Re: zpty woes

[Jaime Vargas <jev@mac.com>]

Still no luck. Am I missing something stupid?

nerd% ./zpty-test.zsh
+./zpty-test.zsh:4> zmodload zsh/zpty
+./zpty-test.zsh:8> zpty scppty scp hello.world 'user@host:~/'
+./zpty-test.zsh:9> zpty -t scppty
+./zpty-test.zsh:10> zpty -r scppty line assword:

#!/opt/csw/bin/zsh
set -x
zmodload zsh/zpty
die() {print -r -- $1 >&2; exit 1;}
zpty scppty scp hello.world user@host:~/
zpty -t scppty || die "fuck"
zpty -r scppty line "assword:" || die "no password asked"
zpty -w scppty "TopSecret"
while zpty -r scppty line;
     do
         result+="$line"$'\n'
     done
zpty -d scppty
print $result

On May 15, 2008, at 1:03 PM, Stephane Chazelas wrote:

> On Thu, May 15, 2008 at 12:00:25PM -0400, Jaime Vargas wrote:
>> Still doesn't work for me. Below is the modified script and the debug
>> output.
>>
>> #!/opt/csw/bin/zsh
>>
>> set -x
>>
>> zmodload zsh/zpty
>>
>> die() {print -r -- $1 >&2; exit 1;}
>>
>> zpty scppty scp hello.world jvargas@aoma6000-4-9.aoma.rhbss.com:~/
>> zpty -t scppty || die "fuck"
>> zpty -r scppty line "*:" || die "no password asked"
>> zpty -w scppty "3lp&tbw"
>> while zpty -r scppty line;
>>     do
>>         result+="$line"$'\n'
>>     done
>> zpty -d scppty
>> print $result
>>
>> I changed my credentials for security. Basically it now hangs  
>> waitng for
>> password and doesnt' do anything.  -- Jaime
>>
>> nerd% ./zpty-test.zsh
>> +./zpty-test.zsh:5> zmodload zsh/zpty
>> +./zpty-test.zsh:10> zpty scppty scp hello.world 'luser@host:~/'
>> +./zpty-test.zsh:11> zpty -t scppty
>> +./zpty-test.zsh:12> zpty -r scppty line '*:'
>
> Had you printed $line, you'd have seen something like
> "+myscript:", not "Passwd: ".
>
>
> [...]
>> +./zpty-test.zsh:14> zpty -r scppty line
> [...]
>
> As Peter said, if you don't provide with a pattern to look for,
> zpty will look for NL characters.
>
> That last zpty is probably still waiting because so far, it has
> only received "Password: " and is waiting for a NL character
> that will never come.
>
> So, in your code above, you should wait for something more
> specific than just ":":
>
> zpty -r scppty line "assword: " || die "no password asked"
>
> for instance.
>
> -- 
> Stéphane