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Code Issues Releases Wiki Activity

getch2: Remove unused function, fix possible crash

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If we still haven't read the full key from the input but it's regardless a
unique match in the database, we could receive a NULL keycode from
keys_search (it's not a full match after all) and proceed to use it.

Don't disable the keycode matching code if we don't have termcap as we can
still match against the hardcoded sequences.
This commit is contained in:
Diogo Franco (Kovensky) 2013-07-25 12:21:22 -03:00
parent 057467f6b3
commit 19b1279bb3
1 changed files with 19 additions and 25 deletions
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44
osdep/getch2.c
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@ -134,16 +134,6 @@ static keycode_st *keys_search(char *buf, int buflen) {
return NULL;
}
static keycode_st *keys_get_by_cap(char *cap) {
for (int i = 0; i < getch2_keys.len; i++) {
keycode_st *st = &getch2_keys.map[i];
if (strcmp(cap, st->cap) == 0)
return st;
}
return NULL;
}
/* pushes only if there is no duplicate.
important as we only consider keys if the matches are unique. */
static keycode_st* keys_push_once(char *p, int code) {
@ -374,29 +364,33 @@ bool getch2(struct input_ctx *input_ctx)
switch (state) {
case STATE_INITIAL: {
#ifdef HAVE_TERMCAP
int match_count = keys_count_matches(&getch2_buf[0], getch2_len);
if (match_count == 1) {
keycode_st *st = keys_search(&getch2_buf[0], getch2_len);
mp_input_put_key(input_ctx, st->code);
walk_buf(st->len);
if (st) {
mp_input_put_key(input_ctx, st->code);
walk_buf(st->len);
} /* else this is still a partial (but unique) match */
continue;
} else if (match_count > 1) {
continue; /* need more bytes to disambiguate */
} else {
#endif
utf8_len = bstr_parse_utf8_code_length(c);
if (utf8_len > 1) {
state = STATE_UTF8;
} else {
if (utf8_len == 1)
mp_input_put_key(input_ctx, c);
walk_buf(getch2_pos);
}
#ifdef HAVE_TERMCAP
/* backtrack, send as UTF-8 */
getch2_pos = 0;
c = getch2_buf[0];
}
#endif
utf8_len = bstr_parse_utf8_code_length(c);
if (utf8_len > 1) {
state = STATE_UTF8;
} else if (utf8_len == 1) {
mp_input_put_key(input_ctx, c);
walk_buf(1);
} else
walk_buf(getch2_pos);
break;
}
case STATE_UTF8: {