IP(2) IP(2)
NAME
eipconv, parseip, parseether, myipaddr, myetheraddr, maskip,
equivip - Internet protocol
SYNOPSIS
#include <u.h>
#include <libc.h>
#include <ip.h>
int eipconv(void *o, int f1, int f2, int f3, int chr)
int parseip(uchar *ipaddr, char *str)
int parseether(uchar *eaddr, char *str)
int myipaddr(uchar *ipaddr, char *net)
int myetheraddr(uchar *eaddr, char *net)
void maskip(uchar *from, uchar *mask, uchar *to)
int equivip(uchar *ipaddr1, uchar *ipaddr2)
DESCRIPTION
These routines are used by Internet Protocol (IP) programs
to manipulate IP and Ethernet addresses. IP addresses are
stored as a string of 4 unsigned chars, Ethernet addresses
as 6 unsigned chars. The string representation of IP
addresses is (up to) 4 decimal integers from 0 to 255 sepa-
rated by periods. The string representation of Ethernet
addresses is exactly 12 hexadecimal digits.
Eipconv is a print(2) formatter for Ethernet (verb E) and
Internet protocol (verb I) addresses.
Parseip converts a string pointed to by str to a 4-byte IP
address starting at ipaddr. Myipaddr reads the IP address
string from file /net/1/local and parses it into ipaddr.
Both routines return a negative number on errors.
Parseether converts a string pointed to by str to a 6 byte
Ethernet address starting at eaddr. Myetheraddr reads the
Ethernet address string from file net/1/stats and parses it
into eaddr. Both routines return a negative number on
errors.
Maskip places the bit-wise AND of the IP addresses pointed
to by its first two arguments into the buffer pointed to by
the third.
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IP(2) IP(2)
Equivip returns non-zero if the IP addresses pointed to by
its two arguments are equal.
SOURCE
/sys/src/libip
SEE ALSO
print(2)
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