be more careful when checking if a file is an rrdfile

[rrdtool.git] / src / rrd_gfx.c

diff --git a/src/rrd_gfx.c b/src/rrd_gfx.c
index a241fc2..44f668b 100644 (file)
--- a/src/rrd_gfx.c
+++ b/src/rrd_gfx.c
@@ -7,9 +7,9 @@
 /* #define DEBUG */
 
 #ifdef DEBUG
-# define DPRINTF(x,...)  fprintf(stderr, x, ## __VA_ARGS__);
+# define DPRINTF(...)  fprintf(stderr, __VA_ARGS__);
 #else
-# define DPRINTF(x,...)
+# define DPRINTF(...)
 #endif
 #include "rrd_tool.h"
 #include <png.h>
@@ -1779,7 +1779,7 @@ static void eps_write_text(eps_state *state, gfx_node_t *node)
         if (ch > 255) {
             fputc('?', fp);
         } else if (ch >= 126 || ch < 32) {
-          fprintf(fp, "\\%03o", ch);
+          fprintf(fp, "\\%03o", (unsigned int)ch);
           lineLen += 3;
         } else {
           fputc(ch, fp);