Comtrol eCos - Manual (Page 534)

Chapter 38. TCP/IP Library Reference
inet
INET(3) System Library Functions Manual INET(3)
NAME
inet_addr, inet_aton, inet_lnaof, inet_makeaddr, inet_netof,
inet_network, inet_ntoa, inet_ntop, inet_pton - Internet address manipu-
lation routines
SYNOPSIS
#include < sys/socket.h>
#include < netinet/in.h>
#include < arpa/inet.h>
in_addr_t
inet_addr(const char *cp);
int
inet_aton(const char *cp, struct in_addr *addr);
in_addr_t
inet_lnaof(struct in_addr in);
struct in_addr
inet_makeaddr(unsigned long net, unsigned long lna);
in_addr_t
inet_netof(struct in_addr in);
in_addr_t
inet_network(const char *cp);
char *
inet_ntoa(struct in_addr in);
const char *
inet_ntop(int af, const void *src, char *dst, size_t size);
int
inet_pton(int af, const char *src, void *dst);
DESCRIPTION
The routines inet_aton(), inet_addr() and inet_network() interpret char-
acter strings representing numbers expressed in the Internet standard ‘.’
notation. The inet_pton() function converts a presentation format
address (that is, printable form as held in a character string) to net-
work format (usually a struct in_addr or some other internal binary rep-
resentation, in network byte order). It returns 1 if the address was
valid for the specified address family, or 0 if the address wasn’t
parseable in the specified address family, or -1 if some system error
occurred (in which case errno will have been set). This function is
presently valid for AF_INET and AF_INET6. The inet_aton() routine inter-
prets the specified character string as an Internet address, placing the
address into the structure provided. It returns 1 if the string was suc-
cessfully interpreted, or 0 if the string was invalid. The inet_addr()
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