mirror of https://github.com/pkg/sftp.git
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
// +build darwin dragonfly freebsd !android,linux netbsd openbsd solaris
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// +build cgo
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package sftp
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import (
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"fmt"
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"os"
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"os/user"
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"path"
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"syscall"
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"time"
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)
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func runLsStatt(dirent os.FileInfo, statt *syscall.Stat_t) string {
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// example from openssh sftp server:
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// crw-rw-rw- 1 root wheel 0 Jul 31 20:52 ttyvd
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// format:
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// {directory / char device / etc}{rwxrwxrwx} {number of links} owner group size month day [time (this year) | year (otherwise)] name
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typeword := runLsTypeWord(dirent)
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numLinks := statt.Nlink
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username := fmt.Sprintf("%d", statt.Uid)
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if usr, err := user.LookupId(username); err == nil {
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username = usr.Username
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}
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groupname := fmt.Sprintf("%d", statt.Gid)
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if grp, err := user.LookupGroupId(groupname); err == nil {
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groupname = grp.Name
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}
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mtime := dirent.ModTime()
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monthStr := mtime.Month().String()[0:3]
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day := mtime.Day()
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year := mtime.Year()
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now := time.Now()
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isOld := mtime.Before(now.Add(-time.Hour * 24 * 365 / 2))
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yearOrTime := fmt.Sprintf("%02d:%02d", mtime.Hour(), mtime.Minute())
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if isOld {
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yearOrTime = fmt.Sprintf("%d", year)
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}
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return fmt.Sprintf("%s %4d %-8s %-8s %8d %s %2d %5s %s", typeword,
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numLinks, username, groupname, dirent.Size(), monthStr, day,
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yearOrTime, dirent.Name())
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}
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// ls -l style output for a file, which is in the 'long output' section of a readdir response packet
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// this is a very simple (lazy) implementation, just enough to look almost like openssh in a few basic cases
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func runLs(dirname string, dirent os.FileInfo) string {
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dsys := dirent.Sys()
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if dsys == nil {
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} else if statt, ok := dsys.(*syscall.Stat_t); !ok {
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} else {
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return runLsStatt(dirent, statt)
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}
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return path.Join(dirname, dirent.Name())
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}
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