Yes,

DD-WRT router act as a FTP or SFTP server, whose storage media is USB
storage.

On Tue, Apr 24, 2012 at 11:56 PM, Yuvi yuvi <testandroidos51_at_gmail.com>wrote:

> 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