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/*-------------------------------------------------------------------------
* Copyright (C) 1997 National Center for Supercomputing Applications.
* All rights reserved.
*
*-------------------------------------------------------------------------
*
* Created: debug.c
* Jul 18 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Debugs an existing HDF5 file at a low level.
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
#include <H5private.h>
#include <H5Aprivate.h>
#include <H5Bprivate.h>
#include <H5Fprivate.h>
#include <H5Gprivate.h>
#include <H5Hprivate.h>
#include <H5Oprivate.h>
#define INDENT 3
#define VCOL 50
/*-------------------------------------------------------------------------
* Function: main
*
* Usage: debug FILENAME [OFFSET]
*
* Return: Success: exit (0)
*
* Failure: exit (non-zero)
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 18 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
main(int argc, char *argv[])
{
hid_t fid;
H5F_t *f;
haddr_t addr;
uint8 sig[16];
intn i;
herr_t status = SUCCEED;
haddr_t extra;
/*
* Open the file and get the file descriptor.
*/
if ((fid = H5Fopen(argv[1], 0, 0)) < 0) {
fprintf(stderr, "cannot open file\n");
HDexit(1);
}
if (NULL == (f = H5A_object(fid))) {
fprintf(stderr, "cannot obtain H5F_t pointer\n");
HDexit(2);
}
/*
* Parse command arguments.
*/
H5F_addr_reset(&addr);
H5F_addr_reset(&extra);
if (argc > 2) {
printf("New address: %s\n", argv[2]);
addr.offset = HDstrtol(argv[2], NULL, 0);
}
if (argc > 3) {
extra.offset = HDstrtol(argv[3], NULL, 0);
}
/*
* Read the signature at the specified file position.
*/
printf("Reading signature at address ");
H5F_addr_print(stdout, &addr);
printf(" (rel)\n");
if (H5F_block_read(f, &addr, sizeof(sig), sig) < 0) {
fprintf(stderr, "cannot read signature\n");
HDexit(3);
}
if (!HDmemcmp(sig, H5F_SIGNATURE, H5F_SIGNATURE_LEN)) {
/*
* Debug the boot block.
*/
status = H5F_debug(f, &addr, stdout, 0, VCOL);
} else if (!HDmemcmp(sig, H5H_MAGIC, H5H_SIZEOF_MAGIC)) {
/*
* Debug a heap.
*/
status = H5H_debug(f, &addr, stdout, 0, VCOL);
} else if (!HDmemcmp(sig, H5G_NODE_MAGIC, H5G_NODE_SIZEOF_MAGIC)) {
/*
* Debug a symbol table node.
*/
status = H5G_node_debug(f, &addr, stdout, 0, VCOL, &extra);
} else if (!HDmemcmp(sig, H5B_MAGIC, H5B_SIZEOF_MAGIC)) {
/*
* Debug a B-tree. B-trees are debugged through the B-tree
* subclass. The subclass identifier is the byte immediately
* after the B-tree signature.
*/
H5B_subid_t subtype = (H5B_subid_t)sig[H5B_SIZEOF_MAGIC];
switch (subtype) {
case H5B_SNODE_ID:
status = H5G_node_debug(f, &addr, stdout, 0, VCOL, &extra);
break;
default:
fprintf(stderr, "Unknown B-tree subtype %u\n", (unsigned) (subtype));
HDexit(4);
}
} else if (sig[0] == H5O_VERSION) {
/*
* This could be an object header. Since they don't have a signature
* it's a somewhat "ify" detection.
*/
status = H5O_debug(f, &addr, stdout, 0, VCOL);
} else {
/*
* Got some other unrecognized signature.
*/
printf("%-*s ", VCOL, "Signature:");
for (i = 0; i < 8; i++) {
if (sig[i] > ' ' && sig[i] <= '~' && '\\' != sig[i]) {
HDputchar(sig[i]);
} else if ('\\' == sig[i]) {
HDputchar('\\');
HDputchar('\\');
} else {
printf("\\%03o", sig[i]);
}
}
HDputchar('\n');
fprintf(stderr, "unknown signature\n");
HDexit(4);
}
if (status < 0) {
fprintf(stderr, "An error occurred\n");
HDexit(5);
}
H5Fclose(fid);
return 0;
}
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