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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
This commit is contained in:
Colin Finck
parent
b94e2d8ca0
commit
c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
257
sdk/lib/dnslib/string.c
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257
sdk/lib/dnslib/string.c
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS DNS Shared Library
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* FILE: lib/dnslib/string.c
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* PURPOSE: functions for string manipulation and conversion.
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*/
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/* INCLUDES ******************************************************************/
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#include "precomp.h"
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/* DATA **********************************************************************/
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/* FUNCTIONS *****************************************************************/
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ULONG
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WINAPI
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Dns_StringCopy(OUT PVOID Destination,
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IN OUT PULONG DestinationSize,
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IN PVOID String,
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IN ULONG StringSize OPTIONAL,
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IN DWORD InputType,
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IN DWORD OutputType)
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{
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ULONG DestSize;
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ULONG OutputSize = 0;
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/* Check if the caller already gave us the string size */
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if (!StringSize)
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{
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/* He didn't, get the input type */
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if (InputType == UnicodeString)
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{
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/* Unicode string, calculate the size */
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StringSize = (ULONG)wcslen((LPWSTR)String);
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}
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else
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{
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/* ANSI or UTF-8 sting, get the size */
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StringSize = (ULONG)strlen((LPSTR)String);
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}
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}
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/* Check if we have a limit on the desination size */
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if (DestinationSize)
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{
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/* Make sure that we can respect it */
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DestSize = Dns_GetBufferLengthForStringCopy(String,
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StringSize,
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InputType,
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OutputType);
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if (*DestinationSize < DestSize)
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{
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/* Fail due to missing buffer space */
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SetLastError(ERROR_MORE_DATA);
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/* Return how much data we actually need */
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*DestinationSize = DestSize;
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return 0;
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}
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else if (!DestSize)
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{
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/* Fail due to invalid data */
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SetLastError(ERROR_INVALID_DATA);
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return 0;
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}
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/* Return how much data we actually need */
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*DestinationSize = DestSize;
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}
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/* Now check if this is a Unicode String as input */
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if (InputType == UnicodeString)
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{
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/* Check if the output is ANSI */
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if (OutputType == AnsiString)
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{
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/* Convert and return the final desination size */
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OutputSize = WideCharToMultiByte(CP_ACP,
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0,
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String,
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StringSize,
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Destination,
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-1,
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NULL,
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NULL) + 1;
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}
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else if (OutputType == UnicodeString)
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{
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/* Copy the string */
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StringSize = StringSize * sizeof(WCHAR);
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RtlMoveMemory(Destination, String, StringSize);
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/* Return output length */
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OutputSize = StringSize + 2;
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}
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else if (OutputType == Utf8String)
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{
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/* FIXME */
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OutputSize = 0;
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}
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}
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else if (InputType == AnsiString)
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{
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/* It's ANSI, is the output ansi too? */
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if (OutputType == AnsiString)
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{
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/* Copy the string */
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RtlMoveMemory(Destination, String, StringSize);
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/* Return output length */
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OutputSize = StringSize + 1;
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}
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else if (OutputType == UnicodeString)
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{
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/* Convert to Unicode and return size */
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OutputSize = MultiByteToWideChar(CP_ACP,
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0,
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String,
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StringSize,
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Destination,
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-1) * sizeof(WCHAR) + 2;
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}
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else if (OutputType == Utf8String)
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{
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/* FIXME */
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OutputSize = 0;
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}
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}
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else if (InputType == Utf8String)
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{
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/* FIXME */
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OutputSize = 0;
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}
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/* Return the output size */
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return OutputSize;
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}
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LPWSTR
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WINAPI
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Dns_CreateStringCopy_W(IN LPWSTR Name)
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{
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SIZE_T StringLength;
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LPWSTR NameCopy;
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/* Make sure that we have a name */
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if (!Name)
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{
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/* Fail */
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SetLastError(ERROR_INVALID_PARAMETER);
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return NULL;
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}
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/* Find out the size of the string */
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StringLength = (wcslen(Name) + 1) * sizeof(WCHAR);
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/* Allocate space for the copy */
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NameCopy = Dns_AllocZero(StringLength);
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if (NameCopy)
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{
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/* Copy it */
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RtlCopyMemory(NameCopy, Name, StringLength);
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}
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else
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{
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/* Fail */
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SetLastError(ERROR_NOT_ENOUGH_MEMORY);
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}
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/* Return the copy */
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return NameCopy;
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}
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ULONG
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WINAPI
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Dns_GetBufferLengthForStringCopy(IN PVOID String,
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IN ULONG Size OPTIONAL,
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IN DWORD InputType,
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IN DWORD OutputType)
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{
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ULONG OutputSize = 0;
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/* Check what kind of string this is */
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if (InputType == UnicodeString)
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{
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/* Check if we have a size */
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if (!Size)
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{
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/* Get it ourselves */
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Size = (ULONG)wcslen(String);
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}
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/* Check the output type */
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if (OutputType == UnicodeString)
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{
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/* Convert the size to bytes */
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OutputSize = (Size + 1) * sizeof(WCHAR);
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}
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else if (OutputType == Utf8String)
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{
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/* FIXME */
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OutputSize = 0;
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}
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else
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{
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/* Find out how much it will be in ANSI bytes */
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OutputSize = WideCharToMultiByte(CP_ACP,
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0,
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String,
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Size,
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NULL,
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0,
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NULL,
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NULL) + 1;
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}
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}
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else if (InputType == AnsiString)
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{
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/* Check if we have a size */
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if (!Size)
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{
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/* Get it ourselves */
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Size = (ULONG)strlen(String);
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}
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/* Check the output type */
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if (OutputType == AnsiString)
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{
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/* Just add a byte for the null char */
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OutputSize = Size + 1;
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}
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else if (OutputType == UnicodeString)
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{
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/* Calculate the bytes for a Unicode string */
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OutputSize = (MultiByteToWideChar(CP_ACP,
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0,
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String,
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Size,
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NULL,
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0) + 1) * sizeof(WCHAR);
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}
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else if (OutputType == Utf8String)
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{
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/* FIXME */
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OutputSize = 0;
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}
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}
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else if (InputType == Utf8String)
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{
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/* FIXME */
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OutputSize = 0;
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}
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/* Return the size required */
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return OutputSize;
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}
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