fixed possible buffer overflow error

ef92a307 · Akos Vandra · antirez · d3ddeff2 · ef92a307
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src/rdb.c src/rdb.c +1 -1

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--- a/src/rdb.c
+++ b/src/rdb.c
@@ -398,7 +398,7 @@ int rdbSaveDoubleValue(rio *rdb, double val) {
        double min = -4503599627370495; /* (2^52)-1 */
        double max = 4503599627370496; /* -(2^52) */
        if (val > min && val < max && val == ((double)((long long)val)))
-            ll2string((char*)buf+1,sizeof(buf),(long long)val);
+            ll2string((char*)buf+1,sizeof(buf)-1,(long long)val);
        else
 #endif
            snprintf((char*)buf+1,sizeof(buf)-1,"%.17g",val);