diff options
Diffstat (limited to 'contrib/ntp/libntp/netof.c')
-rw-r--r-- | contrib/ntp/libntp/netof.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/contrib/ntp/libntp/netof.c b/contrib/ntp/libntp/netof.c deleted file mode 100644 index fd57568..0000000 --- a/contrib/ntp/libntp/netof.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * netof - return the net address part of an ip address in a sockaddr_storage structure - * (zero out host part) - */ -#include <stdio.h> - -#include "ntp_fp.h" -#include "ntp_stdlib.h" -#include "ntp.h" - -#define NUM_NETOF_BUFS 10 -static struct sockaddr_storage ssbuf[NUM_NETOF_BUFS]; -static int next_ssbuf = 0; - -struct sockaddr_storage* -netof( - struct sockaddr_storage* hostaddr - ) -{ - register u_int32 netnum; - struct sockaddr_storage *netaddr; - - netaddr = &ssbuf[next_ssbuf++]; - if (next_ssbuf == NUM_NETOF_BUFS) - next_ssbuf = 0; - memcpy(netaddr, hostaddr, sizeof(struct sockaddr_storage)); - - if(netaddr->ss_family == AF_INET) { - netnum = ((struct sockaddr_in*)netaddr)->sin_addr.s_addr; - - /* - * We live in a modern CIDR world where the basement nets, which - * used to be class A, are now probably associated with each - * host address. So, for class-A nets, all bits are significant. - */ - if(IN_CLASSC(netnum)) - netnum &= IN_CLASSC_NET; - else if (IN_CLASSB(netnum)) - netnum &= IN_CLASSB_NET; - ((struct sockaddr_in*)netaddr)->sin_addr.s_addr = netnum; - } - else if(netaddr->ss_family == AF_INET6) { - /* Here we put 0 at the local link address so we get net address */ - memset(&((struct sockaddr_in6*)netaddr)->sin6_addr.s6_addr[8], 0, 8*sizeof(u_char)); - } - - return netaddr; -} |