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patch 7.4.2313

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Problem:    Crash when deleting an augroup and listing an autocommand.
            (Dominique Pelle)
Solution:   Make sure deleted_augroup is valid.
This commit is contained in:
Bram Moolenaar 2016-09-03 16:43:53 +02:00
parent 5a49789a9b
commit b62cc36a60
3 changed files with 26 additions and 8 deletions
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23
src/fileio.c
View File

@ -7758,6 +7758,7 @@ static AutoPatCmd *active_apc_list = NULL; /* stack of active autocommands */
*/
static garray_T augroups = {0, 0, sizeof(char_u *), 10, NULL};
#define AUGROUP_NAME(i) (((char_u **)augroups.ga_data)[i])
/* use get_deleted_augroup() to get this */
static char_u *deleted_augroup = NULL;
/*
@ -7790,6 +7791,14 @@ static event_T last_event;
static int last_group;
static int autocmd_blocked = 0; /* block all autocmds */
static char_u *
get_deleted_augroup(void)
{
if (deleted_augroup == NULL)
deleted_augroup = (char_u *)_("--Deleted--");
return deleted_augroup;
}
/*
* Show the autocommands for one AutoPat.
*/
@ -7813,7 +7822,7 @@ show_autocmd(AutoPat *ap, event_T event)
if (ap->group != AUGROUP_DEFAULT)
{
if (AUGROUP_NAME(ap->group) == NULL)
msg_puts_attr(deleted_augroup, hl_attr(HLF_E));
msg_puts_attr(get_deleted_augroup(), hl_attr(HLF_E));
else
msg_puts_attr(AUGROUP_NAME(ap->group), hl_attr(HLF_T));
msg_puts((char_u *)" ");
@ -8029,9 +8038,7 @@ au_del_group(char_u *name)
vim_free(AUGROUP_NAME(i));
if (in_use)
{
if (deleted_augroup == NULL)
deleted_augroup = (char_u *)_("--Deleted--");
AUGROUP_NAME(i) = deleted_augroup;
AUGROUP_NAME(i) = get_deleted_augroup();
}
else
AUGROUP_NAME(i) = NULL;
@ -8048,7 +8055,7 @@ au_find_group(char_u *name)
int i;
for (i = 0; i < augroups.ga_len; ++i)
if (AUGROUP_NAME(i) != NULL && AUGROUP_NAME(i) != deleted_augroup
if (AUGROUP_NAME(i) != NULL && AUGROUP_NAME(i) != get_deleted_augroup()
&& STRCMP(AUGROUP_NAME(i), name) == 0)
return i;
return AUGROUP_ERROR;
@ -8116,7 +8123,7 @@ free_all_autocmds(void)
for (i = 0; i < augroups.ga_len; ++i)
{
s = ((char_u **)(augroups.ga_data))[i];
if (s != deleted_augroup)
if (s != get_deleted_augroup())
vim_free(s);
}
ga_clear(&augroups);
@ -9865,7 +9872,7 @@ get_augroup_name(expand_T *xp UNUSED, int idx)
return (char_u *)"END";
if (idx >= augroups.ga_len) /* end of list */
return NULL;
if (AUGROUP_NAME(idx) == NULL || AUGROUP_NAME(idx) == deleted_augroup)
if (AUGROUP_NAME(idx) == NULL || AUGROUP_NAME(idx) == get_deleted_augroup())
/* skip deleted entries */
return (char_u *)"";
return AUGROUP_NAME(idx); /* return a name */
@ -9931,7 +9938,7 @@ get_event_name(expand_T *xp UNUSED, int idx)
if (idx < augroups.ga_len) /* First list group names, if wanted */
{
if (!include_groups || AUGROUP_NAME(idx) == NULL
|| AUGROUP_NAME(idx) == deleted_augroup)
|| AUGROUP_NAME(idx) == get_deleted_augroup())
return (char_u *)""; /* skip deleted entries */
return AUGROUP_NAME(idx); /* return a name */
}

9
src/testdir/test_autocmd.vim
View File

@ -183,3 +183,12 @@ func Test_augroup_warning()
redir END
call assert_true(match(res, "W19:") < 0)
endfunc
func Test_augroup_deleted()
" This caused a crash
augroup x
augroup! x
au VimEnter * echo
au VimEnter
endfunc

2
src/version.c
View File

@ -763,6 +763,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
2313,
/**/
2312,
/**/