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-rw-r--r--shell/hush.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 752efd0..ef0c454 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -4728,9 +4728,9 @@ static NOINLINE const char *expand_one_var(char **to_be_freed_pp, char *arg, cha
if (beg < 0) /* bash compat */
beg = 0;
debug_printf_varexp("from val:'%s'\n", val);
- if (len == 0 || !val || beg >= strlen(val))
- val = "";
- else {
+ if (len == 0 || !val || beg >= strlen(val)) {
+ val = NULL;
+ } else {
/* Paranoia. What if user entered 9999999999999
* which fits in arith_t but not int? */
if (len >= INT_MAX)
@@ -4742,7 +4742,7 @@ static NOINLINE const char *expand_one_var(char **to_be_freed_pp, char *arg, cha
#endif
{
die_if_script("malformed ${%s:...}", var);
- val = "";
+ val = NULL;
}
} else { /* one of "-=+?" */
/* Standard-mandated substitution ops: