projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a570deab KT |
1 | #include <stdio.h> |
| 2 | #define MAXB 30 | |
| 3 | int mt; | |
| 4 | int fd; | |
| 5 | char buf[MAXB*512]; | |
| 6 | char name[50]; | |
| 7 | int blksz; | |
| 8 | ||
| 9 | main(argc, argv) | |
| 10 | int argc; | |
| 11 | char *argv[]; | |
| 12 | { | |
| 13 | int i, j, k; | |
| 14 | FILE *mf; | |
| 15 | ||
| 16 | if (argc != 3) { | |
| 17 | fprintf(stderr, "Usage: maketape tapedrive makefile\n"); | |
| 18 | exit(0); | |
| 19 | } | |
| 20 | if ((mt = creat(argv[1], 0666)) < 0) { | |
| 21 | perror(argv[1]); | |
| 22 | exit(1); | |
| 23 | } | |
| 24 | if ((mf = fopen(argv[2], "r")) == NULL) { | |
| 25 | perror(argv[2]); | |
| 26 | exit(2); | |
| 27 | } | |
| 28 | ||
| 29 | j = 0; | |
| 30 | k = 0; | |
| 31 | for (;;) { | |
| 32 | if ((i = fscanf(mf, "%s %d", name, &blksz))== EOF) | |
| 33 | exit(0); | |
| 34 | if (i != 2) { | |
| 35 | fprintf(stderr, "Help! Scanf didn't read 2 things (%d)\n", i); | |
| 36 | exit(1); | |
| 37 | } | |
| 38 | if (blksz <= 0 || blksz > MAXB) { | |
| 39 | fprintf(stderr, "Block size %d is invalid\n", blksz); | |
| 40 | continue; | |
| 41 | } | |
| 42 | if (strcmp(name, "*") == 0) { | |
| 43 | close(mt); | |
| 44 | mt = open(argv[1], 2); | |
| 45 | j = 0; | |
| 46 | k++; | |
| 47 | continue; | |
| 48 | } | |
| 49 | fd = open(name, 0); | |
| 50 | if (fd < 0) { | |
| 51 | perror(name); | |
| 52 | continue; | |
| 53 | } | |
| 54 | printf("%s: block %d, file %d\n", name, j, k); | |
| 55 | while (read(fd, buf, 512*blksz) > 0) { | |
| 56 | j++; | |
| 57 | write(mt, buf, 512*blksz); | |
| 58 | } | |
| 59 | } | |
| 60 | } |