On Sun, 11 Aug 2019 at 14:38, Andrew Bernard <andrew.bern...@gmail.com> wrote: > > Hello Durga, > > I think that's a strange way to write an IP address. > > If you do man 3 inet_addr the format for the dotted address is explained. As > stated in that man page: > > In all of the above forms, components of the dotted address can be specified > in decimal, octal (with a leading 0), or hexadecimal, with a leading 0X). > Addresses in any of these forms are collectively termed IPV4 numbers-and-dots > notation. The form that uses exactly four decimal numbers is referred to as > IPv4 dotted-decimal notation (or sometimes: IPv4 dotted-quad notation). > > An example is given: > > $ ./a.out 226.000.000.037 # Last byte is in octal > > So 037 is octal not decimal. > > Because 6 is less than 7 you can get away with it, but not for long with > other numerical values that exceed octal. I think its inviting trouble for > maintainers of your code. > > > Andrew > > > On 11/8/19 2:59 am, Durga Prasad Malyala wrote: > > I am curious what is the format of IP addresses in /etc/postfix/access. > i.e. will it understand 006.45.023.230 instead of the common 6.45.23.230 ?
well Andrew - I am interested in using a list from https://dshield.org/ipsascii.html they are providing a list but it is in the format 089.248.172.085 - notice the leading zeroes. - I am stripping out all data and only using the first column. Now instead of firing a script to truncate the leading zeroes within the octets - I am wondering if the IPs can be used directly by the postfix access file. Thanks/DP
