projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 441ed5bc BJ |
1 | /* c-version of tp?.s |
| 2 | * | |
| 3 | * M. Ferentz | |
| 4 | * August 1976 | |
| 5 | * | |
| 6 | * revised July 1977 BTL | |
| 7 | */ | |
| 8 | ||
| 9 | #define MDIRENT 496 /* must be zero mod 8 */ | |
| 10 | #define DIRSZ sizeof(struct dent) | |
| 11 | #define MAPSIZE 4096 | |
| 12 | #define MAPMASK 07777 | |
| 13 | #define NAMELEN 32 | |
| 14 | #define BSIZE 512 | |
| 15 | #define TCSIZ 578 | |
| 16 | #define TCDIRS 192 | |
| 17 | #define MTSIZ 32767 | |
| 18 | #define TPB (BSIZE/sizeof(struct tent)) | |
| 19 | #define OK 0100000 | |
| 20 | #define BRKINCR 512 | |
| 21 | ||
| 22 | #define tapeblk &tpentry[0] | |
| 23 | #define tapeb &tpentry[0] | |
| 24 | ||
| 25 | struct tent { /* Structure of a tape directory block */ | |
| 26 | char pathnam[NAMELEN]; | |
| 27 | short mode; | |
| 28 | char uid; | |
| 29 | char gid; | |
| 30 | char spare; | |
| 31 | char size0; | |
| 32 | unsigned short size1; | |
| 33 | long time; | |
| 34 | unsigned short tapea; /* tape address */ | |
| 35 | short unused[8]; | |
| 36 | short cksum; | |
| 37 | } tpentry[TPB]; | |
| 38 | ||
| 39 | struct dent { /* in core version of tent with "unused" removed | |
| 40 | * and pathname replaced by pointer to same in a | |
| 41 | * packed area (nameblock). | |
| 42 | */ | |
| 43 | char *d_namep; | |
| 44 | int d_mode; | |
| 45 | int d_uid; | |
| 46 | int d_gid; | |
| 47 | long d_size; | |
| 48 | long d_time; | |
| 49 | int d_tapea; | |
| 50 | } dir[MDIRENT]; | |
| 51 | ||
| 52 | char map[MAPSIZE]; | |
| 53 | char name[NAMELEN]; | |
| 54 | char name1[NAMELEN]; | |
| 55 | extern char mt[]; | |
| 56 | extern char tc[]; | |
| 57 | char *tname; | |
| 58 | extern char mheader[]; | |
| 59 | extern char theader[]; | |
| 60 | ||
| 61 | int narg, rnarg; | |
| 62 | char **parg; | |
| 63 | int wseeka,rseeka; | |
| 64 | int tapsiz; | |
| 65 | int fio; | |
| 66 | short ndirent, ndentb; | |
| 67 | struct dent *edir; | |
| 68 | struct dent *lastd; /* for improvement */ | |
| 69 | char *sbrk(); | |
| 70 | char *strcpy(); | |
| 71 | long lseek(); | |
| 72 | int (*command)(); | |
| 73 | ||
| 74 | char *nameblk; | |
| 75 | char *top; | |
| 76 | char *nptr; | |
| 77 | ||
| 78 | extern int flags; | |
| 79 | #define flc 0001 | |
| 80 | #define fli 0004 | |
| 81 | #define flm 0010 | |
| 82 | #define flu 0020 | |
| 83 | #define flv 0040 | |
| 84 | #define flw 0100 | |
| 85 | #define fls 0200 |