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1.1 ! root 1: static char *sccsid = "@(#)dumpmain.c 1.15 (Berkeley) 8/19/83"; ! 2: #include "dump.h" ! 3: ! 4: int notify = 0; /* notify operator flag */ ! 5: int blockswritten = 0; /* number of blocks written on current tape */ ! 6: int tapeno = 0; /* current tape number */ ! 7: int density = 0; /* density in bytes/0.1" */ ! 8: int ntrec = NTREC; /* # tape blocks in each tape record */ ! 9: int cartridge = 0; /* Assume non-cartridge tape */ ! 10: #ifdef RDUMP ! 11: char *host; ! 12: #endif ! 13: ! 14: main(argc, argv) ! 15: int argc; ! 16: char *argv[]; ! 17: { ! 18: char *arg; ! 19: int i; ! 20: float fetapes; ! 21: register struct fstab *dt; ! 22: ! 23: time(&(spcl.c_date)); ! 24: ! 25: tsize = 0; /* Default later, based on 'c' option for cart tapes */ ! 26: tape = TAPE; ! 27: disk = DISK; ! 28: increm = NINCREM; ! 29: temp = TEMP; ! 30: if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0) { ! 31: msg("TP_BSIZE must be a multiple of DEV_BSIZE\n"); ! 32: dumpabort(); ! 33: } ! 34: incno = '9'; ! 35: uflag = 0; ! 36: arg = "u"; ! 37: if(argc > 1) { ! 38: argv++; ! 39: argc--; ! 40: arg = *argv; ! 41: if (*arg == '-') ! 42: argc++; ! 43: } ! 44: while(*arg) ! 45: switch (*arg++) { ! 46: case 'w': ! 47: lastdump('w'); /* tell us only what has to be done */ ! 48: exit(0); ! 49: break; ! 50: case 'W': /* what to do */ ! 51: lastdump('W'); /* tell us the current state of what has been done */ ! 52: exit(0); /* do nothing else */ ! 53: break; ! 54: ! 55: case 'f': /* output file */ ! 56: if(argc > 1) { ! 57: argv++; ! 58: argc--; ! 59: tape = *argv; ! 60: } ! 61: break; ! 62: ! 63: case 'd': /* density, in bits per inch */ ! 64: if (argc > 1) { ! 65: argv++; ! 66: argc--; ! 67: density = atoi(*argv) / 10; ! 68: } ! 69: break; ! 70: ! 71: case 's': /* tape size, feet */ ! 72: if(argc > 1) { ! 73: argv++; ! 74: argc--; ! 75: tsize = atol(*argv); ! 76: tsize *= 12L*10L; ! 77: } ! 78: break; ! 79: ! 80: case 'b': /* blocks per tape write */ ! 81: if(argc > 1) { ! 82: argv++; ! 83: argc--; ! 84: ntrec = atol(*argv); ! 85: } ! 86: break; ! 87: ! 88: case 'c': /* Tape is cart. not 9-track */ ! 89: cartridge++; ! 90: break; ! 91: ! 92: case '0': /* dump level */ ! 93: case '1': ! 94: case '2': ! 95: case '3': ! 96: case '4': ! 97: case '5': ! 98: case '6': ! 99: case '7': ! 100: case '8': ! 101: case '9': ! 102: incno = arg[-1]; ! 103: break; ! 104: ! 105: case 'u': /* update /etc/dumpdates */ ! 106: uflag++; ! 107: break; ! 108: ! 109: case 'n': /* notify operators */ ! 110: notify++; ! 111: break; ! 112: ! 113: default: ! 114: fprintf(stderr, "bad key '%c%'\n", arg[-1]); ! 115: Exit(X_ABORT); ! 116: } ! 117: if(argc > 1) { ! 118: argv++; ! 119: argc--; ! 120: disk = *argv; ! 121: } ! 122: if (strcmp(tape, "-") == 0) { ! 123: pipeout++; ! 124: tape = "standard output"; ! 125: } ! 126: ! 127: /* ! 128: * Determine how to default tape size and density ! 129: * ! 130: * density tape size ! 131: * 9-track 1600 bpi (160 bytes/.1") 2300 ft. ! 132: * 9-track 6250 bpi (625 bytes/.1") 2300 ft. ! 133: * cartridge 8000 bpi (100 bytes/.1") 4000 ft. (450*9 - slop) ! 134: */ ! 135: if (density == 0) ! 136: density = cartridge ? 100 : 160; ! 137: if (tsize == 0) ! 138: tsize = cartridge ? 4000L*120L : 2300L*120L; ! 139: ! 140: #ifdef RDUMP ! 141: { char *index(); ! 142: host = tape; ! 143: tape = index(host, ':'); ! 144: if (tape == 0) { ! 145: msg("need keyletter ``f'' and device ``host:tape''"); ! 146: exit(1); ! 147: } ! 148: *tape++ = 0; ! 149: if (rmthost(host) == 0) ! 150: exit(X_ABORT); ! 151: } ! 152: #endif ! 153: if (signal(SIGHUP, sighup) == SIG_IGN) ! 154: signal(SIGHUP, SIG_IGN); ! 155: if (signal(SIGTRAP, sigtrap) == SIG_IGN) ! 156: signal(SIGTRAP, SIG_IGN); ! 157: if (signal(SIGFPE, sigfpe) == SIG_IGN) ! 158: signal(SIGFPE, SIG_IGN); ! 159: if (signal(SIGBUS, sigbus) == SIG_IGN) ! 160: signal(SIGBUS, SIG_IGN); ! 161: if (signal(SIGSEGV, sigsegv) == SIG_IGN) ! 162: signal(SIGSEGV, SIG_IGN); ! 163: if (signal(SIGTERM, sigterm) == SIG_IGN) ! 164: signal(SIGTERM, SIG_IGN); ! 165: ! 166: ! 167: if (signal(SIGINT, interrupt) == SIG_IGN) ! 168: signal(SIGINT, SIG_IGN); ! 169: ! 170: set_operators(); /* /etc/group snarfed */ ! 171: getfstab(); /* /etc/fstab snarfed */ ! 172: /* ! 173: * disk can be either the full special file name, ! 174: * the suffix of the special file name, ! 175: * the special name missing the leading '/', ! 176: * the file system name with or without the leading '/'. ! 177: */ ! 178: dt = fstabsearch(disk); ! 179: if (dt != 0) ! 180: disk = rawname(dt->fs_spec); ! 181: getitime(); /* /etc/dumpdates snarfed */ ! 182: ! 183: msg("Date of this level %c dump: %s\n", incno, prdate(spcl.c_date)); ! 184: msg("Date of last level %c dump: %s\n", ! 185: lastincno, prdate(spcl.c_ddate)); ! 186: msg("Dumping %s ", disk); ! 187: if (dt != 0) ! 188: msgtail("(%s) ", dt->fs_file); ! 189: #ifdef RDUMP ! 190: msgtail("to %s on host %s\n", tape, host); ! 191: #else ! 192: msgtail("to %s\n", tape); ! 193: #endif ! 194: ! 195: fi = open(disk, 0); ! 196: if (fi < 0) { ! 197: msg("Cannot open %s\n", disk); ! 198: Exit(X_ABORT); ! 199: } ! 200: esize = 0; ! 201: sblock = (struct fs *)buf; ! 202: sync(); ! 203: bread(SBLOCK, sblock, SBSIZE); ! 204: if (sblock->fs_magic != FS_MAGIC) { ! 205: msg("bad sblock magic number\n"); ! 206: dumpabort(); ! 207: } ! 208: msiz = roundup(howmany(sblock->fs_ipg * sblock->fs_ncg, NBBY), ! 209: TP_BSIZE); ! 210: clrmap = (char *)calloc(msiz, sizeof(char)); ! 211: dirmap = (char *)calloc(msiz, sizeof(char)); ! 212: nodmap = (char *)calloc(msiz, sizeof(char)); ! 213: ! 214: msg("mapping (Pass I) [regular files]\n"); ! 215: pass(mark, (char *)NULL); /* mark updates esize */ ! 216: ! 217: do { ! 218: msg("mapping (Pass II) [directories]\n"); ! 219: nadded = 0; ! 220: pass(add, dirmap); ! 221: } while(nadded); ! 222: ! 223: bmapest(clrmap); ! 224: bmapest(nodmap); ! 225: ! 226: if (cartridge) { ! 227: /* Estimate number of tapes, assuming streaming stops at ! 228: the end of each block written, and not in mid-block. ! 229: Assume no erroneous blocks; this can be compensated for ! 230: with an artificially low tape size. */ ! 231: fetapes = ! 232: ( esize /* blocks */ ! 233: * TP_BSIZE /* bytes/block */ ! 234: * (1.0/density) /* 0.1" / byte */ ! 235: + ! 236: esize /* blocks */ ! 237: * (1.0/ntrec) /* streaming-stops per block */ ! 238: * 15.48 /* 0.1" / streaming-stop */ ! 239: ) * (1.0 / tsize ); /* tape / 0.1" */ ! 240: } else { ! 241: /* Estimate number of tapes, for old fashioned 9-track tape */ ! 242: int tenthsperirg = (density == 625) ? 3 : 7; ! 243: fetapes = ! 244: ( esize /* blocks */ ! 245: * TP_BSIZE /* bytes / block */ ! 246: * (1.0/density) /* 0.1" / byte */ ! 247: + ! 248: esize /* blocks */ ! 249: * (1.0/ntrec) /* IRG's / block */ ! 250: * tenthsperirg /* 0.1" / IRG */ ! 251: ) * (1.0 / tsize ); /* tape / 0.1" */ ! 252: } ! 253: etapes = fetapes; /* truncating assignment */ ! 254: etapes++; ! 255: /* count the nodemap on each additional tape */ ! 256: for (i = 1; i < etapes; i++) ! 257: bmapest(nodmap); ! 258: esize += i + 10; /* headers + 10 trailer blocks */ ! 259: msg("estimated %ld tape blocks on %3.2f tape(s).\n", esize, fetapes); ! 260: ! 261: alloctape(); /* Allocate tape buffer */ ! 262: ! 263: otape(); /* bitmap is the first to tape write */ ! 264: time(&(tstart_writing)); ! 265: bitmap(clrmap, TS_CLRI); ! 266: ! 267: msg("dumping (Pass III) [directories]\n"); ! 268: pass(dump, dirmap); ! 269: ! 270: msg("dumping (Pass IV) [regular files]\n"); ! 271: pass(dump, nodmap); ! 272: ! 273: spcl.c_type = TS_END; ! 274: #ifndef RDUMP ! 275: for(i=0; i<ntrec; i++) ! 276: spclrec(); ! 277: #endif ! 278: msg("DUMP: %ld tape blocks on %d tape(s)\n",spcl.c_tapea,spcl.c_volume); ! 279: msg("DUMP IS DONE\n"); ! 280: ! 281: putitime(); ! 282: #ifndef RDUMP ! 283: if (!pipeout) { ! 284: close(to); ! 285: rewind(); ! 286: } ! 287: #else ! 288: tflush(1); ! 289: rewind(); ! 290: #endif ! 291: broadcast("DUMP IS DONE!\7\7\n"); ! 292: Exit(X_FINOK); ! 293: } ! 294: ! 295: int sighup(){ msg("SIGHUP() try rewriting\n"); sigAbort();} ! 296: int sigtrap(){ msg("SIGTRAP() try rewriting\n"); sigAbort();} ! 297: int sigfpe(){ msg("SIGFPE() try rewriting\n"); sigAbort();} ! 298: int sigbus(){ msg("SIGBUS() try rewriting\n"); sigAbort();} ! 299: int sigsegv(){ msg("SIGSEGV() ABORTING!\n"); abort();} ! 300: int sigalrm(){ msg("SIGALRM() try rewriting\n"); sigAbort();} ! 301: int sigterm(){ msg("SIGTERM() try rewriting\n"); sigAbort();} ! 302: ! 303: sigAbort() ! 304: { ! 305: if (pipeout) { ! 306: msg("Unknown signal, cannot recover\n"); ! 307: dumpabort(); ! 308: } ! 309: msg("Rewriting attempted as response to unknown signal.\n"); ! 310: fflush(stderr); ! 311: fflush(stdout); ! 312: close_rewind(); ! 313: exit(X_REWRITE); ! 314: } ! 315: ! 316: char *rawname(cp) ! 317: char *cp; ! 318: { ! 319: static char rawbuf[32]; ! 320: char *rindex(); ! 321: char *dp = rindex(cp, '/'); ! 322: ! 323: if (dp == 0) ! 324: return (0); ! 325: *dp = 0; ! 326: strcpy(rawbuf, cp); ! 327: *dp = '/'; ! 328: strcat(rawbuf, "/r"); ! 329: strcat(rawbuf, dp+1); ! 330: return (rawbuf); ! 331: }
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