Merge pull request #95 from janfh/fix/issue94_unicode_escape

Fix for issue #94: Escape \u if following 4 characters is not hex digits
sitemule · Dec 13, 2024 · 1d5288f · 1d5288f
2 parents f430c95 + 79596bc
commit 1d5288f
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/serializer.c b/src/serializer.c
@@ -51,7 +51,10 @@ static void   jx_EncodeJsonStream (PSTREAM p , PUCHAR in)
 			}
 		}
 		else if  (c  == pJw->backSlash) {
-			if (in[1] != 'u') {  // Dont double escape unicode escape sequence
+			// Dont double escape unicode escape sequence
+			if (strlen(in) < 6 || in[1] != 'u'   
+				|| !isxdigit(in[2]) || !isxdigit(in[3])
+				|| !isxdigit(in[4]) || !isxdigit(in[5])) {  
 				stream_putc(p,pJw->backSlash);
 			}
 		}