lineedit: do not hang on error, but return error indicator.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index d2b808a..066b569 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -2169,7 +2169,7 @@
ic = lineedit_read_key(read_key_buffer);
if (errno) /* error */
- goto prepare_to_die;
+ goto return_error_indicator;
if (ic == ic_raw) { /* "cc", "dd" */
input_backward(cursor);
goto clear_to_eol;
@@ -2233,7 +2233,7 @@
//FIXME: unicode case?
ic = lineedit_read_key(read_key_buffer);
if (errno) /* error */
- goto prepare_to_die;
+ goto return_error_indicator;
if (ic < ' ' || ic > 255) {
beep();
} else {
@@ -2305,9 +2305,9 @@
* or exit if len=0 and no chars to delete */
if (command_len == 0) {
errno = 0;
-#if ENABLE_FEATURE_EDITING_VI
- prepare_to_die:
-#endif
+
+ case -1: /* error (e.g. EIO when tty is destroyed) */
+ IF_FEATURE_EDITING_VI(return_error_indicator:)
break_out = command_len = -1;
break;
}
@@ -2317,7 +2317,7 @@
// /* Control-V -- force insert of next char */
// if (c == CTRL('V')) {
// if (safe_read(STDIN_FILENO, &c, 1) < 1)
-// goto prepare_to_die;
+// goto return_error_indicator;
// if (c == 0) {
// beep();
// break;