From b71b77fa77daccbd7f0cf73ffc4fcd70282877f7 Mon Sep 17 00:00:00 2001
From: Michael Eischer <michael.eischer@fau.de>
Date: Mon, 8 Sep 2025 10:55:58 +0200
Subject: [PATCH] terminal: unexport tcgetpgrp, tcsetpgrp and getpgrp

---
 internal/terminal/background_unix.go | 4 ++--
 internal/terminal/foreground_unix.go | 8 ++++----
 internal/terminal/getpgrp_solaris.go | 2 +-
 internal/terminal/getpgrp_unix.go    | 2 +-
 internal/terminal/tcgetpgrp_linux.go | 2 +-
 internal/terminal/tcgetpgrp_unix.go  | 2 +-
 internal/terminal/tcsetpgrp_aix.go   | 2 +-
 internal/terminal/tcsetpgrp_unix.go  | 2 +-
 8 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/internal/terminal/background_unix.go b/internal/terminal/background_unix.go
index 316466ce9..9564c7cde 100644
--- a/internal/terminal/background_unix.go
+++ b/internal/terminal/background_unix.go
@@ -16,9 +16,9 @@ func IsProcessBackground(fd uintptr) bool {
 }
 
 func isProcessBackground(fd int) (bg bool, err error) {
-	pgid, err := Tcgetpgrp(fd)
+	pgid, err := tcgetpgrp(fd)
 	if err != nil {
 		return false, err
 	}
-	return pgid != Getpgrp(), nil
+	return pgid != getpgrp(), nil
 }
diff --git a/internal/terminal/foreground_unix.go b/internal/terminal/foreground_unix.go
index a3fb4d086..a4f15eccf 100644
--- a/internal/terminal/foreground_unix.go
+++ b/internal/terminal/foreground_unix.go
@@ -28,13 +28,13 @@ func startForeground(cmd *exec.Cmd) (bg func() error, err error) {
 	}
 
 	// only move child process to foreground if restic is in the foreground
-	prev, err := Tcgetpgrp(int(tty.Fd()))
+	prev, err := tcgetpgrp(int(tty.Fd()))
 	if err != nil {
 		_ = tty.Close()
 		return nil, err
 	}
 
-	self := Getpgrp()
+	self := getpgrp()
 	if prev != self {
 		debug.Log("restic is not controlling the tty; err = %v", err)
 		if err := tty.Close(); err != nil {
@@ -55,7 +55,7 @@ func startForeground(cmd *exec.Cmd) (bg func() error, err error) {
 	}
 
 	// move the command's process group into the foreground
-	err = Tcsetpgrp(int(tty.Fd()), cmd.Process.Pid)
+	err = tcsetpgrp(int(tty.Fd()), cmd.Process.Pid)
 	if err != nil {
 		_ = tty.Close()
 		return nil, err
@@ -66,7 +66,7 @@ func startForeground(cmd *exec.Cmd) (bg func() error, err error) {
 		signal.Reset(unix.SIGTTOU)
 
 		// reset the foreground process group
-		err = Tcsetpgrp(int(tty.Fd()), prev)
+		err = tcsetpgrp(int(tty.Fd()), prev)
 		if err != nil {
 			_ = tty.Close()
 			return err
diff --git a/internal/terminal/getpgrp_solaris.go b/internal/terminal/getpgrp_solaris.go
index e326079c3..71e02e7bf 100644
--- a/internal/terminal/getpgrp_solaris.go
+++ b/internal/terminal/getpgrp_solaris.go
@@ -2,7 +2,7 @@ package terminal
 
 import "golang.org/x/sys/unix"
 
-func Getpgrp() int {
+func getpgrp() int {
 	pid, _ := unix.Getpgrp()
 	return pid
 }
diff --git a/internal/terminal/getpgrp_unix.go b/internal/terminal/getpgrp_unix.go
index 759c28513..c9fe1470f 100644
--- a/internal/terminal/getpgrp_unix.go
+++ b/internal/terminal/getpgrp_unix.go
@@ -4,4 +4,4 @@ package terminal
 
 import "golang.org/x/sys/unix"
 
-func Getpgrp() int { return unix.Getpgrp() }
+func getpgrp() int { return unix.Getpgrp() }
diff --git a/internal/terminal/tcgetpgrp_linux.go b/internal/terminal/tcgetpgrp_linux.go
index bc7e18342..b51796ace 100644
--- a/internal/terminal/tcgetpgrp_linux.go
+++ b/internal/terminal/tcgetpgrp_linux.go
@@ -2,7 +2,7 @@ package terminal
 
 import "golang.org/x/sys/unix"
 
-func Tcgetpgrp(ttyfd int) (int, error) {
+func tcgetpgrp(ttyfd int) (int, error) {
 	// We need to use IoctlGetUint32 here, because pid_t is 32-bit even on
 	// 64-bit Linux. IoctlGetInt doesn't work on big-endian platforms:
 	// https://github.com/golang/go/issues/45585
diff --git a/internal/terminal/tcgetpgrp_unix.go b/internal/terminal/tcgetpgrp_unix.go
index 6fd7de0a5..c24bc513f 100644
--- a/internal/terminal/tcgetpgrp_unix.go
+++ b/internal/terminal/tcgetpgrp_unix.go
@@ -4,6 +4,6 @@ package terminal
 
 import "golang.org/x/sys/unix"
 
-func Tcgetpgrp(ttyfd int) (int, error) {
+func tcgetpgrp(ttyfd int) (int, error) {
 	return unix.IoctlGetInt(ttyfd, unix.TIOCGPGRP)
 }
diff --git a/internal/terminal/tcsetpgrp_aix.go b/internal/terminal/tcsetpgrp_aix.go
index 671b03a7a..f8e8b2972 100644
--- a/internal/terminal/tcsetpgrp_aix.go
+++ b/internal/terminal/tcsetpgrp_aix.go
@@ -2,7 +2,7 @@ package terminal
 
 import "golang.org/x/sys/unix"
 
-func Tcsetpgrp(fd int, pid int) error {
+func tcsetpgrp(fd int, pid int) error {
 	// The second argument to IoctlSetPointerInt has type int on AIX,
 	// but the constant overflows 64-bit int, hence the two-step cast.
 	req := uint(unix.TIOCSPGRP)
diff --git a/internal/terminal/tcsetpgrp_unix.go b/internal/terminal/tcsetpgrp_unix.go
index 524f5d05a..4a2c1a12e 100644
--- a/internal/terminal/tcsetpgrp_unix.go
+++ b/internal/terminal/tcsetpgrp_unix.go
@@ -4,6 +4,6 @@ package terminal
 
 import "golang.org/x/sys/unix"
 
-func Tcsetpgrp(fd int, pid int) error {
+func tcsetpgrp(fd int, pid int) error {
 	return unix.IoctlSetPointerInt(fd, unix.TIOCSPGRP, pid)
 }