* source/files : use 'flexible array' for init string in config struct

src/sources/files.c

@@ -32,7 +32,7 @@ struct _config {
   f2b_file_t *current;
   int flags;
   bool missingok;
-  char path[256];
+  char path[];
 };
 
 #include "source.c"
@@ -88,7 +88,7 @@ file_rotated(const cfg_t *cfg, f2b_file_t *file) {
     return true;
 
   if (stat(file->path, &st) != 0) {
-    log_msg(cfg, error, "file stat error: %s", strerror(errno));
+    log_msg(cfg, error, "stat(): %s -- %s", file->path, strerror(errno));
     return true;
   }
 
@@ -130,15 +130,21 @@ file_getline(const cfg_t *cfg, f2b_file_t *file, char *buf, size_t bufsize) {
 cfg_t *
 create(const char *init) {
   cfg_t *cfg = NULL;
-  if ((cfg = calloc(1, sizeof(cfg_t))) == NULL)
+
+  if (init == NULL) return NULL;
+
+  size_t ilen = strlen(init) + 1;
+  if (ilen <= 1) return NULL;
+
+  if ((cfg = calloc(1, sizeof(cfg_t) + ilen)) == NULL)
     return NULL;
-  cfg->logcb = &logcb_stub;
   cfg->flags |= MOD_TYPE_SOURCE;
   cfg->flags |= MOD_NEED_FILTER;
-  if (init != NULL && strlen(init) > 0) {
-    strlcpy(cfg->path, init, sizeof(cfg->path));
-    cfg->flags |= MOD_IS_READY;
-  }
+
+  cfg->logcb = &logcb_stub;
+  strlcpy(cfg->path, init, ilen);
+  cfg->flags |= MOD_IS_READY;
+
   return cfg;
 }