92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*
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exhal - HAL Laboratory decompression tool
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Usage:
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exhal romfile offset outfile
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Copyright (c) 2013 Devin Acker
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "compress.h"
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int main (int argc, char **argv) {
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printf("exhal - " __DATE__ " " __TIME__"\nby Devin Acker (Revenant)\n\n");
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if (argc != 4) {
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fprintf(stderr, "Usage:\n%s romfile offset outfile\n"
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"Example: %s kirbybowl.sfc 0x70000 test.bin\n\n"
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"offset can be in either decimal or hex.\n",
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argv[0], argv[0]);
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exit(-1);
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}
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FILE *infile, *outfile;
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// open ROM file for input
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infile = fopen(argv[1], "rb");
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if (!infile) {
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fprintf(stderr, "Error: unable to open %s\n", argv[1]);
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exit(-1);
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}
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// open target file for output
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outfile = fopen(argv[3], "wb");
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if (!outfile) {
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fprintf(stderr, "Error: unable to open %s\n", argv[3]);
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exit(-1);
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}
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size_t outputsize, fileoffset;
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uint8_t unpacked[DATA_SIZE] = {0};
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fileoffset = strtol(argv[2], NULL, 0);
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// decompress the file
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fseek(infile, 0, SEEK_END);
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if (fileoffset < ftell(infile)) {
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outputsize = unpack_from_file(infile, fileoffset, unpacked);
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} else {
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fprintf(stderr, "Error: Unable to decompress %s because an invalid offset was specified\n"
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" (must be between zero and 0x%X).\n", argv[1], ftell(infile));
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exit(-1);
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}
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if (outputsize) {
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// write the uncompressed data to the file
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fseek(outfile, 0, SEEK_SET);
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fwrite((const void*)unpacked, 1, outputsize, outfile);
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if (ferror(outfile)) {
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perror("Error writing output file");
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exit(-1);
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}
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printf("Uncompressed size: %zu bytes\n", outputsize);
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} else {
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fprintf(stderr, "Error: Unable to decompress %s because the output would have been larger than\n"
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" 64 kb. The input at 0x%X is likely not valid compressed data.\n", argv[1], fileoffset);
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}
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fclose(infile);
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fclose(outfile);
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}
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