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LIBRARY

SYNOPSIS

DESCRIPTION

The addr2ascii function is used to convert binary, network-format addresses into printable form. In addition to af, there are three other arguments. The addrp argument is a pointer to the network address to be converted. The len argument is the length of the address. The buf argument is an optional pointer to a caller-allocated buffer to hold the result; if a null pointer is passed, addr2ascii uses a statically-allocated buffer.

The ascii2addr function performs the inverse operation to addr2ascii. In addition to af, it takes two arguments, ascii and result. The ascii argument is a pointer to the string which is to be converted into binary. The result argument is a pointer to an appropriate network address structure for the specified family.

The following gives the appropriate structure to use for binary addresses in the specified family:

EXAMPLES

char *
inet_ntoa(struct in_addr addr)
{
return addr2ascii(AF_INET, &addr, sizeof addr, 0);
}

int
inet_aton(const char *ascii, struct in_addr *addr)
{
return (ascii2addr(AF_INET, ascii, addr)
== sizeof(*addr));
}

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