Subversion Repositories SvarDOS

/*

 * SVAROG386 INSTALL

 * COPYRIGHT (C) 2016 MATEUSZ VISTE

 */

#include <dos.h>

#include <stdio.h>   /* printf() and friends */

#include <stdlib.h>  /* system() */

#include <string.h>  /* memcpy() */

#include <unistd.h>

#include "input.h"

#include "video.h"

#define COLOR_TITLEBAR 0x7000

#define COLOR_BODY 0x1700

#define COLOR_SELECT 0x7000

#define COLOR_SELECTCUR 0x1F00

/* reboot the computer */

static void reboot(void) {

  void ((far *bootroutine)()) = (void (far *)()) 0xFFFF0000L;

  int far *rstaddr = (int far *)0x00400072L; /* BIOS boot flag is at 0040:0072 */

  *rstaddr = 0x1234; /* 0x1234 = warm boot, 0 = cold boot */

  (*bootroutine)(); /* jump to the BIOS reboot routine at FFFF:0000 */

}

static int menuselect(int ypos, int xpos, int height, char **list) {

  int i, offset = 0, res = 0, count, width = 0;

  /* count how many languages there is */

  for (count = 0; list[count] != NULL; count++) {

    int len = strlen(list[count]);

    if (len > width) width = len;

  }

  /* if xpos negative, means 'center out' */

  if (xpos < 0) xpos = 39 - (width >> 1);

  video_putchar(ypos, xpos+width+2, COLOR_SELECT, 0xBF);         /*       \ */

  video_putchar(ypos, xpos-1, COLOR_SELECT, 0xDA);               /*  /      */

  video_putchar(ypos+height-1, xpos-1, COLOR_SELECT, 0xC0);      /*  \      */

  video_putchar(ypos+height-1, xpos+width+2, COLOR_SELECT, 0xD9);/*      /  */

  video_putcharmulti(ypos, xpos, COLOR_SELECT, 0xC4, width + 2, 1);

  video_putcharmulti(ypos+height-1, xpos, COLOR_SELECT, 0xC4, width + 2, 1);

  video_putcharmulti(ypos+1, xpos-1, COLOR_SELECT, 0xB3, height - 2, 80);

  video_putcharmulti(ypos+1, xpos+width+2, COLOR_SELECT, 0xB3, height - 2, 80);

  for (;;) {

    int key;

    /* list of selectable items */

    for (i = 0; i < height - 2; i++) {

      if (i + offset == res) {

        video_putchar(ypos + 1 + i, xpos, COLOR_SELECTCUR, 16);

        video_putchar(ypos + 1 + i, xpos+width+1, COLOR_SELECTCUR, 17);

        video_movecursor(ypos + 1 + i, xpos);

        video_putstringfix(ypos + 1 + i, xpos+1, COLOR_SELECTCUR, list[i + offset], width);

      } else if (i + offset < count) {

        video_putchar(ypos + 1 + i, xpos, COLOR_SELECT, ' ');

        video_putchar(ypos + 1 + i, xpos+width+1, COLOR_SELECT, ' ');

        video_putstringfix(ypos + 1 + i, xpos+1, COLOR_SELECT, list[i + offset], width);

      } else {

        video_putcharmulti(ypos + 1 + i, xpos, COLOR_SELECT, ' ', width+2, 1);

      }

    }

    key = input_getkey();

    if (key == 0x0D) { /* ENTER */

      return(res);

    } else if (key == 0x148) { /* up */

      if (res > 0) res--;

    } else if (key == 0x150) { /* down */

      if (res+1 < count) res++;

    } else if (key == 0x1B) {  /* ESC */

      return(-1);

    }

  }

}

static void newscreen(void) {

  int x;

  for (x = 0; x < 80; x++) video_putchar(0, x, COLOR_TITLEBAR, ' ');

  video_clear(COLOR_BODY, 80);

  video_putstring(0, 29, COLOR_TITLEBAR, "SVAROG386 INSTALLATION");

}

static int selectlang(char *lang) {

  int choice;

  char *code;

  char *langlist[] = {

    "English\0EN",

    "French\0FR",

    "German\0DE",

    "Italian\0IT",

    "Polish\0PL",

    "Russian\0RU",

    "Slovenian\0SL",

    "Spanish\0ES",

    "Turkish\0TR",

    NULL

  };

  newscreen();

  video_putstring(3, 30, COLOR_BODY, "Welcome to Svarog386");

  video_putstring(4, 30, COLOR_BODY, "====================");

  video_putstring(6, 2, COLOR_BODY, "Svarog386 is an operating system based on the FreeDOS kernel. It targets");

  video_putstring(7, 2, COLOR_BODY, "386+ computers and comes with a variety of third-party applications. Before");

  video_putstring(8, 2, COLOR_BODY, "we get to serious business, please select your preferred language from the");

  video_putstring(9, 2, COLOR_BODY, "list below, and press the ENTER key:");

  choice = menuselect(11, -1, 12, langlist);

  if (choice < 0) return(-1);

  /* write short language code into lang */

  for (code = langlist[choice]; *code != 0; code++);

  memcpy(lang, code + 1, 2);

  lang[2] = 0;

  return(0);

}

/* returns 0 if installation must proceed, non-zero otherwise */

static int welcomescreen(void) {

  char *choice[] = {"Install Svarog386 to disk", "Quit to DOS", NULL};

  newscreen();

  video_putstring(4, 1, COLOR_BODY, "You are about to install Svarog386, a free, MSDOS-compatible operating system");

  video_putstring(5, 1, COLOR_BODY, "based on the FreeDOS kernel.");

  video_putstring(7, 1, COLOR_BODY, "WARNING: If your PC has another operating system installed, this other system");

  video_putstring(8, 1, COLOR_BODY, "         might be unable to boot once Svarog386 is installed.");

  return(menuselect(14, -1, 4, choice));

}

static int testdrive(int drv) {

  union REGS r;

  /* try to switch to new drive */

  r.h.ah = 0x0E;

  r.h.dl = drv;

  int86(0x21, &r, &r);

  /* has it worked? if yes, then the drive is valid */

  r.h.ah = 0x19;

  int86(0x21, &r, &r);

  if (r.h.al == drv) return(0);

  return(-1);

}

/* returns total disk space of drive drv (in MiB, max 2048), or -1 if drive invalid

 * also sets emptyflag to 1 if drive is empty, or to 0 otherwise */

static int disksize(int drv, int *emptyflag) {

  long res;

  union REGS r;

  r.h.ah = 0x36; /* DOS 2+ get free disk space */

  r.h.dl = drv;

  int86(0x21, &r, &r);

  if (r.x.ax == 0xffffu) return(-1); /* AX set to FFFFh if drive invalid */

  res = r.x.ax;

  res *= r.x.bx;

  res *= r.x.cx;

  res >>= 20; /* bytes to MiB */

  if (r.x.dx != r.x.bx) { /* DX is total number of clusters, while BX is only free clusters */

    *emptyflag = 0;

  } else {

    *emptyflag = 1;

  }

  return(res);

}

static int preparedrive(void) {

  int driveexists;

  int selecteddrive = 3; /* hardcoded to 'C:' */

  int ds, emptydriveflag;

  for (;;) {

    newscreen();

    driveexists = testdrive(selecteddrive);

    if (driveexists != 0) {

      char *list[] = { "Run the FDISK partitionning tool", "Quit to DOS", NULL};

      video_putstring(4, 2, COLOR_BODY, "ERROR: Drive C: could not be found. Perhaps your hard disk needs to be");

      video_putstring(5, 2, COLOR_BODY, "       partitionned first. Please create at least one partition on your");

      video_putstring(6, 2, COLOR_BODY, "       hard disk, so Svarog386 can be installed on it. Note, that");

      video_putstring(7, 2, COLOR_BODY, "       Svarog386 requires at least 16 MiB of available disk space.");

      video_putstring(9, 2, COLOR_BODY, "You can use the FDISK partitioning tool for creating the required partition,");

      video_putstring(10, 2, COLOR_BODY, "or abort the installation and use any other partition manager of your choice.");

      if (menuselect(12, -1, 4, list) != 0) return(-1);

      video_clear(0x0700, 0);

      video_movecursor(0, 0);

      system("fdisk");

      newscreen();

      video_putstring(13, 10, COLOR_BODY, "Your computer will reboot now. Press any key.");

      reboot();

      return(-1);

    }

    /* if not formatted, propose to format it right away */

    ds = disksize(selecteddrive, &emptydriveflag);

    if (ds < 0) {

      char *list[] = { "Proceed with formatting", "Quit to DOS", NULL};

      video_putstring(7, 2, COLOR_BODY, "ERROR: Drive C: seems to be unformated.");

      video_putstring(8, 2, COLOR_BODY, "       Do you wish to format it?");

      if (menuselect(12, -1, 4, list) != 0) return(-1);

      video_clear(0x0700, 0);

      video_movecursor(0, 0);

      system("FORMAT /Q C:");

      continue;

    }

    /* check total space */

    if (ds < 16) {

      video_putstring(9, 2, COLOR_BODY, "ERROR: Drive C: is not big enough! Svarog386 requires a disk of at least 16 MiB.");

      video_putstring(11, 2, COLOR_BODY, "Press any key to return to DOS.");

      input_getkey();

      return(-1);

    }

    /* is the disk empty? */

    if (emptydriveflag != 0) {

      char *list[] = { "Proceed with formatting", "Quit to DOS", NULL};

      video_putstring(7, 2, COLOR_BODY, "ERROR: Drive C: is not empty. Svarog386 must be installed on an empty disk.");

      video_putstring(8, 2, COLOR_BODY, "       You can format the disk now, to make it empty. Note however, that");

      video_putstring(9, 2, COLOR_BODY, "       this will ERASE ALL CURRENT DATA on your disk.");

      if (menuselect(12, -1, 4, list) != 0) return(-1);

      video_clear(0x0700, 0);

      video_movecursor(0, 0);

      system("FORMAT /Q C:");

      continue;

    } else {

      /* final confirmation */

      char *list[] = { "Install Svarog386", "Quit to DOS", NULL};

      video_putstring(8, 2, COLOR_BODY, "The installation of Svarog386 to your C: disk is about to begin.");

      if (menuselect(10, -1, 4, list) != 0) return(-1);

      system("SYS A: C:");

      return(0);

    }

  }

}

static void finalreboot(void) {

  newscreen();

  video_putstring(10, 2, COLOR_BODY, "Svarog386 installation is over. Please remove the");

  video_putstring(10, 2, COLOR_BODY, "installation diskette and/or CD from the drive.");

  video_putstring(13, 2, COLOR_BODY, "Press any key to reboot...");

  input_getkey();

  reboot();

}

static void bootfilesgen(int targetdrv, char *lang) {

  char drv = 'A' + targetdrv - 1;

  char buff[128];

  FILE *fd;

  /*** AUTOEXEC.BAT ***/

  sprintf(buff, "%c:\\AUTOEXEC.BAT", drv);

  fd = fopen(buff, "wb");

  if (fd == NULL) return;

  fprintf(fd, "@ECHO OFF\r\n");

  fprintf(fd, "SET TEMP=%c:\\TEMP\r\n", drv);

  fprintf(fd, "SET DOSDIR=%c:\\SYSTEM\\SVAROG.386\r\n", drv);

  fprintf(fd, "SET NLSPATH=%%DOSDIR%%\\NLS\r\n", drv);

  fprintf(fd, "SET LANG=%s\r\n", lang);

  fprintf(fd, "SET DIRCMD=/OGNE/P\r\n");

  fprintf(fd, "SET FDNPKG.CFG=%c:\\SYSTEM\\CFG\\FDNPKG.CFG\r\n");

  fprintf(fd, "SET WATTCP.CFG=%c:\\SYSTEM\\CFG\\WATTCP.CFG\r\n");

  fprintf(fd, "PATH %%DOSDIR%%\\BIN;%%DOSDIR%%\\LINKS\r\n");

  fprintf(fd, "PROMPT $P$G\r\n");

  fprintf(fd, "\r\n\r\n");

  fprintf(fd, "MODE CON CP PREPARE=((991) %c:\\SYSTEM\\SVAROG.386\\CPI\\EGA10.CPX\r\n");

  fprintf(fd, "MODE CON CP SELECT=991\r\n");

  fprintf(fd, "\r\n");

  fprintf(fd, "SHSUCDX /d:FDCD0001\r\n");

  fclose(fd);

  /*** CONFIG.SYS ***/

  sprintf(buff, "%c:\\CONFIG.SYS", drv);

  fd = fopen(buff, "wb");

  if (fd == NULL) return;

  fprintf(fd, "DOS=UMB,HIGH\r\n");

  fprintf(fd, "FILES=50\r\n");

  fprintf(fd, "DEVICE=%c:\\SYSTEM\\SVAROG.386\\BIN\\HIMEM.EXE\r\n", drv);

  fprintf(fd, "SHELLHIGH=%c:\\SYSTEM\\SVAROG.386\\BIN\\COMMAND.COM /E:512", drv);

  fprintf(fd, "REM COUNTRY=001,437,%c:\\SYSTEM\\SVAROG.386\r\n", drv);

  fprintf(fd, "DEVICE=%c:\\SYSTEM\\SVAROG.386\\BIN\\CDROM.SYS /D:FDCD0001\r\n", drv);

  fclose(fd);

}

static void installpackages(void) {

  char *pkglist[] = {

    "APPEND",

    "ASSIGN",

    "ATTRIB",

    "CHKDSK",

    "CHOICE",

    "COMMAND",

    "COMP",

    "CPIDOS",

    "CTMOUSE",

    "DEBUG",

    "DEFRAG",

    "DELTREE",

    "DEVLOAD",

    "DISKCOMP",

    "DISKCOPY",

    "DISPLAY",

    "DOSFSCK",

    "EDIT",

    "EDLIN",

    "EXE2BIN",

    "FC",

    "FDAPM",

    "FDISK",

    "FDNPKG",

    "FIND",

    "FORMAT",

    "HELP",

    "HIMEMX",

    "KERNEL",

    "KEYB",

    "LABEL",

    "LBACACHE",

    "MEM",

    "MIRROR",

    "MODE",

    "MORE",

    "MOVE",

    "NANSI",

    "NLSFUNC",

    "PRINT",

    "RDISK",

    "RECOVER",

    "REPLACE",

    "SHARE",

    "SHSUCDX",

    "SORT",

    "SWSUBST",

    "TREE",

    "UNDELETE",

    "XCOPY",

    NULL

  };

  int i;

  newscreen();

  video_putstring(10, 2, COLOR_BODY, "Installing packages...");

  for (i = 0; pkglist[i] != NULL; i++) {

    char buff[32];

    sprintf(buff, "FDINST %s.ZIP > NULL");

    system(buff);

  }

}

int main(void) {

  char lang[4];

  int targetdrv;

  for (;;) { /* fake loop, it's here just to break out easily */

    if (selectlang(lang) < 0) break; /* welcome to svarog, select your language */

    /*selectkeyb();*/ /* if non-english, what keyb layout should we use? */

    if (welcomescreen() != 0) break; /* what svarog386 is, ask whether to run live dos or install */

    targetdrv = preparedrive(); /* what drive should we install to? check avail. space */

    if (targetdrv < 0) break;

    /*askaboutsources();*/ /* IF sources are available, ask if installing with them */

    installpackages();   /* install packages */

    bootfilesgen(targetdrv, lang); /* generate simple boot files */

    /*localcfg();*/ /* show local params (currency, etc), and propose to change them (based on localcfg) */

    /*netcfg();*/ /* basic networking config? */

    finalreboot(); /* remove the CD and reboot */

    break;

  }

  video_clear(0x0700, 0);

  video_movecursor(0, 0);

  return(0);

}