add directory images
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gohigh
182
images/Tools/rawrite.c
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182
images/Tools/rawrite.c
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/*
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rawrite.c Write a binary image to a 360K diskette.
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By Mark Becker
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Usage:
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MS-DOS prompt> RAWRITE
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And follow the prompts.
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History
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-------
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1.0 - Initial release
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1.1 - Beta test (fixing bugs) 4/5/91
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Some BIOS's don't like full-track writes.
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1.101 - Last beta release. 4/8/91
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Fixed BIOS full-track write by only
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writing 3 sectors at a time.
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1.2 - Final code and documentation clean-ups. 4/9/91
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*/
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#include <alloc.h>
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#include <bios.h>
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#include <ctype.h>
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#include <dir.h>
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#include <dos.h>
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#include <io.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define FALSE 0
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#define TRUE (!FALSE)
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#define SECTORSIZE 512
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#define RESET 0
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#define LAST 1
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#define READ 2
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#define WRITE 3
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#define VERIFY 4
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#define FORMAT 5
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int done;
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/*
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Catch ^C and ^Break.
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*/
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int handler(void)
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{
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done = TRUE;
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return(0);
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}
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void msg(char (*s))
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{
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fprintf(stderr, "%s\n", s);
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_exit(1);
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}
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/*
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Identify the error code with a real error message.
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*/
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void Error(int (status))
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{
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switch (status) {
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case 0x00: msg("Operation Successful"); break;
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case 0x01: msg("Bad command"); break;
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case 0x02: msg("Address mark not found"); break;
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case 0x03: msg("Attempt to write on write-protected disk"); break;
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case 0x04: msg("Sector not found"); break;
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case 0x05: msg("Reset failed (hard disk)"); break;
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case 0x06: msg("Disk changed since last operation"); break;
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case 0x07: msg("Drive parameter activity failed"); break;
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case 0x08: msg("DMA overrun"); break;
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case 0x09: msg("Attempt to DMA across 64K boundary"); break;
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case 0x0A: msg("Bad sector detected"); break;
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case 0x0B: msg("Bad track detected"); break;
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case 0x0C: msg("Unsupported track"); break;
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case 0x10: msg("Bad CRC/ECC on disk read"); break;
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case 0x11: msg("CRC/ECC corrected data error"); break;
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case 0x20: msg("Controller has failed"); break;
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case 0x40: msg("Seek operation failed"); break;
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case 0x80: msg("Attachment failed to respond"); break;
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case 0xAA: msg("Drive not ready (hard disk only"); break;
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case 0xBB: msg("Undefined error occurred (hard disk only)"); break;
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case 0xCC: msg("Write fault occurred"); break;
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case 0xE0: msg("Status error"); break;
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case 0xFF: msg("Sense operation failed"); break;
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}
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_exit(1);
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}
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/*
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Identify what kind of diskette is installed in the specified drive.
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Return the number of sectors per track assumed as follows:
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9 - 360 K and 720 K 5.25".
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15 - 1.2 M HD 5.25".
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18 - 1.44 M 3.5".
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*/
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int nsects(int (drive))
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{
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static int nsect[] = {18, 15, 9};
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char *buffer;
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int i, status;
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/*
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Read sector 1, head 0, track 0 to get the BIOS running.
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*/
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buffer = (char *)malloc(SECTORSIZE);
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biosdisk(RESET, drive, 0, 0, 0, 0, buffer);
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status = biosdisk(READ, drive, 0, 10, 1, 1, buffer);
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if (status == 0x06) /* Door signal change? */
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status = biosdisk(READ, drive, 0, 0, 1, 1, buffer);
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for (i=0; i < sizeof(nsect)/sizeof(int); ++i) {
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biosdisk(RESET, drive, 0, 0, 0, 0, buffer);
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status = biosdisk(READ, drive, 0, 0, nsect[i], 1, buffer);
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if (status == 0x06)
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status = biosdisk(READ, drive, 0, 0, nsect[i], 1, buffer);
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if (status == 0x00) break;
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}
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if (i == sizeof(nsect)/sizeof(int)) {
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msg("Can't figure out how many sectors/track for this diskette.");
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}
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free(buffer);
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return(nsect[i]);
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}
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void main(void)
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{
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char fname[MAXPATH];
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char *buffer, *pbuf;
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int count, fdin, drive, head, track, status, spt, buflength, ns;
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puts("RaWrite 1.2 - Write disk file to raw floppy diskette\n");
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ctrlbrk(handler);
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printf("Enter source file name: ");
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scanf("%s", fname);
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_fmode = O_BINARY;
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if ((fdin = open(fname, O_RDONLY)) <= 0) {
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perror(fname);
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exit(1);
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}
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printf("Enter destination drive: ");
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scanf("%s", fname);
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drive = fname[0];
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drive = (islower(drive) ? toupper(drive) : drive) - 'A';
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printf("Please insert a formatted diskette into ");
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printf("drive %c: and press -ENTER- :", drive + 'A');
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while (bioskey(1) == 0) ; /* Wait... */
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if ((bioskey(0) & 0x7F) == 3) exit(1); /* Check for ^C */
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putchar('\n');
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done = FALSE;
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/*
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* Determine number of sectors per track and allocate buffers.
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*/
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spt = nsects(drive);
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buflength = spt * SECTORSIZE;
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buffer = (char *)malloc(buflength);
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printf("Number of sectors per track for this disk is %d\n", spt);
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printf("Writing image to drive %c:. Press ^C to abort.\n", drive+'A');
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/*
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* Start writing data to diskette until there is no more data to write.
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*/
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head = track = 0;
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while ((count = read(fdin, buffer, buflength)) > 0 && !done) {
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pbuf = buffer;
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for (ns = 1; count > 0 && !done; ns+=3) {
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printf("Track: %02d Head: %2d Sector: %2d\r", track, head, ns);
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status = biosdisk(WRITE, drive, head, track, ns, 3, pbuf);
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if (status != 0) Error(status);
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count -= (3*SECTORSIZE);
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pbuf += (3*SECTORSIZE);
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}
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if ((head = (head + 1) & 1) == 0) ++track;
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}
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if (eof(fdin)) {
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printf("\nDone.\n");
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biosdisk(2, drive, 0, 0, 1, 1, buffer); /* Retract head */
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}
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} /* end main */
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86
images/Tools/rawrite.doc
Normal file
86
images/Tools/rawrite.doc
Normal file
@@ -0,0 +1,86 @@
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RaWrite 1.2
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-----------
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Purpose
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-------
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Write a disk image file to a 360K floppy disk.
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Equipment/Software Requirements
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-------------------------------
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PC/XT/AT with a floppy disk drive capable of reading and writing a 360K
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diskette.
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This program uses generic low-level BIOS diskette read/write functions. It
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should be portable to nearly every PC in existance. PS/2's should be able
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to run RawWrite but this has not been tested.
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CAVEAT
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------
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This program will write ANY disk file to a floppy, overwriting any previous
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information that may have been present. If you wish to re-use a diskette
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under MS-DOS thats been written to by RawWrite then the disk will need to be
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reformatted; all MS-DOS specific information will have been erased.
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How to Compile
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--------------
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TCC rawrite.c
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The source code is specific to Borland International's Turbo C 2.01 and has
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been tested in all memory models.
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Usage
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-----
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C> RAWRITE
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And follow the prompts. All arguments are case-insensitive.
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A sample run is shown below. The disk file being written, in this example,
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is named DEMODISK and the destination - where the image is being written -
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is the B: drive.
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This program may be aborted at any time by typing ^C.
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Sample Run
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----------
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C> RAWRITE
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RaWrite 1.2 - Write disk file to raw floppy diskette
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Enter source file name: DEMODISK
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Enter destination drive: B
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Please insert a formatted 360K diskette into drive B: and press -ENTER- :
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Writing image to drive B:
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Errors
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------
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RaWrite attempts to determine if the diskette is a 360K, 720K, 1.2M, or
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1.44M diskette by reading specific sectors. If the inserted diskette is not
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one of the mentioned types, then RaWrite will abort with a short error
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message.
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Errors such as write protect, door open, bad disk, bad sector, etc. cause a
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program abort with a short error message.
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History
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-------
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1.0 - Initial release
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1.1 - Beta test (fixing bugs) 4/5/91
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Some BIOS's don't like full-track writes.
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1.101 - Last beta release. 4/8/91
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Fixed BIOS full-track write by only only
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writing 3 sectors at a time.
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1.2 - Final code and documentation clean-ups. 4/9/91
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