2 * Written 1999 Jan 29 by Josh Cogliati
3 * I grant this program to public domain.
5 * Modified for mvl by Bradley Bell, 2002
6 * All modifications under GPL, version 2 or later
11 #include <sys/types.h>
15 #define SWAPINT(x) (((x)<<24) | (((uint)(x)) >> 24) | (((x) &0x0000ff00) << 8) | (((x) & 0x00ff0000) >> 8))
20 main(int argc, char *argv[])
22 FILE *mvlfile, *writefile;
23 int i, nfiles, len[MAX_FILES];
24 char filename[MAX_FILES][13];
30 if (argc > 1 && !strcmp(argv[1], "v")) {
37 printf("Usage: mvlextract [v] mvlfile [filename]\n"
38 "extracts all the files in mvlfile into the current directory\n"
40 " v View files, don't extract\n");
43 mvlfile = fopen(argv[1], "r");
44 stat(argv[1], &statbuf);
45 printf("%i\n", (int)statbuf.st_size);
46 buf = (char *)malloc(4);
47 fread(buf, 4, 1, mvlfile);
48 fread(&nfiles, 4, 1, mvlfile);
49 printf("%d files\n", nfiles);
50 if (nfiles > MAX_FILES) // must be a bigendian mvl
53 nfiles = SWAPINT(nfiles);
54 printf("Extracting from: %s\n", argv[1]);
56 for (i = 0; i < nfiles; i++) {
57 fread(filename[i], 13, 1, mvlfile);
58 fread(&len[i], 4, 1, mvlfile);
60 len[i] = SWAPINT(len[i]);
61 if (argc == 2 || !strcmp(argv[2], filename[i]))
62 printf("Filename: %s \tLength: %i\n", filename[i], len[i]);
66 for (i = 0; i < nfiles; i++) {
67 if (argc > 2 && strcmp(argv[2], filename[i]))
68 fseek(mvlfile, len[i], SEEK_CUR);
70 if (ftell(mvlfile) > statbuf.st_size) {
71 printf("Error, end of file\n");
74 buf = (char *)malloc(len[i]);
76 printf("Unable to allocate memory\n");
78 fread(buf, len[i], 1, mvlfile);
79 writefile = fopen(filename[i], "w");
80 fwrite(buf, len[i], 1, writefile);