diff options
Diffstat (limited to 'src/VBox/Runtime/r3/posix/process-posix.cpp')
| -rw-r--r-- | src/VBox/Runtime/r3/posix/process-posix.cpp | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/process-posix.cpp b/src/VBox/Runtime/r3/posix/process-posix.cpp new file mode 100644 index 00000000..c0b2b512 --- /dev/null +++ b/src/VBox/Runtime/r3/posix/process-posix.cpp @@ -0,0 +1,279 @@ +/* $Id: process-posix.cpp $ */ +/** @file + * IPRT - Process, POSIX. + */ + +/* + * Copyright (C) 2006-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox 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. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define LOG_GROUP RTLOGGROUP_PROCESS +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <signal.h> +#include <pwd.h> + +#include <iprt/process.h> +#include "internal/iprt.h" + +#include <iprt/assert.h> +#include <iprt/env.h> +#include <iprt/err.h> +#include <iprt/file.h> +#include <iprt/pipe.h> +#include <iprt/socket.h> +#include <iprt/string.h> +#include <iprt/mem.h> +#include "internal/process.h" + + +RTR3DECL(int) RTProcWait(RTPROCESS Process, unsigned fFlags, PRTPROCSTATUS pProcStatus) +{ + int rc; + do rc = RTProcWaitNoResume(Process, fFlags, pProcStatus); + while (rc == VERR_INTERRUPTED); + return rc; +} + + +RTR3DECL(int) RTProcWaitNoResume(RTPROCESS Process, unsigned fFlags, PRTPROCSTATUS pProcStatus) +{ + /* + * Validate input. + */ + if (Process <= 0) + { + AssertMsgFailed(("Invalid Process=%d\n", Process)); + return VERR_INVALID_PARAMETER; + } + if (fFlags & ~(RTPROCWAIT_FLAGS_NOBLOCK | RTPROCWAIT_FLAGS_BLOCK)) + { + AssertMsgFailed(("Invalid flags %#x\n", fFlags)); + return VERR_INVALID_PARAMETER; + } + + /* + * Perform the wait. + */ + int iStatus = 0; + int rc = waitpid(Process, &iStatus, fFlags & RTPROCWAIT_FLAGS_NOBLOCK ? WNOHANG : 0); + if (rc > 0) + { + /* + * Fill in the status structure. + */ + if (pProcStatus) + { + if (WIFEXITED(iStatus)) + { + pProcStatus->enmReason = RTPROCEXITREASON_NORMAL; + pProcStatus->iStatus = WEXITSTATUS(iStatus); + } + else if (WIFSIGNALED(iStatus)) + { + pProcStatus->enmReason = RTPROCEXITREASON_SIGNAL; + pProcStatus->iStatus = WTERMSIG(iStatus); + } + else + { + Assert(!WIFSTOPPED(iStatus)); + pProcStatus->enmReason = RTPROCEXITREASON_ABEND; + pProcStatus->iStatus = iStatus; + } + } + return VINF_SUCCESS; + } + + /* + * Child running? + */ + if (!rc) + { + Assert(fFlags & RTPROCWAIT_FLAGS_NOBLOCK); + return VERR_PROCESS_RUNNING; + } + + /* + * Figure out which error to return. + */ + int iErr = errno; + if (iErr == ECHILD) + return VERR_PROCESS_NOT_FOUND; + return RTErrConvertFromErrno(iErr); +} + + +RTR3DECL(int) RTProcTerminate(RTPROCESS Process) +{ + if (Process == NIL_RTPROCESS) + return VINF_SUCCESS; + + if (!kill(Process, SIGKILL)) + return VINF_SUCCESS; + return RTErrConvertFromErrno(errno); +} + + +RTR3DECL(uint64_t) RTProcGetAffinityMask(void) +{ + /// @todo + return 1; +} + + +RTR3DECL(int) RTProcQueryParent(RTPROCESS hProcess, PRTPROCESS phParent) +{ + if (hProcess == RTProcSelf()) + { + *phParent = getppid(); + return VINF_SUCCESS; + } + return VERR_NOT_SUPPORTED; +} + + +RTR3DECL(int) RTProcQueryUsername(RTPROCESS hProcess, char *pszUser, size_t cbUser, size_t *pcbUser) +{ + AssertReturn( (pszUser && cbUser > 0) + || (!pszUser && !cbUser), VERR_INVALID_PARAMETER); + AssertReturn(pcbUser || pszUser, VERR_INVALID_PARAMETER); + + int rc; + if ( hProcess == NIL_RTPROCESS + || hProcess == RTProcSelf()) + { + /* + * Figure a good buffer estimate. + */ + int32_t cbPwdMax = sysconf(_SC_GETPW_R_SIZE_MAX); + if (cbPwdMax <= _1K) + cbPwdMax = _1K; + else + AssertStmt(cbPwdMax <= 32*_1M, cbPwdMax = 32*_1M); + char *pchBuf = (char *)RTMemTmpAllocZ(cbPwdMax); + if (pchBuf) + { + /* + * Get the password file entry. + */ + struct passwd Pwd; + struct passwd *pPwd = NULL; + rc = getpwuid_r(geteuid(), &Pwd, pchBuf, cbPwdMax, &pPwd); + if (!rc) + { + /* + * Convert the name to UTF-8, assuming that we're getting it in the local codeset. + */ + /** @todo This isn't exactly optimal... the current codeset/page conversion + * stuff never was. Should optimize that for UTF-8 and ASCII one day. + * And also optimize for avoiding heap. */ + char *pszTmp = NULL; + rc = RTStrCurrentCPToUtf8(&pszTmp, pPwd->pw_name); + if (RT_SUCCESS(rc)) + { + size_t cbTmp = strlen(pszTmp) + 1; + if (pcbUser) + *pcbUser = cbTmp; + if (cbTmp <= cbUser) + { + memcpy(pszUser, pszTmp, cbTmp); + rc = VINF_SUCCESS; + } + else + rc = VERR_BUFFER_OVERFLOW; + RTStrFree(pszTmp); + } + } + else + rc = RTErrConvertFromErrno(rc); + RTMemFree(pchBuf); + } + else + rc = VERR_NO_TMP_MEMORY; + } + else + rc = VERR_NOT_SUPPORTED; + return rc; +} + + +RTR3DECL(int) RTProcQueryUsernameA(RTPROCESS hProcess, char **ppszUser) +{ + AssertPtrReturn(ppszUser, VERR_INVALID_POINTER); + + int rc; + if ( hProcess == NIL_RTPROCESS + || hProcess == RTProcSelf()) + { + /* + * Figure a good buffer estimate. + */ + int32_t cbPwdMax = sysconf(_SC_GETPW_R_SIZE_MAX); + if (cbPwdMax <= _1K) + cbPwdMax = _1K; + else + AssertStmt(cbPwdMax <= 32*_1M, cbPwdMax = 32*_1M); + char *pchBuf = (char *)RTMemTmpAllocZ(cbPwdMax); + if (pchBuf) + { + /* + * Get the password file entry. + */ + struct passwd Pwd; + struct passwd *pPwd = NULL; + rc = getpwuid_r(geteuid(), &Pwd, pchBuf, cbPwdMax, &pPwd); + if (!rc) + { + /* + * Convert the name to UTF-8, assuming that we're getting it in the local codeset. + */ + rc = RTStrCurrentCPToUtf8(ppszUser, pPwd->pw_name); + } + else + rc = RTErrConvertFromErrno(rc); + RTMemFree(pchBuf); + } + else + rc = VERR_NO_TMP_MEMORY; + } + else + rc = VERR_NOT_SUPPORTED; + return rc; +} + |