farrokhi/pg_filedump
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Set exit status if something goes wrong.

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Aleksander Alekseev
This commit is contained in:
Teodor Sigaev 2016-09-23 15:43:11 +03:00
parent 052ed01129
commit 1c9dd6b728
1 changed files with 79 additions and 2 deletions
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81
pg_filedump.c
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@ -67,6 +67,9 @@ static unsigned int bytesToFormat = 0;
/* Block version number */
static unsigned int blockVersion = 0;
/* Program exit code */
static int exitCode = 0;
/***
* Function Prototypes
*/
@ -191,6 +194,7 @@ ConsumeOptions(int numOptions, char **options)
{
rc = OPT_RC_INVALID;
printf("Error: Missing range start identifier.\n");
exitCode = 1;
break;
}
@ -205,6 +209,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Invalid range start identifier <%s>.\n",
optionString);
exitCode = 1;
break;
}
@ -230,6 +235,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Requested block range start <%d> is "
"greater than end <%d>.\n", blockStart, range);
exitCode = 1;
break;
}
}
@ -265,6 +271,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Invalid block size requested <%s>.\n",
optionString);
exitCode = 1;
break;
}
}
@ -284,6 +291,7 @@ ConsumeOptions(int numOptions, char **options)
{
rc = OPT_RC_INVALID;
printf("Error: Missing segment size identifier.\n");
exitCode = 1;
break;
}
@ -296,6 +304,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Invalid segment size requested <%s>.\n",
optionString);
exitCode = 1;
break;
}
}
@ -316,6 +325,7 @@ ConsumeOptions(int numOptions, char **options)
{
rc = OPT_RC_INVALID;
printf("Error: Missing segment number identifier.\n");
exitCode = 1;
break;
}
@ -328,6 +338,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Invalid segment number requested <%s>.\n",
optionString);
exitCode = 1;
break;
}
}
@ -348,6 +359,7 @@ ConsumeOptions(int numOptions, char **options)
{
rc = OPT_RC_FILE;
printf("Error: Could not open file <%s>.\n", optionString);
exitCode = 1;
break;
}
}
@ -361,6 +373,7 @@ ConsumeOptions(int numOptions, char **options)
{
rc = OPT_RC_FILE;
printf("Error: Missing file name to dump.\n");
exitCode = 1;
}
break;
}
@ -374,6 +387,7 @@ ConsumeOptions(int numOptions, char **options)
{
rc = OPT_RC_INVALID;
printf("Error: Invalid option string <%s>.\n", optionString);
exitCode = 1;
break;
}
@ -435,6 +449,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Options <y> and <x> are "
"mutually exclusive.\n");
exitCode = 1;
}
break;
@ -446,12 +461,14 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Options <x> and <y> are "
"mutually exclusive.\n");
exitCode = 1;
}
break;
default:
rc = OPT_RC_INVALID;
printf("Error: Unknown option <%c>.\n", optionString[y]);
exitCode = 1;
break;
}
@ -462,7 +479,10 @@ ConsumeOptions(int numOptions, char **options)
}
if (rc == OPT_RC_DUPLICATE)
{
printf("Error: Duplicate option listed <%c>.\n", duplicateSwitch);
exitCode = 1;
}
/* If the user requested a control file dump, a pure binary */
/* block dump or a non-interpreted formatted dump, mask off */
@ -479,6 +499,7 @@ ConsumeOptions(int numOptions, char **options)
rc = OPT_RC_INVALID;
printf("Error: Invalid options used for Control File dump.\n"
" Only options <Sf> may be used with <c>.\n");
exitCode = 1;
}
else
{
@ -546,8 +567,12 @@ GetBlockSize()
if (bytesRead == pageHeaderSize)
localSize = (unsigned int) PageGetPageSize(&localCache);
else
{
printf("Error: Unable to read full page header from block 0.\n"
" ===> Read %u bytes", bytesRead);
" ===> Read %u bytes\n", bytesRead);
exitCode = 1;
}
return (localSize);
}
@ -787,7 +812,10 @@ FormatHeader(Page page, BlockNumber blkno)
|| (pageHeader->pd_lower > blockSize)
|| (pageHeader->pd_upper < pageHeader->pd_lower)
|| (pageHeader->pd_special > blockSize))
{
printf(" Error: Invalid header information.\n\n");
exitCode = 1;
}
if (blockOptions & BLOCK_CHECKSUMS)
{
@ -795,17 +823,23 @@ FormatHeader(Page page, BlockNumber blkno)
uint16 calc_checksum = pg_checksum_page(page, delta + blkno);
if (calc_checksum != pageHeader->pd_checksum)
{
printf(" Error: checksum failure: calculated 0x%04x.\n\n",
calc_checksum);
exitCode = 1;
}
}
}
/* If we have reached the end of file while interpreting the header, let */
/* the user know about it */
if (rc == EOF_ENCOUNTERED)
{
printf
(" Error: End of block encountered within the header."
" Bytes read: %4u.\n\n", bytesToFormat);
exitCode = 1;
}
/* A request to dump the formatted binary of the block (header, */
/* items and special section). It's best to dump even on an error */
@ -840,8 +874,11 @@ FormatItemBlock(Page page)
if (maxOffset == 0)
printf(" Empty block - no items listed \n\n");
else if ((maxOffset < 0) || (maxOffset > blockSize))
{
printf(" Error: Item index corrupt on block. Offset: <%d>.\n\n",
maxOffset);
exitCode = 1;
}
else
{
int formatAs;
@ -914,9 +951,12 @@ FormatItemBlock(Page page)
/* formatting */
if ((itemOffset + itemSize > blockSize) ||
(itemOffset + itemSize > bytesToFormat))
{
printf(" Error: Item contents extend beyond block.\n"
" BlockSize<%d> Bytes Read<%d> Item Start<%d>.\n",
blockSize, bytesToFormat, itemOffset + itemSize);
exitCode = 1;
}
else
{
/* If the user requests that the items be interpreted as */
@ -954,7 +994,10 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
if (numBytes < SizeOfIptrData)
{
if (numBytes)
{
printf(" Error: This item does not look like an index item.\n");
exitCode = 1;
}
}
else
{
@ -970,8 +1013,11 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
IndexTupleHasVarwidths(itup) ? 1 : 0);
if (numBytes != IndexTupleSize(itup))
{
printf(" Error: Item size difference. Given <%u>, "
"Internal <%d>.\n", numBytes, (int) IndexTupleSize(itup));
exitCode = 1;
}
}
}
else if (formatAs == ITEM_SPG_INNER)
@ -980,7 +1026,10 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
if (numBytes < SGITHDRSZ)
{
if (numBytes)
{
printf(" Error: This item does not look like an SPGiST item.\n");
exitCode = 1;
}
}
else
{
@ -993,8 +1042,11 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
itup->prefixSize);
if (numBytes != itup->size)
{
printf(" Error: Item size difference. Given <%u>, "
"Internal <%d>.\n", numBytes, (int) itup->size);
exitCode = 1;
}
else if (itup->prefixSize == MAXALIGN(itup->prefixSize))
{
int i;
@ -1036,7 +1088,10 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
if (numBytes < SGLTHDRSZ)
{
if (numBytes)
{
printf(" Error: This item does not look like an SPGiST item.\n");
exitCode = 1;
}
}
else
{
@ -1050,8 +1105,11 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
itup->heapPtr.ip_posid);
if (numBytes != itup->size)
{
printf(" Error: Item size difference. Given <%u>, "
"Internal <%d>.\n", numBytes, (int) itup->size);
exitCode = 1;
}
}
}
else
@ -1062,7 +1120,10 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
if (numBytes < alignedSize)
{
if (numBytes)
{
printf(" Error: This item does not look like a heap item.\n");
exitCode = 1;
}
}
else
{
@ -1169,10 +1230,14 @@ FormatItem(unsigned int numBytes, unsigned int startIndex,
* array
*/
if (computedLength != localHoff)
{
printf
(" Error: Computed header length not equal to header size.\n"
" Computed <%u> Header: <%d>\n", computedLength,
localHoff);
exitCode = 1;
}
else if ((infoMask & HEAP_HASNULL) && bitmapLength)
{
printf(" t_bits: ");
@ -1208,6 +1273,7 @@ FormatSpecial()
case SPEC_SECT_ERROR_UNKNOWN:
case SPEC_SECT_ERROR_BOUNDARY:
printf(" Error: Invalid special section encountered.\n");
exitCode = 1;
break;
case SPEC_SECT_SEQUENCE:
@ -1362,6 +1428,7 @@ FormatSpecial()
/* No idea what type of special section this is */
default:
printf(" Unknown special section type. Type: <%u>.\n", specialType);
exitCode = 1;
break;
}
@ -1369,8 +1436,12 @@ FormatSpecial()
if (blockOptions & BLOCK_FORMAT)
{
if (specialType == SPEC_SECT_ERROR_BOUNDARY)
{
printf(" Error: Special section points off page."
" Unable to dump contents.\n");
exitCode = 1;
}
else
FormatBinary(specialSize, specialOffset);
}
@ -1551,6 +1622,8 @@ FormatControl()
/* If we have an error, force a formatted dump so we can see */
/* where things are going wrong */
controlOptions |= CONTROL_FORMAT;
exitCode = 1;
}
/* Dump hex and ascii representation of data */
@ -1640,6 +1713,7 @@ DumpFileContents()
printf("Error: Seek error encountered before requested "
"start block <%d>.\n", blockStart);
contentsToDump = 0;
exitCode = 1;
}
else
currentBlock = blockStart;
@ -1734,8 +1808,11 @@ main(int argv, char **argc)
if (buffer)
DumpFileContents();
else
{
printf("\nError: Unable to create buffer of size <%d>.\n",
blockSize);
exitCode = 1;
}
}
}
@ -1746,5 +1823,5 @@ main(int argv, char **argc)
if (buffer)
free(buffer);
exit(0);
exit(exitCode);
}