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Use getaddrinfo to parse IP addresses and lookup names.

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OK bluhm
This commit is contained in:
florian 2024-08-27 06:03:20 +00:00
parent 596e189798
commit cd13aecf35
1 changed files with 11 additions and 10 deletions
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21
usr.sbin/yppoll/yppoll.c
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@ -1,4 +1,4 @@
/* $OpenBSD: yppoll.c,v 1.15 2015/01/16 06:40:22 deraadt Exp $ */
/* $OpenBSD: yppoll.c,v 1.16 2024/08/27 06:03:20 florian Exp $ */
/* $NetBSD: yppoll.c,v 1.5 1996/05/13 02:46:36 thorpej Exp $ */
/*
@ -65,7 +65,7 @@ get_remote_info(char *indomain, char *inmap, char *server, int *outorder,
struct sockaddr_in rsrv_sin;
int rsrv_sock;
CLIENT *client;
struct hostent *h;
struct addrinfo hints, *res;
int r;
bzero((char *)&rsrv_sin, sizeof rsrv_sin);
@ -73,14 +73,15 @@ get_remote_info(char *indomain, char *inmap, char *server, int *outorder,
rsrv_sin.sin_family = AF_INET;
rsrv_sock = RPC_ANYSOCK;
h = gethostbyname(server);
if (h == NULL) {
if (inet_aton(server, &rsrv_sin.sin_addr) == 0) {
fprintf(stderr, "unknown host %s\n", server);
exit(1);
}
} else
rsrv_sin.sin_addr.s_addr = *(u_int32_t *)h->h_addr;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET;
if (getaddrinfo(server, NULL, &hints, &res) != 0) {
fprintf(stderr, "unknown host %s\n", server);
exit(1);
}
rsrv_sin.sin_addr = ((struct sockaddr_in *)res->ai_addr)->sin_addr;
freeaddrinfo(res);
tv.tv_sec = 10;
tv.tv_usec = 0;