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32 lines
857 B
C
32 lines
857 B
C
/* $Id: lzh.c,v 1.15 91/07/06 19:18:51 dhesi Exp $ */
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// Modified for in-memory decompression by Natalia Portillo, 2025
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#include "lzh.h" /* prototypes for encode(), lzh_decode() */
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#include <stdint.h>
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#include "ar.h"
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#include "lh5.h" /* mem_getc(), mem_putc(), in_ptr/in_left, out_ptr/out_left */
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extern int decoded; /* from huf.c */
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/*
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* lzh_decode now reads from in_buf/in_len and writes into out_buf/out_len
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* entirely in memory, via mem_getc()/mem_putc().
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*/
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int lzh_decode(void)
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{
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int n, i;
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uint8_t buffer[DICSIZ];
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/* Initialize the Huffman bit reader and sliding-window state */
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decode_start();
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/* Decode blocks of up to DICSIZ bytes until end‐of‐stream */
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while(!decoded)
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{
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n = decode(DICSIZ, buffer);
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for(i = 0; i < n; i++) { mem_putc(buffer[i]); }
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}
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return mem_error ? -1 : 0;
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}
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