scc

commit 99bbacfea1e1440120f0bc7579a36c09f16e342a
parent 7a5dbbc2d23f9d545fe95ef336d3ef1e7bf4d831
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Wed, 26 Oct 2022 15:20:04 +0200

cc1: Return EOF in skipspace() when no input

If we don't have a input pointer it is clear that we
have to return EOF and in case of not returning the code
just will segfault.

Diffstat:
M
src/cmd/cc/cc1/lex.c
 | 
3
+++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/src/cmd/cc/cc1/lex.c b/src/cmd/cc/cc1/lex.c
@@ -797,6 +797,9 @@ skipspaces(void)
 {
 	int c;
 
+	if (!input)
+		return EOF;
+
 	for (;;) {
 		switch (c = *input->p) {
 		case '\n':