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SubjectRe: /proc/sys/kernel/corename
>>>>> "Simon" ==   <> writes:

Simon> Problem values:

Simon> coredumping processes: args,elapsed time
Simon> user owning the coredumping processes: username,groupname,tty

task_struct's mm member, of type mm_struct has the members arg_start
and arg_end, from which you can get the arguments.

task_struct's start_time should help for elaped time, unless you want
the user time and/or system time; for those use the per_cpu_utime[]
and per_cpu_stime[] arrays.

for the username and groupname, you'll have to settle for uid and gid
(uid, euid, suid, fsuid, gid, egid, sgid and fsgid are all in

for the tty, use the struct tty_struct tty member of task_struct. It
looks like tty_name(current->tty,buf) will put the tty's name into the
buffer buf.

Also cf <linux/elfcore.h> and linux/fs/binfmt_elf.c.

From the latter, CT_TO_SECS(current->times.tms_utime) and
CT_TO_USECS(current->times.tms_utime) give the seconds and useconds of
the user time; the same works for stime, cutime and cstime (c for
cumulative, I presume).

Also from there, use copy_from_user to copy (current->mm->arg_end -
current->mm->arg_start) octets from (const char *)
current->mm->arg_start to get at the arguments.

James H. Cloos, Jr. <>
<> E9E9 F828 61A4 6EA9 0F2B 63E7 997A 9F17 ED7D AEA6

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