corruption

What could be causing this corruption in .docx files during httpwebrequest?

妖精的绣舞 提交于 2019-11-30 16:12:21
I am using httpwebrequest to post a file with some additional form data from an MVC app to a classic ASP site. If the file is a .docx, it always arrives as corrupted. Others seem to open fine, but it could be that their formats are more flexible. When I open the original and corrupted files in Sublime Text, I noticed that the corrupted file is missing a block of 0000 at the end. When I manually replace this block the file opens fine. Is there something I'm doing incorrectly in my .NET code that is causing this happen? Or is the problem more esoteric? The classic ASP code uses Persist's

How can I recover a corrupted, partially pickled file?

人走茶凉 提交于 2019-11-30 09:54:13
问题 My program was killed while serializing data (a dict ) to disk with dill . I cannot open the partially-written file now. Is it possible to partially or fully recover the data? If so, how? Here's what I've tried: >>> dill.load(open(filename, 'rb')) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "lib/python3.4/site-packages/dill/dill.py", line 288, in load obj = pik.load() EOFError: Ran out of input >>> The file is not empty: >>> os.stat(filename).st_size 31110059

Symptoms of EEPROM damage

给你一囗甜甜゛ 提交于 2019-11-30 07:59:34
Suppose there is a bug in a Java Card applet: a temporary byte array is stored in EEPROM instead of RAM. Moreover, suppose this byte array is overwritten with each APDU. This bug should damage the card sooner or later. What symptoms could we expect? Incorrect values in the array without any explicit warnings or errors? Some exceptions thrown when accessing this array? The applet unselectable? The whole card completely unresponsive? Should the card be damaged "once and forever", or will these failures occur more and more often? In my experiment (J2E145) there was the first failure after 5 000

What could be causing this corruption in .docx files during httpwebrequest?

旧街凉风 提交于 2019-11-29 23:46:06
问题 I am using httpwebrequest to post a file with some additional form data from an MVC app to a classic ASP site. If the file is a .docx, it always arrives as corrupted. Others seem to open fine, but it could be that their formats are more flexible. When I open the original and corrupted files in Sublime Text, I noticed that the corrupted file is missing a block of 0000 at the end. When I manually replace this block the file opens fine. Is there something I'm doing incorrectly in my .NET code

Why am I getting the error: “Not a JPEG file: starts with 0x89 0x50”

杀马特。学长 韩版系。学妹 提交于 2019-11-29 20:07:02
Why am I getting the message "Not a JPEG file: starts with 0x89 0x50" when I try to open my jpg file? The file is actually a PNG with the wrong file extension. "0x89 0x50" is how a PNG file starts. Your file is not a JPEG file, it's just been renamed from a PNG to a JPEG somewhere along the way. Some programs will open this as a recognised file extension and infer the type from the prefix, but obviously not the one you're using. simply rename *.jpg to *.png. Or open this file in browser Here's a quick pass to check real type of the file on Unix-like platform: using the "file" command, like:

double free or corruption 3d array in C

蓝咒 提交于 2019-11-29 17:26:02
I get a 'double free or corruption' error while freeing up an 3d array. Can anyone please tell me where is the problem in the code? The size of the array is 2*N*N. Value of N here is 100. Even without casting, same result. Here is the code: // Mallocing double ***h = malloc(2 * (sizeof(double**))); for(i = 0; i < N; i++) { h[i] = malloc(N * sizeof(double*)); for(j = 0; j < N; j++) { h[i][j] = malloc(N * sizeof(double)); } } // Freeing for(i = 0; i < N; i++) { for(j = 0; j < N; j++) { free(h[i][j]); } free(h[i]); } free(h); The program works fine but at the end I get an error 'double free or

How can I recover a corrupted, partially pickled file?

倖福魔咒の 提交于 2019-11-29 17:08:58
My program was killed while serializing data (a dict ) to disk with dill . I cannot open the partially-written file now. Is it possible to partially or fully recover the data? If so, how? Here's what I've tried: >>> dill.load(open(filename, 'rb')) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "lib/python3.4/site-packages/dill/dill.py", line 288, in load obj = pik.load() EOFError: Ran out of input >>> The file is not empty: >>> os.stat(filename).st_size 31110059 Note: all data in the dictionary was comprised of python built-in types. The pure-Python version of

How to obtain a correct dump using mysqldump and single-transaction when DDL is used at the same time?

China☆狼群 提交于 2019-11-29 14:50:39
问题 I'm new to MySQL and I'm figuring out the best way to perform an on-line hot logical backup using mysqldump . This page suggests this command line: mysqldump --single-transaction --flush-logs --master-data=2 --all-databases > backup_sunday_1_PM.sql but... if you read the documentation carefully you find that: While a --single-transaction dump is in process, to ensure a valid dump file (correct table contents and binary log position), no other connection should use the following statements:

How to fix possible db corruption?

守給你的承諾、 提交于 2019-11-29 14:44:53
I'm at a client doing some quick fixes to their access application. It was a while I had a go with access, but I'm recovering quickly. However, I've discovered an interesting problem: For some reports, I get a "Record is deleted" error. I've checked the reports, and it seems like there's a problem with one table. When opening that table, I find a record where all columns are marked "#deleted". So obviously, this row seems to be the culprit. However, when I try to delete that row, nothing really happens. If I re-open the table, the row still exists. Is there a corruption in the db? How can I

Assistance with openssl blowfish simple example inserting garbage characters

心已入冬 提交于 2019-11-29 00:38:07
If you have a good example of simply encrypting a file using openssl that is better than this one that I am having issues with I would be very grateful. Update: Myabe the author was correct. Using memset on something I did not allocate reminds me of strtok choking on non-stack variables. Update2: Got the core dump to stop by using malloc. Updated the code. The control Hs are still appearing. Updating the code to reflect this. Update3: The looping structure does not appear correct in the example. I am unsure how subsequent reads are occuring greater than the size of the initial read. Update4: I