projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| bbddffb1 TL |
1 | #include "stdio.h" |
| 2 | #include "lrnref" | |
| 3 | #define ND 64 | |
| 4 | ||
| 5 | start(lesson) | |
| 6 | char *lesson; | |
| 7 | { | |
| 8 | struct direct { | |
| 9 | int inode; | |
| 10 | char name[14]; | |
| 11 | }; | |
| 12 | struct direct dv[ND], *dm, *dp; | |
| 13 | int f, c, n; | |
| 14 | char where [100]; | |
| 15 | ||
| 16 | f = open(".", 0); | |
| 17 | n = read(f, dv, ND*sizeof(*dp)); | |
| 18 | n /= sizeof(*dp); | |
| 19 | if (n==ND) | |
| 20 | fprintf(stderr, "lesson too long\n"); | |
| 21 | dm = dv+n; | |
| 22 | for(dp=dv; dp<dm; dp++) | |
| 23 | if (dp->inode) { | |
| 24 | n = strlen(dp->name); | |
| 25 | if (dp->name[n-2] == '.' && dp->name[n-1] == 'c') | |
| 26 | continue; | |
| 27 | c = dp->name[0]; | |
| 28 | if (c>='a' && c<= 'z') | |
| 29 | unlink(dp->name); | |
| 30 | } | |
| 31 | close(f); | |
| 32 | if (ask) | |
| 33 | return; | |
| 34 | sprintf(where, "../../%s/L%s", sname, lesson); | |
| 35 | if (access(where, 04)==0) /* there is a file */ | |
| 36 | return; | |
| 37 | fprintf(stderr, "No lesson %s\n",lesson); | |
| 38 | wrapup(1); | |
| 39 | } | |
| 40 | ||
| 41 | fcopy(new,old) | |
| 42 | char *new, *old; | |
| 43 | { | |
| 44 | char b[512]; | |
| 45 | int n, fn, fo; | |
| 46 | fn = creat(new, 0666); | |
| 47 | fo = open(old,0); | |
| 48 | if (fo<0) return; | |
| 49 | if (fn<0) return; | |
| 50 | while ( (n=read(fo, b, 512)) > 0) | |
| 51 | write(fn, b, n); | |
| 52 | close(fn); | |
| 53 | close(fo); | |
| 54 | } |