1package sysfs
 2
 3import (
 4	"os"
 5
 6	"github.com/tetratelabs/wazero/experimental/sys"
 7)
 8
 9// toOsOpenFlag converts the input to the flag parameter of os.OpenFile
10func toOsOpenFlag(oflag sys.Oflag) (flag int) {
11	// First flags are exclusive
12	switch oflag & (sys.O_RDONLY | sys.O_RDWR | sys.O_WRONLY) {
13	case sys.O_RDONLY:
14		flag |= os.O_RDONLY
15	case sys.O_RDWR:
16		flag |= os.O_RDWR
17	case sys.O_WRONLY:
18		flag |= os.O_WRONLY
19	}
20
21	// Run down the flags defined in the os package
22	if oflag&sys.O_APPEND != 0 {
23		flag |= os.O_APPEND
24	}
25	if oflag&sys.O_CREAT != 0 {
26		flag |= os.O_CREATE
27	}
28	if oflag&sys.O_EXCL != 0 {
29		flag |= os.O_EXCL
30	}
31	if oflag&sys.O_SYNC != 0 {
32		flag |= os.O_SYNC
33	}
34	if oflag&sys.O_TRUNC != 0 {
35		flag |= os.O_TRUNC
36	}
37	return withSyscallOflag(oflag, flag)
38}