mirror of https://github.com/Llewellynvdm/fzf.git
51 lines
908 B
Go
51 lines
908 B
Go
//go:build !windows
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package tui
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import (
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"os"
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"syscall"
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)
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var devPrefixes = [...]string{"/dev/pts/", "/dev/"}
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func ttyname() string {
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var stderr syscall.Stat_t
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if syscall.Fstat(2, &stderr) != nil {
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return ""
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}
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for _, prefix := range devPrefixes {
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files, err := os.ReadDir(prefix)
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if err != nil {
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continue
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}
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for _, file := range files {
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info, err := file.Info()
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if err != nil {
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continue
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}
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if stat, ok := info.Sys().(*syscall.Stat_t); ok && stat.Rdev == stderr.Rdev {
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return prefix + file.Name()
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}
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}
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}
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return ""
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}
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// TtyIn returns terminal device to be used as STDIN, falls back to os.Stdin
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func TtyIn() *os.File {
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in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
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if err != nil {
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tty := ttyname()
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if len(tty) > 0 {
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if in, err := os.OpenFile(tty, syscall.O_RDONLY, 0); err == nil {
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return in
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}
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}
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return os.Stdin
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}
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return in
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}
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