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/*
* Copyright (c) 2006, William Yodlowsky <bsd@openbsd.rutgers.edu>
* This file is free software; it can be modified and/or
* redistributed under the same terms as Perl itself
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/syslimits.h>
#include <sys/user.h>
#include <ctype.h>
#include <fcntl.h>
#include <kvm.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
void ppt_croak(const char *pat, ...);
/* No need for the procstat structure since we don't use /proc */
/* We need to pass in a cap for ignore, lower for store on object */
/* We can just lc these! */
static char Defaultformat[] = "liiiiiiiiiiiillssss";
/* Mapping of field to type */
static char* Fields[] = {
"ttynum",
"uid",
"gid",
"euid",
"egid",
"pid",
"ppid",
"pgrp",
"sess",
"time",
"utime",
"stime",
"start",
"size",
"rss",
"fname",
"state",
"ttydev",
"cmndline"
};
#define F_LASTFIELD 18
/* Set up simple bounds checking */
#define STRLCPY(num,targ,src) if (strlcpy(targ,src,sizeof(targ)) >= sizeof(targ)) \
ppt_croak("call:%d source string is too big to copy into buffer", num);
#define STRLCAT(num,targ,src) if (strlcat(targ,src,sizeof(targ)) >= sizeof(targ)) \
ppt_croak("call:%d source string is too big to append to buffer", num);
extern void bless_into_proc(char* format, char** fields, ...);
char* OS_initialize() {
return(NULL);
}
void OS_get_table() {
kvm_t *kd;
char errbuf[_POSIX2_LINE_MAX];
struct kinfo_proc *procs;
int count;
int i, argcount;
int ttynum;
long start;
unsigned long vsize;
unsigned long rss;
char *ttydev;
char cmndline[ARG_MAX+1];
char **pargv;
/* for bless_into_proc */
static char format[F_LASTFIELD + 2];
char state[20];
/* open the kvm interface */
if ((kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL) {
ppt_croak("kvm_open: %s", errbuf);
}
/* get processes */
if ((procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(*procs), &count)) == NULL) {
kvm_close(kd);
ppt_croak("kvm_getprocs: %s", kvm_geterr(kd));
}
/* bless_into_proc each process's information */
for (i=0; i < count; i++) {
STRLCPY(1,format,Defaultformat);
/* get ttydev */
ttynum=procs[i].p_tdev;
ttydev=devname(ttynum, S_IFCHR);
if (ttydev == NULL) ttydev = "??";
/* process state */
switch (procs[i].p_stat) {
case SIDL:
STRLCPY(2,state,"IDLE");
break;
case SRUN:
STRLCPY(3,state,"RUN");
break;
case SSLEEP:
STRLCPY(4,state,"SLEEP");
break;
case SSTOP:
STRLCPY(5,state,"STOP");
break;
case SZOMB:
STRLCPY(6,state,"ZOMBIE");
break;
default:
STRLCPY(7,state,"UNKNOWN");
break;
}
vsize = getpagesize() * (procs[i].p_vm_dsize + procs[i].p_vm_ssize + procs[i].p_vm_tsize);
rss = getpagesize() * procs[i].p_vm_rssize;
/* arguments */
cmndline[0] = '\0';
pargv = kvm_getargv(kd, (const struct kinfo_proc *) &(procs[i]), 0);
if (pargv) {
argcount = 0;
while (pargv[argcount] && strlen(cmndline)+strlen(pargv[argcount])+1 <= ARG_MAX) {
STRLCAT(1,cmndline,pargv[argcount]);
if (pargv[argcount+1]) {
STRLCAT(2,cmndline," ");
}
argcount++;
}
}
/* everything else is straightforward, bless the lot */
bless_into_proc( format,
Fields,
ttynum,
procs[i].p_ruid,
procs[i].p_rgid,
procs[i].p_uid,
procs[i].p_gid,
procs[i].p_pid,
procs[i].p_ppid,
procs[i].p__pgid,
procs[i].p_sid,
procs[i].p_rtime_sec,
procs[i].p_uutime_sec,
procs[i].p_ustime_sec,
procs[i].p_ustart_sec,
vsize,
rss,
procs[i].p_comm,
state,
ttydev,
cmndline
);
}
if (kd) {
kvm_close(kd);
}
}
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