Ok,

Let me describe you again whole scenario.
There is a DD-WRT Wifi- router (having Embedded Linux OS ) having USB
Storage, and we can configure router to act as a server, and can access
files using FTP & SFTP.
Problem occurs when while router is ON, and we remove pen drive
then physicaly it is removed but I think path still remains there, correct
me if I am worng.
In that case curl is not working.

Let consider another scenario, when there is no USB storage plugged in
Router, and then I switch ON Router. In this case curl doesn't find file
and gives proper error.

So, is there any work around for first scenario, also why TIME OUT is not
working in the first scenario ?

I have already compiled latest version of curl & libssh, if some one having
very good experince on Linux, he can better understand that what happens
when we removed usb storage by pulling it out from linux machine.

On Mon, Apr 23, 2012 at 4:47 PM, Yuvi yuvi <testandroidos51_at_gmail.com>wrote:

> Hi,
>
> Following is the log taken using curl binary file :
>
> root_at_dm37x-evm:/# ./curl -u root:LinuxDev_ -v -O sftp://
> 192.168.10.1/mnt/package.QuipC
>
> * About to connect() to 192.168.10.1 port 22 (#0)
>
> * Trying 192.168.10.1...
>
> % Total % Received % Xferd Average Speed Time Time Time
> Current
>
> Dload Upload Total Spent Left
> Speed
>
> 0 0 0 0 0 0 0 0 --:--:-- --:--:--
> --:--:-- 0* connected
>
> * Connected to 192.168.10.1 (192.168.10.1) port 22 (#0)
>
> * SFTP 0x2d2888 state change from SSH_STOP to SSH_INIT
>
> * SFTP 0x2d2888 state change from SSH_INIT to SSH_S_STARTUP
>
> 0 0 0 0 0 0 0 0 --:--:-- --:--:--
> --:--:-- 0* SFTP 0x2d2888 state change from SSH_S_STARTUP to SSH_HOSTKEY
>
> * SSH MD5 fingerprint: 0c7d6453b72e8862637a2abcf76ccf95
>
> * SSH host check: 0, key:
> AAAAB3NzaC1yc2EAAAADAQABAAAAgwDNhToi7hEZP5Fm3LKaAxyBx75GCYUeuU4iX9B+yvj+cBUxw0lV8CD+XR77jPWpgMbJPnk0ROJmch4zwj7E98q0VwukPUxFbTL6dC4W7DC3hzqlRPMlIsfiNMdt7bJ6zk14RKL25yKeiPYE6TbCJF8niWkaPIRW52j7LoSbX/zmFEyb
>
> * SFTP 0x2d2888 state change from SSH_HOSTKEY to SSH_AUTHLIST
>
> * SSH authentication methods available: publickey,password
>
> * SFTP 0x2d2888 state change from SSH_AUTHLIST to SSH_AUTH_PKEY_INIT
>
> * Using ssh public key file /home/root/.ssh/id_dsa.pub
>
> * Using ssh private key file /home/root/.ssh/id_dsa
>
> * SFTP 0x2d2888 state change from SSH_AUTH_PKEY_INIT to SSH_AUTH_PKEY
>
> * SSH public key authentication failed: Unable to open public key file
>
> * SFTP 0x2d2888 state change from SSH_AUTH_PKEY to SSH_AUTH_PASS_INIT
>
> * SFTP 0x2d2888 state change from SSH_AUTH_PASS_INIT to SSH_AUTH_PASS
>
> * Initialized password authentication
>
> * SFTP 0x2d2888 state change from SSH_AUTH_PASS to SSH_AUTH_DONE
>
> * Authentication complete
> 0 0 0 0 0 0 0 0 --:--:-- 0:01:39
> --:--:-- 0
>
>
> After this " 0 0 0 0 0 0 0 0 --:--:--
> 0:01:39 --:--:-- 0"
> nothing happens I have to manually abort execution using Ctrl + c, and
> even no core dump is generated.
> Please let me know if there is any work around for this situation.
>
>
>
> On Wed, Apr 18, 2012 at 1:42 PM, Yuvi yuvi <testandroidos51_at_gmail.com>wrote:
>
>> Hi,
>>
>> Yes the program goes into the infinite loop, Following is the log, which
>> I have taken using *strace* command, core dump is not able to show
>> anything.
>> I think there is an internal retry counter, can we set that counter value
>> by anyhow? please suggest me any solution.
>>
>> open("/dev/urandom", O_RDONLY|O_NONBLOCK|O_NOCTTY) = 4
>>
>> fstat64(4, {st_mode=S_IFCHR|0666, st_rdev=makedev(1, 9), ...}) = 0
>>
>> poll([{fd=4, events=POLLIN, revents=POLLIN}], 1, 10) = 1
>>
>> read(4, "n9\314l\270+\3066\33\366T\3657\262\322<\231\373\\\22\177"...,
>> 32) = 32
>>
>> close(4) = 0
>>
>> getuid32() = 0
>>
>> gettimeofday({1301020875, 599243}, NULL) = 0
>>
>> SYS_289(0x3, 0x293aa8, 0x288, 0x4000, 0x28f950) = 648
>>
>> gettimeofday({1301020875, 600494}, NULL) = 0
>>
>> SYS_291(0x3, 0x28fa80, 0x4000, 0x4000, 0x28f950) = 416
>>
>> gettimeofday({1301020875, 600799}, NULL) = 0
>>
>> SYS_289(0x3, 0x293aa8, 0x90, 0x4000, 0x28f950) = 144
>>
>> gettimeofday({1301020875, 628418}, NULL) = 0
>>
>> SYS_291(0x3, 0x28fa80, 0x4000, 0x4000, 0x28f950) = -1 EAGAIN (Resource
>> temporarily unavailable)
>>
>> timer_delete(0x1) = 0
>>
>> timer_delete(0x1) = 0
>>
>> timer_delete(0x1) = 0
>>
>> timer_delete(0x1) = 0
>>
>> poll([{fd=3, events=POLLIN|POLLPRI, revents=POLLIN}], 1, 1000) = 1
>>
>> gettimeofday({1301020876, 106384}, NULL) = 0
>>
>> SYS_291(0x3, 0x28fa80, 0x4000, 0x4000, 0x28f950) = 464
>>
>> SYS_289(0x3, 0x293aa8, 0x10, 0x4000, 0x28f950) = 16
>>
>> gettimeofday({1301020876, 149292}, NULL) = 0
>>
>> SYS_289(0x3, 0x293aa8, 0x34, 0x4000, 0x28f950) = 52
>>
>> gettimeofday({1301020876, 150085}, NULL) = 0
>> SYS_291(0x3, 0x28fa80, 0x4000, 0x4000, 0x28f950) = -1 EAGAIN (Resource
>> temporarily unavailable)
>>
>>
>>>
>>> > Hi,
>>> >
>>> > I have wifi DD-WRT router that has USB Storage support.
>>> > I have configured that router to support SFTP protocol.
>>> > My problem is that during downloading if somebody removed the USB
>>> storage
>>> > then my sample program to download file goes into the infinite state.
>>>
>>> what is an infinite state? do you mean an infinete loop?
>>>
>>> I suggest you to try to run your program in a linux box. Configure your
>>> shell so as to produce core dumps. then run the program, remove USB storage
>>> to cause infinite loop. Kill your program with ctrl-c. Core will be dumped,
>>> then you are ready to go with launching gdb and telling us what is wrong.
>>> Probably it is nothing but a pourly written router SW.
>>>
>>> If the text above does not mean something to you, I do not know how you
>>> can solve this problem w/o hiring someone to do it for you.
>>>
>>> Thanks
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 3
>>> Date: Mon, 16 Apr 2012 22:47:49 +0200 (CEST)
>>> From: Daniel Stenberg <daniel_at_haxx.se>
>>> To: the curl tool <curl-users_at_cool.haxx.se>
>>> Subject: Re: SFTP : Problem with special character # on target file
>>> Message-ID: <alpine.DEB.2.00.1204162247010.15394_at_tvnag.unkk.fr>
>>> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>>>
>>>
>>>
>>
>>
>

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Received on 2012-04-24