Enhancements to text mode console clients

[palacios.git] / linux_usr / v3_cons_sc.c

diff --git a/linux_usr/v3_cons_sc.c b/linux_usr/v3_cons_sc.c
index 0986a92..9419804 100644 (file)
--- a/linux_usr/v3_cons_sc.c
+++ b/linux_usr/v3_cons_sc.c
@@ -117,7 +117,9 @@ static int handle_char_set(struct character_msg * msg) {
            return -1;
        }
 
+        wattron(console.win, COLOR_PAIR(msg->style));
        mvwaddch(console.win, msg->y, msg->x, c);
+        wattroff(console.win, COLOR_PAIR(msg->style));
 
     } else {
        //stdout text display
@@ -285,8 +287,8 @@ struct key_code {
 };
 
 static const struct key_code ascii_to_key_code[] = {             // ASCII Value Serves as Index
-    NO_KEY,         NO_KEY,         NO_KEY,         NO_KEY,      // 0x00 - 0x03
-    NO_KEY,         NO_KEY,         NO_KEY,         { 0x0E, 0 }, // 0x04 - 0x07
+    NO_KEY,         NO_KEY,         {0x50, 0},         {0x48, 0},      // 0x00 - 0x03
+    {0x4B, 0},         {0x4D, 0},         NO_KEY,         { 0x0E, 0 }, // 0x04 - 0x07
     { 0x0E, 0 },    { 0x0F, 0 },    { 0x1C, 0 },    NO_KEY,      // 0x08 - 0x0B
     NO_KEY,         { 0x1C, 0 },    NO_KEY,         NO_KEY,      // 0x0C - 0x0F
     NO_KEY,         NO_KEY,         NO_KEY,         NO_KEY,      // 0x10 - 0x13
@@ -371,7 +373,44 @@ int send_char_to_palacios_as_scancodes(int fd, unsigned char c)
     }
     return 0;
 }
-    
+
+
+#define MIN_TTY_COLS  80
+#define MIN_TTY_ROWS  25
+int check_terminal_size (void)
+{
+    unsigned short n_cols = 0;
+    unsigned short n_rows = 0;
+    struct winsize winsz; 
+
+    ioctl (fileno(stdin), TIOCGWINSZ, &winsz);
+    n_cols = winsz.ws_col;
+    n_rows = winsz.ws_row;
+
+    if (n_cols < MIN_TTY_COLS || n_rows < MIN_TTY_ROWS) {
+        printf ("Your window is not large enough.\n");
+        printf ("It must be at least %dx%d, but yours is %dx%d\n",
+                MIN_TTY_COLS, MIN_TTY_ROWS, n_cols, n_rows);
+    return (-1);
+    }
+
+    /* SUCCESS */
+    return (0);
+}
+
+
+
+static void
+init_colors (void)
+{
+    start_color();
+    int i;
+    for (i = 0; i < 0x100; i++) {
+        init_pair(i, i & 0xf, (i >> 4) & 0xf);
+    }
+}
+
+
 int main(int argc, char* argv[]) {
     int vm_fd;
     int cons_fd;
@@ -381,10 +420,16 @@ int main(int argc, char* argv[]) {
     use_curses = 1;
 
     if (argc < 2) {
-       printf("Usage: ./v3_cons_sc <vm_device>\n");
+       printf("usage: v3_cons_sc <vm_device>\n");
        return -1;
     }
 
+    /* Check for minimum Terminal size at start */
+    if (0 != check_terminal_size()) {
+        printf ("Error: terminal too small!\n");
+        return -1;
+    }
+
     vm_dev = argv[1];
 
     vm_fd = open(vm_dev, O_RDONLY);
@@ -423,6 +468,7 @@ int main(int argc, char* argv[]) {
        scrollok(console.win, 1);
 
        erase();
+    init_colors();
     }
 
     /*
@@ -450,13 +496,6 @@ int main(int argc, char* argv[]) {
 
     //ioctl(STDIN_FILENO, KDSKBMODE, K_RAW);
 
-    if (LINES<25 || COLS<80) { 
-       printf("Your window is not large enough.\nIt must be at least 80x25, but yours is %dx%d\n",COLS,LINES);
-       close(cons_fd);
-       exit(-1);
-    }
-    
-
     while (1) {
        int ret; 
        int bytes_read = 0;
@@ -484,32 +523,32 @@ int main(int argc, char* argv[]) {
            }
        }
 
-       if (FD_ISSET(STDIN_FILENO, &rset)) {
-           unsigned char key = getch();
-
-           if (key == '\\') { // ESC
-               break;
-           } else if (key == '`') {
-               unsigned char sc = 0x44; // F10
-               writeit(cons_fd,sc);
-               sc |= 0x80;
-               writeit(cons_fd,sc);
-            } else if (key == '~') {  // CTRL-C 
-                unsigned char sc;
-                sc = 0x1d;  // left ctrl down
-                writeit(cons_fd,sc);
-                sc = 0x2e; // c down
-               writeit(cons_fd,sc);
-               sc = 0x2e | 0x80;   // c up
-                writeit(cons_fd,sc);
-                sc = 0x1d | 0x80;   // left ctrl up
-                writeit(cons_fd,sc);
-            } else {
-               if (send_char_to_palacios_as_scancodes(cons_fd,key)) {
-                   printf("Error sending key to console\n");
-                   return -1;
-               }
-           }
+    if (FD_ISSET(STDIN_FILENO, &rset)) {
+        unsigned char key = getch();
+
+        if (key == '\\') { // ESC
+            break;
+        } else if (key == '`') {
+            unsigned char sc = 0x44; // F10
+            writeit(cons_fd,sc);
+            sc |= 0x80;
+            writeit(cons_fd,sc);
+        } else if (key == '~') {  // CTRL-C 
+            unsigned char sc;
+            sc = 0x1d;  // left ctrl down
+            writeit(cons_fd,sc);
+            sc = 0x2e; // c down
+            writeit(cons_fd,sc);
+            sc = 0x2e | 0x80;   // c up
+            writeit(cons_fd,sc);
+            sc = 0x1d | 0x80;   // left ctrl up
+            writeit(cons_fd,sc);
+        } else {
+            if (send_char_to_palacios_as_scancodes(cons_fd,key)) {
+                printf("Error sending key to console\n");
+                return -1;
+            }
+        }
            
        }
     }