diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/ntdrv/stdlib.c')
-rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/ntdrv/stdlib.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/ntdrv/stdlib.c b/board/MAI/bios_emulator/scitech/src/pm/ntdrv/stdlib.c new file mode 100644 index 0000000..d770513 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/ntdrv/stdlib.c @@ -0,0 +1,140 @@ +/**************************************************************************** +* +* SciTech OS Portability Manager Library +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* Language: ANSI C +* Environment: 32-bit Windows NT driver +* +* Description: C library compatible stdlib.h functions for use within a +* Windows NT driver. +* +****************************************************************************/ + +#include "pmapi.h" +#include "oshdr.h" + +/*------------------------ Main Code Implementation -----------------------*/ + +/**************************************************************************** +REMARKS: +PM_malloc override function for Nucleus drivers loaded in NT drivers's. +****************************************************************************/ +void * malloc( + size_t size) +{ + return PM_mallocShared(size); +} + +/**************************************************************************** +REMARKS: +calloc library function for Nucleus drivers loaded in NT drivers's. +****************************************************************************/ +void * calloc( + size_t nelem, + size_t size) +{ + void *p = PM_mallocShared(nelem * size); + if (p) + memset(p,0,nelem * size); + return p; +} + +/**************************************************************************** +REMARKS: +PM_realloc override function for Nucleus drivers loaded in VxD's. +****************************************************************************/ +void * realloc( + void *ptr, + size_t size) +{ + void *p = PM_mallocShared(size); + if (p) { + memcpy(p,ptr,size); + PM_freeShared(ptr); + } + return p; +} + +/**************************************************************************** +REMARKS: +PM_free override function for Nucleus drivers loaded in VxD's. +****************************************************************************/ +void free( + void *p) +{ + PM_freeShared(p); +} + +/**************************************************************************** +PARAMETERS: +cstr - C style ANSI string to convert + +RETURNS: +Pointer to the UniCode string structure or NULL on failure to allocate memory + +REMARKS: +Converts a C style string to a UniCode string structure that can be passed +directly to NT kernel functions. +****************************************************************************/ +UNICODE_STRING *_PM_CStringToUnicodeString( + const char *cstr) +{ + int length; + ANSI_STRING ansiStr; + UNICODE_STRING *uniStr; + + // Allocate memory for the string structure + if ((uniStr = ExAllocatePool(NonPagedPool, sizeof(UNICODE_STRING))) == NULL) + return NULL; + + // Allocate memory for the wide string itself + length = (strlen(cstr) * sizeof(WCHAR)) + sizeof(WCHAR); + if ((uniStr->Buffer = ExAllocatePool(NonPagedPool, length)) == NULL) { + ExFreePool(uniStr); + return NULL; + } + RtlZeroMemory(uniStr->Buffer, length); + uniStr->Length = 0; + uniStr->MaximumLength = (USHORT)length; + + // Convert filename string to ansi string and then to UniCode string + RtlInitAnsiString(&ansiStr, cstr); + RtlAnsiStringToUnicodeString(uniStr, &ansiStr, FALSE); + return uniStr; +} + +/**************************************************************************** +PARAMETERS: +uniStr - UniCode string structure to free + +REMARKS: +Frees a string allocated by the above _PM_CStringToUnicodeString function. +****************************************************************************/ +void _PM_FreeUnicodeString( + UNICODE_STRING *uniStr) +{ + if (uniStr) { + ExFreePool(uniStr->Buffer); + ExFreePool(uniStr); + } +} + |