1 files changed, 7 insertions, 4 deletions

diff --git a/cache.c b/cache.c
index aa97ae1..9f02cf5 100644
--- a/cache.c
+++ b/cache.c
@@ -72,34 +72,37 @@ static int close_slot(struct cache_slot *slot)
         if (slot->cache_fd > 0) {
                 if (close(slot->cache_fd))
                         err = errno;
                 else
                         slot->cache_fd = -1;
         }
         return err;
 }
 
 /* Print the content of the active cache slot (but skip the key). */
 static int print_slot(struct cache_slot *slot)
 {
-        ssize_t i;
+        ssize_t i, j;
 
         i = lseek(slot->cache_fd, slot->keylen + 1, SEEK_SET);
         if (i != slot->keylen + 1)
                 return errno;
 
-        while((i = xread(slot->cache_fd, slot->buf, sizeof(slot->buf))) > 0)
-                i = xwrite(STDOUT_FILENO, slot->buf, i);
+        do {
+                i = j = xread(slot->cache_fd, slot->buf, sizeof(slot->buf));
+                if (i > 0)
+                        j = xwrite(STDOUT_FILENO, slot->buf, i);
+        } while (i > 0 && j == i);
 
-        if (i < 0)
+        if (i < 0 || j != i)
                 return errno;
         else
                 return 0;
 }
 
 /* Check if the slot has expired */
 static int is_expired(struct cache_slot *slot)
 {
         if (slot->ttl < 0)
                 return 0;
         else
                 return slot->cache_st.st_mtime + slot->ttl*60 < time(NULL);