92cbb34085
hostname or a string of the form x.y.z.a git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@656 ec53bebd-3082-4978-b11e-865c3cabbd6b
43 lines
804 B
C
43 lines
804 B
C
#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id$");
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#include <netdb.h>
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#include "roken.h"
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/*
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* Get a verified name for `addr'.
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* If unable to find it in the DNS, return x.y.z.a
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*/
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void
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inaddr2str(struct in_addr addr, char *s, size_t len)
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{
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struct hostent *h;
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char *p;
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h = gethostbyaddr ((const char *)&addr, sizeof(addr), AF_INET);
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if (h) {
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h = gethostbyname (h->h_name);
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if(h)
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while ((p = *(h->h_addr_list)++))
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if (memcmp (p, &addr, h->h_length) == 0) {
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strncpy (s, h->h_name, len);
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s[len - 1] = '\0';
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return;
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}
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}
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strncpy (s, inet_ntoa (addr), len);
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s[len - 1] = '\0';
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return;
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}
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