23a609086f
Ten years ago we had Steve Jobs, Johnny Cash, and Bob Hope. Now, we have no jobs, no cash, and no hope.
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
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exhal - HAL Laboratory decompression tool
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by Devin Acker
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Usage:
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exhal romfile offset outfile
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This code is released under the terms of the MIT license.
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See copying.txt for details.
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*/
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#include <stdio.h>
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#include "compress.h"
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int main (int argc, char **argv) {
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printf("exhal - %s %s\nby Devin Acker (Revenant)\n\n", __DATE__, __TIME__);
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if (argc != 4) {
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printf("Usage:\n%s romfile offset outfile\n", argv[0]);
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printf("Example: %s kirbybowl.sfc 0x70000 test.bin\n\n", argv[0]);
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printf("offset can be in either decimal or hex.\n");
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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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printf("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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printf("Error: unable to open %s\n", argv[1]);
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exit(-1);
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}
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size_t outputsize;
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uint32_t fileoffset;
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uint8_t unpacked[DATA_SIZE];
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uint8_t packed[DATA_SIZE];
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memset(packed, 0, DATA_SIZE);
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fileoffset = strtol(argv[2], NULL, 0);
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// read the file
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fseek(infile, fileoffset, SEEK_SET);
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fread(packed, sizeof(uint8_t), DATA_SIZE, infile);
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// compress the file
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outputsize = unpack(packed, unpacked);
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// write the uncompressed data to the file
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fseek(infile, 0, SEEK_SET);
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fwrite((const void*)unpacked, 1, outputsize, outfile);
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printf("\nUncompressed size: %d bytes\n", outputsize);
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fclose(infile);
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fclose(outfile);
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}
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