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James Flemer cleaned up the make_netmask() function to remove the static

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table.  Very nice.
This commit is contained in:
Robert James Kaes 2002-04-09 19:11:09 +00:00
parent b3a5b17b7d
commit 3c631c6e5c
2 changed files with 7 additions and 15 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2002-04-09 Robert James Kaes <rjkaes@flarenet.com>
* src/acl.c (make_netmask): James Flemer cleaned up the
make_netmask() function to remove the big static table. Much
nicer now.
* configure.ac: The configure script now doesn't include a check
for the malloc.h header if tinyproxy is being compiled on an
OpenBSD machine. I might actually just remove the malloc.h header

18
src/acl.c
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@ -1,4 +1,4 @@
/* $Id: acl.c,v 1.11 2001-11-22 00:31:10 rjkaes Exp $
/* $Id: acl.c,v 1.12 2002-04-09 19:11:09 rjkaes Exp $
*
* This system handles Access Control for use of this daemon. A list of
* domains, or IP addresses (including IP blocks) are stored in a list
@ -36,26 +36,14 @@ static struct acl_s *access_list = NULL;
/*
* Take a netmask number (between 0 and 32) and returns a network ordered
* value for comparison. Somebody please clean this up. :)
* value for comparison.
*/
static in_addr_t
make_netmask(int netmask_num)
{
static in_addr_t netmasks[] = {
0x00000000, 0x80000000, 0xc0000000, 0xe0000000,
0xf8000000, 0xfc000000, 0xfe000000, 0xff000000,
0xff800000, 0xffc00000, 0xffe00000, 0xfff00000,
0xfff00000, 0xfff80000, 0xfffc0000, 0xfffe0000,
0xffff0000, 0xffff8000, 0xffffc000, 0xffffe000,
0xfffff000, 0xfffff800, 0xfffffc00, 0xfffffe00,
0xffffff00, 0xffffff80, 0xffffffc0, 0xffffffe0,
0xfffffff0, 0xfffffff8, 0xfffffffc, 0xfffffffe,
0xffffffff
};
assert(netmask_num >= 0 && netmask_num <= 32);
return htonl(netmasks[netmask_num]);
return htonl(~((1 << (32 - netmask_num)) - 1));
}
/*