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-rw-r--r--shell/hush.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 603e19f..82bad66 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -2691,19 +2691,18 @@ static int expand_vars_to_list(o_string *output, int n, char *arg, char or_mask)
arg = ++p;
} /* end of "while (SPECIAL_VAR_SYMBOL is found) ..." */
- {
- int len = strlen(arg);
- if (len) {
- o_debug_list("expand_vars_to_list[a]", output, n);
- o_addstr(output, arg, len + 1);
- o_debug_list("expand_vars_to_list[b]", output, n);
- } else if (output->length == o_get_last_ptr(output, n)) { /* expansion is empty */
- if (!(ored_ch & 0x80)) { /* all vars were not quoted... */
- n--;
- /* allow to reuse list[n] later without re-growth */
- output->has_empty_slot = 1;
- }
- }
+ if (arg[0]) {
+ o_debug_list("expand_vars_to_list[a]", output, n);
+ o_addstr(output, arg, strlen(arg) + 1);
+ o_debug_list("expand_vars_to_list[b]", output, n);
+ } else if (output->length == o_get_last_ptr(output, n) /* expansion is empty */
+ && !(ored_ch & 0x80) /* and all vars were not quoted. */
+ ) {
+ n--;
+ /* allow to reuse list[n] later without re-growth */
+ output->has_empty_slot = 1;
+ } else {
+ o_addchr(output, '\0');
}
return n;
}