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path: root/usr.sbin/lpd/resolver.c
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Diffstat (limited to 'usr.sbin/lpd/resolver.c')
-rw-r--r--usr.sbin/lpd/resolver.c29
1 files changed, 12 insertions, 17 deletions
diff --git a/usr.sbin/lpd/resolver.c b/usr.sbin/lpd/resolver.c
index adcbb13c3b6..5b73e29b618 100644
--- a/usr.sbin/lpd/resolver.c
+++ b/usr.sbin/lpd/resolver.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: resolver.c,v 1.2 2018/09/05 17:32:56 eric Exp $ */
+/* $OpenBSD: resolver.c,v 1.3 2019/04/04 19:25:46 eric Exp $ */
/*
* Copyright (c) 2017-2018 Eric Faurot <eric@openbsd.org>
@@ -95,7 +95,7 @@ resolver_getaddrinfo(const char *hostname, const char *servname,
m_add_int(p_resolver, hints ? hints->ai_socktype : 0);
m_add_int(p_resolver, hints ? hints->ai_protocol : 0);
m_add_string(p_resolver, hostname);
- m_add_string(p_resolver, servname ? servname : "");
+ m_add_string(p_resolver, servname);
m_close(p_resolver);
}
@@ -150,8 +150,7 @@ resolver_dispatch_request(struct imsgproc *proc, struct imsg *imsg)
m_get_int(proc, &hints.ai_socktype);
m_get_int(proc, &hints.ai_protocol);
m_get_string(proc, &hostname);
- if (!m_is_eom(proc))
- m_get_string(proc, &servname);
+ m_get_string(proc, &servname);
m_end(proc);
s = NULL;
@@ -207,6 +206,8 @@ resolver_dispatch_request(struct imsgproc *proc, struct imsg *imsg)
m_create(proc, IMSG_GETNAMEINFO, reqid, 0, -1);
m_add_int(proc, EAI_SYSTEM);
m_add_int(proc, save_errno);
+ m_add_string(proc, NULL);
+ m_add_string(proc, NULL);
m_close(proc);
break;
@@ -254,7 +255,7 @@ resolver_dispatch_result(struct imsgproc *proc, struct imsg *imsg)
memmove(ai->ai_addr, &ss, ss.ss_len);
- if (cname[0]) {
+ if (cname) {
ai->ai_canonname = strdup(cname);
if (ai->ai_canonname == NULL) {
log_warn("%s: strdup", __func__);
@@ -281,15 +282,12 @@ resolver_dispatch_result(struct imsgproc *proc, struct imsg *imsg)
case IMSG_GETNAMEINFO:
m_get_int(proc, &gai_errno);
m_get_int(proc, &errno);
- if (gai_errno == 0) {
- m_get_string(proc, &host);
- m_get_string(proc, &serv);
- }
+ m_get_string(proc, &host);
+ m_get_string(proc, &serv);
m_end(proc);
SPLAY_REMOVE(reqtree, &reqs, req);
- req->cb_ni(req->arg, gai_errno, gai_errno ? NULL : host,
- gai_errno ? NULL : serv);
+ req->cb_ni(req->arg, gai_errno, host, serv);
free(req);
break;
}
@@ -319,8 +317,7 @@ resolver_getaddrinfo_cb(struct asr_result *ar, void *arg)
m_add_int(s->proc, ai->ai_socktype);
m_add_int(s->proc, ai->ai_protocol);
m_add_sockaddr(s->proc, ai->ai_addr);
- m_add_string(s->proc, ai->ai_canonname ?
- ai->ai_canonname : "");
+ m_add_string(s->proc, ai->ai_canonname);
m_close(s->proc);
}
@@ -341,10 +338,8 @@ resolver_getnameinfo_cb(struct asr_result *ar, void *arg)
m_create(s->proc, IMSG_GETNAMEINFO, s->reqid, 0, -1);
m_add_int(s->proc, ar->ar_gai_errno);
m_add_int(s->proc, ar->ar_errno);
- if (ar->ar_gai_errno == 0) {
- m_add_string(s->proc, s->host);
- m_add_string(s->proc, s->serv);
- }
+ m_add_string(s->proc, ar->ar_gai_errno ? NULL : s->host);
+ m_add_string(s->proc, ar->ar_gai_errno ? NULL : s->serv);
m_close(s->proc);
free(s->host);