsIGwpM3O2QrwqYlLF26CcJa4w
1 changed files with 8 additions and 5 deletions
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13
container/syscall.go
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@ -4,11 +4,7 @@ import (
"syscall"
)
const (
SUID_DUMP_DISABLE = iota
SUID_DUMP_USER
)
// SetPtracer allows processes to ptrace(2) the calling process.
func SetPtracer(pid uintptr) error {
_, _, errno := syscall.Syscall(syscall.SYS_PRCTL, syscall.PR_SET_PTRACER, pid, 0)
if errno == 0 {
@ -17,6 +13,12 @@ func SetPtracer(pid uintptr) error {
return errno
}
const (
SUID_DUMP_DISABLE = iota
SUID_DUMP_USER
)
// SetDumpable sets the "dumpable" attribute of the calling process.
func SetDumpable(dumpable uintptr) error {
// linux/sched/coredump.h
if _, _, errno := syscall.Syscall(syscall.SYS_PRCTL, syscall.PR_SET_DUMPABLE, dumpable, 0); errno != 0 {
@ -26,6 +28,7 @@ func SetDumpable(dumpable uintptr) error {
return nil
}
// SetNoNewPrivs sets the calling thread's no_new_privs attribute.
func SetNoNewPrivs() error {
_, _, errno := syscall.Syscall(syscall.SYS_PRCTL, PR_SET_NO_NEW_PRIVS, 1, 0)
if errno == 0 {