dd-wrt and leech in cron job

[dr crs]

Hi alekseyt, at first thanks very much for you work.It s very usefull. I have an issue, I hope that you can help me:

I am using leech with transmission in a dd-wrt router (v24 sp2). If I execute from prompt it works fine, no problems. But I want to add leech to crontab. I did it from dd-wrt web interface. this is the original job:

/30 * * * root CONFIG_DIR="/opt/etc/leech" DOWNLOADS_DIR="/mnt/sda_part3/Torrents" /opt/usr/sbin/leech

This command works fine If you execute It, but in cron It shows Failed: 127

Trying , I modified the job to:

/30 * * * root PATH="/sbin:/opt/bin:/opt/usr/bin:/opt/sbin:/opt/usr/sbin:/bin:/usr/bin:/usr/sbin:/opt/usr/local/bin" CONFIG_DIR="/opt/etc/leech" DOWNLOADS_DIR="/mnt/sda_part3/Torrents" /opt/usr/sbin/leech > /opt/etc/leech/log.txt

I added PATH like root user and a log. Now, it shows FAILED: 16

I could not find this error code, I don't know what it means. Tried to add SHELL and other env vars, but it didnt work

Do you know where can be the problem?

Thanks in advance!

Dr Crs

[Aleksey Tulinov]

Could you also redirect stderr to a log, as in adding "2>&1" to the end of cron job (reference: https://bitbucket.org/alekseyt/leech#markdown-header-it-works-from-command-line-but-doesnt-work-in-cron).

If it doesn't help to diagnose this issue, please consider sharing complete execution log (/opt/etc/leech/log.txt), because i don't completely understand at what step error appears. If you think sharing this log publicly might compromise your privacy, please consider anonymizing it or emailing it to me.

[dr crs]

Thanks Aleksey for your reply I redirected the stderr and this is the error:

curl: can't load library 'libcurl.so.4'

I searched for that library and it is in /opt/usr/lib. I added this directory to the PATH in the cron job, but the error persists. This is the cron job

/30 * * * root PATH="/opt/usr/lib:/sbin:/opt/bin:/opt/usr/bin:/opt/sbin:/opt/usr/sbin:/bin:/usr/bin:/usr/sbin:/opt/usr/local/bin" CONFIG_DIR="/opt/etc/leech" DOWNLOADS_DIR="/mnt/sda_part3/Torrents" /opt/usr/sbin/leech >>/opt/etc/leech/leech.log 2>&1

Thanks! Cristian

[Aleksey Tulinov]

Cristian, i think path to shared library need to be added to LD_LIBRARY_PATH instead, but don't quote me on that. While using OpenWRT i'm using this script: https://forum.openwrt.org/viewtopic.php?pid=108500#p108500

What this script does: basically symlinks all binaries and libraries from external root into root filesystem (ln -sf /opt/usr/lib/libcurl.4.so /usr/lib/), but it does this for entire installed packages. I don't know if there is any alternative available for DD-WRT, but it seems that you have curl installed to something similar to external root (/opt) and its not visible from cron's environment.

You could try to set LD_LIBRARY_PATH or link libcurl manually. Or setup environment for cron in the way similar to your shell (bash? ash?). I suspect that your /root/.profile might set PATH and LD_LIBRARY_PATH and you might try to source /root/.profile && CONFIG_DIR=... in your cron job.

If this doesn't help, then my best bet would be DD-WRT support forum, i'm afraid i don't have enough expertise in DD-WRT to give a specific suggestion.

[dr crs]

Hey Aleksey, I tried setting the LD_LIBRARY_PATH and it is working like a charm! Thanks a lot for all, For your leech and for your time.

Cheers! Cristian

[Aleksey Tulinov]

You are welcome