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patch 8.0.0216: decoding js style json may fail

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Problem:    When decoding JSON with a JS style object the JSON test may use a
            NULL pointer. (Coverity)
Solution:   Check for a NULL pointer.
This commit is contained in:
Bram Moolenaar
2017-01-22 15:56:26 +01:00
parent e362c3d2c3
commit e2c6037da3
3 changed files with 16 additions and 4 deletions
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8
src/json.c
View File

@@ -629,11 +629,14 @@ json_decode_item(js_read_T *reader, typval_T *res, int options)
key = p = reader->js_buf + reader->js_used;
while (*p != NUL && *p != ':' && *p > ' ')
++p;
if (cur_item != NULL)
{
cur_item->v_type = VAR_STRING;
cur_item->vval.v_string = vim_strnsave(key, (int)(p - key));
reader->js_used += (int)(p - key);
top_item->jd_key = cur_item->vval.v_string;
}
reader->js_used += (int)(p - key);
}
else
{
switch (*p)
@@ -1053,7 +1056,8 @@ json_decode(js_read_T *reader, typval_T *res, int options)
/*
* Decode the JSON from "reader" to find the end of the message.
* "options" can be JSON_JS or zero;
* "options" can be JSON_JS or zero.
* This is only used for testing.
* Return FAIL if the message has a decoding error.
* Return MAYBE if the message is truncated, need to read more.
* This only works reliable if the message contains an object, array or

6
src/json_test.c
View File

@@ -107,6 +107,12 @@ test_decode_find_end(void)
reader.js_buf = (char_u *)" { ";
assert(json_find_end(&reader, 0) == MAYBE);
/* JS object with white space */
reader.js_buf = (char_u *)" { a : 123 } ";
assert(json_find_end(&reader, JSON_JS) == OK);
reader.js_buf = (char_u *)" { a : ";
assert(json_find_end(&reader, JSON_JS) == MAYBE);
/* array without white space */
reader.js_buf = (char_u *)"[\"a\",123]";
assert(json_find_end(&reader, 0) == OK);

2
src/version.c
View File

@@ -764,6 +764,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
216,
/**/
215,
/**/