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BACKUP(5)XENIX System V (1 ap 1989)



backup - opa aa aoo cce


Koa backup restore coyc ac e aa aoo cce c ao e.

ea, coepaa o, coco ac aooa, ac oo ac, py ace, ocax aao aoo cce, py ace, ocax a aoo cce ac, ocae opy oy acy.

ac aooa epa ac aoo oca ee opa, opeee cpyypo, aeo:

#include <dumprestor.h>

o cpyyp dumprestor oca e.

NTREC opeee oeco oo, a o 512 a, eco ac a ee. MLEN opeee oeco coe ap . MSIZ opeee oeco co ap .

TS_entries coyec oe c_type opae a aooa. T x ae pee e:

TS_TYPE Mea oa. TS_INODE aee ceye a aao. oe c_dinide ec oe ecoo ecpopa aa ca coep , yaae aa. TS_BITS aee ceye aca .B o ace a cooecye aoy ecoy ecpopy aa opyex ao. TS_ADDR ooe o aa (TS_INODE). Cop ocae c_count e. TS_END ac oa a ee TS_CLRI aee ceye aca . a aca coepaa o ooy y cex ecx ecpopo ao, oope yc o pe opoa. MAGIC Bce o aooa e o co c_magic. CHECKSUM Kopoa cya aooo.

Cpyypa aooa ee ceye o:

c_type T aooa. c_date aa opoa. c_ddate aa opoa aoo cce. c_volume Hoep oa o. c_tapea Tey oep oa ac (a oa paa 512 a). c_inumber Hoep ecoo ecpopa aa, oop opyec, ec aooa opeee a TS_INODE. c_magic Coep ey MAGIC, yoayc e, yopoey cyae eoxooc. c_checsum Coep ey, oyey aece opoo cy oa. c_dinode pecae coo o ecoo ecpopa aa, oyc aooo ccee. c_count aee ceye ce coo, ocax a. Co ec ye, ec o, cooecy coy, ocycye aoo ccee; poo cyae co oe o y. Ec o e pecae aoo ccee, o opyec ae eec pap. Ec e cyecye ocaoo eca o oe, o oca ce o ae, o TS_ADDR yy papoca o ay, aca oce oceeo ye ocaoo oa. c_addr o acc coo, oope coyc a ocao e.

Ka o, ca oce, aaaec apepo e (oae a oe aa). oce o aaaec oo TS_END ae apepo e.

Cpyypa idates ocae oy xoa a, e xpac oceoaeoc opoa.

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