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/*-
* Copyright (c) 1998 Andrzej Bialecki
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Small replacement for ps(1) - uses only sysctl(3) to retrieve info
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/stat.h>
#include <sys/proc.h>
#include <sys/user.h>
char p_stat[]="?iRSTZ";
int
main(int argc, char *argv[])
{
int mib[3],i=0,num,len;
struct kinfo_proc kp,*t,*u;
char buf[20],vty[5],pst[5];
int ma,mi;
mib[0]=CTL_KERN;
mib[1]=KERN_PROC;
mib[2]=KERN_PROC_ALL;
if(sysctl(mib,3,NULL,&len,NULL,0)) {
perror("sysctl sizing");
exit(1);
}
t=(struct kinfo_proc *)malloc(len);
if(sysctl(mib,3,t,&len,NULL,0)) {
perror("sysctl info");
exit(1);
}
num=len / sizeof(struct kinfo_proc);
i=0;
printf("USERNAME PID PPID PRI NICE TTY STAT WCHAN COMMAND\n");
while(i<num) {
u=(t+num-i-1);
ma=major(u->kp_eproc.e_tdev);
mi=minor(u->kp_eproc.e_tdev);
switch(ma) {
case 255:
strcpy(vty,"??");
break;
case 12:
if(mi!=255) {
sprintf(vty,"v%d",mi);
break;
}
/* FALLTHROUGH */
case 0:
strcpy(vty,"con");
break;
case 5:
sprintf(vty,"p%d",mi);
break;
}
sprintf(pst,"%c",p_stat[u->kp_proc.p_stat]);
printf("%8s%5d%5d %3d %4d %3s %-4s %-7s (%s)\n",
u->kp_eproc.e_login,
u->kp_proc.p_pid,
u->kp_eproc.e_ppid,
u->kp_proc.p_priority,
u->kp_proc.p_nice,
vty,
pst,
u->kp_eproc.e_wmesg,
u->kp_proc.p_comm);
i++;
}
free(t);
exit(0);
}
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