strmap: set errno to ENOENT even if we return NULL.

[ccan] / ccan / strmap / strmap.c

diff --git a/ccan/strmap/strmap.c b/ccan/strmap/strmap.c
index 2b89fe0da66cdf8185b4096681175601a2a01fb0..872ca544c6aab1fa3b9d813534b74486cf77ec70 100644 (file)
--- a/ccan/strmap/strmap.c
+++ b/ccan/strmap/strmap.c
@@ -39,12 +39,13 @@ void *strmap_get_(const struct strmap *map, const char *member)
 {
        struct strmap *n;
 
-       /* Empty map? */
-       if (!map->u.n)
-               return NULL;
-       n = closest((struct strmap *)map, member);
-       if (streq(member, n->u.s))
-               return n->v;
+       /* Not empty map? */
+       if (map->u.n) {
+               n = closest((struct strmap *)map, member);
+               if (streq(member, n->u.s))
+                       return n->v;
+       }
+       errno = ENOENT;
        return NULL;
 }
 
@@ -129,8 +130,10 @@ char *strmap_del_(struct strmap *map, const char *member, void **valuep)
        u8 direction = 0; /* prevent bogus gcc warning. */
 
        /* Empty map? */
-       if (!map->u.n)
+       if (!map->u.n) {
+               errno = ENOENT;
                return NULL;
+       }
 
        /* Find closest, but keep track of parent. */
        n = map;
@@ -148,8 +151,10 @@ char *strmap_del_(struct strmap *map, const char *member, void **valuep)
        }
 
        /* Did we find it? */
-       if (!streq(member, n->u.s))
+       if (!streq(member, n->u.s)) {
+               errno = ENOENT;
                return NULL;
+       }
 
        ret = n->u.s;
        if (valuep)