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Fix null dereference in readline initialization

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* guile-readline/readline.c (init_bouncing_parens): Check that the keymap is
  valid before using it.
This commit is contained in:
Daniel Llorens 2021-05-27 11:56:24 +02:00
parent 17aab66e75
commit c1fd55d174
1 changed files with 11 additions and 6 deletions
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7
guile-readline/readline.c
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@ -431,12 +431,17 @@ static void init_bouncing_parens ();
static void static void
init_bouncing_parens () init_bouncing_parens ()
{ {
if (strncmp (rl_get_keymap_name (rl_get_keymap ()), "vi", 2)) Keymap km = rl_get_keymap ();
if (km)
if (strncmp (rl_get_keymap_name (km), "vi", 2))
{ {
rl_bind_key (')', match_paren); rl_bind_key (')', match_paren);
rl_bind_key (']', match_paren); rl_bind_key (']', match_paren);
rl_bind_key ('}', match_paren); rl_bind_key ('}', match_paren);
} }
else
scm_error (scm_misc_error_key, "", "readline has not been properly initialized",
SCM_EOL, SCM_EOL);
} }
static int static int