Re: udev problems

["Michal Čihař" <michal@cihar.com>]

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On Sunday 07 of March 2004 16:28, Michal Èihaø wrote:
> Okay, I found the solution, but not the problem - attached script works. It
> builds name and then echoes complete line, while the previous one echoed it
> by parts.

execute_program in namedev.c doesn't handle correctly situation when it get 
line split into smaller pieces (it should IMHO concatenate it till EOF or 
\n), this leads to setting retval to -1, what is then returned. This doesn't 
happen always, as it depends when pipe buffer is read/written.

Debug log for this case:

match_rule: check PROGRAM
apply_format: format=k, string='/etc/udev/apacer.sh ', tail=' %b %n'
apply_format: substitute kernel name 'sdb'
apply_format: format=b, string='/etc/udev/apacer.sh sdb ', tail=' %n'
apply_format: substitute bus_id '57:0:0:1'
apply_format: format=n, string='/etc/udev/apacer.sh sdb 57:0:0:1 ', tail=''
execute_program: executing '/etc/udev/apacer.sh sdb 57:0:0:1 '
execute_program: execute program '/etc/udev/apacer.sh'
execute_program: result is 'cardreader-'
execute_program: result value already set
execute_program: result value already set
match_rule: PROGRAM returned nozero

- -- 
Regards
	Michal Èihaø
	http://cihar.com
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