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STABLE14-vos-validate-dumpfile-20070719

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based on code from jon nials
validate a dumpfile as being complete (look for end of dump signature)


(cherry picked from commit 982f455debcb50d0a59b0997085e7b2e9475b604)
This commit is contained in:
Derrick Brashear 2007-07-19 15:57:54 +00:00
parent f879aed62b
commit 6bc7d632d3
1 changed files with 22 additions and 0 deletions
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22
src/volser/vos.c
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@ -57,7 +57,12 @@ RCSID
#include <rx/rxkad.h>
#include "volser.h"
#include "volint.h"
#include <afs/ihandle.h>
#include <afs/vnode.h>
#include <afs/volume.h>
#include "dump.h"
#include "lockdata.h"
#ifdef AFS_AIX32_ENV
#include <signal.h>
#endif
@ -315,6 +320,9 @@ WriteData(struct rx_call *call, char *rock)
long blksize;
afs_int32 error, code;
int ufdIsOpen = 0;
afs_hyper_t filesize, currOffset;
afs_uint32 buffer;
afs_uint32 got;
error = 0;
@ -335,6 +343,20 @@ WriteData(struct rx_call *call, char *rock)
goto wfail;
}
}
/* test if we have a valid dump */
hset64(filesize, 0, 0);
USD_SEEK(ufd, filesize, SEEK_END, &currOffset);
hset64(filesize, hgethi(currOffset), hgetlo(currOffset)-sizeof(afs_uint32));
USD_SEEK(ufd, filesize, SEEK_SET, &currOffset);
USD_READ(ufd, &buffer, sizeof(afs_uint32), &got);
if ((got != sizeof(afs_uint32)) || (ntohl(buffer) != DUMPENDMAGIC)) {
fprintf(STDERR, "Signature missing from end of file '%s'\n", filename);
error = VOLSERBADOP;
goto wfail;
}
hset64(filesize, 0, 0);
USD_SEEK(ufd, filesize, SEEK_SET, &currOffset);
/* rewind, we are done */
code = SendFile(ufd, call, blksize);
if (code) {
error = code;