Subversion Repositories SvarDOS

/*

 * PKGINST - SvarDOS package installer

 * Copyright (C) 2015-2021 Mateusz Viste

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

 * IN THE SOFTWARE.

 */

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

#include <stdlib.h>   /* malloc() and friends */

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

#include "kprintf.h"

#include "libunzip.h"

#include "pkginst.h"

#include "pkgrem.h"

#include "version.h"

enum ACTIONTYPES {

  ACTION_INSTALL,

  ACTION_REMOVE,

  ACTION_HELP

};

static int showhelp(void) {

  printf("PKGINST ver " PVER " Copyright (C) " PDATE " Mateusz Viste\n"

         "\n"

         "PKGINST is the package installer for SvarDOS.\n"

         "\n"

         "Usage: PKGINST install package.zip\n"

         "       PKGINST remove package\n"

         "\n"

         "PKGINST is published under the MIT license. It uses a PKGINST.CFG configuration\n"

         "file located in the directory pointed by %%PKGCFG%%\n"

         );

  return(1);

}

static enum ACTIONTYPES parsearg(int argc, char **argv) {

  /* I expect exactly 2 arguments (ie argc == 3) */

  if (argc != 3) return(ACTION_HELP);

  /* look for valid actions */

  if (strcasecmp(argv[1], "install") == 0) {

    return(ACTION_INSTALL);

  } else if (strcasecmp(argv[1], "remove") == 0) {

    return(ACTION_REMOVE);

  } else {

    return(ACTION_HELP);

  }

}

static int pkginst(const char *file, int flags, const char *dosdir, const struct customdirs *dirlist) {

  char pkgname[32];

  int t, lastpathdelim = -1, u = 0;

  struct ziplist *zipfileidx;

  FILE *zipfilefd;

  for (t = 0; file[t] != 0; t++) {

    if ((file[t] == '/') || (file[t] == '\\')) lastpathdelim = t;

  }

  /* copy the filename into pkgname (without path elements) */

  for (t = lastpathdelim + 1; file[t] != 0; t++) pkgname[u++] = file[t];

  pkgname[u] = 0; /* terminate the string */

  /* truncate the file's extension (.zip) */

  for (t = u; t > 0; t--) {

    if (pkgname[t] == '.') {

      pkgname[t] = 0;

      break;

    }

  }

  /* prepare the zip file and install it */

  zipfileidx = pkginstall_preparepackage(pkgname, file, flags, &zipfilefd, dosdir, dirlist);

  if (zipfileidx != NULL) {

    int res = 0;

    if (pkginstall_installpackage(pkgname, dosdir, dirlist, zipfileidx, zipfilefd) != 0) res = 1;

    fclose(zipfilefd);

    return(res);

  } else {

    fclose(zipfilefd);

    return(1);

  }

}

int main(int argc, char **argv) {

  int res, flags;

  enum ACTIONTYPES action;

  const char *dosdir;

  struct customdirs *dirlist;

  action = parsearg(argc, argv);

  if (action == ACTION_HELP) return(showhelp());

  /* read the DOSDIR environment variable */

  dosdir = getenv("DOSDIR");

  if (dosdir == NULL) {

    kitten_puts(2, 2, "%DOSDIR% not set! You should make it point to the FreeDOS main directory.");

    kitten_puts(2, 3, "Example: SET DOSDIR=C:\\FDOS");

    return(-1);

  }

  /* load configuration */

  flags = 0;

  dirlist = NULL;

  if (loadconf(dosdir, &dirlist, &flags) != 0) return(5);

  switch (action) {

    case ACTION_INSTALL:

      res = pkginst(argv[2], flags, dosdir, dirlist);

      break;

    case ACTION_REMOVE:

      res = pkgrem(argv[2], dosdir);

      break;

    default:

      res = showhelp();

      break;

  }

  if (res != 0) return(1);

  return(0);

}