| 1 | /* $Id: k32QueryOTEs.cpp,v 1.2 2000-09-02 21:08:05 bird Exp $
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| 2 | *
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| 3 | * k32QueryOTEs - Get's the object table entries (OTEs) for a given
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| 4 | * module (given by a module handle).
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| 5 | *
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| 6 | * Copyright (c) 2000 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
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| 7 | *
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| 8 | * Project Odin Software License can be found in LICENSE.TXT
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| 9 | *
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| 10 | */
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| 11 |
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| 12 |
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| 13 | /*******************************************************************************
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| 14 | * Defined Constants And Macros *
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| 15 | *******************************************************************************/
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| 16 | #define INCL_DOSMEMMGR
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| 17 | #define INCL_DOSERRORS
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| 18 |
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| 19 | #define INCL_OS2KRNL_TK
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| 20 | #define INCL_OS2KRNL_SEM
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| 21 |
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| 22 | #define NO_WIN32K_LIB_FUNCTIONS
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| 23 |
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| 24 | /*******************************************************************************
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| 25 | * Header Files *
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| 26 | *******************************************************************************/
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| 27 | #include <os2.h>
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| 28 | #include "devSegDf.h" /* Win32k segment definitions. */
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| 29 | #include "OS2Krnl.h"
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| 30 | #include "ldrCalls.h"
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| 31 | #include "win32k.h"
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| 32 | #include "k32.h"
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| 33 | #include "options.h"
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| 34 | #include "dev32.h"
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| 35 | #include "log.h"
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| 36 |
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| 37 |
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| 38 | /**
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| 39 | * Gets the object table entries for a module.
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| 40 | * @returns OS2 returncode.
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| 41 | * @param hMTE Module handle (HMTE) of the module.
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| 42 | * @param pQOte Pointer to output buffer.
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| 43 | * @param cbQOte Size (in bytes) of the output buffer.
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| 44 | * @status completely implelemented.
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| 45 | * @author knut st. osmundsen (knut.stange.osmundsen@mynd.no)
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| 46 | * @remark
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| 47 | */
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| 48 | APIRET k32QueryOTEs(HMTE hMTE, PQOTEBUFFER pQOte, ULONG cbQOte)
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| 49 | {
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| 50 | APIRET rc;
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| 51 | PMTE pMTE;
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| 52 |
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| 53 | /*
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| 54 | * Validate parameters.
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| 55 | * Ensure that the buffer pointer is sensible.
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| 56 | * Ensure that the buffer not less than minimum size.
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| 57 | */
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| 58 | if ((ULONG)pQOte < 0x10000 || cbQOte < sizeof(QOTEBUFFER))
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| 59 | return ERROR_INVALID_PARAMETER;
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| 60 |
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| 61 | /*
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| 62 | * Take loader semaphore. (We are accessing LDR structures.)
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| 63 | */
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| 64 | rc = LDRRequestSem();
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| 65 | if (rc != NO_ERROR)
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| 66 | {
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| 67 | kprintf(("k32QueryOTEs: LDRRequestSem failed with rc = %d\n", rc));
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| 68 | return rc;
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| 69 | }
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| 70 |
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| 71 | /*
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| 72 | * Validate and get the MTE pointer.
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| 73 | */
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| 74 | pMTE = ldrValidateMteHandle(hMTE);
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| 75 | if (pMTE != NULL && pMTE->mte_swapmte != NULL)
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| 76 | {
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| 77 | /*
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| 78 | * Copy data to the output buffer.
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| 79 | * 1) First we'll copy the object number.
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| 80 | * If this failes or no object we'll bailout/return.
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| 81 | * 2) Then we'll check if the buffer is large enough to hold the
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| 82 | * object info.
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| 83 | * 3) Check if LX executable and copy the OTEs to the output buffer.
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| 84 | * If not LX fail.
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| 85 | */
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| 86 | rc = TKSuULongNF(&pQOte->cOTEs, &pMTE->mte_swapmte->smte_objcnt);
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| 87 | if (rc != NO_ERROR || pQOte->cOTEs == 0)
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| 88 | goto bailout;
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| 89 |
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| 90 | if ((pMTE->mte_swapmte->smte_objcnt * sizeof(QOTE)) + (sizeof(QOTEBUFFER) - sizeof(QOTE))
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| 91 | > cbQOte)
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| 92 | {
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| 93 | rc = ERROR_BUFFER_OVERFLOW;
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| 94 | goto bailout;
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| 95 | }
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| 96 |
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| 97 | if (pMTE->mte_flags2 & MTEFORMATLX)
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| 98 | {
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| 99 | rc = TKSuBuff(pQOte->aOTE,
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| 100 | pMTE->mte_swapmte->smte_objtab,
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| 101 | pMTE->mte_swapmte->smte_objcnt * sizeof(OTE),
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| 102 | TK_FUSU_NONFATAL);
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| 103 | }
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| 104 | else
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| 105 | rc = ERROR_BAD_EXE_FORMAT;
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| 106 | }
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| 107 | else
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| 108 | rc = ERROR_INVALID_HANDLE;
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| 109 |
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| 110 | bailout:
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| 111 | /*
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| 112 | * Felease loader semaphore and return
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| 113 | */
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| 114 | LDRClearSem();
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| 115 |
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| 116 | return rc;
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| 117 | }
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| 118 |
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