diff options
| -rw-r--r-- | contrib/statvsfstat/.gitignore | 1 | ||||
| -rw-r--r-- | contrib/statvsfstat/statvsfstat.go | 53 |
2 files changed, 54 insertions, 0 deletions
diff --git a/contrib/statvsfstat/.gitignore b/contrib/statvsfstat/.gitignore new file mode 100644 index 0000000..7f17e5f --- /dev/null +++ b/contrib/statvsfstat/.gitignore @@ -0,0 +1 @@ +/statvsfstat diff --git a/contrib/statvsfstat/statvsfstat.go b/contrib/statvsfstat/statvsfstat.go new file mode 100644 index 0000000..e5159ce --- /dev/null +++ b/contrib/statvsfstat/statvsfstat.go @@ -0,0 +1,53 @@ +package main + +import ( + "flag" + "fmt" + "os" + + "golang.org/x/sys/unix" +) + +const ( + myName = "statvsfstat" +) + +func main() { + flag.Usage = func() { + fmt.Fprintf(os.Stderr, "Usage: %s PATH\n", myName) + fmt.Fprintf(os.Stderr, "Dump the stat and fstat information for PATH to the console, JSON format.\n") + os.Exit(1) + } + flag.Parse() + if flag.NArg() != 1 { + flag.Usage() + } + path := flag.Arg(0) + + var st unix.Stat_t + err := unix.Stat(path, &st) + if err != nil { + fmt.Fprintf(os.Stderr, "stat syscall returned error: %v\n", err) + os.Exit(4) + } + + fd, err := unix.Open(path, unix.O_RDONLY, 0) + if err != nil { + fmt.Fprintf(os.Stderr, "open syscall returned error: %v\n", err) + os.Exit(3) + } + var fst unix.Stat_t + err = unix.Fstat(fd, &fst) + if err != nil { + fmt.Fprintf(os.Stderr, "fstat syscall returned error: %v\n", err) + os.Exit(2) + } + + fmt.Printf("stat result: %#v\n", st) + fmt.Printf("fstat result: %#v\n", fst) + if st == fst { + fmt.Println("results are identical") + } else { + fmt.Println("results differ") + } +} |