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Try to fix terminfo loading 

It could lead to crashing the PTY under OpenBSD and ncurses.

Fixed some unibiliums leaks while at it.
This commit is contained in:
Přemysl Eric Janouch 2016-11-03 02:25:47 +01:00
parent c1251f3978
commit 059cb81817
Signed by: p
GPG Key ID: B715679E3A361BE6
1 changed files with 13 additions and 7 deletions
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20
driver-ti.c
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@ -177,6 +177,7 @@ static bool
load_terminfo (termo_ti_t *ti, const char *term) load_terminfo (termo_ti_t *ti, const char *term)
{ {
const char *mouse_report_string = NULL; const char *mouse_report_string = NULL;
bool result = false;
#ifdef HAVE_UNIBILIUM #ifdef HAVE_UNIBILIUM
unibi_term *unibi = unibi_from_term (term); unibi_term *unibi = unibi_from_term (term);
@ -191,8 +192,12 @@ load_terminfo (termo_ti_t *ti, const char *term)
// Have to cast away the const. But it's OK - we know terminfo won't // Have to cast away the const. But it's OK - we know terminfo won't
// really modify term // really modify term
int err; int err;
TERMINAL *saved_term = set_curterm (NULL);
if (setupterm ((char *) term, 1, &err) != OK) if (setupterm ((char *) term, 1, &err) != OK)
{
set_curterm (saved_term);
return false; return false;
}
for (int i = 0; strfnames[i]; i++) for (int i = 0; strfnames[i]; i++)
{ {
@ -227,8 +232,7 @@ load_terminfo (termo_ti_t *ti, const char *term)
if (node && !insert_seq (ti, value, node)) if (node && !insert_seq (ti, value, node))
{ {
free (node); free (node);
// FIXME: unibi leak goto fail;
return false;
} }
} }
@ -255,14 +259,13 @@ load_terminfo (termo_ti_t *ti, const char *term)
trie_node_t *node = malloc (sizeof *node); trie_node_t *node = malloc (sizeof *node);
if (!node) if (!node)
return false; goto fail;
node->type = TYPE_MOUSE; node->type = TYPE_MOUSE;
if (!insert_seq (ti, mouse_report_string, node)) if (!insert_seq (ti, mouse_report_string, node))
{ {
free (node); free (node);
// FIXME: unibi leak goto fail;
return false;
} }
} }
@ -305,11 +308,14 @@ load_terminfo (termo_ti_t *ti, const char *term)
else else
ti->stop_string = NULL; ti->stop_string = NULL;
result = true;
fail:
#ifdef HAVE_UNIBILIUM #ifdef HAVE_UNIBILIUM
unibi_destroy (unibi); unibi_destroy (unibi);
#else
del_curterm (set_curterm (saved_term));
#endif #endif
return result;
return true;
} }
static bool static bool