Add a driver to open up a new xterm window whenever console output is

needed. Derived from console/win32.c but we are not yet ready to merge
the code completely.

console/Makefile.in

@@ -9,7 +9,8 @@ C_SRCS = \
 	generic.c \
 	interface.c \
 	ncurses.c \
-	tty.c
+	tty.c \
+	xterm.c
 
 all: $(MODULE).o
 

console/generic.c

@@ -10,6 +10,7 @@
    driver, it should make sure to perserve the old values. */
 
 #include <stdio.h>
+
 #include "console.h"
 #include "config.h"
 #include "debug.h"

console/interface.c

@@ -6,10 +6,16 @@
    This could be done using a macro, but additional functionality
    may be provided here in the future. */
 
+#include <stdio.h>
+
 #include "windows.h"
 #include "console.h"
 #include "config.h"
 
+/* I did this without realizing that CONSOLE_* was actually used by
+   the Win32 console driver. I will definately have to rename these
+   functions to avoid the name clash... */
+
 void CONSOLE_Write(char out, int fg_color, int bg_color, int attribute)
 {
    if (driver.write)
@@ -22,6 +28,9 @@ void CONSOLE_Write(char out, int fg_color, int bg_color, int attribute)
 
 void CONSOLE_Init()
 {
+      /* Suitable defaults... */
+      driver.console_out = stdout;
+      driver.console_in = stdin;
       /* Eventually, this will be a command-line choice */
 #ifndef WINE_NCURSES
     TTY_Start(); 
@@ -30,6 +39,8 @@ void CONSOLE_Init()
 #endif
     GENERIC_Start();
 
+    /*XTERM_Start();*/
+
    if (driver.init)
       driver.init();
 }

console/ncurses.c

@@ -23,6 +23,8 @@
 #undef ERR /* Use ncurses's err() */
 #include <curses.h>
 
+SCREEN *ncurses_screen;
+
 void NCURSES_Start()
 {
    /* This should be the root driver so we can ignore anything
@@ -46,7 +48,9 @@ void NCURSES_Start()
 
 void NCURSES_Init()
 {
-   initscr();
+   ncurses_screen = newterm("xterm", driver.console_out,
+      driver.console_in);
+   set_term(ncurses_screen);
    cbreak();
    noecho();
    nonl();
@@ -58,7 +62,7 @@ void NCURSES_Init()
 void NCURSES_Write(char output, int fg, int bg, int attribute)
 {
    /* We can discard all extended information. */
-   addch(output);
+   waddch(stdscr, output);
 }
 
 void NCURSES_Close()
@@ -74,7 +78,7 @@ void NCURSES_GetKeystroke(char *scan, char *ascii)
    /* When it is detected, we will already have the right value 
       in scan and ascii, but we need to take this keystroke
       out of the buffer. */
-   getch();
+   wgetch(stdscr);
 }
 
 int NCURSES_CheckForKeystroke(char *scan, char *ascii)
@@ -82,7 +86,7 @@ int NCURSES_CheckForKeystroke(char *scan, char *ascii)
    /* We don't currently support scan codes here */
    /* FIXME */
    int temp;
-   temp = getch();
+   temp = wgetch(stdscr);
    if (temp == ERR)
    {
       return FALSE;
@@ -97,7 +101,7 @@ int NCURSES_CheckForKeystroke(char *scan, char *ascii)
 
 void NCURSES_MoveCursor(char row, char col)
 {
-   move(row, col);
+   wmove(stdscr, row, col);
 }
 
 void NCURSES_GetCursorPosition(char *row, char *col)
@@ -114,7 +118,7 @@ void NCURSES_GetCharacterAtCursor(char *ch, int *fg_color, int
    *bg_color, int *attribute)
 {
    /* We will eventually have to convert the color data */
-   *ch = (char) inch();
+   *ch = (char) winch(stdscr);
    *fg_color = 0;
    *bg_color = 0;
    *attribute = 0;
@@ -122,12 +126,12 @@ void NCURSES_GetCharacterAtCursor(char *ch, int *fg_color, int
 
 void NCURSES_Refresh()
 {
-   refresh();
+   wrefresh(stdscr);
 }
 
 void NCURSES_ClearScreen()
 {
-   erase();
+   werase(stdscr);
 }
 
 #endif /* WINE_NCURSES */

console/tty.c

@@ -28,14 +28,14 @@ void TTY_Start()
 void TTY_Write(char output, int fg, int bg, int attribute)
 {
    /* We can discard all extended information. */
-   printf("%c", output);
+   fprintf(driver.console_out, "%c", output);
 }
 
 void TTY_GetKeystroke(char *ch, char *scan)
 {
    /* All we have are character input things, nothing for extended */
    /* This is just the TTY driver, after all. We'll cope. */
-   _lread16(0, ch, 0);
+   *ch = fgetc(driver.console_in);
 }
 
 

console/xterm.c

@@ -0,0 +1,174 @@
+/* xterm.c */
+
+/* This "driver" is designed to go on top of an existing driver
+   to provide support for features only present if using an
+   xterm or compatible program for your console output. It should
+   inlcude such features as resizing, separation of output from the
+   standard wine console, and a configurable title bar for
+   Win32 console. */
+/* Right now, it doesn't have any "special" features */
+
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <termios.h>
+#include <errno.h>
+
+#include "windows.h"
+#include "console.h"
+#include "debug.h"
+
+static BOOL32 wine_create_console(FILE **master, FILE **slave, int *pid);
+static FILE *wine_openpty(FILE **master, FILE **slave, char *name,
+                        struct termios *term, struct winsize *winsize);
+
+/* The console -- I chose to keep the master and slave
+ * (UNIX) file descriptors around in case they are needed for
+ * ioctls later.  The pid is needed to destroy the xterm on close
+ */
+typedef struct _XTERM_CONSOLE {
+        FILE    *master;                 /* xterm side of pty */
+        FILE    *slave;                  /* wine side of pty */
+        int     pid;                    /* xterm's pid, -1 if no xterm */
+} XTERM_CONSOLE;
+
+static XTERM_CONSOLE xterm_console;
+
+CONSOLE_device chain;
+FILE *old_in, *old_out;
+
+void XTERM_Start()
+{
+   /* Here, this is a supplementary driver so we should remember to call
+      the chain. */
+   chain.init = driver.init;
+   driver.init = XTERM_Init;
+
+   chain.close = driver.close;
+   driver.close = XTERM_Close;
+}
+
+void XTERM_Init()
+{
+   wine_create_console(&xterm_console.master, &xterm_console.slave,
+      &xterm_console.pid);
+
+   old_in = driver.console_in;
+   driver.console_in = xterm_console.slave;
+
+   old_out = driver.console_out;
+   driver.console_out = xterm_console.slave;
+
+   /* Then call the chain... */
+   if (chain.init)
+      chain.init();
+}
+
+void XTERM_Close()
+{
+   /* Call the chain first... */
+   if (chain.close)
+      chain.close();
+
+   driver.console_in = old_in;
+   driver.console_out = old_out;
+
+   /* make sure a xterm exists to kill */
+   if (xterm_console.pid != -1) {
+      kill(xterm_console.pid, SIGTERM);
+   }
+}
+
+/**
+ *  It looks like the openpty that comes with glibc in RedHat 5.0
+ *  is buggy (second call returns what looks like a dup of 0 and 1
+ *  instead of a new pty), this is a generic replacement.
+ */
+/** Can't we determine this using autoconf?
+ */
+
+static FILE *wine_openpty(FILE **master, FILE **slave, char *name,
+                        struct termios *term, struct winsize *winsize)
+{
+        FILE *fdm, *fds;
+        char *ptr1, *ptr2;
+        char pts_name[512];
+
+        strcpy (pts_name, "/dev/ptyXY");
+        for (ptr1 = "pqrstuvwxyzPQRST"; *ptr1 != 0; ptr1++) {
+                pts_name[8] = *ptr1;
+                for (ptr2 = "0123456789abcdef"; *ptr2 != 0; ptr2++) {
+                        pts_name[9] = *ptr2;
+
+                        if ((fdm = fopen(pts_name, "r+")) == NULL) {
+                                if (errno == ENOENT)
+                                        return (FILE *) -1;
+                                else
+                                        continue;
+                        }
+                        pts_name[5] = 't';
+                        if ((fds = fopen(pts_name, "r+")) == NULL) {
+                                pts_name[5] = 'p';
+                                continue;
+                        }
+                        *master = fdm;
+                        *slave = fds;
+
+                        if (term != NULL)
+                                tcsetattr((*slave)->_fileno, TCSANOW, term);
+                        if (winsize != NULL)
+                                ioctl((*slave)->_fileno, TIOCSWINSZ, winsize);
+
+                        if (name != NULL)
+                                strcpy(name, pts_name);
+                        return fds;
+                }
+        }
+        return (FILE *) -1;
+}
+
+static BOOL32 wine_create_console(FILE **master, FILE **slave, int *pid)
+{
+        struct termios term;
+        char buf[1024];
+        char c = '\0';
+        int status = 0;
+        int i;
+
+        if (tcgetattr(0, &term) < 0) return FALSE;
+        term.c_lflag |= ICANON;
+        term.c_lflag &= ~ECHO;
+        if (wine_openpty(master, slave, NULL, &term, NULL) < 0)
+           return FALSE;
+
+        if ((*pid=fork()) == 0) {
+                tcsetattr((*slave)->_fileno, TCSADRAIN, &term);
+                sprintf(buf, "-Sxx%d", (*master)->_fileno);
+                execlp("xterm", "xterm", buf, NULL);
+                ERR(console, "error creating AllocConsole xterm\n");
+                exit(1);
+        }
+
+        /* most xterms like to print their window ID when used with -S;
+         * read it and continue before the user has a chance...
+         * NOTE: this is the reason we started xterm with ECHO off,
+         * we'll turn it back on below
+         */
+
+        for (i=0; c!='\n'; (status=fread(&c, 1, 1, *slave)), i++) {
+                if (status == -1 && c == '\0') {
+                                /* wait for xterm to be created */
+                        usleep(100);
+                }
+                if (i > 10000) {
+                        WARN(console, "can't read xterm WID\n");
+                        kill(*pid, SIGKILL);
+                        return FALSE;
+                }
+        }
+        term.c_lflag |= ECHO;
+        tcsetattr((*master)->_fileno, TCSADRAIN, &term);
+
+        return TRUE;
+}

include/console.h

@@ -7,6 +7,8 @@
 #ifndef CONSOLE_H
 #define CONSOLE_H
 
+#include <stdio.h>
+
 #include "config.h"
 
 typedef struct CONSOLE_DRIVER
@@ -36,6 +38,9 @@ typedef struct CONSOLE_DRIVER
    
    /* Other data */
    int norefresh;
+   FILE *console_out;
+   FILE *console_in;
+
 } CONSOLE_device;
 
 CONSOLE_device driver; /* Global driver struct */
@@ -87,4 +92,9 @@ void NCURSES_ClearScreen();
 
 #endif /* WINE_NCURSES */
 
+/* Xterm specific defines */
+void XTERM_Start();
+void XTERM_Close();
+void XTERM_Init();
+
 #endif /* CONSOLE_H */