Steve Edwards
2016-Oct-17 21:38 UTC
[asterisk-users] Multiple readfile oddities, newlines etc
On Tue, 18 Oct 2016, Pete Mundy wrote:> If you want to know what is _really_ in that file (including all > invisible characters and anything else that wc etc might not count), > pipe it through 'hexdump'. > > cat?/home/test/feature-1.txt | hexdumpOr just: hexdump /home/test/feature-1.txt -- Thanks in advance, ------------------------------------------------------------------------- Steve Edwards sedwards at sedwards.com Voice: +1-760-468-3867 PST https://www.linkedin.com/in/steve-edwards-4244281
Pete Mundy
2016-Oct-17 22:12 UTC
[asterisk-users] Multiple readfile oddities, newlines etc
On 18/10/2016, at 10:38 am, Steve Edwards <asterisk.org at sedwards.com> wrote:>> cat /home/test/feature-1.txt | hexdump > > Or just: > > hexdump /home/test/feature-1.txtHeh.. yes, fair call ;) Pete -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20161018/24f1ed87/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3577 bytes Desc: not available URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20161018/24f1ed87/attachment.bin>
Jonathan H
2016-Oct-18 11:41 UTC
[asterisk-users] Multiple readfile oddities, newlines etc
I'm going to go ahead and file a bug report, 'cos something definitely
ain't right here! Bug filed:
https://issues.asterisk.org/jira/browse/ASTERISK-26481
This bit of dialplan.....
exten => 5,1,Verbose(Context: ${CONTEXT} Exten:${EXTEN})
same => n,Set(featurefile=/home/test/feature-1.txt)
same =>
n,set(myList=1,12,123,1234,12345,123456,A,AB,ABC,ABCD,ABCDE,ABC123)
same => n,While($["${SET(rawVar=${SHIFT(myList)})}" !=
""])
same => n,SET(FILE(${featurefile})=${rawVar})
same => n,SET(fileVar=${FILE(${featurefile},0,1,l,u)})
same => n,SET(hexDump=${SHELL(hd ${featurefile})})
same => n,Verbose(Before file: ---${rawVar}--- len ${LEN(rawVar)}
after file: ---${fileVar}--- len ${LEN(fileVar)} hexdump:${hexDump})
same => n,EndWhile()
same => n,Hangup()
...produces this output: (tidied only for posting) - this is messed up
in so many ways.
LEN is showing the wrong length.
1 character gets a weird character added.
23, and 4 characters OK
5 characters loses a character - BUT LOOK! Even though hexdump prints
the correct contents and length, have a close look at this: 35|12345|
whereas normally it would have a space before the pipe.
6 characters is OK
Before file: ---1--- len 6 after file: ---1?--- len 7 hexdump:00000000
31|1| 00000001
Before file: ---12--- len 6 after file: ---12--- len 7
hexdump:00000000 31 32 |12| 00000002
Before file: ---123--- len 6 after file: ---123--- len 7
hexdump:00000000 31 32 33 |123| 00000003
[Oct 18 12:23:53] ERROR[8584][C-0000001a]: json.c:704 ast_json_vpack:
Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[Oct 18 12:23:53] ERROR[8584][C-0000001a]: stasis_channels.c:773
ast_channel_publish_varset: Error creating message
Before file: ---1234--- len 6 after file: ---1234--- len 7
hexdump:00000000 31 32 33 34 |1234| 00000004
Before file: ---12345--- len 6 after file: ---1234--- len 7
hexdump:00000000 31 32 33 34 35|12345| 00000005
Before file: ---123456--- len 6 after file: ---123456--- len 7
hexdump:00000000 31 32 33 34 35 36 |123456| 00000006
[Oct 18 12:23:53] ERROR[8584][C-0000001a]: json.c:704 ast_json_vpack:
Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[Oct 18 12:23:53] ERROR[8584][C-0000001a]: stasis_channels.c:773
ast_channel_publish_varset: Error creating message
Before file: ---A--- len 6 after file: ---A?--- len 7 hexdump:00000000
41|A| 00000001
Before file: ---AB--- len 6 after file: ---AB--- len 7
hexdump:00000000 41 42 |AB| 00000002
Before file: ---ABC--- len 6 after file: ---ABC--- len 7
hexdump:00000000 41 42 43 |ABC| 00000003
[Oct 18 12:23:53] ERROR[8584][C-0000001a]: json.c:704 ast_json_vpack:
Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[Oct 18 12:23:53] ERROR[8584][C-0000001a]: stasis_channels.c:773
ast_channel_publish_varset: Error creating message
Before file: ---ABCD--- len 6 after file: ---ABCD--- len 7
hexdump:00000000 41 42 43 44 |ABCD| 00000004
Before file: ---ABCDE--- len 6 after file: ---ABCD--- len 7
hexdump:00000000 41 42 43 44 45|ABCDE| 00000005
Before file: ---ABC123--- len 6 after file: ---ABC123--- len 7
hexdump:00000000 41 42 43 31 32 33 |ABC123|
On 17 October 2016 at 23:12, Pete Mundy <pete at fiberphone.co.nz>
wrote:> On 18/10/2016, at 10:38 am, Steve Edwards <asterisk.org at
sedwards.com> wrote:
>
> cat /home/test/feature-1.txt | hexdump
>
>
> Or just:
>
> hexdump /home/test/feature-1.txt
>
>
> Heh.. yes, fair call ;)
>
> Pete
>
>
> --
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