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177b969e8c
PiperOrigin-RevId: 238996664 Change-Id: I9646527e2be68ee0b6b371572b7aafe967102e57 Signed-off-by: Christian Blichmann <cblichmann@google.com>
28 lines
849 B
C++
28 lines
849 B
C++
// Copyright 2019 Google LLC. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// A binary that prints its opened file descriptors.
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#include <fcntl.h>
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#include <cstdio>
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int main(int argc, char** argv) {
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for (int fd = 0; fd < 4096; fd++) {
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if (fcntl(fd, F_GETFD) != -1) {
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printf("%d\n", fd);
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}
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}
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}
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