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added random stuff, including checking to make sure we don't fill the disk.

This commit is contained in:
cgd 1993-05-03 03:06:32 +00:00
parent 501ba00c04
commit 17a22f18ea
2 changed files with 64 additions and 11 deletions
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8
usr.sbin/accountant/accountant.8
View File

@ -24,7 +24,7 @@
.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id: accountant.8,v 1.2 1993/05/03 01:45:34 cgd Exp $
.\" $Id: accountant.8,v 1.3 1993/05/03 03:06:32 cgd Exp $
.\"
.Dd May 2, 1993
.Dt ACCOUNTANT 8
@ -35,6 +35,7 @@
.Sh SYNOPSIS
.Nm accountant
.Op Fl d
.Op Fl s
.Op Fl f Ar log file
.Op Fl F Ar accounting device
.Sh DESCRIPTION
@ -56,6 +57,11 @@ to the terminal.
.El
.Pp
.Bl -tag -width Fl
.It Fl s
Sync the accounting log after every write.
.El
.Pp
.Bl -tag -width Fl
.It Fl f Ar log file
Write accounting records to
.Ar log file

67
usr.sbin/accountant/accountant.c
View File

@ -26,15 +26,17 @@
*/
#ifndef LINT
static char *rcsid = "$Id: accountant.c,v 1.1 1993/05/03 01:02:52 cgd Exp $";
static char *rcsid = "$Id: accountant.c,v 1.2 1993/05/03 03:06:33 cgd Exp $";
#endif
#include <sys/types.h>
#include <sys/file.h>
#include <sys/acct.h>
#include <sys/mount.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <syslog.h>
#include "pathnames.h"
@ -42,6 +44,13 @@ char *acctfile = _PATH_ACCTLOG;
char *acctdev = _PATH_ACCTDEV;
int devfd = -1;
int filefd = -1;
int min_on = 2;
int max_off = 4;
int sleeptime = 15;
int debug;
#define dprintf if (debug) printf
#define dperror if (debug) perror
void usage(char *progname)
{
@ -63,12 +72,43 @@ void reinitfiles(int num)
}
}
void checkspace()
{
struct statfs fs;
int freespace = 1;
int slept = 0;
do {
if (fstatfs(filefd, &fs) < 0) {
perror("checkspace");
freespace = 0;
} else {
if (fs.f_bavail < fs.f_blocks / (100 / min_on)) {
freespace = 0;
} else if (fs.f_bavail > fs.f_blocks / (100 / max_off)) {
freespace = 1;
}
}
if (!freespace) {
if (!slept) syslog(LOG_NOTICE, "Accounting suspended");
dprintf("going to sleep...\n");
sleep(sleeptime);
slept = 1;
}
} while (!freespace);
if (slept) {
syslog(LOG_NOTICE, "Accounting resumed");
dprintf("awake and happy...\n");
}
}
main(argc, argv)
int argc;
char **argv;
{
int ch;
int debug = 0;
int dosync = 0;
extern char *optarg;
extern int optind;
FILE *pidf;
@ -78,6 +118,9 @@ main(argc, argv)
case 'd': /* debug it */
debug = 1;
break;
case 's': /* force syncs after writes */
dosync = 1;
break;
case 'f': /* set log file */
acctfile = optarg;
break;
@ -93,10 +136,12 @@ main(argc, argv)
if (argc -= optind)
usage(argv[0]);
openlog("accountant", LOG_PERROR, LOG_DAEMON);
if (!debug)
daemon(0, 0);
if (debug) printf("%s: in debugging mode\n", argv[0]);
dprintf("%s: in debugging mode\n", argv[0]);
signal(SIGHUP, reinitfiles);
reinitfiles(0);
@ -112,22 +157,24 @@ main(argc, argv)
rv = read(devfd, &abuf, sizeof(struct acct));
if (rv == sizeof(struct acct)) {
if (debug)
printf("accounting record copied for: %s\n",
abuf.ac_comm);
checkspace();
dprintf("accounting record copied for: %s\n",
abuf.ac_comm);
rv = write(filefd, &abuf, sizeof(struct acct));
if (rv != sizeof(struct acct)) {
if (rv < 0) {
if (debug) perror("write");
dperror("write");
} else {
if (debug) printf("weird write result: %d\n", rv);
dprintf("weird write result: %d\n", rv);
}
}
if (dosync)
fsync(filefd);
} else {
if (rv < 0) {
if (debug) perror("read");
dperror("read");
} else {
if (debug) printf("weird read result: %d\n", rv);
dprintf("weird read result: %d\n", rv);
}
}
}