From: Tim Rühsen <tim.ruehsen@gmx.de>
Date: Sun, 28 Oct 2018 10:33:27 +0000 (+0100)
Subject: mprintf: avoid unsigned integer overflow warning
X-Git-Tag: curl-7_63_0~111
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e4f2a5bc1b6146f96a8a5778a13ab3d0c6071040;p=curl

mprintf: avoid unsigned integer overflow warning

The overflow has no real world impact.
Just avoid it for "best practice".

Code change suggested by "The Infinnovation Team" and Daniel Stenberg.
Closes #3184
---

diff --git a/lib/mprintf.c b/lib/mprintf.c
index d2d91d743..e19093678 100644
--- a/lib/mprintf.c
+++ b/lib/mprintf.c
@@ -835,7 +835,7 @@ static int dprintf_formatf(
           while(width-- > 0)
             OUTCHAR(' ');
 
-        while((len-- > 0) && *str)
+        for(; len && *str; len--)
           OUTCHAR(*str++);
         if(p->flags&FLAGS_LEFT)
           while(width-- > 0)