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a63199832a
This adds some extra inany helpers for comparing an inany address to addresses of a specific family (including special addresses), and building an inany from an IPv4 address (either statically or at runtime). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright Red Hat
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* Author: David Gibson <david@gibson.dropbear.id.au>
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*
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* inany.c - Types and helpers for handling addresses which could be
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* IPv6 or IPv4 (encoded as IPv4-mapped IPv6 addresses)
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*/
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#include <stdlib.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "util.h"
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#include "ip.h"
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#include "siphash.h"
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#include "inany.h"
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const union inany_addr inany_loopback4 = INANY_INIT4(IN4ADDR_LOOPBACK_INIT);
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const union inany_addr inany_any4 = INANY_INIT4(IN4ADDR_ANY_INIT);
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/** inany_ntop - Convert an IPv[46] address to text format
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* @src: IPv[46] address
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* @dst: output buffer, minimum INANY_ADDRSTRLEN bytes
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* @size: size of buffer at @dst
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*
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* Return: On success, a non-null pointer to @dst, NULL on failure
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*/
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const char *inany_ntop(const union inany_addr *src, char *dst, socklen_t size)
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{
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const struct in_addr *v4 = inany_v4(src);
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if (v4)
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return inet_ntop(AF_INET, v4, dst, size);
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return inet_ntop(AF_INET6, &src->a6, dst, size);
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}
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