132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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blmisc.c
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Abstract:
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This module contains miscellaneous routines for use by
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the boot loader and setupldr.
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Author:
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David N. Cutler (davec) 10-May-1991
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Revision History:
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--*/
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#include "bootlib.h"
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//
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// Value indicating whether a dbcs locale is active.
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// If this value is non-0 we use alternate display routines, etc,
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// and fetch messages in this language.
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//
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ULONG DbcsLangId;
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PCHAR
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BlGetArgumentValue (
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IN ULONG Argc,
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IN PCHAR Argv[],
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IN PCHAR ArgumentName
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)
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/*++
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Routine Description:
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This routine scans the specified argument list for the named argument
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and returns the address of the argument value. Argument strings are
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specified as:
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ArgumentName=ArgumentValue
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Argument names are specified as:
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ArgumentName=
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The argument name match is case insensitive.
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Arguments:
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Argc - Supplies the number of argument strings that are to be scanned.
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Argv - Supplies a pointer to a vector of pointers to null terminated
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argument strings.
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ArgumentName - Supplies a pointer to a null terminated argument name.
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Return Value:
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If the specified argument name is located, then a pointer to the argument
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value is returned as the function value. Otherwise, a value of NULL is
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returned.
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--*/
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{
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PCHAR Name;
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PCHAR String;
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//
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// Scan the argument strings until either a match is found or all of
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// the strings have been scanned.
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//
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while (Argc > 0) {
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String = Argv[Argc - 1];
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if (String != NULL) {
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Name = ArgumentName;
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while ((*Name != 0) && (*String != 0)) {
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if (toupper(*Name) != toupper(*String)) {
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break;
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}
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Name += 1;
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String += 1;
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}
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if ((*Name == 0) && (*String == '=')) {
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return String + 1;
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}
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Argc -= 1;
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}
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}
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return NULL;
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}
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//
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// Line draw chars -- different scheme in Far East vs. SBCS
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//
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UCHAR
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GetGraphicsChar(
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IN GraphicsChar WhichOne
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)
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{
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#ifdef _X86_
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UCHAR TextGetGraphicsCharacter(GraphicsChar);
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return(TextGetGraphicsCharacter(WhichOne));
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#else
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//
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// ARC machines don't support dbcs for now
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//
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static UCHAR ArcGraphicsChars[GraphicsCharMax] = { (UCHAR)'\311', // right-down
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(UCHAR)'\273', // left-down
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(UCHAR)'\310', // right-up
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(UCHAR)'\274', // left-up
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(UCHAR)'\272', // vertical
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(UCHAR)'\315' // horizontal
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};
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return(((unsigned)WhichOne < (unsigned)GraphicsCharMax) ? ArcGraphicsChars[WhichOne] : ' ');
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#endif
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}
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