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/* Simple program to dump out all records of TDB */
#include <stdint.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "xenstore_lib.h"
#include "tdb.h"
#include "talloc.h"
#include "utils.h"
struct record_hdr {
uint32_t num_perms;
uint32_t datalen;
uint32_t childlen;
struct xs_permissions perms[0];
};
static uint32_t total_size(struct record_hdr *hdr)
{
return sizeof(*hdr) + hdr->num_perms * sizeof(struct xs_permissions)
+ hdr->datalen + hdr->childlen;
}
static char perm_to_char(enum xs_perm_type perm)
{
return perm == XS_PERM_READ ? 'r' :
perm == XS_PERM_WRITE ? 'w' :
perm == XS_PERM_NONE ? '-' :
perm == (XS_PERM_READ|XS_PERM_WRITE) ? 'b' :
'?';
}
int main(int argc, char *argv[])
{
TDB_DATA key;
TDB_CONTEXT *tdb;
if (argc != 2)
barf("Usage: xs_tdb_dump <tdbfile>");
tdb = tdb_open(talloc_strdup(NULL, argv[1]), 0, 0, O_RDONLY, 0);
if (!tdb)
barf_perror("Could not open %s", argv[1]);
key = tdb_firstkey(tdb);
while (key.dptr) {
TDB_DATA data;
struct record_hdr *hdr;
data = tdb_fetch(tdb, key);
hdr = (void *)data.dptr;
if (data.dsize < sizeof(*hdr))
fprintf(stderr, "%.*s: BAD truncated\n",
(int)key.dsize, key.dptr);
else if (data.dsize != total_size(hdr))
fprintf(stderr, "%.*s: BAD length %i for %i/%i/%i (%i)\n",
(int)key.dsize, key.dptr, (int)data.dsize,
hdr->num_perms, hdr->datalen,
hdr->childlen, total_size(hdr));
else {
unsigned int i;
char *p;
printf("%.*s: ", (int)key.dsize, key.dptr);
for (i = 0; i < hdr->num_perms; i++)
printf("%s%c%i",
i == 0 ? "" : ",",
perm_to_char(hdr->perms[i].perms),
hdr->perms[i].id);
p = (void *)&hdr->perms[hdr->num_perms];
printf(" %.*s\n", hdr->datalen, p);
p += hdr->datalen;
for (i = 0; i < hdr->childlen; i += strlen(p+i)+1)
printf("\t-> %s\n", p+i);
}
key = tdb_nextkey(tdb, key);
}
return 0;
}
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