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fix strict-overflow cases #3236

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This commit is contained in:
Nikolay Orlyuk
2014-05-04 19:51:31 +03:00
committed by Justin M. Keyes
parent fc7055f6e9
commit bbe24da869
2 changed files with 13 additions and 15 deletions
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16
src/nvim/getchar.c
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@@ -4109,7 +4109,6 @@ check_map (
int hash; int hash;
int len, minlen; int len, minlen;
mapblock_T *mp; mapblock_T *mp;
char_u *s;
int local; int local;
validate_maphash(); validate_maphash();
@@ -4133,17 +4132,14 @@ check_map (
/* skip entries with wrong mode, wrong length and not matching /* skip entries with wrong mode, wrong length and not matching
* ones */ * ones */
if ((mp->m_mode & mode) && (!exact || mp->m_keylen == len)) { if ((mp->m_mode & mode) && (!exact || mp->m_keylen == len)) {
if (len > mp->m_keylen) char_u *s = mp->m_keys;
minlen = mp->m_keylen; int keylen = mp->m_keylen;
else if (ign_mod && keylen >= 3
minlen = len; && s[0] == K_SPECIAL && s[1] == KS_MODIFIER) {
s = mp->m_keys;
if (ign_mod && s[0] == K_SPECIAL && s[1] == KS_MODIFIER
&& s[2] != NUL) {
s += 3; s += 3;
if (len > mp->m_keylen - 3) keylen -= 3;
minlen = mp->m_keylen - 3;
} }
minlen = keylen < len ? keylen : len;
if (STRNCMP(s, keys, minlen) == 0) { if (STRNCMP(s, keys, minlen) == 0) {
if (mp_ptr != NULL) if (mp_ptr != NULL)
*mp_ptr = mp; *mp_ptr = mp;

12
src/nvim/undo.c
View File

@@ -212,8 +212,11 @@ static void u_check(int newhead_may_be_NULL) {
*/ */
int u_save_cursor(void) int u_save_cursor(void)
{ {
return u_save((linenr_T)(curwin->w_cursor.lnum - 1), linenr_T cur = curwin->w_cursor.lnum;
(linenr_T)(curwin->w_cursor.lnum + 1)); linenr_T top = cur > 0 ? cur - 1 : 0;
linenr_T bot = cur + 1;
return u_save(top, bot);
} }
/* /*
@@ -227,10 +230,9 @@ int u_save(linenr_T top, linenr_T bot)
if (undo_off) if (undo_off)
return OK; return OK;
if (top > curbuf->b_ml.ml_line_count if (top >= bot || bot > (curbuf->b_ml.ml_line_count + 1)) {
|| top >= bot
|| bot > curbuf->b_ml.ml_line_count + 1)
return FAIL; /* rely on caller to do error messages */ return FAIL; /* rely on caller to do error messages */
}
if (top + 2 == bot) if (top + 2 == bot)
u_saveline((linenr_T)(top + 1)); u_saveline((linenr_T)(top + 1));