Add BIN2HEX and HEX2BIN macros (trivial).
They're generally useful for lots of stuff, but especially for converting to/from the compact 160 bit (20 byte) representation of SHA-1 hashes to the "hex" representation (same as 'sha1sum' output), which is 40 bytes long. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3213 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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@ -41,6 +41,10 @@
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
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#define BIN2HEX(b) ("0123456789abcdef"[b & 15])
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#define HEX2BIN(h) (('0' <= h && h <= '9') ? (h - '0') : \
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('a' <= h && h <= 'f') ? (h - 'a' + 10) : 0)
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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#ifdef CONFIG_TARGET_I386
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