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-rw-r--r--service/src/util.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/service/src/util.h b/service/src/util.h
index d15fefa..4d2998d 100644
--- a/service/src/util.h
+++ b/service/src/util.h
@@ -11,10 +11,12 @@
#define MIN(x,y) ((x) > (y) ? (y) : (x))
#define MAX(x,y) ((x) < (y) ? (y) : (x))
+#define PRINTABLE(c) ((c) >= 32 ? (c) : ' ')
+
#define ERR(...) printf("ERR: " __VA_ARGS__)
-#define NFREE(p) do { free(p); p = NULL; } while (0)
-#define NFCLOSE(f) do { fclose(f); f = NULL; } while (0)
+#define FREE(p) do { free(p); p = NULL; } while (0)
+#define FCLOSE(f) do { if (f) fclose(f); f = NULL; } while (0)
#define MHASHLEN 40