From: Emden R. Gansner <erg@alum.mit.edu>
Date: Fri, 25 Apr 2014 14:45:32 +0000 (-0400)
Subject: Fix bug 2444
X-Git-Tag: TRAVIS_CI_BUILD_EXPERIMENTAL~219
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=610bb86d9ab553b6b6f66afc9c4a501a37afc18b;p=graphviz

Fix bug 2444
---

diff --git a/lib/common/shapes.c b/lib/common/shapes.c
index 3cb2cfb54..d8b3f2db9 100644
--- a/lib/common/shapes.c
+++ b/lib/common/shapes.c
@@ -3183,6 +3183,7 @@ static field_t *parse_reclbl(node_t * n, int LR, int flag, char *text)
     char *tmpport = NULL;
     int maxf, cnt, mode, wflag, ishardspace, fi;
     textlabel_t *lbl = ND_label(n);
+    unsigned char uc;
 
     fp = NULL;
     for (maxf = 1, cnt = 0, sp = reclblp; *sp; sp++) {
@@ -3209,7 +3210,7 @@ static field_t *parse_reclbl(node_t * n, int LR, int flag, char *text)
     wflag = TRUE;
     ishardspace = FALSE;
     while (wflag) {
-	if ((*reclblp < ' ') && *reclblp) {    /* Ignore non-0 control characters */
+	if ((uc = *(unsigned char*)reclblp) && (uc < ' ')) {    /* Ignore non-0 control characters */
 	    reclblp++;
 	    continue;
 	}