diff options
Diffstat (limited to 'src/VBox/Runtime/r3/posix/RTHandleGetStandard-posix.cpp')
-rw-r--r-- | src/VBox/Runtime/r3/posix/RTHandleGetStandard-posix.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/RTHandleGetStandard-posix.cpp b/src/VBox/Runtime/r3/posix/RTHandleGetStandard-posix.cpp new file mode 100644 index 00000000..c5cf796d --- /dev/null +++ b/src/VBox/Runtime/r3/posix/RTHandleGetStandard-posix.cpp @@ -0,0 +1,132 @@ +/* $Id: RTHandleGetStandard-posix.cpp $ */ +/** @file + * IPRT - RTHandleGetStandard, POSIX. + */ + +/* + * Copyright (C) 2012-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <errno.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include <fcntl.h> +#ifdef _MSC_VER +# include <io.h> +#else +# include <unistd.h> +#endif + +#include "internal/iprt.h" +#include <iprt/handle.h> + +#include <iprt/file.h> +#include <iprt/pipe.h> +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include <iprt/log.h> + +#include "internal/socket.h" + + + +RTDECL(int) RTHandleGetStandard(RTHANDLESTD enmStdHandle, PRTHANDLE ph) +{ + /* + * Validate and convert input. + */ + AssertPtrReturn(ph, VERR_INVALID_POINTER); + int fd; + switch (enmStdHandle) + { + case RTHANDLESTD_INPUT: fd = 0; break; + case RTHANDLESTD_OUTPUT: fd = 1; break; + case RTHANDLESTD_ERROR: fd = 2; break; + default: + AssertFailedReturn(VERR_INVALID_PARAMETER); + } + + /* + * Is the requested descriptor valid and which IPRT handle type does it + * best map on to? + */ + struct stat st; + int rc = fstat(fd, &st); + if (rc == -1) + return RTErrConvertFromErrno(errno); + + rc = fcntl(fd, F_GETFD, 0); + if (rc == -1) + return RTErrConvertFromErrno(errno); + bool const fInherit = !(rc & FD_CLOEXEC); + + RTHANDLE h; + if (S_ISREG(st.st_mode)) + h.enmType = RTHANDLETYPE_FILE; + else if ( S_ISFIFO(st.st_mode) + || (st.st_mode == 0 && st.st_nlink == 0 /*see bugs on bsd manpage*/)) + h.enmType = RTHANDLETYPE_PIPE; + else if (S_ISSOCK(st.st_mode)) + { + /** @todo check if it's really a socket... IIRC some OSes reports + * anonymouse pips as sockets. */ + h.enmType = RTHANDLETYPE_SOCKET; + } +#if 0 /** @todo re-enable this when the VFS pipe has been coded up. */ + else if (isatty(fd)) + h.enmType = RTHANDLETYPE_PIPE; +#endif + else + h.enmType = RTHANDLETYPE_FILE; + + /* + * Create the IPRT handle. + */ + switch (h.enmType) + { + case RTHANDLETYPE_FILE: + rc = RTFileFromNative(&h.u.hFile, fd); + break; + + case RTHANDLETYPE_PIPE: + rc = RTPipeFromNative(&h.u.hPipe, fd, + (enmStdHandle == RTHANDLESTD_INPUT ? RTPIPE_N_READ : RTPIPE_N_WRITE) + | (fInherit ? RTPIPE_N_INHERIT : 0)); + break; + + case RTHANDLETYPE_SOCKET: + rc = rtSocketCreateForNative(&h.u.hSocket, fd); + break; + + default: /* shut up gcc */ + return VERR_INTERNAL_ERROR; + } + + if (RT_SUCCESS(rc)) + *ph = h; + + return rc; +} + |