details: http://hg.nginx.org/nginx/rev/a90f7812de35
branches:
changeset: 7276:a90f7812de35
user: Ruslan Ermilov <ru@nginx.com>
date: Wed May 23 10:41:38 2018 +0300
description:
Resolver: close UDP socket on error or incomplete send.

diffstat:

src/core/ngx_resolver.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r e15bf978447e -r a90f7812de35 src/core/ngx_resolver.c
--- a/src/core/ngx_resolver.c Wed May 23 10:41:29 2018 +0300
+++ b/src/core/ngx_resolver.c Wed May 23 10:41:38 2018 +0300
@@ -1300,15 +1300,22 @@ ngx_resolver_send_udp_query(ngx_resolver
n = ngx_send(rec->udp, query, qlen);

if (n == NGX_ERROR) {
- return NGX_ERROR;
+ goto failed;
}

if ((size_t) n != (size_t) qlen) {
ngx_log_error(NGX_LOG_CRIT, &rec->log, 0, "send() incomplete");
- return NGX_ERROR;
+ goto failed;
}

return NGX_OK;
+
+failed:
+
+ ngx_close_connection(rec->udp);
+ rec->udp = NULL;
+
+ return NGX_ERROR;
}


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