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patch 7.4.1255

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Problem:    Crash for channel "eval" command without third argument.
Solution:   Check for missing argument.
This commit is contained in:
Bram Moolenaar
2016-02-03 23:59:43 +01:00
parent 3b05b135e3
commit 66624ff0d9
4 changed files with 16 additions and 4 deletions
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4
src/channel.c
View File

@@ -694,7 +694,7 @@ channel_exe_cmd(int idx, char_u *cmd, typval_T *arg2, typval_T *arg3)
{ {
int is_eval = cmd[1] == 'v'; int is_eval = cmd[1] == 'v';
if (is_eval && arg3->v_type != VAR_NUMBER) if (is_eval && (arg3 == NULL || arg3->v_type != VAR_NUMBER))
{ {
if (p_verbose > 2) if (p_verbose > 2)
EMSG("E904: third argument for eval must be a number"); EMSG("E904: third argument for eval must be a number");
@@ -774,7 +774,7 @@ may_invoke_callback(int idx)
typval_T *arg3 = NULL; typval_T *arg3 = NULL;
char_u *cmd = typetv->vval.v_string; char_u *cmd = typetv->vval.v_string;
/* ["cmd", arg] */ /* ["cmd", arg] or ["cmd", arg, arg] */
if (list->lv_len == 3) if (list->lv_len == 3)
arg3 = &list->lv_last->li_tv; arg3 = &list->lv_last->li_tv;
channel_exe_cmd(idx, cmd, &argv[1], arg3); channel_exe_cmd(idx, cmd, &argv[1], arg3);

10
src/testdir/test_channel.py
View File

@@ -68,8 +68,8 @@ class ThreadedTCPRequestHandler(socketserver.BaseRequestHandler):
# simply send back a string # simply send back a string
response = "got it" response = "got it"
elif decoded[1] == 'make change': elif decoded[1] == 'make change':
# Send two ex commands at the same time, before replying to # Send two ex commands at the same time, before
# the request. # replying to the request.
cmd = '["ex","call append(\\"$\\",\\"added1\\")"]' cmd = '["ex","call append(\\"$\\",\\"added1\\")"]'
cmd += '["ex","call append(\\"$\\",\\"added2\\")"]' cmd += '["ex","call append(\\"$\\",\\"added2\\")"]'
print("sending: {}".format(cmd)) print("sending: {}".format(cmd))
@@ -87,6 +87,12 @@ class ThreadedTCPRequestHandler(socketserver.BaseRequestHandler):
print("sending: {}".format(cmd)) print("sending: {}".format(cmd))
self.request.sendall(cmd.encode('utf-8')) self.request.sendall(cmd.encode('utf-8'))
response = "ok" response = "ok"
elif decoded[1] == 'eval-bad':
# Send an eval request missing the third argument.
cmd = '["eval","xxx"]'
print("sending: {}".format(cmd))
self.request.sendall(cmd.encode('utf-8'))
response = "ok"
elif decoded[1] == 'eval-result': elif decoded[1] == 'eval-result':
# Send back the last received eval result. # Send back the last received eval result.
response = last_eval response = last_eval

4
src/testdir/test_channel.vim
View File

@@ -90,6 +90,10 @@ func Test_communicate()
call assert_equal('ok', ch_sendexpr(handle, 'eval-fails')) call assert_equal('ok', ch_sendexpr(handle, 'eval-fails'))
call assert_equal([-2, 'ERROR'], ch_sendexpr(handle, 'eval-result')) call assert_equal([-2, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
" Send a bad eval request. There will be no response.
call assert_equal('ok', ch_sendexpr(handle, 'eval-bad'))
call assert_equal([-2, 'ERROR'], ch_sendexpr(handle, 'eval-result'))
" make the server quit, can't check if this works, should not hang. " make the server quit, can't check if this works, should not hang.
call ch_sendexpr(handle, '!quit!', 0) call ch_sendexpr(handle, '!quit!', 0)

2
src/version.c
View File

@@ -742,6 +742,8 @@ static char *(features[]) =
static int included_patches[] = static int included_patches[] =
{ /* Add new patch number below this line */ { /* Add new patch number below this line */
/**/
1255,
/**/ /**/
1254, 1254,
/**/ /**/