func touch(filename string, nacc, nmod int64) (errcnt int) {
var st syscall.Stat_t
var ut syscall.Utimbuf
if e := syscall.Stat(filename, &st); e != 0 {
if e == syscall.ENOENT {
if *cflag {
errcnt++
return
}
var fd int
defer syscall.Close(fd)
if fd, e = syscall.Creat(filename, 0666); e != 0 {
fmt.Fprintf(os.Stderr, "touch: can not create %s\n", filename)
errcnt += 1
return
}
if e = syscall.Fstat(fd, &st); e != 0 {
fmt.Fprintf(os.Stderr, "touch: can't stat %s\n", filename)
errcnt += 1
return
}
} else {
fmt.Fprintf(os.Stderr, "touch: can't stat %s\n", filename)
errcnt += 1
return
}
}
if *aflag {
ut.Actime = nacc
} else {
ut.Actime = st.Atim.Sec
}
if *mflag {
ut.Modtime = nmod
} else {
ut.Modtime = st.Mtim.Sec
}
if nulltime {
if e := syscall.Utime(filename, nil); e != 0 {
fmt.Fprintf(os.Stderr, "touch: unable to touch %s", filename)
errcnt += 1
}
} else {
if e := syscall.Utime(filename, &ut); e != 0 {
fmt.Fprintf(os.Stderr, "touch: unable to touch %s", filename)
errcnt += 1
}
}
return
}
func main() {
flag.Parse()
if flag.NArg() < 1 {
usage()
}
for i := 0; i < flag.NArg(); i++ {
var name = flag.Arg(i)
var tb syscall.Utimbuf
tb.Actime = (int32)(*newTime)
tb.Modtime = (int32)(*newTime)
var e = syscall.Utime(name, &tb)
if (e != 0) && *create {
fmt.Fprintf(
os.Stderr,
"touch: cannot touch `%s'\n",
name)
os.Exit(1)
}
f, err := os.Open(name, os.O_CREAT, 0666)
if err != nil {
fmt.Fprintf(
os.Stderr,
"touch: cannot touch `%s': %s\n",
name,
err.String())
os.Exit(1)
}
f.Close()
e = syscall.Utime(name, &tb)
if e != 0 {
fmt.Fprintf(
os.Stderr,
"touch: cannot touch `%s'\n",
name)
os.Exit(1)
}
}
os.Exit(0)
}
