FreeCalypso > hg > freecalypso-tools
diff uptools/libcoding/alpha_addr.c @ 333:74d5e95ee84a
uptools/libcoding: alphabetic address handling implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 03 Feb 2018 23:53:20 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/uptools/libcoding/alpha_addr.c Sat Feb 03 23:53:20 2018 +0000 @@ -0,0 +1,21 @@ +/* + * This library module contains some bits that help working with + * alphabetic addresses. + */ + +#include <sys/types.h> + +u_char alpha_septets_to_digits[12] = {0, 2, 4, 6, 7, 9, 11, 13, 14, 16, 18, 20}; + +alpha_addr_valid(ndigits, sepp) + unsigned ndigits, *sepp; +{ + unsigned n; + + for (n = 1; n <= 11; n++) + if (alpha_septets_to_digits[n] == ndigits) { + *sepp = n; + return(1); + } + return(0); +}