cache: use size_t for string lengths

Avoid integer truncation on 64-bit systems.

Coverity-id: 13864
Signed-off-by: John Keeping <john@keeping.me.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/cache.c b/cache.c
index b169d20..df1b4a3 100644
--- a/cache.c
+++ b/cache.c
@@ -24,7 +24,7 @@
 
 struct cache_slot {
         const char *key;
-        int keylen;
+        size_t keylen;
         int ttl;
         cache_fill_fn fn;
         int cache_fd;
@@ -44,7 +44,7 @@ struct cache_slot {
 static int open_slot(struct cache_slot *slot)
 {
         char *bufz;
-        int bufkeylen = -1;
+        ssize_t bufkeylen = -1;
 
         slot->cache_fd = open(slot->cache_name, O_RDONLY);
         if (slot->cache_fd == -1)