fixed maxlength for sprintf_alloc 50 was not enough ... 1024+strlen(fmt) is much...

makes imginfo work even when there are long image paths.

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1385 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/rrd_info.c b/program/src/rrd_info.c
index cf90e0e2b8cbe1115f0589f0029b95cb65c0b9fc..a48df516a3b780aa5d21e2c1d7f44fa315344317 100644 (file)
--- a/program/src/rrd_info.c
+++ b/program/src/rrd_info.c
@@ -20,18 +20,14 @@ char     *sprintf_alloc(
     char *fmt,
     ...)
 {
-#ifdef HAVE_VSNPRINTF
-    int       maxlen = 50;
-#else
-    int       maxlen = 1000;
-#endif
+    int       maxlen = 1024 + strlen(fmt);
     char     *str = NULL;
     va_list   argp;
-    str = malloc(sizeof(char) * (strlen(fmt) + maxlen));
+    str = malloc(sizeof(char) * (maxlen+1));
     if (str != NULL) {
         va_start(argp, fmt);
 #ifdef HAVE_VSNPRINTF
-        vsnprintf(str, maxlen - 1, fmt, argp);
+        vsnprintf(str, maxlen, fmt, argp);
 #else
         vsprintf(str, fmt, argp);
 #endif