Fixes TTY & resizing on Mac and Windows

Signed-off-by: Jason T. Greene <jason.greene@redhat.com>

2 files changed, 100 insertions, 1 deletions

diff --git a/pkg/signal/signal_unix.go b/pkg/signal/signal_unix.go
new file mode 100644
index 000000000..f35abddc1
--- /dev/null
+++ b/pkg/signal/signal_unix.go
@@ -0,0 +1,99 @@
+// +build aix darwin dragonfly freebsd netbsd openbsd solaris zos
+
+// Signal handling for Linux only.
+package signal
+
+import (
+	"os"
+	"syscall"
+)
+
+const (
+	sigrtmin = 34
+	sigrtmax = 64
+
+	SIGWINCH = syscall.SIGWINCH
+)
+
+// signalMap is a map of Linux signals.
+// These constants are sourced from the Linux version of golang.org/x/sys/unix
+// (I don't see much risk of this changing).
+// This should work as long as Podman only runs containers on Linux, which seems
+// a safe assumption for now.
+var signalMap = map[string]syscall.Signal{
+	"ABRT":     syscall.Signal(0x6),
+	"ALRM":     syscall.Signal(0xe),
+	"BUS":      syscall.Signal(0x7),
+	"CHLD":     syscall.Signal(0x11),
+	"CLD":      syscall.Signal(0x11),
+	"CONT":     syscall.Signal(0x12),
+	"FPE":      syscall.Signal(0x8),
+	"HUP":      syscall.Signal(0x1),
+	"ILL":      syscall.Signal(0x4),
+	"INT":      syscall.Signal(0x2),
+	"IO":       syscall.Signal(0x1d),
+	"IOT":      syscall.Signal(0x6),
+	"KILL":     syscall.Signal(0x9),
+	"PIPE":     syscall.Signal(0xd),
+	"POLL":     syscall.Signal(0x1d),
+	"PROF":     syscall.Signal(0x1b),
+	"PWR":      syscall.Signal(0x1e),
+	"QUIT":     syscall.Signal(0x3),
+	"SEGV":     syscall.Signal(0xb),
+	"STKFLT":   syscall.Signal(0x10),
+	"STOP":     syscall.Signal(0x13),
+	"SYS":      syscall.Signal(0x1f),
+	"TERM":     syscall.Signal(0xf),
+	"TRAP":     syscall.Signal(0x5),
+	"TSTP":     syscall.Signal(0x14),
+	"TTIN":     syscall.Signal(0x15),
+	"TTOU":     syscall.Signal(0x16),
+	"URG":      syscall.Signal(0x17),
+	"USR1":     syscall.Signal(0xa),
+	"USR2":     syscall.Signal(0xc),
+	"VTALRM":   syscall.Signal(0x1a),
+	"WINCH":    syscall.Signal(0x1c),
+	"XCPU":     syscall.Signal(0x18),
+	"XFSZ":     syscall.Signal(0x19),
+	"RTMIN":    sigrtmin,
+	"RTMIN+1":  sigrtmin + 1,
+	"RTMIN+2":  sigrtmin + 2,
+	"RTMIN+3":  sigrtmin + 3,
+	"RTMIN+4":  sigrtmin + 4,
+	"RTMIN+5":  sigrtmin + 5,
+	"RTMIN+6":  sigrtmin + 6,
+	"RTMIN+7":  sigrtmin + 7,
+	"RTMIN+8":  sigrtmin + 8,
+	"RTMIN+9":  sigrtmin + 9,
+	"RTMIN+10": sigrtmin + 10,
+	"RTMIN+11": sigrtmin + 11,
+	"RTMIN+12": sigrtmin + 12,
+	"RTMIN+13": sigrtmin + 13,
+	"RTMIN+14": sigrtmin + 14,
+	"RTMIN+15": sigrtmin + 15,
+	"RTMAX-14": sigrtmax - 14,
+	"RTMAX-13": sigrtmax - 13,
+	"RTMAX-12": sigrtmax - 12,
+	"RTMAX-11": sigrtmax - 11,
+	"RTMAX-10": sigrtmax - 10,
+	"RTMAX-9":  sigrtmax - 9,
+	"RTMAX-8":  sigrtmax - 8,
+	"RTMAX-7":  sigrtmax - 7,
+	"RTMAX-6":  sigrtmax - 6,
+	"RTMAX-5":  sigrtmax - 5,
+	"RTMAX-4":  sigrtmax - 4,
+	"RTMAX-3":  sigrtmax - 3,
+	"RTMAX-2":  sigrtmax - 2,
+	"RTMAX-1":  sigrtmax - 1,
+	"RTMAX":    sigrtmax,
+}
+
+// CatchAll catches all signals and relays them to the specified channel.
+func CatchAll(sigc chan os.Signal) {
+	panic("Unsupported on non-linux platforms")
+}
+
+// StopCatch stops catching the signals and closes the specified channel.
+func StopCatch(sigc chan os.Signal) {
+	panic("Unsupported on non-linux platforms")
+}
diff --git a/pkg/signal/signal_unsupported.go b/pkg/signal/signal_unsupported.go
index 9d1733c02..45946f142 100644
--- a/pkg/signal/signal_unsupported.go
+++ b/pkg/signal/signal_unsupported.go
@@ -1,4 +1,4 @@
-// +build !linux
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
 
 // Signal handling for Linux only.
 package signal