Differential D53588 Diff 165846 crypto/openssh/sshconnect.c

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crypto/openssh/sshconnect.c

Show First 20 Lines • Show All 452 Lines • ▼ Show 20 Lines	ssh_connect_direct(struct ssh ssh, const char host, struct addrinfo *aitop,
int oerrno, sock = -1, attempt;		int oerrno, sock = -1, attempt;
char ntop[NI_MAXHOST], strport[NI_MAXSERV];		char ntop[NI_MAXHOST], strport[NI_MAXSERV];
struct addrinfo *ai;		struct addrinfo *ai;

debug3_f("entering");		debug3_f("entering");
memset(ntop, 0, sizeof(ntop));		memset(ntop, 0, sizeof(ntop));
memset(strport, 0, sizeof(strport));		memset(strport, 0, sizeof(strport));

		int inet_supported = feature_present("inet");
		int inet6_supported = feature_present("inet6");
for (attempt = 0; attempt < connection_attempts; attempt++) {		for (attempt = 0; attempt < connection_attempts; attempt++) {
if (attempt > 0) {		if (attempt > 0) {
/* Sleep a moment before retrying. */		/* Sleep a moment before retrying. */
sleep(1);		sleep(1);
debug("Trying again...");		debug("Trying again...");
}		}
/*		/*
* Loop through addresses for this host, and try each one in		* Loop through addresses for this host, and try each one in
* sequence until the connection succeeds.		* sequence until the connection succeeds.
*/		*/
for (ai = aitop; ai; ai = ai->ai_next) {		for (ai = aitop; ai; ai = ai->ai_next) {
if (ai->ai_family != AF_INET &&		if (ai->ai_family != AF_INET &&
ai->ai_family != AF_INET6) {		ai->ai_family != AF_INET6) {
errno = EAFNOSUPPORT;		errno = EAFNOSUPPORT;
continue;		continue;
}		}
if (getnameinfo(ai->ai_addr, ai->ai_addrlen,		if (getnameinfo(ai->ai_addr, ai->ai_addrlen,
ntop, sizeof(ntop), strport, sizeof(strport),		ntop, sizeof(ntop), strport, sizeof(strport),
NI_NUMERICHOST\|NI_NUMERICSERV) != 0) {		NI_NUMERICHOST\|NI_NUMERICSERV) != 0) {
oerrno = errno;		oerrno = errno;
error_f("getnameinfo failed");		error_f("getnameinfo failed");
errno = oerrno;		errno = oerrno;
		continue;
		}
		if ((ai->ai_family == AF_INET && !inet_supported) \|\|
		(ai->ai_family == AF_INET6 && !inet6_supported)) {
		debug2_f("skipping address [%s]:%s: "
		"unsupported address family", ntop, strport);
		errno = EAFNOSUPPORT;
continue;		continue;
}		}
if (options.address_family != AF_UNSPEC &&		if (options.address_family != AF_UNSPEC &&
ai->ai_family != options.address_family) {		ai->ai_family != options.address_family) {
debug2_f("skipping address [%s]:%s: "		debug2_f("skipping address [%s]:%s: "
"wrong address family", ntop, strport);		"wrong address family", ntop, strport);
errno = EAFNOSUPPORT;		errno = EAFNOSUPPORT;
continue;		continue;
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