Re: Weird message.

[Stas Sergeev <stsp@aknet.ru>]

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Hello.

hector Colina wrote:
> Well, when starting dosemu, i get the message: "no
> console". What is it?
Try the updated getfd code (here is the patch)
and maybe that will help?

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diff -urN dosemu-1.1.5.5/src/plugin/kbd_unicode/Makefile dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/Makefile
--- dosemu-1.1.5.5/src/plugin/kbd_unicode/Makefile	Sun Jul 20 14:25:40 2003
+++ dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/Makefile	Sun Jul 20 14:31:19 2003
@@ -21,7 +21,7 @@
 
 CFILES:=dosemu_keys.c keynum.c
 
-CFILES := serv_xlat.c serv_backend.c serv_8042.c keymaps.c keyb_raw.c \
+CFILES := serv_xlat.c serv_backend.c serv_8042.c keymaps.c keyb_raw.c getfd.c \
           keyb_clients.c prestroke.c $(X_CFILES) keyb_none.c keyboard.c \
           $(CFILES)
 
diff -urN dosemu-1.1.5.5/src/plugin/kbd_unicode/getfd.c dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/getfd.c
--- dosemu-1.1.5.5/src/plugin/kbd_unicode/getfd.c	Thu Jan  1 03:00:00 1970
+++ dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/getfd.c	Sun Jul 20 14:38:13 2003
@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <linux/kd.h>
+#include <sys/ioctl.h>
+#include "getfd.h"
+
+/*
+ * getfd.c
+ *
+ * Get an fd for use with kbd/console ioctls.
+ * We try several things because opening /dev/console will fail
+ * if someone else used X (which does a chown on /dev/console).
+ */
+
+static int
+is_a_console(int fd) {
+    char arg;
+
+    arg = 0;
+    return (ioctl(fd, KDGKBTYPE, &arg) == 0
+	    && ((arg == KB_101) || (arg == KB_84)));
+}
+
+static int
+open_a_console(char *fnam) {
+    int fd;
+
+    fd = open(fnam, O_RDONLY);
+    if (fd < 0 && errno == EACCES)
+      fd = open(fnam, O_WRONLY);
+    if (fd < 0)
+      return -1;
+    if (!is_a_console(fd)) {
+      close(fd);
+      return -1;
+    }
+    return fd;
+}
+
+int getfd() {
+    int fd;
+
+    fd = open_a_console("/dev/tty");
+    if (fd >= 0)
+      return fd;
+
+    fd = open_a_console("/dev/tty0");
+    if (fd >= 0)
+      return fd;
+
+    fd = open_a_console("/dev/vc/0");
+    if (fd >= 0)
+      return fd;
+
+    fd = open_a_console("/dev/console");
+    if (fd >= 0)
+      return fd;
+
+    for (fd = 0; fd < 3; fd++)
+      if (is_a_console(fd))
+	return fd;
+
+    return -1;
+}
diff -urN dosemu-1.1.5.5/src/plugin/kbd_unicode/getfd.h dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/getfd.h
--- dosemu-1.1.5.5/src/plugin/kbd_unicode/getfd.h	Thu Jan  1 03:00:00 1970
+++ dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/getfd.h	Fri Oct 11 15:09:01 2002
@@ -0,0 +1 @@
+extern int getfd(void);
diff -urN dosemu-1.1.5.5/src/plugin/kbd_unicode/keymaps.c dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/keymaps.c
--- dosemu-1.1.5.5/src/plugin/kbd_unicode/keymaps.c	Sat Jun  7 12:10:12 2003
+++ dosemu-1.1.5.5-kbd/src/plugin/kbd_unicode/keymaps.c	Sun Jul 20 14:28:59 2003
@@ -20,10 +20,8 @@
 #include "keymaps.h"
 #include "keyb_clients.h"
 #include "keynum.h"
+#include "getfd.h"
 
-static int is_a_console(int);
-static int open_a_console(char *);
-static int getfd(void);
 static int read_kbd_table(struct keytable_entry *);
 
 
@@ -2099,43 +2097,6 @@
   {0}
 };
 
-
-/*
- * Look for a console. This is based on code in getfd.c from the kbd-0.99 package
- * (see loadkeys(1)).
- */
-
-static int is_a_console(int fd)
-{
-  char arg = 0;
-
-  return ioctl(fd, KDGKBTYPE, &arg) == 0 && (arg == KB_101 || arg == KB_84);
-}
-
-static int open_a_console(char *fnam)
-{
-  int fd;
-
-  fd = open(fnam, O_RDONLY);
-  if(fd < 0 && errno == EACCES) fd = open(fnam, O_WRONLY);
-  if(fd < 0 || ! is_a_console(fd)) return -1;
-
-  return fd;
-}
-
-static int getfd()
-{
-  int fd, i;
-  char *t[] = { "", "", "", "/dev/tty", "/dev/tty0", "/dev/console" };
-  
-  for(i = 0; i < sizeof t / sizeof *t; i++) {
-    if(!*t[i] && is_a_console(i)) return i;
-    if(*t[i] && (fd = open_a_console(t[i])) >= 0) return fd;
-  }
-
-  return -1;
-}
-
 #if 0
 static char* pretty_keysym(t_keysym d)
 {