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-rw-r--r--shell/hush.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 65babdfc1..2dd59bbb4 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -4238,7 +4238,8 @@ int hush_main(int argc, char **argv)
}
input = stdin;
- while ((opt = getopt(argc, argv, "c:xin")) > 0) {
+ /* http://www.opengroup.org/onlinepubs/9699919799/utilities/sh.html */
+ while ((opt = getopt(argc, argv, "c:xins")) > 0) {
switch (opt) {
case 'c':
G.global_argv = argv + optind;
@@ -4258,6 +4259,10 @@ int hush_main(int argc, char **argv)
case 'n':
G.fake_mode = 1;
break;
+ case 's':
+ /* "-s" means "read from stdin", but this is how we always
+ * operate, so simply do nothing here. */
+ break;
default:
#ifndef BB_VER
fprintf(stderr, "Usage: sh [FILE]...\n"