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harden a few API methods against longjumps in set_error. Memory leak exposed in #1297

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-11 09:53:02 -07:00
parent 09ea370ea3
commit c093e6d4b9
4 changed files with 26 additions and 22 deletions
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4
src/api/api_quant.cpp
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@ -63,9 +63,11 @@ extern "C" {
RESET_ERROR_CODE();
if (!mk_c(c)->m().is_bool(to_expr(body))) {
SET_ERROR_CODE(Z3_SORT_ERROR);
return nullptr;
}
if (num_patterns > 0 && num_no_patterns > 0) {
SET_ERROR_CODE(Z3_INVALID_USAGE);
return nullptr;
}
expr * const* ps = reinterpret_cast<expr * const*>(patterns);
expr * const* no_ps = reinterpret_cast<expr * const*>(no_patterns);
@ -76,7 +78,7 @@ extern "C" {
for (unsigned i = 0; i < num_patterns; i++) {
if (!v(num_decls, ps[i], 0, 0)) {
SET_ERROR_CODE(Z3_INVALID_PATTERN);
return 0;
return nullptr;
}
}
}