FreeCalypso > hg > fc-pcsc-tools
view libutil/revnibbles.c @ 158:3698c8192d2d
libutil: hex digit functions factored out
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 26 Feb 2021 20:41:31 +0000 |
parents | f064dbcc5f41 |
children | 2557012666ea |
line wrap: on
line source
/* * This module implements some reversed-nibbles parsing functions. */ #include <sys/types.h> decode_reversed_nibbles(bytes, nbytes, dest) u_char *bytes; unsigned nbytes; char *dest; { u_char *sp; char *dp; unsigned n, c; sp = bytes; dp = dest; for (n = 0; n < nbytes; n++) { c = *sp & 0xF; *dp++ = encode_hex_digit(c); c = *sp >> 4; *dp++ = encode_hex_digit(c); sp++; } }