Trying to replicate IBM Mainframe SFTP upload with JSch ChannelSftp -

-

i trying use jsch sftp channel upload file ibm mainframe, , directory has "//", mainframe automatically route file needs go.

in sftp command session on ibm mainframe, can this:

sftp myuser@1.2.3.4 connecting 1.2.3.4... myuser@1.2.3.4's password: sftp> pwd remote working directory: /users/home/myuser sftp> cd // sftp> pwd remote working directory: // sftp> put "#12345.abcdef.xxx.xxx" uploading #12345.abcdef.xxx.xxx //#12345.abcdef.xxx.xxx #12345.abcdef.xxx.xxx               100%  403   0.4kb/s 00:00

so created jsch sftp session (version 0.1.5.1) attempt same upload, not work:

jsch jsch = new jsch(); session session = jsch.getsession("myuser", "1.2.3.4"); session.setpassword("mypass"); session.connect(); channel channel = session.openchannel("sftp"); channel.connect();  channelsftp sftp = (channelsftp)channel; log.info(" user home pwd " + sftp.pwd());  //prints /users/home/myuser sftp.cd("//") log.info(" pwd after cd " + sftp.pwd()); //only prints / sftp.put(filename);   //get sftp error, no such file

so cannot // structure through jsch library. there mode or flag needs set sftp session know it's on mainframe?

i have no issue @ doing jsch sftp session /users/home/myuser directory, can't go //

try without calling channelsftp.cd():

channelsftp sftp = (channelsftp)channel; sftp.put("//" + filename);  // put //#12345.abcdef.xxx.xxx

the sftp protocol doesn't have chdir-type operation. @ protocol level, pathnames don't start "/" interpreted relative directory sftp session started. there's no protocol command change starting directory.

sftp clients, including jsch, emulate chdir-like behavior client-side. when call channelsftp.cd(), jsch stores new remote directory locally. when later call put() or get(), , give pathname doesn't start "/", jsch prepends remote directory onto filename , passes altered name remote server.

i think what's happening jsch's chdir emulation being little clever. when call cd("//"), it's collapsing "//" single "/" , storing that. call put() relative pathname, it's prepending single "/" instead of double "//" want.

based on inspecting the jsch source code, looks jsch never alters remote names start "/". if call put("//somefile"), jsch should use name specified as-is.


Comments

Post a Comment

Popular posts from this blog

c++ - Delete matches in OpenCV (Keypoints and descriptors) -

-
i want check scene image against 2 train images. that, detect features , compute descriptors of both training images. before detecting, computing , matching scene image, delete matches of train1 , train2. because these matches won't facilitate matching of scene image train1 , train2. so, match train1 train2 , vector of matches trainidx , queryidx. how can delete these matches in keypoints-vector , descriptor matrix of train1 , train2? best regards, dwi i have done below: std::vector<cv::keypoint> keypoints[2]; cv::mat descriptor[2]; std::vector< cv::dmatch > matches; /* write code generate keypoints, descriptors , matches here... keypoint[0] -> train image 1 keypoints keypoint[1] -> train image 2 keypoints descriptor[0] -> train image 1 descriptors descriptor[1] -> train image 2 descriptors matches -> matched between train image 1 , 2 */ // logic keep unmatched keypoints , corresponding descriptor
Read more

java - Could not locate OpenAL library -

-
i writing game using slick2d library, uses lwjgl. lwjgl version 2.9.3. using netbeans 8. i tried adding sounds game, example music track on main menu. problem is, exception when run game, despite game still compiling , running except sound of course: sat mar 21 01:23:57 edt 2015 error:could not locate openal library. org.lwjgl.lwjglexception: not locate openal library. @ org.lwjgl.openal.al.create(al.java:156) @ org.lwjgl.openal.al.create(al.java:156) @ org.lwjgl.openal.al.create(al.java:102) @ org.lwjgl.openal.al.create(al.java:206) @ org.newdawn.slick.openal.soundstore$1.run(soundstore.java:295) @ java.security.accesscontroller.doprivileged(native method) @ org.newdawn.slick.openal.soundstore.init(soundstore.java:292) @ org.newdawn.slick.music.<init>(music.java:156) @ org.newdawn.slick.music.<init>(music.java:75) @ view.mainmenu.init(mainmenu.java:58) i didn't include rest of error states error happens in game code. the
Read more

sorting - opencl Bitonic sort with 64 bits keys -

-
i used nvidia sdk bitonic sort , works great me. 32 bits (uint) need ulong keys. have typically 2^14 keys @ time , power of 2. searched on not find kernel designed ulong. i tried modified nvidia sdk bitonic sort using ulong keys not work. kernel not crash after de call clenqueuendrangekernel got error : cl_invalid_command_queue can tell me how modify bitonic sort or radixsort, or can sort ulong keys? i running nvidia quadro 4000 opencl 1.1 cuda 6.5.20 full_profile used original nvidia sdk bitonicsort.cl i used"ulong" keys , value input , ouput instead of "uint" thanks helping i made work-around suit need. used 30 bits of key , 18 high bits of value sorting. changed comparators (2 lines): '#define mask 0xffffc000 // suit need from this: if( (*keya > *keyb) == dir ) this: if(((*keya > *keyb)||((*keya == *keyb)&&((*vala & mask)> (*valb & mask)))) == dir ) it works fine. but, still, it's work-a
Read more