From 734b530f3797d6d11dc3ab996a889482cc88a8ab Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Fri, 16 Nov 2012 12:26:48 -0600 Subject: Add cut from Jason Kyungwan Han. --- lib/lib.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'lib/lib.c') diff --git a/lib/lib.c b/lib/lib.c index 18578815..49f2be5e 100644 --- a/lib/lib.c +++ b/lib/lib.c @@ -1099,3 +1099,22 @@ char* make_human_readable(unsigned long long size, unsigned long unit) } return NULL; //not reached } + +/* + * used to get the interger value. + */ +unsigned long get_int_value(const char *numstr, unsigned lowrange, unsigned highrange) +{ + unsigned long rvalue = 0; + char *ptr; + if(*numstr == '-' || *numstr == '+' || isspace(*numstr)) perror_exit("invalid number '%s'", numstr); + errno = 0; + rvalue = strtoul(numstr, &ptr, 10); + if(errno || numstr == ptr) perror_exit("invalid number '%s'", numstr); + if(*ptr) perror_exit("invalid number '%s'", numstr); + if(rvalue >= lowrange && rvalue <= highrange) return rvalue; + else { + perror_exit("invalid number '%s'", numstr); + return rvalue; //Not reachable; to avoid waring message. + } +} -- cgit v1.2.3