NAME

acct − execution accounting file

SYNOPSIS

#include <sys/acct.h>

DESCRIPTION

The acct(2) system call makes entries in an accounting file for each process that terminates. The accounting file is a sequence of entries whose layout, as defined by the include file is:

/∗acct.h4.582/10/10 ∗/
 /∗
 ∗ Accounting structures;
 ∗ these use a comp_t type which is a 3 bits base 8
 ∗ exponent, 13 bit fraction “floating point” number.
 ∗/
typedefu_short comp_t;
 structacct
{
charac_comm[10];/∗ Accounting command name ∗/
comp_tac_utime;/∗ Accounting user time ∗/
comp_tac_stime;/∗ Accounting system time ∗/
comp_tac_etime;/∗ Accounting elapsed time ∗/
time_tac_btime;/∗ Beginning time ∗/
shortac_uid;/∗ Accounting user ID ∗/
shortac_gid;/∗ Accounting group ID ∗/
shortac_mem;/∗ average memory usage ∗/
comp_tac_io;/∗ number of disk IO blocks ∗/
dev_tac_tty;/∗ control typewriter ∗/
charac_flag;/∗ Accounting flag ∗/
};
 #defineAFORK0001 /∗ has executed fork, but no exec ∗/
#defineASU0002/∗ used super-user privileges ∗/
#defineACOMPAT0004/∗ used compatibility mode ∗/
#defineACORE0010/∗ dumped core ∗/
#defineAXSIG0020/∗ killed by a signal ∗/
 #defineACCTLO30 /∗ acctg off when space < this ∗/
#defineACCTHI100/∗ acctg resumes at this level ∗/
 #ifdef KERNEL
structacctacctbuf;
structinode∗acctp;
#endif

If the process does an execve(2), the first 10 characters of the filename appear in ac_comm.  The accounting flag contains bits indicating whether execve(2) was ever accomplished, and whether the process ever had super-user privileges.

SEE ALSO

acct(2), execve(2), sa(8)

Sun System Release 0.3  —  30 March January 1983