33 lines
989 B
C++
33 lines
989 B
C++
//===-- Linux implementation of tcgetsid ----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/termios/tcgetsid.h"
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#include "src/__support/OSUtil/syscall.h"
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#include "src/__support/common.h"
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#include "src/__support/macros/config.h"
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#include "src/errno/libc_errno.h"
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#include <asm/ioctls.h> // Safe to include without the risk of name pollution.
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#include <sys/syscall.h> // For syscall numbers
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#include <termios.h>
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namespace LIBC_NAMESPACE_DECL {
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LLVM_LIBC_FUNCTION(pid_t, tcgetsid, (int fd)) {
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pid_t sid;
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int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_ioctl, fd, TIOCGSID, &sid);
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if (ret < 0) {
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libc_errno = -ret;
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return -1;
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}
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return sid;
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}
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} // namespace LIBC_NAMESPACE_DECL
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