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ping: fix ping when the kernel was built without INET6

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If the kernel was built without INET6, default to ICMP.  Or, if it was
built without INET, default to ICMPv6.

PR:		251725
Reported by:	jbeich
Reviewed by:	jbeich
Tested by:	jbeich
MFC with:	368045
This commit is contained in:
Alan Somers 2021-01-01 10:25:49 -07:00
parent 92bbfe1f0d
commit b586c66baf
1 changed files with 14 additions and 8 deletions
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22
sbin/ping/main.c
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@ -126,15 +126,21 @@ main(int argc, char *argv[])
else if (ipv4)
hints.ai_family = AF_INET;
else {
struct addrinfo *res;
if (!feature_present("inet6"))
hints.ai_family = AF_INET;
else if (!feature_present("inet"))
hints.ai_family = AF_INET6;
else {
struct addrinfo *res;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_RAW;
hints.ai_family = AF_UNSPEC;
getaddrinfo(argv[argc - 1], NULL, &hints, &res);
if (res != NULL) {
hints.ai_family = res[0].ai_family;
freeaddrinfo(res);
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_RAW;
hints.ai_family = AF_UNSPEC;
getaddrinfo(argv[argc - 1], NULL, &hints, &res);
if (res != NULL) {
hints.ai_family = res[0].ai_family;
freeaddrinfo(res);
}
}
}
#elif defined(INET)