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OpenDarwin 7.2.1 - man page for acct (opendarwin section 2)

ACCT(2) 			     BSD System Calls Manual				  ACCT(2)

NAME
     acct -- enable or disable process accounting

SYNOPSIS
     #include <unistd.h>

     int
     acct(const char *file);

DESCRIPTION
     The acct() call enables or disables the collection of system accounting records.  If the
     argument file is a nil pointer, accounting is disabled.  If file is an existing pathname
     (null-terminated), record collection is enabled and for every process initiated which termi-
     nates under normal conditions an accounting record is appended to file.  Abnormal conditions
     of termination are reboots or other fatal system problems.  Records for processes which
     never terminate can not be produced by acct().

     For more information on the record structure used by acct(), see /usr/include/sys/acct.h and
     acct(5).

     This call is permitted only to the super-user.

NOTES
     Accounting is automatically disabled when the file system the accounting file resides on
     runs out of space; it is enabled when space once again becomes available.

RETURN VALUES
     On error -1 is returned.  The file must exist and the call may be exercised only by the
     super-user.

ERRORS
     Acct() will fail if one of the following is true:

     [EPERM]		The caller is not the super-user.

     [ENOTDIR]		A component of the path prefix is not a directory.

     [ENAMETOOLONG]	A component of a pathname exceeded {NAME_MAX} characters, or an entire
			path name exceeded {PATH_MAX} characters.

     [ENOENT]		The named file does not exist.

     [EACCES]		Search permission is denied for a component of the path prefix, or the
			path name is not a regular file.

     [ELOOP]		Too many symbolic links were encountered in translating the pathname.

     [EROFS]		The named file resides on a read-only file system.

     [EFAULT]		File points outside the process's allocated address space.

     [EIO]		An I/O error occurred while reading from or writing to the file system.

SEE ALSO
     acct(5), sa(8)

HISTORY
     An acct() function call appeared in Version 7 AT&T UNIX.

4th Berkeley Distribution		   June 4, 1993 		4th Berkeley Distribution


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