Avoid calling bcopy with a negative number of bytes to copy. This mig…

…ht not be correct but this seems to have made bug #5 go away.
LegalizeAdulthood · Apr 17, 2023 · 2411f51 · 2411f51
1 parent 4670203
commit 2411f51
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/mime.c b/mime.c
@@ -1255,8 +1255,10 @@ char* f;
 		fudge = do_indent((char*)NULL);
 		while (*cp == ' ' || *cp == '\t') cp++;
 		if ((fudge -= cp - line_start) != 0) {
-		    if (fudge < 0)
-			bcopy(cp, cp + fudge, t - cp);
+		    if (fudge < 0) {
+			if (t - cp > 0)
+			    bcopy(cp, cp + fudge, t - cp);
+		    }
 		    else
 			for (s = t; s-- != cp; ) s[fudge] = *s;
 		    (void) do_indent(line_start);