rawrite.c revision 1.1.10.2
1 1.1.10.2 jdolecek /* 2 1.1.10.2 jdolecek rawrite.c Write a binary image to a 360K diskette. 3 1.1.10.2 jdolecek By Mark Becker 4 1.1.10.2 jdolecek 5 1.1.10.2 jdolecek Usage: 6 1.1.10.2 jdolecek MS-DOS prompt> RAWRITE 7 1.1.10.2 jdolecek 8 1.1.10.2 jdolecek And follow the prompts. 9 1.1.10.2 jdolecek 10 1.1.10.2 jdolecek History 11 1.1.10.2 jdolecek ------- 12 1.1.10.2 jdolecek 13 1.1.10.2 jdolecek 1.0 - Initial release 14 1.1.10.2 jdolecek 1.1 - Beta test (fixing bugs) 4/5/91 15 1.1.10.2 jdolecek Some BIOS's don't like full-track writes. 16 1.1.10.2 jdolecek 1.101 - Last beta release. 4/8/91 17 1.1.10.2 jdolecek Fixed BIOS full-track write by only 18 1.1.10.2 jdolecek writing 3 sectors at a time. 19 1.1.10.2 jdolecek 1.2 - Final code and documentation clean-ups. 4/9/91 20 1.1.10.2 jdolecek */ 21 1.1.10.2 jdolecek #include <alloc.h> 22 1.1.10.2 jdolecek #include <bios.h> 23 1.1.10.2 jdolecek #include <ctype.h> 24 1.1.10.2 jdolecek #include <dir.h> 25 1.1.10.2 jdolecek #include <dos.h> 26 1.1.10.2 jdolecek #include <io.h> 27 1.1.10.2 jdolecek #include <fcntl.h> 28 1.1.10.2 jdolecek #include <stdio.h> 29 1.1.10.2 jdolecek #include <stdlib.h> 30 1.1.10.2 jdolecek 31 1.1.10.2 jdolecek #define FALSE 0 32 1.1.10.2 jdolecek #define TRUE (!FALSE) 33 1.1.10.2 jdolecek 34 1.1.10.2 jdolecek #define SECTORSIZE 512 35 1.1.10.2 jdolecek 36 1.1.10.2 jdolecek #define RESET 0 37 1.1.10.2 jdolecek #define LAST 1 38 1.1.10.2 jdolecek #define READ 2 39 1.1.10.2 jdolecek #define WRITE 3 40 1.1.10.2 jdolecek #define VERIFY 4 41 1.1.10.2 jdolecek #define FORMAT 5 42 1.1.10.2 jdolecek 43 1.1.10.2 jdolecek int done; 44 1.1.10.2 jdolecek 45 1.1.10.2 jdolecek /* 46 1.1.10.2 jdolecek Catch ^C and ^Break. 47 1.1.10.2 jdolecek */ 48 1.1.10.2 jdolecek int handler(void) 49 1.1.10.2 jdolecek { 50 1.1.10.2 jdolecek done = TRUE; 51 1.1.10.2 jdolecek return(0); 52 1.1.10.2 jdolecek } 53 1.1.10.2 jdolecek void msg(char (*s)) 54 1.1.10.2 jdolecek { 55 1.1.10.2 jdolecek fprintf(stderr, "%s\n", s); 56 1.1.10.2 jdolecek _exit(1); 57 1.1.10.2 jdolecek } 58 1.1.10.2 jdolecek /* 59 1.1.10.2 jdolecek Identify the error code with a real error message. 60 1.1.10.2 jdolecek */ 61 1.1.10.2 jdolecek void Error(int (status)) 62 1.1.10.2 jdolecek { 63 1.1.10.2 jdolecek switch (status) { 64 1.1.10.2 jdolecek case 0x00: msg("Operation Successful"); break; 65 1.1.10.2 jdolecek case 0x01: msg("Bad command"); break; 66 1.1.10.2 jdolecek case 0x02: msg("Address mark not found"); break; 67 1.1.10.2 jdolecek case 0x03: msg("Attempt to write on write-protected disk"); break; 68 1.1.10.2 jdolecek case 0x04: msg("Sector not found"); break; 69 1.1.10.2 jdolecek case 0x05: msg("Reset failed (hard disk)"); break; 70 1.1.10.2 jdolecek case 0x06: msg("Disk changed since last operation"); break; 71 1.1.10.2 jdolecek case 0x07: msg("Drive parameter activity failed"); break; 72 1.1.10.2 jdolecek case 0x08: msg("DMA overrun"); break; 73 1.1.10.2 jdolecek case 0x09: msg("Attempt to DMA across 64K boundary"); break; 74 1.1.10.2 jdolecek case 0x0A: msg("Bad sector detected"); break; 75 1.1.10.2 jdolecek case 0x0B: msg("Bad track detected"); break; 76 1.1.10.2 jdolecek case 0x0C: msg("Unsupported track"); break; 77 1.1.10.2 jdolecek case 0x10: msg("Bad CRC/ECC on disk read"); break; 78 1.1.10.2 jdolecek case 0x11: msg("CRC/ECC corrected data error"); break; 79 1.1.10.2 jdolecek case 0x20: msg("Controller has failed"); break; 80 1.1.10.2 jdolecek case 0x40: msg("Seek operation failed"); break; 81 1.1.10.2 jdolecek case 0x80: msg("Attachment failed to respond"); break; 82 1.1.10.2 jdolecek case 0xAA: msg("Drive not ready (hard disk only"); break; 83 1.1.10.2 jdolecek case 0xBB: msg("Undefined error occurred (hard disk only)"); break; 84 1.1.10.2 jdolecek case 0xCC: msg("Write fault occurred"); break; 85 1.1.10.2 jdolecek case 0xE0: msg("Status error"); break; 86 1.1.10.2 jdolecek case 0xFF: msg("Sense operation failed"); break; 87 1.1.10.2 jdolecek } 88 1.1.10.2 jdolecek _exit(1); 89 1.1.10.2 jdolecek } 90 1.1.10.2 jdolecek 91 1.1.10.2 jdolecek /* 92 1.1.10.2 jdolecek Identify what kind of diskette is installed in the specified drive. 93 1.1.10.2 jdolecek Return the number of sectors per track assumed as follows: 94 1.1.10.2 jdolecek 9 - 360 K and 720 K 5.25". 95 1.1.10.2 jdolecek 15 - 1.2 M HD 5.25". 96 1.1.10.2 jdolecek 18 - 1.44 M 3.5". 97 1.1.10.2 jdolecek */ 98 1.1.10.2 jdolecek int nsects(int (drive)) 99 1.1.10.2 jdolecek { 100 1.1.10.2 jdolecek static int nsect[] = {18, 15, 9}; 101 1.1.10.2 jdolecek 102 1.1.10.2 jdolecek char *buffer; 103 1.1.10.2 jdolecek int i, status; 104 1.1.10.2 jdolecek /* 105 1.1.10.2 jdolecek Read sector 1, head 0, track 0 to get the BIOS running. 106 1.1.10.2 jdolecek */ 107 1.1.10.2 jdolecek buffer = (char *)malloc(SECTORSIZE); 108 1.1.10.2 jdolecek biosdisk(RESET, drive, 0, 0, 0, 0, buffer); 109 1.1.10.2 jdolecek status = biosdisk(READ, drive, 0, 10, 1, 1, buffer); 110 1.1.10.2 jdolecek if (status == 0x06) /* Door signal change? */ 111 1.1.10.2 jdolecek status = biosdisk(READ, drive, 0, 0, 1, 1, buffer); 112 1.1.10.2 jdolecek 113 1.1.10.2 jdolecek for (i=0; i < sizeof(nsect)/sizeof(int); ++i) { 114 1.1.10.2 jdolecek biosdisk(RESET, drive, 0, 0, 0, 0, buffer); 115 1.1.10.2 jdolecek status = biosdisk(READ, drive, 0, 0, nsect[i], 1, buffer); 116 1.1.10.2 jdolecek if (status == 0x06) 117 1.1.10.2 jdolecek status = biosdisk(READ, drive, 0, 0, nsect[i], 1, buffer); 118 1.1.10.2 jdolecek if (status == 0x00) break; 119 1.1.10.2 jdolecek } 120 1.1.10.2 jdolecek if (i == sizeof(nsect)/sizeof(int)) { 121 1.1.10.2 jdolecek msg("Can't figure out how many sectors/track for this diskette."); 122 1.1.10.2 jdolecek } 123 1.1.10.2 jdolecek free(buffer); 124 1.1.10.2 jdolecek return(nsect[i]); 125 1.1.10.2 jdolecek } 126 1.1.10.2 jdolecek 127 1.1.10.2 jdolecek void main(void) 128 1.1.10.2 jdolecek { 129 1.1.10.2 jdolecek char fname[MAXPATH]; 130 1.1.10.2 jdolecek char *buffer, *pbuf; 131 1.1.10.2 jdolecek int count, fdin, drive, head, track, status, spt, buflength, ns; 132 1.1.10.2 jdolecek 133 1.1.10.2 jdolecek puts("RaWrite 1.2 - Write disk file to raw floppy diskette\n"); 134 1.1.10.2 jdolecek ctrlbrk(handler); 135 1.1.10.2 jdolecek printf("Enter source file name: "); 136 1.1.10.2 jdolecek scanf("%s", fname); 137 1.1.10.2 jdolecek _fmode = O_BINARY; 138 1.1.10.2 jdolecek if ((fdin = open(fname, O_RDONLY)) <= 0) { 139 1.1.10.2 jdolecek perror(fname); 140 1.1.10.2 jdolecek exit(1); 141 1.1.10.2 jdolecek } 142 1.1.10.2 jdolecek 143 1.1.10.2 jdolecek printf("Enter destination drive: "); 144 1.1.10.2 jdolecek scanf("%s", fname); 145 1.1.10.2 jdolecek drive = fname[0]; 146 1.1.10.2 jdolecek drive = (islower(drive) ? toupper(drive) : drive) - 'A'; 147 1.1.10.2 jdolecek printf("Please insert a formatted diskette into "); 148 1.1.10.2 jdolecek printf("drive %c: and press -ENTER- :", drive + 'A'); 149 1.1.10.2 jdolecek while (bioskey(1) == 0) ; /* Wait... */ 150 1.1.10.2 jdolecek if ((bioskey(0) & 0x7F) == 3) exit(1); /* Check for ^C */ 151 1.1.10.2 jdolecek putchar('\n'); 152 1.1.10.2 jdolecek done = FALSE; 153 1.1.10.2 jdolecek /* 154 1.1.10.2 jdolecek * Determine number of sectors per track and allocate buffers. 155 1.1.10.2 jdolecek */ 156 1.1.10.2 jdolecek spt = nsects(drive); 157 1.1.10.2 jdolecek buflength = spt * SECTORSIZE; 158 1.1.10.2 jdolecek buffer = (char *)malloc(buflength); 159 1.1.10.2 jdolecek printf("Number of sectors per track for this disk is %d\n", spt); 160 1.1.10.2 jdolecek printf("Writing image to drive %c:. Press ^C to abort.\n", drive+'A'); 161 1.1.10.2 jdolecek /* 162 1.1.10.2 jdolecek * Start writing data to diskette until there is no more data to write. 163 1.1.10.2 jdolecek */ 164 1.1.10.2 jdolecek head = track = 0; 165 1.1.10.2 jdolecek while ((count = read(fdin, buffer, buflength)) > 0 && !done) { 166 1.1.10.2 jdolecek pbuf = buffer; 167 1.1.10.2 jdolecek for (ns = 1; count > 0 && !done; ns+=3) { 168 1.1.10.2 jdolecek printf("Track: %02d Head: %2d Sector: %2d\r", track, head, ns); 169 1.1.10.2 jdolecek status = biosdisk(WRITE, drive, head, track, ns, 3, pbuf); 170 1.1.10.2 jdolecek 171 1.1.10.2 jdolecek if (status != 0) Error(status); 172 1.1.10.2 jdolecek 173 1.1.10.2 jdolecek count -= (3*SECTORSIZE); 174 1.1.10.2 jdolecek pbuf += (3*SECTORSIZE); 175 1.1.10.2 jdolecek } 176 1.1.10.2 jdolecek if ((head = (head + 1) & 1) == 0) ++track; 177 1.1.10.2 jdolecek } 178 1.1.10.2 jdolecek if (eof(fdin)) { 179 1.1.10.2 jdolecek printf("\nDone.\n"); 180 1.1.10.2 jdolecek biosdisk(2, drive, 0, 0, 1, 1, buffer); /* Retract head */ 181 1.1.10.2 jdolecek } 182 1.1.10.2 jdolecek } /* end main */ 183
Indexes created Fri Oct 03 15:10:06 GMT 2025