1 /*- 2 * SPDX-License-Identifier: Beerware 3 * 4 * ---------------------------------------------------------------------------- 5 * "THE BEER-WARE LICENSE" (Revision 42): 6 * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you 7 * can do whatever you want with this stuff. If we meet some day, and you think 8 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 9 * ---------------------------------------------------------------------------- 10 * 11 */ 12 13 #include <err.h> 14 #include <fcntl.h> 15 #include <paths.h> 16 #include <stdio.h> 17 #include <stdlib.h> 18 #include <string.h> 19 #include <unistd.h> 20 21 #include <sys/fdcio.h> 22 23 static int 24 format_track(int fd, int cyl, int secs, int head, int rate, 25 int gaplen, int secsize, int fill, int interleave) 26 { 27 struct fd_formb f; 28 int i, j; 29 int il[100]; 30 31 memset(il,0,sizeof il); 32 for(j = 0, i = 1; i <= secs; i++) { 33 while(il[(j%secs)+1]) j++; 34 il[(j%secs)+1] = i; 35 j += interleave; 36 } 37 38 f.format_version = FD_FORMAT_VERSION; 39 f.head = head; 40 f.cyl = cyl; 41 f.transfer_rate = rate; 42 43 f.fd_formb_secshift = secsize; 44 f.fd_formb_nsecs = secs; 45 f.fd_formb_gaplen = gaplen; 46 f.fd_formb_fillbyte = fill; 47 for(i = 0; i < secs; i++) { 48 f.fd_formb_cylno(i) = cyl; 49 f.fd_formb_headno(i) = head; 50 f.fd_formb_secno(i) = il[i+1]; 51 f.fd_formb_secsize(i) = secsize; 52 } 53 return ioctl(fd, FD_FORM, (caddr_t)&f); 54 } 55 56 static void 57 usage(void) 58 { 59 fprintf(stderr, "usage: fdwrite [-v] [-y] [-f inputfile] [-d device]\n"); 60 exit(2); 61 } 62 63 int 64 main(int argc, char **argv) 65 { 66 int inputfd = -1, c, fdn = 0, i,j,fd; 67 int bpt, verbose=1, nbytes=0, track; 68 int interactive = 1; 69 const char *device= "/dev/fd0"; 70 char *trackbuf = NULL, *vrfybuf = NULL; 71 struct fd_type fdt; 72 FILE *tty; 73 74 setbuf(stdout,0); 75 while((c = getopt(argc, argv, "d:f:vy")) != -1) 76 switch(c) { 77 case 'd': /* Which drive */ 78 device = optarg; 79 break; 80 81 case 'f': /* input file */ 82 if (inputfd >= 0) 83 close(inputfd); 84 inputfd = open(optarg,O_RDONLY); 85 if (inputfd < 0) 86 err(1, "%s", optarg); 87 break; 88 89 case 'v': /* Toggle verbosity */ 90 verbose = !verbose; 91 break; 92 93 case 'y': /* Don't confirm? */ 94 interactive = 0; 95 break; 96 97 case '?': default: 98 usage(); 99 } 100 101 if (inputfd < 0) 102 inputfd = 0; 103 104 if (!isatty(1)) 105 interactive = 0; 106 107 if(optind < argc) 108 usage(); 109 110 tty = fopen(_PATH_TTY,"r+"); 111 if(!tty) 112 err(1, _PATH_TTY); 113 setbuf(tty,0); 114 115 for(j=1;j > 0;) { 116 fdn++; 117 if (interactive) { 118 fprintf(tty, 119 "Please insert floppy #%d in drive %s and press return >", 120 fdn,device); 121 while(1) { 122 i = getc(tty); 123 if(i == '\n') break; 124 } 125 } 126 127 if((fd = open(device, O_RDWR)) < 0) 128 err(1, "%s", device); 129 130 if(ioctl(fd, FD_GTYPE, &fdt) < 0) 131 errx(1, "not a floppy disk: %s", device); 132 133 bpt = fdt.sectrac * (1<<fdt.secsize) * 128; 134 if(!trackbuf) { 135 trackbuf = malloc(bpt); 136 if(!trackbuf) errx(1, "malloc"); 137 } 138 if(!vrfybuf) { 139 vrfybuf = malloc(bpt); 140 if(!vrfybuf) errx(1, "malloc"); 141 } 142 143 if(fdn == 1) { 144 if(verbose) { 145 printf("Format: %d cylinders, %d heads, %d sectors, %d bytes = %dkb\n", 146 fdt.tracks,fdt.heads,fdt.sectrac,(1<<fdt.secsize) * 128, 147 fdt.tracks*bpt*fdt.heads/1024); 148 149 } 150 memset(trackbuf,0,bpt); 151 for(j=0;inputfd >= 0 && j<bpt;j+=i) { 152 if(!(i = read(inputfd,trackbuf+j,bpt-j))) { 153 close(inputfd); 154 inputfd = -1; 155 break; 156 } 157 nbytes += i; 158 } 159 } 160 for (track = 0; track < fdt.tracks * fdt.heads; track++) { 161 if(verbose) printf("\r%3d ",fdt.tracks * fdt.heads-track); 162 if(verbose) putc((j ? 'I':'Z'),stdout); 163 format_track(fd, track / fdt.heads, fdt.sectrac, track % fdt.heads, 164 fdt.trans, fdt.f_gap, fdt.secsize, 0xe6, 165 fdt.f_inter); 166 if(verbose) putc('F',stdout); 167 168 if (lseek (fd, (long) track*bpt, 0) < 0) err(1, "lseek"); 169 if (write (fd, trackbuf, bpt) != bpt) err(1, "write"); 170 if(verbose) putc('W',stdout); 171 172 if (lseek (fd, (long) track*bpt, 0) < 0) err(1, "lseek"); 173 if (read (fd, vrfybuf, bpt) != bpt) err(1, "read"); 174 if(verbose) putc('R',stdout); 175 176 if (memcmp(trackbuf,vrfybuf,bpt)) err(1, "compare"); 177 if(verbose) putc('C',stdout); 178 179 memset(trackbuf,0,bpt); 180 for(j=0;inputfd >= 0 && j<bpt;j+=i) { 181 if(!(i = read(inputfd,trackbuf+j,bpt-j))) { 182 close(inputfd); 183 inputfd = -1; 184 break; 185 } 186 nbytes += i; 187 } 188 } 189 close(fd); 190 putc('\r',stdout); 191 } 192 if(verbose) 193 printf("%d bytes on %d flopp%s\n",nbytes,fdn,fdn==1?"y":"ies"); 194 195 free(trackbuf); 196 free(vrfybuf); 197 exit(0); 198 } 199