+static char *sccsid = "@(#)dumpmain.c 1.1 (Berkeley) %G%";
+#include "dump.h"
+
+int notify = 0; /* notify operator flag */
+int blockswritten = 0; /* number of blocks written on current tape */
+int tapeno = 0; /* current tape number */
+int density = 160; /* density in 0.1" units */
+
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ char *arg;
+ register i;
+ float fetapes;
+ register struct fstab *dt;
+
+ time(&(spcl.c_date));
+
+ tsize = 2300L*12L*10L;
+ tape = TAPE;
+ disk = DISK;
+ increm = NINCREM;
+
+ incno = '9';
+ uflag = 0;
+ arg = "u";
+ if(argc > 1) {
+ argv++;
+ argc--;
+ arg = *argv;
+ if (*arg == '-')
+ argc++;
+ }
+ while(*arg)
+ switch (*arg++) {
+ case 'W': /* what to do */
+ lastdump();
+ exit(0); /* do nothing else */
+ break;
+
+ case 'J': /* update old to new */
+ o_nconvert();
+ exit(0); /* do nothing else */
+ break;
+
+ case 'f': /* output file */
+ if(argc > 1) {
+ argv++;
+ argc--;
+ tape = *argv;
+ }
+ break;
+
+ case 'd': /* density, in bits per inch */
+ if (argc > 1) {
+ argv++;
+ argc--;
+ density = atoi(*argv) / 10;
+ }
+ break;
+
+ case 's': /* tape size, feet */
+ if(argc > 1) {
+ argv++;
+ argc--;
+ tsize = atol(*argv);
+ tsize *= 12L*10L;
+ }
+ break;
+
+ case '0': /* dump level */
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ incno = arg[-1];
+ break;
+
+ case 'u': /* update /etc/dumpdates */
+ uflag++;
+ break;
+
+ case 'n': /* notify operators */
+ notify++;
+ break;
+
+ default:
+ printf("bad key '%c%'\n", arg[-1]);
+ Exit(X_ABORT);
+ }
+ if(argc > 1) {
+ argv++;
+ argc--;
+ disk = *argv;
+ }
+
+ if (signal(SIGHUP, sighup) == SIG_IGN)
+ signal(SIGHUP, SIG_IGN);
+ if (signal(SIGTRAP, sigtrap) == SIG_IGN)
+ signal(SIGTRAP, SIG_IGN);
+ if (signal(SIGFPE, sigfpe) == SIG_IGN)
+ signal(SIGFPE, SIG_IGN);
+ if (signal(SIGBUS, sigbus) == SIG_IGN)
+ signal(SIGBUS, SIG_IGN);
+ if (signal(SIGSEGV, sigsegv) == SIG_IGN)
+ signal(SIGSEGV, SIG_IGN);
+ if (signal(SIGTERM, sigterm) == SIG_IGN)
+ signal(SIGTERM, SIG_IGN);
+
+
+ if (signal(SIGINT, interrupt) == SIG_IGN)
+ signal(SIGINT, SIG_IGN);
+
+ set_operators(); /* /etc/group snarfed */
+ getfstab(); /* /etc/fstab snarfed */
+ /*
+ * disk can be either the full special file name,
+ * the suffix of the special file name,
+ * the special name missing the leading '/',
+ * the file system name with or without the leading '/'.
+ */
+ dt = fstabsearch(disk);
+ if (dt != 0)
+ disk = rawname(dt->fs_spec);
+ getitime(); /* /etc/dumpdates snarfed */
+
+ msg("Date of this level %c dump: %s\n", incno, prdate(spcl.c_date));
+ msg("Date of last level %c dump: %s\n", incno, prdate(spcl.c_ddate));
+ msg("Dumping %s ", disk);
+ if (dt != 0)
+ msgtail("(%s) ", dt->fs_file);
+ msgtail("to %s\n", tape);
+
+ fi = open(disk, 0);
+ if (fi < 0) {
+ msg("Cannot open %s\n", disk);
+ Exit(X_ABORT);
+ }
+ CLR(clrmap);
+ CLR(dirmap);
+ CLR(nodmap);
+ esize = 0;
+
+ msg("mapping (Pass I) [regular files]\n");
+ pass(mark, (short *)NULL); /* mark updates esize */
+
+ do {
+ msg("mapping (Pass II) [directories]\n");
+ nadded = 0;
+ pass(add, dirmap);
+ } while(nadded);
+
+ bmapest(clrmap);
+ bmapest(nodmap);
+
+ fetapes =
+ ( esize /* blocks */
+ *BSIZE /* bytes / block */
+ *(1.0/density) /* 0.1" / byte */
+ +
+ esize /* blocks */
+ *(1.0/NTREC) /* IRG's / block */
+ *7 /* 0.1" / IRG */
+ ) * (1.0 / tsize ) /* tape / 0.1" */
+ ;
+ etapes = fetapes; /* truncating assignment */
+ etapes++;
+ /*
+ * esize is typically about 5% too low; we frob it here
+ */
+ esize += ((5*esize)/100);
+ msg("estimated %ld tape blocks on %3.2f tape(s).\n", esize, fetapes);
+
+ otape(); /* bitmap is the first to tape write */
+ time(&(tstart_writing));
+ bitmap(clrmap, TS_CLRI);
+
+ msg("dumping (Pass III) [directories]\n");
+ pass(dump, dirmap);
+
+ msg("dumping (Pass IV) [regular files]\n");
+ pass(dump, nodmap);
+
+ spcl.c_type = TS_END;
+ for(i=0; i<NTREC; i++)
+ spclrec();
+ msg("DUMP: %ld tape blocks on %d tape(s)\n",spcl.c_tapea,spcl.c_volume);
+ msg("DUMP IS DONE\n");
+
+ putitime();
+ close(to);
+ rewind();
+ broadcast("DUMP IS DONE!\7\7\n");
+ Exit(X_FINOK);
+}
+
+int sighup(){ msg("SIGHUP() try rewriting\n"); sigAbort();}
+int sigtrap(){ msg("SIGTRAP() try rewriting\n"); sigAbort();}
+int sigfpe(){ msg("SIGFPE() try rewriting\n"); sigAbort();}
+int sigbus(){ msg("SIGBUS() try rewriting\n"); sigAbort();}
+int sigsegv(){ msg("SIGSEGV() ABORTING!\n"); abort();}
+int sigalrm(){ msg("SIGALRM() try rewriting\n"); sigAbort();}
+int sigterm(){ msg("SIGTERM() try rewriting\n"); sigAbort();}
+
+sigAbort()
+{
+ msg("Rewriting attempted as response to unknown signal.\n");
+ fflush(stderr);
+ fflush(stdout);
+ close_rewind();
+ exit(X_REWRITE);
+}
+
+char *rawname(cp)
+ char *cp;
+{
+ static char rawbuf[32];
+ char *dp = rindex(cp, '/');
+
+ if (dp == 0)
+ return (0);
+ *dp = 0;
+ strcpy(rawbuf, cp);
+ *dp = '/';
+ strcat(rawbuf, "/r");
+ strcat(rawbuf, dp+1);
+ return (rawbuf);
+}
projects / unix-history / commitdiff