80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
/*
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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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#define SWAPINT(x) (((x)<<24) | (((uint)(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 *hogfile, *writefile;
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int len;
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char filename[13];
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char *buf;
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struct stat statbuf;
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int v = 0;
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if (argc > 1 && !strcmp(argv[1], "v")) {
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v = 1;
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argc--;
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argv++;
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}
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if (argc < 2) {
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printf("Usage: hogextract [v] hogfile [filename]\n"
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"extracts all the files in hogfile into the current directory\n"
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"Options:\n"
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" v View files, don't extract\n");
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exit(0);
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}
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hogfile = fopen(argv[1], "rb");
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stat(argv[1], &statbuf);
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printf("%i\n", (int)statbuf.st_size);
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buf = (char *)malloc(3);
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fread(buf, 3, 1, hogfile);
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printf("Extracting from: %s\n", argv[1]);
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free(buf);
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while(ftell(hogfile)<statbuf.st_size) {
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fread(filename, 13, 1, hogfile);
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fread(&len, 1, 4, hogfile);
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#ifdef WORDS_BIGENDIAN
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len = SWAPINT(len);
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#endif
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if (argc > 2 && strcmp(argv[2], filename))
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fseek(hogfile, len, SEEK_CUR);
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else {
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printf("Filename: %s \tLength: %i\n", filename, len);
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if (v)
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fseek(hogfile, len, SEEK_CUR);
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else {
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buf = (char *)malloc(len);
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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, 1, hogfile);
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writefile = fopen(filename, "wb");
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fwrite(buf, len, 1, writefile);
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fclose(writefile);
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free(buf);
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}
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}
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}
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}
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fclose(hogfile);
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return 0;
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}
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