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lastdriv.c
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C/C++ Source or Header
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1990-10-21
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862b
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42 lines
/*********
*
* LASTDRIV.C
*
* by Ralph Davis
* modified by Tom Rettig, Leonard Zerman
*
* Placed in the public domain by Tom Rettig Associates, 10/22/1990.
*
* Syntax: LASTDRIVE()
* Return: <expC> indicating lastdrive on LASTDRIVE= line in CONFIG.SYS
*********/
#include "trlib.h"
TRTYPE lastdrive()
{
char *confparm = "LASTDRIVE";
static char drivestr[3];
int temp;
/* _tr_doscnf can return either a char value or an int error code */
temp = (int) _tr_doscnf(confparm);
switch ( temp )
{
case -1:
drivestr[0] = '-';
drivestr[1] = '1';
break;
case 0:
drivestr[0] = '0';
drivestr[1] = NULLC;
break;
default:
drivestr[0] = temp;
drivestr[1] = NULLC;
}
drivestr[2] = NULLC;
_retc(drivestr);
}