kbuild: add support for reading stdin with gen_init_cpio

Treat an argument of "-" as meaning "read stdin for cpio files" so gen_init_cpio can be piped into. Signed-off-by: Mike Frysinger <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
wangbin579 · Jul 16, 2007 · f2434ec · f2434ec
1 parent e99c343
commit f2434ec
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
@@ -498,7 +498,9 @@ int main (int argc, char *argv[])
 		exit(1);
 	}
 
-	if (! (cpio_list = fopen(argv[1], "r"))) {
+	if (!strcmp(argv[1], "-"))
+		cpio_list = stdin;
+	else if (! (cpio_list = fopen(argv[1], "r"))) {
 		fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",
 			argv[1], strerror(errno));
 		usage(argv[0]);