fixup! rrl: improve error messages

diff --git a/daemon/rrl/api.c b/daemon/rrl/api.c
index d9f1336811b0309c87fc84866e3b9af22a7fafcc..63ec5e60f66d5ff03214c07a6b971a20fdb8943d 100644 (file)
--- a/daemon/rrl/api.c
+++ b/daemon/rrl/api.c
@@ -34,7 +34,8 @@ void kr_rrl_init(const char *mmap_file, size_t capacity, uint32_t instant_limit,
 {
        int fd = the_rrl_fd = open(mmap_file, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
        if (fd == -1) {
-               kr_log_crit(SYSTEM, "Cannot open file %s containing shared rate-limiting data.", mmap_file);
+               kr_log_crit(SYSTEM, "Cannot open file %s containing shared rate-limiting data: %s\n",
+                               mmap_file, strerror(errno));
                abort();
        }
 
@@ -54,9 +55,9 @@ void kr_rrl_init(const char *mmap_file, size_t capacity, uint32_t instant_limit,
                .l_len    = 0 };
        if (fcntl(fd, F_SETLK, &fl) != -1) {
                kr_log_info(SYSTEM, "Initializing rate-limiting...\n");
-               ftruncate(fd, 0);
-               if (ftruncate(fd, size) == -1) {  // get all zeroed
-                       kr_log_crit(SYSTEM, "Cannot increase size of file %s containing shared rate-limiting data.", mmap_file);
+               if (ftruncate(fd, 0) == -1 || ftruncate(fd, size) == -1) {  // get all zeroed
+                       kr_log_crit(SYSTEM, "Cannot change size of file %s containing shared rate-limiting data: %s\n",
+                                       mmap_file, strerror(errno));
                        abort();
                }
                the_rrl = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);