| 1 | /** $Id: VBoxService-os2.cpp 4071 2007-08-07 17:07:59Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxService - Guest Additions Service Skeleton.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007 innotek GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | /*******************************************************************************
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| 19 | * Global Variables *
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| 20 | *******************************************************************************/
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| 21 | #ifdef RT_OS_OS2
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| 22 | # define INCL_BASE
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| 23 | # define INCL_ERRORS
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| 24 | # include <os2.h>
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| 25 | #endif
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| 26 | #include <errno.h>
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| 27 |
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| 28 | #include <iprt/string.h>
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| 29 | #include <iprt/alloca.h>
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| 30 | #include <VBox/VBoxGuest.h>
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| 31 | #include "VBoxServiceInternal.h"
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| 32 |
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| 33 |
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| 34 | /**
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| 35 | * OS/2 emulation of the BSD daemon() call.
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| 36 | */
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| 37 | int daemon(int nochdir, int noclose)
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| 38 | {
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| 39 | PPIB pPib;
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| 40 | PTIB pTib;
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| 41 | DosGetInfoBlocks(&pTib, &pPib);
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| 42 |
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| 43 | /* Get the full path to the executable. */
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| 44 | char szExe[CCHMAXPATH];
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| 45 | APIRET rc = DosQueryModuleName(pPib->pib_hmte, sizeof(szExe), szExe);
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| 46 | if (rc)
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| 47 | {
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| 48 | errno = EDOOFUS;
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| 49 | return -1;
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| 50 | }
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| 51 |
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| 52 | /* calc the length of the command line. */
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| 53 | char *pch = pPib->pib_pchcmd;
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| 54 | size_t cch0 = strlen(pch);
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| 55 | pch += cch0 + 1;
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| 56 | size_t cch1 = strlen(pch);
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| 57 | pch += cch1 + 1;
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| 58 | char *pchArgs;
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| 59 | if (cch1 && *pch)
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| 60 | {
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| 61 | do pch = strchr(pch, '\0') + 1;
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| 62 | while (*pch);
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| 63 |
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| 64 | size_t cchTotal = pch - pPib->pib_pchcmd;
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| 65 | pchArgs = (char *)alloca(cchTotal + sizeof("--daemonized\0\0"));
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| 66 | memcpy(pchArgs, pPib->pib_pchcmd, cchTotal - 1);
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| 67 | memcpy(pchArgs + cchTotal - 1, "--daemonized\0\0", sizeof("--daemonized\0\0"));
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| 68 | }
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| 69 | else
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| 70 | {
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| 71 | size_t cchTotal = pch - pPib->pib_pchcmd + 1;
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| 72 | pchArgs = (char *)alloca(cchTotal + sizeof(" --daemonized "));
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| 73 | memcpy(pchArgs, pPib->pib_pchcmd, cch0 + 1);
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| 74 | pch = pchArgs + cch0 + 1;
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| 75 | memcpy(pch, " --daemonized ", sizeof(" --daemonized ") - 1);
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| 76 | pch += sizeof(" --daemonized ") - 1;
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| 77 | if (cch1)
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| 78 | memcpy(pch, pPib->pib_pchcmd + cch0 + 1, cch1 + 2);
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| 79 | else
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| 80 | pch[0] = pch[1] = '\0';
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| 81 | }
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| 82 |
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| 83 | /* spawn a detach process */
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| 84 | char szObj[128];
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| 85 | RESULTCODES ResCodes = { 0, 0 };
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| 86 | szObj[0] = '\0';
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| 87 | rc = DosExecPgm(szObj, sizeof(szObj), EXEC_BACKGROUND, (PCSZ)pchArgs, NULL, &ResCodes, (PCSZ)szExe);
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| 88 | if (rc)
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| 89 | {
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| 90 | VBoxServiceError("DosExecPgm failed with rc=%d and szObj='%s'\n", rc, szObj);
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| 91 | errno = EDOOFUS;
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| 92 | return -1;
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| 93 | }
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| 94 | DosExit(EXIT_PROCESS, 0);
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| 95 | return -1;
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| 96 | }
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| 97 |
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| 98 |
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