| 1 | #include "tp.h" |
| 2 | |
| 3 | main(argc,argv) |
| 4 | char **argv; |
| 5 | { |
| 6 | register char c,*ptr; |
| 7 | extern cmd(), cmr(),cmx(), cmt(); |
| 8 | |
| 9 | tname = tc; |
| 10 | command = cmr; |
| 11 | if ((narg = rnarg = argc) < 2) narg = 2; |
| 12 | else { |
| 13 | ptr = argv[1]; /* get first argument */ |
| 14 | parg = &argv[2]; /* pointer to second argument */ |
| 15 | while (c = *ptr++) switch(c) { |
| 16 | case '0': |
| 17 | case '1': |
| 18 | case '2': |
| 19 | case '3': |
| 20 | case '4': |
| 21 | case '5': |
| 22 | case '6': |
| 23 | case '7': |
| 24 | tc[8] = c; |
| 25 | mt[7] = c; |
| 26 | continue; |
| 27 | |
| 28 | case 'f': |
| 29 | tname = *parg++; |
| 30 | narg--; rnarg--; |
| 31 | continue; |
| 32 | case 'c': |
| 33 | flags |= flc; continue; |
| 34 | case 'd': |
| 35 | setcom(cmd); continue; |
| 36 | case 'i': |
| 37 | flags |= fli; continue; |
| 38 | case 'm': |
| 39 | tname = mt; |
| 40 | flags |= flm; |
| 41 | continue; |
| 42 | case 'r': |
| 43 | flags &= ~flu; setcom(cmr); continue; |
| 44 | case 's': |
| 45 | flags |= fls; continue; |
| 46 | case 't': |
| 47 | setcom(cmt); continue; |
| 48 | case 'u': |
| 49 | flags |= flu; setcom(cmr); continue; |
| 50 | case 'v': |
| 51 | flags |= flv; continue; |
| 52 | case 'w': |
| 53 | flags |= flw; continue; |
| 54 | case 'x': |
| 55 | setcom(cmx); continue; |
| 56 | default: |
| 57 | useerr(); |
| 58 | } |
| 59 | } |
| 60 | optap(); |
| 61 | top = nptr = nameblk = sbrk(0); |
| 62 | (*command)(); |
| 63 | } |
| 64 | |
| 65 | optap() |
| 66 | { |
| 67 | extern cmr(); |
| 68 | |
| 69 | if ((flags & flm) == 0) { /* DECTAPE */ |
| 70 | tapsiz = TCSIZ; |
| 71 | ndirent = TCDIRS; |
| 72 | fio =open(tc,2); |
| 73 | } else { /* MAGTAPE */ |
| 74 | tapsiz = MTSIZ; |
| 75 | ndirent = MDIRENT; |
| 76 | if(command == cmr) |
| 77 | fio = open(tname,1); |
| 78 | else |
| 79 | fio = open(tname,0); |
| 80 | } |
| 81 | if (fio < 0) { |
| 82 | printf("Tape open error\n"); |
| 83 | done(); |
| 84 | } |
| 85 | ndentb = ndirent/TPB; |
| 86 | edir = &dir[ndirent]; |
| 87 | } |
| 88 | |
| 89 | setcom(newcom) |
| 90 | int (*newcom)(); |
| 91 | { |
| 92 | extern cmr(); |
| 93 | |
| 94 | if (command != cmr) useerr(); |
| 95 | command = newcom; |
| 96 | } |
| 97 | |
| 98 | useerr() |
| 99 | { |
| 100 | printf("Bad usage\n"); |
| 101 | done(); |
| 102 | } |
| 103 | |
| 104 | /*\f/* COMMANDS */ |
| 105 | |
| 106 | cmd() |
| 107 | { |
| 108 | extern delete(); |
| 109 | |
| 110 | if (flags & (flm|flc)) useerr(); |
| 111 | if (narg <= 2) useerr(); |
| 112 | rddir(); |
| 113 | gettape(delete); |
| 114 | wrdir(); |
| 115 | check(); |
| 116 | } |
| 117 | |
| 118 | cmr() |
| 119 | { |
| 120 | if (flags & (flc|flm)) clrdir(); |
| 121 | else rddir(); |
| 122 | getfiles(); |
| 123 | update(); |
| 124 | check(); |
| 125 | } |
| 126 | |
| 127 | cmt() |
| 128 | { |
| 129 | extern taboc(); |
| 130 | |
| 131 | if (flags & (flc|flw)) useerr(); |
| 132 | rddir(); |
| 133 | if (flags & flv) |
| 134 | printf(" mode uid gid tapa size date time name\n"); |
| 135 | gettape(taboc); |
| 136 | check(); |
| 137 | } |
| 138 | |
| 139 | cmx() |
| 140 | { |
| 141 | extern extract(); |
| 142 | |
| 143 | if (flags & (flc)) useerr(); |
| 144 | rddir(); |
| 145 | gettape(extract); |
| 146 | done(); |
| 147 | } |
| 148 | |
| 149 | check() |
| 150 | { |
| 151 | usage(); |
| 152 | done(); |
| 153 | } |
| 154 | |
| 155 | done() |
| 156 | { |
| 157 | printf("End\n"); |
| 158 | exit(0); |
| 159 | } |
| 160 | |
| 161 | encode(pname,dptr) /* pname points to the pathname |
| 162 | * nptr points to next location in nameblk |
| 163 | * dptr points to the dir entry */ |
| 164 | char *pname; |
| 165 | struct dent *dptr; |
| 166 | { |
| 167 | register char *np; |
| 168 | register n; |
| 169 | |
| 170 | dptr->d_namep = np = nptr; |
| 171 | if (np > top - NAMELEN) { |
| 172 | if(sbrk(BRKINCR) == (char *)-1) { |
| 173 | printf("Out of core\n"); |
| 174 | done(); |
| 175 | } else |
| 176 | top += BRKINCR; |
| 177 | } |
| 178 | if((n=strlen(pname)) > NAMELEN) { |
| 179 | printf("Pathname too long - %s\nFile ignored\n",pname); |
| 180 | clrent(dptr); |
| 181 | } |
| 182 | else { |
| 183 | nptr += n+1; |
| 184 | strcpy(np, pname); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | decode(pname,dptr) /* dptr points to the dir entry |
| 189 | * name is placed in pname[] */ |
| 190 | char *pname; |
| 191 | struct dent *dptr; |
| 192 | { |
| 193 | |
| 194 | strcpy(pname, dptr->d_namep); |
| 195 | } |