39 lines
774 B
Go
39 lines
774 B
Go
package sysfs
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import (
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"os"
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"github.com/tetratelabs/wazero/experimental/sys"
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)
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// toOsOpenFlag converts the input to the flag parameter of os.OpenFile
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func toOsOpenFlag(oflag sys.Oflag) (flag int) {
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// First flags are exclusive
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switch oflag & (sys.O_RDONLY | sys.O_RDWR | sys.O_WRONLY) {
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case sys.O_RDONLY:
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flag |= os.O_RDONLY
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case sys.O_RDWR:
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flag |= os.O_RDWR
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case sys.O_WRONLY:
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flag |= os.O_WRONLY
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}
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// Run down the flags defined in the os package
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if oflag&sys.O_APPEND != 0 {
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flag |= os.O_APPEND
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}
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if oflag&sys.O_CREAT != 0 {
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flag |= os.O_CREATE
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}
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if oflag&sys.O_EXCL != 0 {
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flag |= os.O_EXCL
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}
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if oflag&sys.O_SYNC != 0 {
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flag |= os.O_SYNC
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}
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if oflag&sys.O_TRUNC != 0 {
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flag |= os.O_TRUNC
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}
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return withSyscallOflag(oflag, flag)
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}
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