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1 pmbaty 1
/*
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 * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>.
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 * It is copyright by its individual contributors, as recorded in the
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 * project's Git history.  See COPYING.txt at the top level for license
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 * terms and a link to the Git history.
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 */
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/*
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 * Written 1999 Jan 29 by Josh Cogliati
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 * Modified by Bradley Bell, 2002, 2003
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 * This program is licensed under the terms of the GPL, version 2 or later
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 */
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#ifdef HAVE_CONFIG_H
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#include <conf.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dirent.h>
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#define MAX_FILES 256
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#define SWAPINT(x)   (((x)<<24) | (((unsigned)(x)) >> 24) | (((x) &0x0000ff00) << 8) | (((x) & 0x00ff0000) >> 8))
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int
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main(int argc, char *argv[])
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{
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        FILE *mvlfile, *readfile;
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        DIR *dp;
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        struct dirent *ep;
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        int i, nfiles = 0, len[MAX_FILES], tmp;
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        char filename[MAX_FILES][13];
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        char *buf;
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        struct stat statbuf;
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        if (argc != 2) {
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                printf("Usage: mvlcreate mvlfile\n"
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                       "creates mvlfile using all the files in the current directory\n");
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                exit(0);
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        }
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        dp = opendir("./");
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        if (dp != NULL) {
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                while ((ep = readdir(dp))) {
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                        if (strlen(ep->d_name) > 12) {
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                                fprintf(stderr, "error: filename %s too long! (12 chars max!)\n", ep->d_name);
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                                return 1;
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                        }
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                        memset(filename[nfiles], 0, 13);
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                        strcpy(filename[nfiles], ep->d_name);
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                        stat(filename[nfiles], &statbuf);
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                        if(! S_ISDIR(statbuf.st_mode)) {
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                                len[nfiles] = (int)statbuf.st_size;
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                                printf("Filename: %s \tLength: %i\n", filename[nfiles], len[nfiles]);
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                                nfiles++;
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                        }
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                }
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        }
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        closedir(dp);
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        printf("Creating: %s\n", argv[1]);
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        mvlfile = fopen(argv[1], "wb");
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        buf = (char *)malloc(4);
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        strncpy(buf, "DMVL", 4);
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        fwrite(buf, 4, 1, mvlfile);
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        free(buf);
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        tmp = nfiles;
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#ifdef WORDS_BIGENDIAN
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        tmp = SWAPINT(tmp);
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#endif
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        fwrite(&tmp, 4, 1, mvlfile);
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        for (i = 0; i < nfiles; i++) {
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                fwrite(filename[i], 13, 1, mvlfile);
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                tmp = len[i];
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#ifdef WORDS_BIGENDIAN
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                tmp = SWAPINT(tmp);
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#endif
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                fwrite(&tmp, 4, 1, mvlfile);
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        }
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        for (i = 0; i < nfiles; i++) {
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                readfile = fopen(filename[i], "rb");
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                buf = (char *)malloc(len[i]);
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                if (buf == NULL) {
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                        printf("Unable to allocate memory\n");
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                } else {
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                        fread(buf, len[i], 1, readfile);
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                        fwrite(buf, len[i], 1, mvlfile);
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                        free(buf);
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                }
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                fclose(readfile);
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        }
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        fclose(mvlfile);
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        return 0;
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}