31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
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/* Copyright (c) 2015 Ryan Castellucci, All Rights Reserved */
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#ifndef __BRAINFLAYER_HEX_H_
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#define __BRAINFLAYER_HEX_H_
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static const unsigned char unhex_tab[80] = {
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0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xbb, 0xcc, 0xdd, 0xee,
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0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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static inline unsigned char *
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unhex(unsigned char *str, size_t str_sz,
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unsigned char *unhexed, size_t unhexed_sz) {
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int i, j;
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for (i = j = 0; i < str_sz && j < unhexed_sz; i += 2, ++j) {
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unhexed[j] = (unhex_tab[str[i+0]&0x4f] & 0xf0)|
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(unhex_tab[str[i+1]&0x4f] & 0x0f);
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}
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return unhexed;
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}
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unsigned char * hex(unsigned char *, size_t, unsigned char *, size_t);
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#endif /* __BRAINFLAYER_HEX_H_ */
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/* vim: set ts=2 sw=2 et ai si: */
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