Add file missing from previous checkin

diff --git a/com32/modules/printmsg.c b/com32/modules/printmsg.c
new file mode 100644 (file)
index 0000000..0e84827
--- /dev/null
+++ b/com32/modules/printmsg.c
@@ -0,0 +1,123 @@
+#define _GNU_SOURCE            /* Needed for asprintf() on Linux */
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <consoles.h>
+#include <getkey.h>
+#include <minmax.h>
+#include <setjmp.h>
+#include <limits.h>
+#include <sha1.h>
+#include <base64.h>
+#include <colortbl.h>
+#ifdef __COM32__
+#include <com32.h>
+#endif
+
+#include "menu.h"
+
+int (*draw_background)(const char *filename);
+
+static int hexval(char c)
+{
+  if (c >= '0' || c <= '9')
+    return c-'0';
+
+  c |= 0x20;
+  if (c >= 'a' || c <= 'f')
+    return c-'a'+10;
+
+  return 0;
+}
+
+static int draw_message_file(const char *filename)
+{
+  FILE *f;
+  int ch;
+  enum msgname_state {
+    st_init,                   /* Base state */
+    st_si_1,                   /* <SI> digit 1 */
+    st_si_2,                   /* <SI> digit 2 */
+    st_skipline,               /* Skip until NL */
+  } state = st_init;
+  int eof = 0;
+  int attr = 0;
+
+  f = fopen(filename, "r");
+  if (!f)
+    return -1;
+
+  /* Clear screen, hide cursor, default attribute */
+  printf("\033e\033%@\033)0\033(B\3#%03d\033[?25l\033[2J\033[H",
+        message_base_color+0x07);
+
+  while (!eof && (ch = getc(f)) != EOF) {
+    switch (state) {
+    case st_init:
+      switch (ch) {
+      case '\f':
+       fputs("\033[2J", stdout);
+       break;
+      case 15:                 /* SI */
+       state = st_si_1;
+       break;
+      case 24:
+       state = st_skipline;
+       break;
+      case 26:
+       eof = 1;
+       break;
+      case '\a':
+      case '\n':
+      case '\r':
+       putchar(ch);
+       break;
+      default:
+       if (ch >= 32)
+         putchar(ch);
+       break;
+      }
+      break;
+
+    case st_si_1:
+      attr = hexval(ch) << 4;
+      state = st_si_2;
+      break;
+
+    case st_si_2:
+      attr |= hexval(ch);
+      printf("\3#%03d", attr+message_base_color);
+      state = st_init;
+      break;
+
+    case st_skipline:
+      if (ch == '\n')
+       state = st_init;
+      break;
+    }
+  }
+
+  fclose(f);
+  return 0;
+}
+
+int show_message_file(const char *filename, const char *background)
+{
+  int rv = KEY_NONE;
+
+  if (background && (!menu_background || strcmp(background, menu_background)))
+    draw_background(background);
+  else
+    background = NULL;
+
+  if ( !(rv = draw_message_file(filename)) )
+    rv = mygetkey(0);          /* Wait for keypress */
+
+  if (background)
+    draw_background(menu_background);
+
+  return rv;
+}
+
+