[PATCH 3/3] BUG/MINOR: resolvers: handle a possible strdup() failure

[Ilya Shipitsin]

This defect was found by the coccinelle script "unchecked-strdup.cocci".
It can be backported to all supported branches.
---
 src/resolvers.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/resolvers.c b/src/resolvers.c
index f8f0c8edf..bff5c290d 100644
--- a/src/resolvers.c
+++ b/src/resolvers.c
@@ -3496,6 +3496,10 @@ static int resolvers_new(struct resolvers **resolvers, 
const char *id, const cha
        resolvers_setup_proxy(p);
        p->parent = r;
        p->id = strdup(id);
+       if (!p->id) {
+               err_code |= ERR_ALERT | ERR_FATAL;
+               goto out;
+       }
        p->conf.args.file = p->conf.file = copy_file_name(file);
        p->conf.args.line = p->conf.line = linenum;
        r->px = p;
@@ -3503,8 +3507,16 @@ static int resolvers_new(struct resolvers **resolvers, 
const char *id, const cha
        /* default values */
        LIST_APPEND(&sec_resolvers, &r->list);
        r->conf.file = strdup(file);
+       if (!r->conf.file) {
+               err_code |= ERR_ALERT | ERR_FATAL;
+               goto out;
+       }
        r->conf.line = linenum;
        r->id = strdup(id);
+       if (!r->id) {
+               err_code |= ERR_ALERT | ERR_FATAL;
+               goto out;
+       }
        r->query_ids = EB_ROOT;
        /* default maximum response size */
        r->accepted_payload_size = 512;
-- 
2.47.0