scc

commit 77f45146adc228d86119395efa68aa0fb1437191
parent 249ecda69e6ec6de2dde995cc370239e9ff3e775
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun, 31 Oct 2021 07:54:55 +0100

cc1: Add proper handling of strings too long

When a string is too long we can just ignore everything until
we find end of string or quotes.

Diffstat:
M
src/cmd/cc/cc1/lex.c
 | 
11
+++++++++--

1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/src/cmd/cc/cc1/lex.c b/src/cmd/cc/cc1/lex.c
@@ -554,8 +554,15 @@ string(void)
 		if (c == '\\')
 			c = escape();
 		if (bp == &yytext[STRINGSIZ+1]) {
-			/* TODO: proper error handling here */
-			error("string too long");
+			for (++input->p; *input->p != '"'; ++input->p) {
+				if (*input->p == '\\')
+					++input->p;
+				if (*input->p == '\0')
+					break;
+			}
+			--bp;
+			errorp("string too long");
+			break;
 		}
 		*bp++ = c;
 	}