X-Git-Url: https://git.wh0rd.org/?p=dump.git;a=blobdiff_plain;f=dump%2Fmain.c;h=ee6717272dc5dd661455eb7b7075f1472278d73a;hp=8fcf468d7b0851259628e1bb2e8f81f53c776f37;hb=633963a251fb12a63e43a7f6f2391dc9507972a7;hpb=e084ba00f03da98a6d260b0b3856aee2dfbb4c58 diff --git a/dump/main.c b/dump/main.c index 8fcf468..ee67172 100644 --- a/dump/main.c +++ b/dump/main.c @@ -2,8 +2,8 @@ * Ported to Linux's Second Extended File System as part of the * dump and restore backup suit * Remy Card , 1994-1997 - * Stelian Pop , 1999-2000 - * Stelian Pop - Alcôve , 2000 + * Stelian Pop , 1999-2000 + * Stelian Pop - Alcôve , 2000-2002 */ /*- @@ -41,7 +41,7 @@ #ifndef lint static const char rcsid[] = - "$Id: main.c,v 1.57 2001/08/16 09:37:59 stelian Exp $"; + "$Id: main.c,v 1.69 2002/01/31 10:49:17 stelian Exp $"; #endif /* not lint */ #include @@ -55,11 +55,13 @@ static const char rcsid[] = #include #include #include +#include #include #include #include #ifdef __linux__ +#include #ifdef HAVE_EXT2FS_EXT2_FS_H #include #else @@ -102,9 +104,12 @@ char *tapeprefix; /* prefix of the tape file */ char *dumpdates; /* name of the file containing dump date information*/ char lastlevel; /* dump level of previous dump */ char level; /* dump level of this dump */ +int bzipflag; /* compression is done using bzlib */ +int Afile = 0; /* archive file descriptor */ int uflag; /* update flag */ int Mflag; /* multi-volume flag */ int qflag; /* quit on errors flag */ +int breademax = 32; /* maximum number of bread errors before we quit */ char *eot_script; /* end of volume script fiag */ int diskfd; /* disk file descriptor */ int tapefd; /* tape file descriptor */ @@ -137,6 +142,7 @@ long xferrate; /* averaged transfer rate of all volumes */ long dev_bsize; /* block size of underlying disk device */ int dev_bshift; /* log2(dev_bsize) */ int tp_bshift; /* log2(TP_BSIZE) */ +dump_ino_t volinfo[TP_NINOS];/* which inode on which volume archive info */ #ifdef USE_QFA int gTapeposfd; @@ -178,6 +184,7 @@ static void obsolete __P((int *, char **[])); static void usage __P((void)); static void do_exclude_from_file __P((char *)); static void do_exclude_ino_str __P((char *)); +static void incompat_flags __P((int, char, char)); static dump_ino_t iexclude_list[IEXCLUDE_MAXNUM];/* the inode exclude list */ static int iexclude_num = 0; /* number of elements in the list */ @@ -185,13 +192,14 @@ static int iexclude_num = 0; /* number of elements in the list */ int main(int argc, char *argv[]) { - register dump_ino_t ino; - register int dirty; - register struct dinode *dp; - register struct fstab *dt; - register char *map; - register int ch; - int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1; + dump_ino_t ino; + int dirty; + struct dinode *dp; + struct fstab *dt; + char *map; + int ch; + int i, anydirskipped; + int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1; dump_ino_t maxino; struct STAT statbuf; dev_t filedev = 0; @@ -202,6 +210,7 @@ main(int argc, char *argv[]) #endif time_t tnow; char *diskparam; + char *Apath = NULL; spcl.c_label[0] = '\0'; spcl.c_date = time(NULL); @@ -232,7 +241,11 @@ main(int argc, char *argv[]) #endif /* USE_QFA */ while ((ch = getopt(argc, argv, - "0123456789aB:b:cd:e:E:f:F:h:L:" + "0123456789A:aB:b:cd:e:E:f:F:h:I:" +#ifdef HAVE_BZLIB + "j::" +#endif + "L:" #ifdef KERBEROS "k" #endif @@ -252,8 +265,21 @@ main(int argc, char *argv[]) level = ch; break; + case 'A': /* archive file */ + Apath = optarg; + if ((Afile = open(Apath, O_RDWR|O_CREAT|O_TRUNC, + S_IRUSR | S_IWUSR)) < 0) { + msg("Cannot open %s for writing: %s\n", + optarg, strerror(errno)); + msg("The ENTIRE dump is aborted.\n"); + exit(X_STARTUP); + } + memset(volinfo, 0, TP_NINOS * sizeof(dump_ino_t)); + break; + case 'a': /* `auto-size', Write to EOM. */ unlimited = 1; + aflag = 1; break; case 'B': /* blocks per output file */ @@ -315,6 +341,20 @@ main(int argc, char *argv[]) honorlevel = numarg("honor level", 0L, 10L); break; +#ifdef HAVE_BZLIB + case 'j': + compressed = 2; + bzipflag = 1; + if (optarg) + compressed = numarg("compress level", 1L, 9L); + break; +#endif /* HAVE_BZLIB */ + + case 'I': + breademax = + numarg ("number of errors to ignore", 1L, 0L); + break; + #ifdef KERBEROS case 'k': dokerberos = 1; @@ -411,11 +451,12 @@ main(int argc, char *argv[]) exit(X_STARTUP); } argc--; - if (Tflag && uflag) { - msg("You cannot use the T and u flags together.\n"); - msg("The ENTIRE dump is aborted.\n"); - exit(X_STARTUP); - } + incompat_flags(Tflag && uflag, 'T', 'u'); + incompat_flags(aflag && blocksperfile, 'a', 'B'); + incompat_flags(aflag && cartridge, 'a', 'c'); + incompat_flags(aflag && density, 'a', 'd'); + incompat_flags(aflag && tsize, 'a', 's'); + if (strcmp(tapeprefix, "-") == 0) { pipeout++; tapeprefix = "standard output"; @@ -474,6 +515,13 @@ main(int argc, char *argv[]) signal(SIGTERM, sig); if (signal(SIGINT, interrupt) == SIG_IGN) signal(SIGINT, SIG_IGN); +#ifdef SIGXCPU + signal(SIGXCPU, SIG_IGN); +#endif /* SIGXCPU */ +#ifdef SIGXFSZ + signal(SIGXFSZ, SIG_IGN); +#endif /* SIGXFSZ */ + set_operators(); /* /etc/group snarfed */ getfstab(); /* /etc/fstab snarfed */ @@ -483,7 +531,8 @@ main(int argc, char *argv[]) */ i = strlen(diskparam) - 1; if (i > 1 && diskparam[i] == '/') - diskparam[i] = '\0'; + if (!(i == 6 && !strcmp(diskparam, "LABEL=/"))) + diskparam[i] = '\0'; disk = get_device_name(diskparam); if (!disk) { /* null means the disk is some form @@ -610,6 +659,14 @@ main(int argc, char *argv[]) } /* end of size estimate */ #ifdef __linux__ + if ((diskfd = OPEN(disk, O_RDONLY)) < 0) { + msg("Cannot open %s\n", disk); + msg("The ENTIRE dump is aborted.\n"); + exit(X_STARTUP); + } +#ifdef BLKFLSBUF + (void)ioctl(diskfd, BLKFLSBUF); +#endif retval = dump_fs_open(disk, &fs); if (retval) { com_err(disk, retval, "while opening filesystem"); @@ -624,11 +681,6 @@ main(int argc, char *argv[]) msg("The ENTIRE dump is aborted.\n"); exit(X_STARTUP); } - if ((diskfd = OPEN(disk, O_RDONLY)) < 0) { - msg("Cannot open %s\n", disk); - msg("The ENTIRE dump is aborted.\n"); - exit(X_STARTUP); - } /* if no user label specified, use ext2 filesystem label if available */ if (spcl.c_label[0] == '\0') { const char *lbl; @@ -647,7 +699,7 @@ main(int argc, char *argv[]) tp_bshift = ffs(TP_BSIZE) - 1; if (TP_BSIZE != (1 << tp_bshift)) quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE); - maxino = fs->super->s_inodes_count; + maxino = fs->super->s_inodes_count + 1; #if 0 spcl.c_flags |= DR_NEWINODEFMT; #endif @@ -689,8 +741,8 @@ main(int argc, char *argv[]) msg("Label: %s\n", spcl.c_label); if (compressed) - msg("Compressing output at compression level %d\n", - compressed); + msg("Compressing output at compression level %d (%s)\n", + compressed, bzipflag ? "bzlib" : "zlib"); } #if defined(SIGINFO) @@ -811,10 +863,11 @@ main(int argc, char *argv[]) #ifdef USE_QFA if (tapepos) { msg("writing QFA positions to %s\n", gTapeposfile); - if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT, S_IRUSR | S_IWUSR)) < 0) + if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR | S_IWUSR)) < 0) quit("can't open tapeposfile\n"); /* print QFA-file header */ - sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date); + snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date); + gTps[sizeof(gTps) - 1] = '\0'; if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps)) quit("can't write tapeposfile\n"); sprintf(gTps, "ino\ttapeno\ttapepos\n"); @@ -886,6 +939,13 @@ main(int argc, char *argv[]) tend_writing = time(NULL); spcl.c_type = TS_END; + + if (Afile) { + volinfo[1] = ROOTINO; + memcpy(spcl.c_inos, volinfo, TP_NINOS * sizeof(dump_ino_t)); + spcl.c_flags |= DR_INODEINFO; + } + /* * Finish off the current tape record with trailer blocks, to ensure * at least the data in the last partial record makes it to tape. @@ -926,6 +986,9 @@ main(int argc, char *argv[]) spcl.c_tapea, tapekb, rate); } + if (Afile) + msg("Archiving dump to %s\n", Apath); + broadcast("DUMP IS DONE!\7\7\n"); msg("DUMP IS DONE\n"); Exit(X_FINOK); @@ -955,18 +1018,23 @@ usage(void) "k" #endif "MnqSu" - "] [-B records] [-b blocksize] [-d density]\n" - "\t%s [-e inode#,inode#,...] [-E file] [-f file] [-h level] " + "] [-A file] [-B records] [-b blocksize]\n" + "\t%s [-d density] [-e inode#,inode#,...] [-E file] [-f file]\n" + "\t%s [-h level] [-I nr errors] " +#ifdef HAVE_BZLIB + "[-j zlevel] " +#endif #ifdef USE_QFA "[-Q file] " #endif - "\n\t%s [-s feet] [-T date] " + "[-s feet]\n" + "\t%s [-T date] " #ifdef HAVE_ZLIB "[-z zlevel] " #endif "filesystem\n" "\t%s [-W | -w]\n", - __progname, white, white, __progname); + __progname, white, white, white, __progname); exit(X_STARTUP); } @@ -1063,6 +1131,7 @@ obsolete(int *argcp, char **argvp[]) for (flags = 0; *ap; ++ap) { switch (*ap) { + case 'A': case 'B': case 'b': case 'd': @@ -1184,3 +1253,12 @@ do_exclude_from_file(char *file) { } fclose(f); } + +static void incompat_flags(int cond, char flag1, char flag2) { + if (cond) { + msg("You cannot use the %c and %c flags together.\n", + flag1, flag2); + msg("The ENTIRE dump is aborted.\n"); + exit(X_STARTUP); + } +}