Category : Files from Magazines
Archive   : PCTV1N1.ZIP
Filename : L2.C

 
Output of file : L2.C contained in archive : PCTV1N1.ZIP
/*
* *** Listing 2 ***
*
* Program to calculate the 16-bit checksum of the stream of bytes
* from the specified file. Obtains the bytes one at a time in
* assembler, via direct calls to DOS.
*/
#include
#include

main(int argc, char *argv[]) {
int Handle;
unsigned char Byte;
unsigned int Checksum;
int ReadLength;

if ( argc != 2 ) {
printf("usage: checksum filename\n");
exit(1);
}

if ( (Handle = open(argv[1], O_RDONLY | O_BINARY)) == -1 ) {
printf("Can't open file: %s\n", argv[1]);
exit(1);
}

if ( !ChecksumFile(Handle, &Checksum) ) {
printf("Error reading file %s\n", argv[1]);
exit(1);
}

/* Report the result */
printf("The checksum is: %u\n", Checksum);

exit(0);
}



  3 Responses to “Category : Files from Magazines
Archive   : PCTV1N1.ZIP
Filename : L2.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/