FreeCalypso > hg > themwi-system-sw
changeset 2:b1c364729a93
libutil: add NANP number validation function
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 25 Jun 2022 18:58:00 -0800 |
| parents | dbc0a8677b69 |
| children | d712d518059e |
| files | libutil/Makefile libutil/nanp_valid.c |
| diffstat | 2 files changed, 23 insertions(+), 1 deletions(-) [+] |
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--- a/libutil/Makefile Sat Jun 25 18:33:29 2022 -0800 +++ b/libutil/Makefile Sat Jun 25 18:58:00 2022 -0800 @@ -1,6 +1,6 @@ CC= gcc CFLAGS= -O2 -OBJS= mncc_utils.o sockinit.o +OBJS= mncc_utils.o nanp_valid.o sockinit.o LIB= libutil.a all: ${LIB}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libutil/nanp_valid.c Sat Jun 25 18:58:00 2022 -0800 @@ -0,0 +1,22 @@ +/* + * Utility functions for NANP number validation. + */ + +is_nanp_valid_prefix(s) + char *s; +{ + /* validate NPA part */ + if (s[0] < '2') + return(0); + if (s[1] == '1' && s[2] == '1') + return(0); + if (s[1] == '9') + return(0); + /* validate exchange part */ + if (s[3] < '2') + return(0); + if (s[4] == '1' && s[5] == '1') + return(0); + /* all checks passed */ + return(1); +}