[PATCH 1/2] Fix hwaccess (again).

[Stefan Tauner]

Signed-off-by: Stefan Tauner 
---
 hwaccess.c |   18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/hwaccess.c b/hwaccess.c
index 598aa67..df0306f 100644
--- a/hwaccess.c
+++ b/hwaccess.c
@@ -26,10 +26,9 @@
 #error Unknown architecture
 #endif

-#define IS_BSD	(defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__OpenBSD__))
 #define IS_LINUX	(defined(__gnu_linux__) || defined(__linux__))
 #define IS_MACOSX	(defined(__APPLE__) && defined(__MACH__))
-#if !(IS_BSD || IS_LINUX || IS_MACOSX || defined(__DJGPP__) || defined(__LIBPAYLOAD__) || defined(__sun))
+#if !(IS_LINUX || IS_MACOSX || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__DJGPP__) || defined(__LIBPAYLOAD__) || defined(__sun))
 #error "Unknown operating system"
 #endif

@@ -47,7 +46,10 @@
 #include "flash.h"
 #include "hwaccess.h"

-#if IS_X86 && IS_BSD
+#define USE_IOPL	(IS_LINUX || IS_MACOSX || defined(__NetBSD__) || defined(__OpenBSD__))
+#define USE_DEV_IO	(defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__))
+
+#if IS_X86 && USE_DEV_IO
 int io_fd;
 #endif

@@ -71,9 +73,9 @@ static int release_io_perms(void *p)
 {
 #if defined (__sun)
    sysi86(SI86V86, V86SC_IOPL, 0);
-#elif IS_BSD
+#elif USE_DEV_IO
    close(io_fd);
-#elif IS_LINUX || IS_MACOSX
+#elif USE_IOPL
    iopl(0);
 #endif
    return 0;
@@ -86,14 +88,14 @@ int rget_io_perms(void)
 #if IS_X86 && !(defined(__DJGPP__) || defined(__LIBPAYLOAD__))
 #if defined (__sun)
    if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) != 0) {
-#elif IS_BSD
+#elif USE_DEV_IO
    if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
-#elif IS_LINUX || IS_MACOSX
+#elif USE_IOPL
    if (iopl(3) != 0) {
 #endif
    	msg_perr("ERROR: Could not get I/O privileges (%s).\n"
    		"You need to be root.\n", strerror(errno));
-#if defined (__OpenBSD__)
+#if defined(__NetBSD__) || defined (__OpenBSD__)
    	msg_perr("Please set securelevel=-1 in /etc/rc.securelevel and reboot, or reboot into \n");
    	msg_perr("single user mode.\n");
 #endif