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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use
* this file except in compliance with the License. A copy of the License is
* located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cbmc_proof/nondet.h>
#include <errno.h>
#include <unistd.h>
static bool loop_flag = false;
ssize_t read(int fd, void *buf, size_t nbyte)
{
errno = nondet_int();
if (loop_flag) {
__CPROVER_assume(errno != EINTR);
return 0;
}
loop_flag = true;
ssize_t rval;
__CPROVER_assume(rval <= ( ssize_t )nbyte);
return rval;
}
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