# Net::FTP.new silently failing in block form **URL:** \ **Category:** Ruby\ **Created:** [October 10, 2006, 4:37pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659 "2006-10-10T16:37:20Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\ **Post date:** [October 10, 2006, 4:37pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659/1 "2006-10-10T16:37:20Z")
Hi all, Ruby 1.8.5 I’m hitting some odd behavior with Net::FTP.new. I’m connecting to a Win2k3 server (running IIS 6, if that matters). The directory style is set to “UNIX”, and the ftp server is in passive mode. I’m trying to “put” a simple text file. When I use the block form of FTP.new nothing happens. No error, but the text file is not ftp’d to the remote machine. When I use the non-block form, everything works fine. Sampe script: # This fails require “net/ftp” include Net file = “test.txt” FTP.new(host){ |ftp| ftp.passive = true ftp.login(user, pass) ftp.chdir(dir) ftp.put(file) } However, this snippet works just fine: ftp = FTP.new(host) ftp.passive = true ftp.login(user, pass) ftp.chdir(dir) ftp.put(file) ftp.close Note that the “ftp.passive = true” had no effect one way or another. Looking at the source code for Net::FTP revealed nothing out of the ordinary. I ran the same script from both a Linux machine and a Windows XP box and got the same behavior, so I don’t think it’s a line ending issue. Has anyone seen this before? Thanks, Dan ---
**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\ **Post date:** [October 10, 2006, 4:39pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659/2 "2006-10-10T16:39:21Z")
> > > > > “D” == Daniel B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: D\> FTP.new(host){ |ftp| ^^^ open D\> ftp.passive = true Guy Decoux ---
**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\ **Post date:** [October 10, 2006, 4:51pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659/3 "2006-10-10T16:51:25Z")
ts wrote: > > > > > > “D” == Daniel B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: > > D\> FTP.new(host){ |ftp| > ^^^ > open > > D\> ftp.passive = true You’re right, that does work. But, based on the source, why would that make a difference? I mean, FTP.open just calls FTP.new internally, right? The only difference seems to be that FTP.open requires a host name. Oh, well. I’ll just use FTP.open from now on. 🙂 Regards, Dan ---
**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\ **Post date:** [October 10, 2006, 4:53pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659/4 "2006-10-10T16:53:25Z")
> > > > > “D” == Daniel B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: D\> You’re right, that does work. But, based on the source, why would that D\> make a difference? I mean, FTP.open just calls FTP.new internally, D\> right? The only difference seems to be that FTP.open requires a host D\> name. We don’t have the same source ``` def FTP.open(host, user = nil, passwd = nil, acct = nil) if block_given? ``` # ^^^^^^^^^^^^ ``` ftp = new(host, user, passwd, acct) begin yield ftp ``` # ^^^^^^^^^ ``` ensure ftp.close end else new(host, user, passwd, acct) end end ``` Guy Decoux ---
**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\ **Post date:** [October 10, 2006, 4:51pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659/5 "2006-10-10T16:51:25Z")
Daniel B. wrote: > the remote machine. When I use the non-block form, everything works > FTP.new(host){ |ftp| > ftp.login(user, pass) > ftp.chdir(dir) > ftp.put(file) > ftp.close > > Note that the “ftp.passive = true” had no effect one way or another. > Looking at the source code for Net::FTP revealed nothing out of the > ordinary. I ran the same script from both a Linux machine and a > Windows XP box and got the same behavior, so I don’t think it’s a line > ending issue. I looked at [ruby-doc.org](http://ruby-doc.org) and it looks like new does not take an optional block whereas open does. Jamey Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not the intended recipient(s), you are hereby notified that any dissemination, unauthorized review, use, disclosure or distribution of this email and any materials contained in any attachments is prohibited. If you receive this message in error, or are not the intended recipient(s), please immediately notify the sender by email and destroy all copies of the original message, including attachments. ---
**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\ **Post date:** [October 10, 2006, 4:57pm UTC](https://www.ruby-forum.com/t/net-ftp-new-silently-failing-in-block-form/71659/6 "2006-10-10T16:57:26Z")
Jamey C. wrote: > > FTP.new nothing happens. No error, but the text file is not ftp’d to > > > > ftp.passive = true > > I looked at [ruby-doc.org](http://ruby-doc.org) and it looks like new does not take an optional > block whereas open does. > > Jamey Oh, you’re right! /me slaps self. Thanks Jamey and Guy. - Dan