We're getting a return code of 127 from a failed attempt to run PRO-IV - anyone know what this might mean? Or any of the other return codes for that matter?
Cheers
Dan Shannon
Click the link below to see the new game I'm developing!
2 replies to this topic
#2
Richard Bassett
-
- Members
-
- 707 posts
ProIV Guru
- Gender:Not Telling
- Location:Rural France
Posted 09 October 2003 - 02:04 PM
Hi Dan,
[C-speak]
ISTR the 127 value is encountered when a system() call fails because the shell (/bin/sh or otherwise I don't know) cannot be invoked successfully.
(A system() call takes a shell command so a shell executable is involved).
In that case, you're talking about a failure that occurs before you've even got as far as invoking ProIV..
AFAIAA, 127 is not a valid Unix/C "errno" value for any other purpose, probably not anyway..
[\C-speak]
I'm not sure if ProIV itself ever uses exit() with specific "abnormal" exit values, I've certainly never seen any such values documented.
IMPORTANT: What context are you invoking ProIV in (ie. where from, what userid etc..) ?
There should be relevant stuff in the man pages (Linux here):
man 3 system
man 2 execve
.. although it's probably pretty indigestable
FYI:
On my Linux, Unix/C errno values are defined in /usr/include/asm/errno.h
On some others ISTR they were in /usr/include/sys/errno.h
Otherwise you probably have to have to try and follow the #includes from /usr/include/errno.h
[C-speak]
ISTR the 127 value is encountered when a system() call fails because the shell (/bin/sh or otherwise I don't know) cannot be invoked successfully.
(A system() call takes a shell command so a shell executable is involved).
In that case, you're talking about a failure that occurs before you've even got as far as invoking ProIV..
AFAIAA, 127 is not a valid Unix/C "errno" value for any other purpose, probably not anyway..
[\C-speak]
I'm not sure if ProIV itself ever uses exit() with specific "abnormal" exit values, I've certainly never seen any such values documented.
IMPORTANT: What context are you invoking ProIV in (ie. where from, what userid etc..) ?
There should be relevant stuff in the man pages (Linux here):
man 3 system
man 2 execve
.. although it's probably pretty indigestable
FYI:
On my Linux, Unix/C errno values are defined in /usr/include/asm/errno.h
On some others ISTR they were in /usr/include/sys/errno.h
Otherwise you probably have to have to try and follow the #includes from /usr/include/errno.h
Nothing's as simple as you think
Reply to this topic
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
Click the link below to see the new game I'm developing!
