diff options
| author | Angelos D. Keromytis <angelos@cvs.openbsd.org> | 2001-06-03 04:30:48 +0000 |
|---|---|---|
| committer | Angelos D. Keromytis <angelos@cvs.openbsd.org> | 2001-06-03 04:30:48 +0000 |
| commit | 3db70a1db8ad5735904517eec974cb19ab456bcd (patch) | |
| tree | 438f83e6e837e14a9790b3bbe420806628426101 /bin/ps/ps.c | |
| parent | 983278991baf50b60eb146357a714dbe4f6393e8 (diff) | |
Use sysctl to get process information, if kvm has not been initialized
(which is still not the case).
Diffstat (limited to 'bin/ps/ps.c')
| -rw-r--r-- | bin/ps/ps.c | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/bin/ps/ps.c b/bin/ps/ps.c index ba0161c4bb1..3a50e2836f9 100644 --- a/bin/ps/ps.c +++ b/bin/ps/ps.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ps.c,v 1.19 2001/04/17 21:12:07 millert Exp $ */ +/* $OpenBSD: ps.c,v 1.20 2001/06/03 04:30:47 angelos Exp $ */ /* $NetBSD: ps.c,v 1.15 1995/05/18 20:33:25 mycroft Exp $ */ /*- @@ -44,7 +44,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; #else -static char rcsid[] = "$OpenBSD: ps.c,v 1.19 2001/04/17 21:12:07 millert Exp $"; +static char rcsid[] = "$OpenBSD: ps.c,v 1.20 2001/06/03 04:30:47 angelos Exp $"; #endif #endif /* not lint */ @@ -115,9 +115,10 @@ main(argc, argv) dev_t ttydev; pid_t pid; uid_t uid; - int all, ch, flag, i, fmt, lineno, nentries; + int all, ch, flag, i, fmt, lineno, nentries, mib[4], mibcnt; int prtheader, wflag, kflag, what, xflg; char *nlistf, *memf, *swapf, errbuf[_POSIX2_LINE_MAX]; + size_t size; if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && @@ -305,26 +306,49 @@ main(argc, argv) * get proc list */ if (uid != (uid_t) -1) { - what = KERN_PROC_UID; - flag = uid; + what = mib[2] = KERN_PROC_UID; + flag = mib[3] = uid; + mibcnt = 4; } else if (ttydev != NODEV) { - what = KERN_PROC_TTY; - flag = ttydev; + what = mib[2] = KERN_PROC_TTY; + flag = mib[3] = ttydev; + mibcnt = 4; } else if (pid != -1) { - what = KERN_PROC_PID; - flag = pid; + what = mib[2] = KERN_PROC_PID; + flag = mib[3] = pid; + mibcnt = 4; } else if (kflag) { - what = KERN_PROC_KTHREAD; + what = mib[2] = KERN_PROC_KTHREAD; flag = 0; + mibcnt = 3; } else { - what = KERN_PROC_ALL; + what = mib[2] = KERN_PROC_ALL; flag = 0; + mibcnt = 3; } /* * select procs */ - if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0) - errx(1, "%s", kvm_geterr(kd)); + if (kd != NULL) { + if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0) + errx(1, "%s", kvm_geterr(kd)); + } + else { + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + size = 0; + if (sysctl(mib, mibcnt, NULL, &size, NULL, 0) < 0) + err(1, "could not get kern.proc size"); + size *= 2; + kp = calloc(size, sizeof(char)); + if (kp == NULL) + err(1, + "failed to allocated memory for proc structures"); + if (sysctl(mib, mibcnt, kp, &size, NULL, 0) < 0) + err(1, "could not read kern.proc"); + nentries = size / sizeof(struct kinfo_proc); + } + if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) err(1, NULL); for (i = nentries; --i >= 0; ++kp) { |