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