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common/json: remove asserts() which may trigger from user input.

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They don't currently, since callers check, but be safe.  In addition,
handle NULL returns from these in the bitcoind code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2017-10-24 12:53:43 +10:30
committed by Christian Decker
parent 11b43a422b
commit 81db5896e1
2 changed files with 14 additions and 4 deletions
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10
common/json.c
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@@ -157,7 +157,8 @@ const jsmntok_t *json_get_member(const char *buffer, const jsmntok_t tok[],
{
const jsmntok_t *t, *end;
assert(tok->type == JSMN_OBJECT);
if (tok->type != JSMN_OBJECT)
return NULL;
end = json_next(tok);
for (t = tok + 1; t < end; t = json_next(t+1))
@@ -171,7 +172,8 @@ const jsmntok_t *json_get_arr(const jsmntok_t tok[], size_t index)
{
const jsmntok_t *t, *end;
assert(tok->type == JSMN_ARRAY);
if (tok->type != JSMN_ARRAY)
return NULL;
end = json_next(tok);
for (t = tok + 1; t < end; t = json_next(t)) {
@@ -235,8 +237,8 @@ bool json_get_params(const char *buffer, const jsmntok_t param[], ...)
else
p = param + 1;
end = json_next(param);
} else
assert(param->type == JSMN_OBJECT);
} else if (param->type != JSMN_OBJECT)
return false;
va_start(ap, param);
while ((name = va_arg(ap, const char *)) != NULL) {