86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
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// Copyright 2012 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/// \file run.h
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/// Structures and functions to run a program in an isolated manner.
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///
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/// Pretty much all the functions of this module (ab)use global variables to
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/// store their state. This means that they are not reentrant, but this is by
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/// design: the whole point of implementing standalone testers is to simplify
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/// the writing of this code by being able to make such assumptions.
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#if !defined(KYUA_RUN_H)
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#define KYUA_RUN_H
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#include <stdbool.h>
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#include <unistd.h>
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#include "defs.h"
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#include "error_fwd.h"
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#include "run_fwd.h"
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extern const char* kyua_run_tmpdir;
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/// Parameters that indicate how to isolate a subprocess.
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///
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/// In the name of simplicity, the fields of this structure can be considered
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/// public.
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struct kyua_run_params {
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/// Execution deadline for the subprocess.
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unsigned long timeout_seconds;
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/// Work directory for the subprocess to use.
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const char* work_directory;
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/// UID of the user to switch to before running the subprocess.
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uid_t unprivileged_user;
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/// GID of the group to switch to before running the subprocess.
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gid_t unprivileged_group;
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};
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void kyua_run_params_init(kyua_run_params_t*);
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void kyua_run_exec(const char*, const char* const*) KYUA_DEFS_NORETURN;
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kyua_error_t kyua_run_fork(const kyua_run_params_t*, pid_t* const);
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kyua_error_t kyua_run_wait(const pid_t, int*, bool*);
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kyua_error_t kyua_run_work_directory_enter(const char*, const uid_t,
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const gid_t, char**);
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kyua_error_t kyua_run_work_directory_leave(char**);
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#endif // !defined(KYUA_RUN_H)
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