2.11BSD#431 - /usr/src/old/dump/dumpmain.c

   1: static  char *sccsid = "@(#)dumpmain.c	1.2 (Berkeley) 10/16/80";
   2: #include "dump.h"
   3: 
   4: int notify = 0; /* notify operator flag */
   5: long    blockswritten = 0L; /* number of blocks written on current tape */
   6: int tapeno = 0; /* current tape number */
   7: int density = 160;  /* density in 0.1" units */
   8: 
   9: main(argc, argv)
  10:     int argc;
  11:     char    *argv[];
  12: {
  13:     char        *arg;
  14:     register    i;
  15:     float       fetapes;
  16:     register    struct  fstab   *dt;
  17: 
  18:     time(&(spcl.c_date));
  19: 
  20:     tsize = 2300L*12L*10L;
  21:     tape = TAPE;
  22:     disk = DISK;
  23:     increm = NINCREM;
  24: 
  25:     incno = '9';
  26:     uflag = 0;
  27:     arg = "u";
  28:     if(argc > 1) {
  29:         argv++;
  30:         argc--;
  31:         arg = *argv;
  32:         if (*arg == '-')
  33:             arg++;
  34:     }
  35:     while(*arg)
  36:     switch (*arg++) {
  37:     case 'w':
  38:         lastdump('w');      /* tell us only what has to be done */
  39:         exit(0);
  40:         break;
  41:     case 'W':           /* what to do */
  42:         lastdump('W');      /* tell us the current state of what has been done */
  43:         exit(0);        /* do nothing else */
  44:         break;
  45: 
  46:     case 'J':           /* update old to new */
  47:         o_nconvert();
  48:         exit(0);        /* do nothing else */
  49:         break;
  50: 
  51:     case 'f':           /* output file */
  52:         if(argc > 1) {
  53:             argv++;
  54:             argc--;
  55:             tape = *argv;
  56:         }
  57:         break;
  58: 
  59:     case 'd':           /* density, in bits per inch */
  60:         if (argc > 1) {
  61:             argv++;
  62:             argc--;
  63:             density = atoi(*argv) / 10;
  64:         }
  65:         break;
  66: 
  67:     case 's':           /* tape size, feet */
  68:         if(argc > 1) {
  69:             argv++;
  70:             argc--;
  71:             tsize = atol(*argv);
  72:             tsize *= 12L*10L;
  73:         }
  74:         break;
  75: 
  76:     case '0':           /* dump level */
  77:     case '1':
  78:     case '2':
  79:     case '3':
  80:     case '4':
  81:     case '5':
  82:     case '6':
  83:     case '7':
  84:     case '8':
  85:     case '9':
  86:         incno = arg[-1];
  87:         break;
  88: 
  89:     case 'u':           /* update /etc/dumpdates */
  90:         uflag++;
  91:         break;
  92: 
  93:     case 'n':           /* notify operators */
  94:         notify++;
  95:         break;
  96: 
  97:     default:
  98:         printf("bad key '%c%'\n", arg[-1]);
  99:         Exit(X_ABORT);
 100:     }
 101:     if(argc > 1) {
 102:         argv++;
 103:         argc--;
 104:         disk = *argv;
 105:     }
 106: 
 107:     if (signal(SIGHUP, sighup) == SIG_IGN)
 108:         signal(SIGHUP, SIG_IGN);
 109:     if (signal(SIGTRAP, sigtrap) == SIG_IGN)
 110:         signal(SIGTRAP, SIG_IGN);
 111:     if (signal(SIGFPE, sigfpe) == SIG_IGN)
 112:         signal(SIGFPE, SIG_IGN);
 113:     if (signal(SIGBUS, sigbus) == SIG_IGN)
 114:         signal(SIGBUS, SIG_IGN);
 115:     if (signal(SIGSEGV, sigsegv) == SIG_IGN)
 116:         signal(SIGSEGV, SIG_IGN);
 117:     if (signal(SIGTERM, sigterm) == SIG_IGN)
 118:         signal(SIGTERM, SIG_IGN);
 119: 
 120: 
 121:     if (signal(SIGINT, interrupt) == SIG_IGN)
 122:         signal(SIGINT, SIG_IGN);
 123: 
 124:     set_operators();    /* /etc/group snarfed */
 125:     /*
 126: 	 *	disk can be either the character or block special file name,
 127: 	 *	or the full file system path name.
 128: 	 */
 129:     if (dt = getfsfile(disk))
 130:         disk = rawname(dt->fs_spec);
 131:     else
 132:         if (dt = getfsspec(disk))
 133:             disk = rawname(disk);
 134:         else
 135:             dt = getfsspec(deraw(disk));
 136: 
 137:     getitime();     /* /etc/dumpdates snarfed */
 138: 
 139:     msg("Date of this level %c dump: %s\n", incno, prdate(spcl.c_date));
 140:     msg("Date of last level %c dump: %s\n", incno, prdate(spcl.c_ddate));
 141:     msg("Dumping %s ", disk);
 142:     if (dt != 0)
 143:         msgtail("(%s) ", dt->fs_file);
 144:     msgtail("to %s\n", tape);
 145: 
 146:     fi = open(disk, 0);
 147:     if (fi < 0) {
 148:         msg("Cannot open %s\n", disk);
 149:         Exit(X_ABORT);
 150:     }
 151:     CLR(clrmap);
 152:     CLR(dirmap);
 153:     CLR(nodmap);
 154:     esize = 0;
 155: 
 156:     msg("mapping (Pass I) [regular files]\n");
 157:     pass(mark, (short *)NULL);      /* mark updates esize */
 158: 
 159:     do {
 160:         msg("mapping (Pass II) [directories]\n");
 161:         nadded = 0;
 162:         pass(add, dirmap);
 163:     } while(nadded);
 164: 
 165:     bmapest(clrmap);
 166:     bmapest(nodmap);
 167: 
 168:     fetapes =
 169:         (    esize      /* blocks */
 170:             *DEV_BSIZE  /* bytes / block */
 171:             *(1.0/density)  /* 0.1" / byte */
 172:           +
 173:              esize      /* blocks */
 174:             *(1.0/NTREC)    /* IRG's / block */
 175:             *7      /* 0.1" / IRG */
 176:         ) * (1.0 / tsize )  /* tape / 0.1" */
 177:     ;
 178:     etapes = fetapes;       /* truncating assignment */
 179:     etapes++;
 180:     /*
 181: 	 *	esize is typically about 5% too low; we frob it here
 182: 	 */
 183:     esize += ((5*esize)/100);
 184:     msg("estimated %ld tape blocks on %3.2f tape(s).\n", esize, fetapes);
 185: 
 186:     otape();            /* bitmap is the first to tape write */
 187:     time(&(tstart_writing));
 188:     bitmap(clrmap, TS_CLRI);
 189: 
 190:     msg("dumping (Pass III) [directories]\n");
 191:     pass(dump, dirmap);
 192: 
 193:     msg("dumping (Pass IV) [regular files]\n");
 194:     pass(dump, nodmap);
 195: 
 196:     spcl.c_type = TS_END;
 197:     for(i=0; i<NTREC; i++)
 198:         spclrec();
 199:     msg("DUMP: %ld tape blocks on %d tape(s)\n",spcl.c_tapea,spcl.c_volume);
 200:     msg("DUMP IS DONE\n");
 201: 
 202:     putitime();
 203:     close(to);
 204:     rewind();
 205:     broadcast("DUMP IS DONE!\7\7\n");
 206:     Exit(X_FINOK);
 207: }
 208: 
 209: int sighup(){   msg("SIGHUP()  try rewriting\n"); sigAbort();}
 210: int sigtrap(){  msg("SIGTRAP()  try rewriting\n"); sigAbort();}
 211: int sigfpe(){   msg("SIGFPE()  try rewriting\n"); sigAbort();}
 212: int sigbus(){   msg("SIGBUS()  try rewriting\n"); sigAbort();}
 213: int sigsegv(){  msg("SIGSEGV()  ABORTING!\n"); abort();}
 214: int sigalrm(){  msg("SIGALRM()  try rewriting\n"); sigAbort();}
 215: int sigterm(){  msg("SIGTERM()  try rewriting\n"); sigAbort();}
 216: 
 217: sigAbort()
 218: {
 219:     msg("Rewriting attempted as response to unknown signal.\n");
 220:     fflush(stderr);
 221:     fflush(stdout);
 222:     close_rewind();
 223:     exit(X_REWRITE);
 224: }
 225: 
 226: char *rawname(cp)
 227:     char *cp;
 228: {
 229:     static char rawbuf[MAXPATHLEN];
 230:     char *dp = rindex(cp, '/');
 231: 
 232:     if (dp == 0)
 233:         return ((char *) 0);
 234:     *dp = '\0';
 235:     strcpy(rawbuf, cp);
 236:     *dp++ = '/';
 237:     strcat(rawbuf, "/r");
 238:     strcat(rawbuf, dp);
 239:     return (rawbuf);
 240: }
 241: 
 242: char *deraw(cp)
 243:     char *cp;
 244: {
 245:     static char rawbuf[MAXPATHLEN];
 246:     register char *dp;
 247:     register char *tp;
 248: 
 249:     strcpy(rawbuf, cp);
 250: 
 251:     dp = rindex(rawbuf, '/');
 252:     if (dp++ == 0)
 253:         return((char *) 0);
 254: 
 255:     tp = dp++;
 256:     while (*tp++ = *dp++);
 257:     return(rawbuf);
 258: }

Defined functions

Defined variables