When icanon is set with -echo (e.g. ssh from an emacs shell) then
S.state will remain null but later it will be deferenced causing ash to
crash. Fix: additional check on state.
---
libbb/lineedit.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index 625884adf..bdae10914 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -254,7 +254,7 @@ static NOINLINE const char *get_homedir_or_NULL(void)
const char *home;
# if ENABLE_SHELL_ASH || ENABLE_SHELL_HUSH
- home = state->sh_get_var ? state->sh_get_var("HOME") : getenv("HOME");
+ home = state && state->sh_get_var ? state->sh_get_var("HOME") :
getenv("HOME");
# else
home = getenv("HOME");
# endif
@@ -2038,7 +2038,7 @@ static void parse_and_put_prompt(const char *prmt_ptr)
if (!cwd_buf) {
const char *home;
# if EDITING_HAS_sh_get_var
- cwd_buf = state->sh_get_var
+ cwd_buf = state &&
state->sh_get_var
?
xstrdup(state->sh_get_var("PWD"))
:
xrealloc_getcwd_or_warn(NULL);
# else
--
2.40.0
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