1 #ifndef lint 2 static char sccsid[] = "@(#)tp1.c 4.2 06/28/84"; 3 #endif 4 5 #include "tp.h" 6 7 main(argc,argv) 8 char **argv; 9 { 10 register char c,*ptr; 11 extern cmd(), cmr(),cmx(), cmt(); 12 13 tname = tc; 14 command = cmr; 15 if ((narg = rnarg = argc) < 2) narg = 2; 16 else { 17 ptr = argv[1]; /* get first argument */ 18 parg = &argv[2]; /* pointer to second argument */ 19 while (c = *ptr++) switch(c) { 20 case '0': 21 case '1': 22 case '2': 23 case '3': 24 case '4': 25 case '5': 26 case '6': 27 case '7': 28 tc[8] = c; 29 mt[8] = c; 30 continue; 31 32 case 'f': 33 tname = *parg++; 34 flags |= flm; 35 narg--; rnarg--; 36 continue; 37 case 'c': 38 flags |= flc; continue; 39 case 'd': 40 setcom(cmd); continue; 41 case 'i': 42 flags |= fli; continue; 43 case 'm': 44 tname = mt; 45 flags |= flm; 46 continue; 47 case 'r': 48 flags &= ~flu; setcom(cmr); continue; 49 case 's': 50 flags |= fls; continue; 51 case 't': 52 setcom(cmt); continue; 53 case 'u': 54 flags |= flu; setcom(cmr); continue; 55 case 'v': 56 flags |= flv; continue; 57 case 'w': 58 flags |= flw; continue; 59 case 'x': 60 setcom(cmx); continue; 61 default: 62 useerr(); 63 } 64 } 65 optap(); 66 (*command)(); 67 } 68 69 optap() 70 { 71 extern cmr(); 72 73 if ((flags & flm) == 0) { /* DECTAPE */ 74 tapsiz = TCSIZ; 75 ndirent = TCDIRS; 76 fio =open(tc,2); 77 } else { /* MAGTAPE */ 78 tapsiz = MTSIZ; 79 ndirent = MDIRENT; 80 if(command == cmr) { 81 fio = open(tname,1); 82 if (fio < 0) fio = creat(tname,0666); 83 } else 84 fio = open(tname,0); 85 } 86 if (fio < 0) { 87 printf("Tape open error\n"); 88 done(); 89 } 90 ndentb = ndirent/TPB; 91 edir = &dir[ndirent]; 92 } 93 94 setcom(newcom) 95 int (*newcom)(); 96 { 97 extern cmr(); 98 99 if (command != cmr) useerr(); 100 command = newcom; 101 } 102 103 useerr() 104 { 105 printf("Bad usage\n"); 106 done(); 107 } 108 109 /* /* COMMANDS */ 110 111 cmd() 112 { 113 extern delete(); 114 115 if (flags & (flm|flc)) useerr(); 116 if (narg <= 2) useerr(); 117 rddir(); 118 gettape(delete); 119 wrdir(); 120 check(); 121 } 122 123 cmr() 124 { 125 if (flags & (flc|flm)) clrdir(); 126 else rddir(); 127 getfiles(); 128 update(); 129 check(); 130 } 131 132 cmt() 133 { 134 extern taboc(); 135 136 if (flags & (flc|flw)) useerr(); 137 rddir(); 138 if (flags & flv) 139 printf(" mode uid gid tapa size date time name\n"); 140 gettape(taboc); 141 check(); 142 } 143 144 cmx() 145 { 146 extern extract(); 147 148 if (flags & (flc)) useerr(); 149 rddir(); 150 gettape(extract); 151 done(); 152 } 153 154 check() 155 { 156 usage(); 157 done(); 158 } 159 160 done() 161 { 162 printf("End\n"); 163 exit(0); 164 } 165 166 encode(pname,dptr) /* pname points to the pathname 167 * dptr points to the dir entry */ 168 char *pname; 169 struct dent *dptr; 170 { 171 register char *np; 172 register n; 173 extern char *malloc(); 174 175 if((n=strlen(pname)) > NAMELEN) { 176 printf("Pathname too long - %s\nFile ignored\n",pname); 177 clrent(dptr); 178 } 179 else { 180 dptr->d_namep = np = malloc(n + 1); 181 if (np == 0) { 182 printf("Out of core\n"); 183 done(); 184 } 185 strcpy(np, pname); 186 } 187 } 188 189 decode(pname,dptr) /* dptr points to the dir entry 190 * name is placed in pname[] */ 191 char *pname; 192 struct dent *dptr; 193 { 194 195 strcpy(pname, dptr->d_namep); 196 } 197