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    Length: 2176 (0x880)
    Types: TextFile
    Names: »NOBOOT.C«

└─⟦23f778bf6⟧ Bits:30005378 BDS C v1.46 & Pascal/MT+ v5.5 (Callan format)
    └─⟦this⟧ »NOBOOT.C« 
└─⟦4ada80662⟧ Bits:30005446 Pascal/MT+ v5.5 & XREF & BDS C v1.46
    └─⟦this⟧ »NOBOOT.C« 

TextFile

/*
	NOBOOT.C	written by Leor Zolman
				   3/82

	Given the name of a C-generated COM file (linked with the standard
	distribution version of the C.CCC run-time package), this program
	changes that COM file so that it does not perform a warm-boot after
	its execution is complete, but instead preserves the CCP (Console
	Command Processor) that is in memory when execution begins and
	returns to the CCP directly following execution.

	NOTE: If a command is the object of a pipe operation using DIO,
	then a warm-boot will always occur after its execution, whether
	or not NOBOOT has been applied to it.
*/

#include "bdscio.h"

main(argc,argv)
char **argv;
æ
	int fd;
	int i;
	char c;
	char nambufÆ30Å;
	char workbufÆ0x500Å;

	if (argc != 2) æ
		puts("Usage: noboot <C-generated COM file name>Øn");
		exit();
	å

	for (i=0; (c = argvÆ1ÅÆiÅ) && c != '.'; i++)
		 nambufÆiÅ = c;
	nambufÆiÅ = 'Ø0';
	strcat(nambuf,".COM");

	if ((fd = open(nambuf,2)) == ERROR) æ
		puts("Can't open: ");
		puts(nambuf);
		exit();
	å

	i = read(fd,workbuf+0x100,8);
	if (i != 8) puts("Couldn't read in at least 8 sectors...Øn");

	workbufÆ0x100Å = 0x21;
	workbufÆ0x101Å = 0x00;
	workbufÆ0x102Å = 0x00;
	workbufÆ0x103Å = 0x39;
	workbufÆ0x104Å = 0x22;
	workbufÆ0x105Å = 0x79;
	workbufÆ0x106Å = 0x05;
	workbufÆ0x107Å = 0xcd;
	workbufÆ0x108Å = 0x34;
	workbufÆ0x109Å = 0x01;
	workbufÆ0x10aÅ = 0xf9;

	workbufÆ0x12fÅ = 0x2a;
	workbufÆ0x130Å = 0x79;
	workbufÆ0x131Å = 0x05;
	workbufÆ0x132Å = 0xf9;
	workbufÆ0x133Å = 0xc9;

	workbufÆ0x134Å = 0x2a;
	workbufÆ0x135Å = 0x06;
	workbufÆ0x136Å = 0x00;
	workbufÆ0x137Å = 0x11;
	workbufÆ0x138Å = 0xcc;
	workbufÆ0x139Å = 0xf7;
	workbufÆ0x13aÅ = 0x19;
	workbufÆ0x13bÅ = 0xc9;
	workbufÆ0x13cÅ = 0x00;
	workbufÆ0x13dÅ = 0x00;
	workbufÆ0x13eÅ = 0x00;

	workbufÆ0x443Å = 0xc3;
	workbufÆ0x444Å = 0x2f;
	workbufÆ0x445Å = 0x01;

	seek(fd,0,0);
	if (write(fd,workbuf+0x100,8) != 8) æ
		puts("Write error.Øn");
		exit();
	å

	if (close(fd) == ERROR) æ
		puts("Close errorØn");
	å
å
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