1: # include   <ingres.h>
   2: # include   <tree.h>
   3: # include   <aux.h>
   4: # include   <catalog.h>
   5: # include   <symbol.h>
   6: # include   <sccs.h>
   7: 
   8: SCCSID(@(#)pr_prot.c	8.3	2/8/85)
   9: 
  10: /*
  11: **  PR_PROT.C -- Print out a protection query
  12: **
  13: **	Trace Flags:
  14: **		51
  15: */
  16: 
  17: 
  18: 
  19: 
  20: 
  21: 
  22: extern QTREE    *gettree(); /* gets a tree from "tree" catalog [readtree.c] */
  23: 
  24: char    *Days [] =
  25: {
  26:     "sunday",
  27:     "monday",
  28:     "tuesday",
  29:     "wednesday",
  30:     "thursday",
  31:     "friday",
  32:     "saturday",
  33: };
  34: 
  35: struct rngtab
  36: {
  37:     char    relid [MAXNAME];
  38:     char    rowner [2];
  39:     char    rused;
  40: };
  41: 
  42: 
  43: 
  44: 
  45: /*
  46: **  PR_PROT -- print out protection info on a relation
  47: **
  48: **	Prints out a "define permit" statement for
  49: **	each permission on a relation.
  50: **	First calls pr_spec_permit() to print permissions
  51: **	indicated in the relation.relstat bits. Lower level pr_??
  52: **	routines look for these bits, so in the calls to pr_permit
  53: **	for tuples actually gotten from the "protect" catalog,
  54: **	pr_prot sets the relstat bits, thereby suppressing their special
  55: **	meaning (they are inverse bits: 0 means on).
  56: **
  57: **	Parameters:
  58: **		relid -- non-unique relation name used by user in DBU call
  59: **		r -- ptr to relation tuple
  60: **
  61: **	Returns:
  62: **		0 -- some permissions on rel
  63: **		1 -- no permissions on rel
  64: **
  65: **	Side Effects:
  66: **		reads trees from protection catalog
  67: **
  68: **	Trace Flags:
  69: **		39, 0
  70: */
  71: 
  72: pr_prot(relid, r)
  73: char                *relid;
  74: register struct relation    *r;
  75: {
  76:     extern DESC Prodes;
  77:     TID     hitid, lotid;
  78:     struct protect  key, tuple;
  79:     register int    i;
  80:     int     flag;   /* indicates whether a special case occurred */
  81: 
  82: #	ifdef xZTR1
  83:     if (tTf(51, 0))
  84:         printf("pr_prot: relation \"%s\" owner \"%s\"relstat 0%o\n",
  85:         r->relid, r->relowner, r->relstat);
  86: #	endif
  87: 
  88:     flag = 0;
  89:     if (r->relstat & S_PROTUPS || !(r->relstat & S_PROTALL)
  90:        || !(r->relstat & S_PROTRET))
  91:         printf("Permissions on %s are:\n\n", relid);
  92:     /* print out special permissions, if any */
  93:     flag += pr_spec_permit(r, S_PROTALL);
  94:     flag += pr_spec_permit(r, S_PROTRET);
  95: 
  96:     if (!(r->relstat & S_PROTUPS))
  97:         if (flag)
  98:             return (0);
  99:         else
 100:             return (1);
 101:     opencatalog("protect", OR_READ);
 102: 
 103:     /* get protect catalog tuples for "r", "owner" */
 104:     clearkeys(&Prodes);
 105:     setkey(&Prodes, &key, r->relid, PRORELID);
 106:     setkey(&Prodes, &key, r->relowner, PRORELOWN);
 107:     if (i = find(&Prodes, EXACTKEY, &lotid, &hitid, &key))
 108:         syserr("pr_prot: find %d", i);
 109:     /* ready for pr_user call to getuser() */
 110:     getuser(-1);
 111:     for ( ; ; )
 112:     {
 113:         if (i = get(&Prodes, &lotid, &hitid, &tuple, TRUE))
 114:             break;
 115:         /* print out protection info */
 116:         if (kcompare(&Prodes, &tuple, &key) == 0)
 117:             /* permission from real protect tuple, concoct
 118: 			 * neutral relstat
 119: 			 */
 120:             pr_permit(&tuple, r->relstat | S_PROTALL | S_PROTRET);
 121:     }
 122:     if (i != 1)
 123:         syserr("pr_prot: get %d", i);
 124: 
 125:     /* close user file opened by pr_user call to getuser */
 126:     getuser(0);
 127: }
 128: /*
 129: **  PR_SPEC_PERMIT -- Print out special permissions
 130: **	Prints out permissios indicated by the relation.relstat field bits.
 131: **	Concocts a protection tuple for the permission and assigns a
 132: **	propermid-like number to it for printing. Passes to pr_permit()
 133: **	the concocted tuple, together with a relstat where the appropriate
 134: **	bit is 0, so that the special printing at the lower level pr_???
 135: **	routines takes place.
 136: **
 137: **	Parameters:
 138: **		r -- relation relation tuple for the permitted relation
 139: **		relst_bit -- if this bit is 0 inthe relstat, prints the query
 140: **				{S_PROTALL, S_PROTRET}
 141: **
 142: **	Returns:
 143: **		1 -- if prints
 144: **		0 -- otherwise
 145: */
 146: 
 147: 
 148: pr_spec_permit(r, relst_bit)
 149: register struct relation    *r;
 150: int             relst_bit;
 151: {
 152:     register struct protect *p;
 153:     struct protect      prot;
 154: 
 155:     if (r->relstat & relst_bit)
 156:         return (0);
 157:     p = &prot;
 158:     clrmem(p, sizeof *p);
 159:     p->protree = -1;
 160:     if (relst_bit == S_PROTALL)
 161:         p->propermid = 0;
 162:     else if (relst_bit == S_PROTRET)
 163:         p->propermid = 1;
 164:     else
 165:         syserr("pr_spec_permit(relst_bit == 0%o)", relst_bit);
 166: 
 167:     bmove(r->relid, p->prorelid, MAXNAME);
 168:     bmove("  ", p->prouser, 2);
 169:     pmove("", p->proterm, sizeof p->proterm, ' ');
 170:     pr_permit(p, (r->relstat | S_PROTRET | S_PROTALL) & ~relst_bit);
 171:     return (1);
 172: }
 173: /*
 174: **  PR_PERMIT -- print out a DEFINE PERMIT query for a protection tuple
 175: **
 176: **	Parameters:
 177: **		p -- ptr to protection tuple
 178: **		relstat -- relstat from relation
 179: **
 180: **	Returns:
 181: **		none
 182: **
 183: **	Side Effects:
 184: **		reads in a tree from the "tree" catalog
 185: **		prints out a query
 186: */
 187: 
 188: 
 189: pr_permit(p, relstat)
 190: register struct protect *p;
 191: int         relstat;
 192: {
 193:     register QTREE  *t;
 194:     extern DESC Prodes;
 195:     DESC        pdesc;
 196: 
 197:     /*
 198: 	 * if there is a qualification then
 199: 	 * clear range table, then read in protect tree,
 200: 	 * the print out range statements
 201: 	 * else create single entry range table.
 202: 	 */
 203:     clrrange();
 204:     if (p->protree >= 0)
 205:     {
 206:         t = gettree(p->prorelid, p->prorelown, mdPROT, p->protree, TRUE);
 207:     }
 208:     else
 209:     {
 210:         t = 0;
 211:         bmove(p->prorelid, pdesc.reldum.relid, MAXNAME);
 212:         bmove(p->prorelown, pdesc.reldum.relowner, 2);
 213:         declare(0, &pdesc);
 214:         p->proresvar = 0;
 215:     }
 216:     printf("Permission %d -\n\n", p->propermid);
 217:     pr_range();
 218: 
 219: #	ifdef xZTR1
 220:     if (tTf(51, 1))
 221:     {
 222:         printf("pr_permit: prot=");
 223:         printup(&Prodes, p);
 224:         printf(", Qt.qt_resvar=%d\n", Qt.qt_resvar);
 225:     }
 226: #	endif
 227: 
 228:     /* print out query */
 229:     printf("define permit ");
 230:     pr_ops(p->proopset, relstat);
 231:     printf("on ");
 232:     pr_rv(Qt.qt_resvar = p->proresvar);
 233:     putchar(' ');
 234:     pr_doms(p->prodomset, relstat);
 235:     printf("\n\t");
 236:     pr_user(p->prouser);
 237:     pr_term(p->proterm);
 238:     if ((relstat & S_PROTRET) && (relstat & S_PROTALL))
 239:     {
 240:         /* not special case */
 241:         pr_time(p->protodbgn, p->protodend);
 242:         pr_day(p->prodowbgn, p->prodowend);
 243:     }
 244:     if (t && t->right->sym.type != QLEND)
 245:     {
 246:         printf("\nwhere ");
 247:         pr_qual(t->right);
 248:     }
 249:     printf("\n\n\n");
 250: 
 251:     /* clear up the old range table */
 252:     clrrange();
 253: }
 254: /*
 255: **  PR_OPS -- Prints the the operation list defined by a protection opset
 256: **
 257: **	Eliminates the appropriate bits from a copy of the opset while printing
 258: **	out the appropriate operation list.
 259: **
 260: **	Parameters:
 261: **		opset -- protection.opset for the relation
 262: **		relstat
 263: **
 264: **	Returns:
 265: **		none
 266: **
 267: **	Side Effects:
 268: **		printing of permitted op list
 269: */
 270: 
 271: pr_ops(opset, relstat)
 272: int opset;
 273: int relstat;
 274: {
 275:     register int    op, j;
 276: 
 277: #	ifdef xZTR1
 278:     if (tTf(51, 2))
 279:         printf("pr_ops(0%o)\n", opset);
 280: #	endif
 281: 
 282:     if (!(relstat & S_PROTALL) || opset == -1)
 283:     {
 284:         printf("all ");
 285:         return;
 286:     }
 287:     if (!(relstat & S_PROTRET))
 288:     {
 289:         printf("retrieve ");
 290:         return;
 291:     }
 292: 
 293:     op = (opset & ~PRO_AGGR & ~PRO_TEST) & 077;
 294:     for ( ; ; )
 295:     {
 296:         if (op & (j = PRO_RETR))
 297:             printf("retrieve");
 298:         else if (op & (j = PRO_REPL))
 299:             printf("replace");
 300:         else if (op & (j = PRO_DEL))
 301:             printf("delete");
 302:         else if (op & (j = PRO_APP))
 303:             printf("append");
 304:         op ^= j;
 305:         if (op)
 306:             printf(", ");
 307:         else
 308:             break;
 309:     }
 310:     putchar(' ');
 311: }
 312: /*
 313: **  PR_DOMS -- Print domains in permit target list
 314: **
 315: **	Parameters:
 316: **		doms -- an 8 byte integer array; a bit map of the domains
 317: **			if all 8 integers are -1, then "all" is printed fo
 318: **			for the target list
 319: **		relstat
 320: **
 321: **	Returns:
 322: **		none
 323: **
 324: **	Side Effects:
 325: **		prints out target list
 326: */
 327: 
 328: pr_doms(doms, relstat)
 329: short   doms[BITMAP_SZ];
 330: int relstat;
 331: {
 332:     register short  *d;
 333:     register int    flag, shift;
 334:     int     word;
 335:     char        *rel;
 336: 
 337:     word = shift = 0;
 338:     d = doms;
 339:     rel = Qt.qt_rangev[Qt.qt_resvar].rngvdesc->reldum.relid;
 340: 
 341: #	ifdef xZTR1
 342:     if (tTf(51, 3))
 343:     {
 344:         printf("pr_doms: rel=\"%s\" ", rel);
 345:         for (word = 0; word < BITMAP_SZ; )
 346:             printf("0%o ", d [word++]);
 347:         word = 0;
 348:         putchar('\n');
 349:     }
 350: #	endif
 351:     if (!(relstat & S_PROTALL) || !(relstat & S_PROTRET))
 352:         return;
 353:     flag = 1;
 354:     for (word = 0; word < BITMAP_SZ; word++)
 355:         if (*d++ != -1)
 356:         {
 357:             flag = 0;
 358:             break;
 359:         }
 360: 
 361:     if (!flag)
 362:     {
 363:         putchar('(');
 364:         for (d = doms, word = 0; word < BITMAP_SZ; word++, d++)
 365:         {
 366:             for (shift = 0; shift < NUMSHIFTS; shift++, *d >>= 1)
 367:             {
 368:                 if (*d & 01)
 369:                 {
 370:                     if (flag++)
 371:                         printf(", ");
 372:                     pr_attname(rel, word * NUMSHIFTS + shift);
 373:                 }
 374:             }
 375:         }
 376:         putchar(')');
 377:     }
 378: }
 379: /*
 380: **  PR_USER -- prints out permitted user's name
 381: **
 382: **	Parameters:
 383: **		user -- 2 char array, user's usercode as in
 384: **			users file
 385: **
 386: **	Returns:
 387: **		none
 388: **
 389: **	Side Effects:
 390: **		prints users name or "all" if user was "  "
 391: */
 392: 
 393: pr_user(user)
 394: char    user[2];
 395: {
 396:     register    i;
 397:     char        buf[MAXLINE];
 398:     register char   *c, *u;
 399: 
 400: #	ifdef xZTR1
 401:     if (tTf(51, 4))
 402:         printf("pr_user(\"%c%c\")\n", user[0], user[1]);
 403: #	endif
 404: 
 405:     c = buf;
 406:     u = user;
 407:     printf("to ");
 408:     if (bequal(u, "  ", 2))
 409:         printf("all ");
 410:     else
 411:     {
 412:         if (getuser(u, c))
 413:         {
 414:             printf("%c%c ", u[0], u[1]);
 415:             return;
 416:         }
 417:         while (*c != ':' && *c != '\n')
 418:             putchar(*c++);
 419:         putchar(' ');
 420:     }
 421: }
 422: /*
 423: **  PR_TIME -- Prints out clock time range access is allowed
 424: **
 425: **	Parameters:
 426: **		bgn, end -- begin end times in seconds (if all day, returns)
 427: **
 428: **	Returns:
 429: **		none
 430: **
 431: **	Side Effects:
 432: **		prints out time
 433: */
 434: 
 435: pr_time(bgn, end)
 436: int bgn, end;
 437: {
 438:     char        time [3];
 439:     register char   *t;
 440:     register int    b, e;
 441: 
 442:     t = time;
 443:     b = bgn;
 444:     e = end;
 445: #	ifdef xZTR1
 446:     if (tTf(51, 5))
 447:         printf("pr_time(bgn=%d, end=%d)\n", b, e);
 448: #	endif
 449:     if (b == 0 && e == 24 * 60)
 450:         return;
 451:     printf("from %d:", b / 60);
 452:     itoa(b % 60, t);
 453:     if (!t [1])
 454:         putchar('0');
 455:     printf("%s to %d:", t, e / 60);
 456:     itoa(e % 60, t);
 457:     if (!t [1])
 458:         putchar('0');
 459:     printf("%s ", t);
 460: }
 461: /*
 462: **  PR_DAY -- Prints day range permitted
 463: **
 464: **	Parameters:
 465: **		bgn, end -- bgn end days [0..6] (if all week returns)
 466: **
 467: **	Returns:
 468: **		none
 469: **
 470: **	Side Effects:
 471: **		prints days or nothing
 472: */
 473: 
 474: pr_day(bgn, end)
 475: int bgn, end;
 476: {
 477: #	ifdef xZTR1
 478:     if (tTf(51, 6))
 479:         printf("pr_day(bgn=%d, end=%d)\n", bgn, end);
 480: #	endif
 481:     if (bgn == 0 && end >= 6)
 482:         return;
 483:     printf("on %s to %s ", Days [bgn], Days [end]);
 484: }
 485: /*
 486: **  PR_TERM -- Print terminal from which access permitted
 487: **
 488: **	Parameters:
 489: **		term -- 1 char terminal id as in /etc/tty* (if ' ' the returns)
 490: **
 491: **	Returns:
 492: **		none
 493: **
 494: **	Side Effects:
 495: **		prints terminal or nothing
 496: */
 497: 
 498: pr_term(term)
 499: char    term[8];
 500: {
 501: #	ifdef xZTR1
 502:     if (tTf(51, 7))
 503:         printf("pr_term(term='%.8s')\n", term);
 504: #	endif
 505: 
 506:     if (term[0] != ' ')
 507:         printf("at %8.8s ", term);
 508: }

Defined functions

pr_day defined in line 474; used 1 times
pr_doms defined in line 328; used 1 times
pr_ops defined in line 271; used 1 times
pr_permit defined in line 189; used 2 times
pr_prot defined in line 72; used 1 times
pr_spec_permit defined in line 148; used 2 times
pr_term defined in line 498; used 1 times
pr_time defined in line 435; used 1 times
pr_user defined in line 393; used 1 times

Defined variables

Days defined in line 24; used 2 times
  • in line 483(2)

Defined struct's

rngtab defined in line 35; never used
Last modified: 1986-04-17
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