42 lines
819 B
C
42 lines
819 B
C
/* $NetBSD: decodenetnum.c,v 1.3 2006/06/11 19:34:10 kardel Exp $ */
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/*
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* decodenetnum - return a net number (this is crude, but careful)
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*/
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#include <sys/types.h>
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#include <ctype.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include "ntp_stdlib.h"
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int
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decodenetnum(
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const char *num,
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struct sockaddr_storage *netnum
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)
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{
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struct addrinfo hints, *ai = NULL;
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register int err, i;
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register const char *cp;
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char name[80];
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cp = num;
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if (*cp == '[') {
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cp++;
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for (i = 0; *cp != ']'; cp++, i++)
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name[i] = *cp;
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name[i] = '\0';
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num = name;
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}
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memset(&hints, 0, sizeof(struct addrinfo));
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hints.ai_flags = AI_NUMERICHOST;
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err = getaddrinfo(num, NULL, &hints, &ai);
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if (err != 0)
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return 0;
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memcpy(netnum, (struct sockaddr_storage *)ai->ai_addr, ai->ai_addrlen);
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freeaddrinfo(ai);
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return 1;
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}
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