59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
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* Copyright (c) 2013 Proofpoint, Inc. and its suppliers.
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* All rights reserved.
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the sendmail distribution.
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*
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*/
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#include <sm/gen.h>
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SM_RCSID("@(#)$Id: inet6_ntop.c,v 1.2 2013-11-22 20:51:43 ca Exp $")
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#if NETINET6
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# include <sm/conf.h>
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# include <sm/types.h>
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# include <sm/io.h>
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# include <sm/string.h>
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# include <netinet/in.h>
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/*
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** SM_INET6_NTOP -- convert IPv6 address to ASCII string (uncompressed)
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**
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** Parameters:
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** ipv6 -- IPv6 address
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** dst -- ASCII representation of address (output)
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** len -- length of dst
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**
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** Returns:
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** error: NULL
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*/
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char *
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sm_inet6_ntop(ipv6, dst, len)
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const void *ipv6;
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char *dst;
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size_t len;
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{
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SM_UINT16 *u16;
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int r;
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u16 = (SM_UINT16 *)ipv6;
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r = sm_snprintf(dst, len,
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"%x:%x:%x:%x:%x:%x:%x:%x"
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, htons(u16[0])
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, htons(u16[1])
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, htons(u16[2])
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, htons(u16[3])
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, htons(u16[4])
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, htons(u16[5])
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, htons(u16[6])
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, htons(u16[7])
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);
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if (r > 0)
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return dst;
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return NULL;
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}
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#endif /* NETINET6 */
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