usr.bin/procstat

Add -l flag to display resource limits.

PR:		bin/161257
Reviewed by:	kib
MFC after:	2 weeks

1 files changed, 78 insertions, 0 deletions

diff --git a/usr.bin/procstat/procstat_rlimit.c b/usr.bin/procstat/procstat_rlimit.c
new file mode 100644
index 000000000000..44d8d7964a77
--- /dev/null
+++ b/usr.bin/procstat/procstat_rlimit.c
@@ -0,0 +1,78 @@
+/*-
+ * Copyright (c) 2011 Mikolaj Golub
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/time.h>
+#define _RLIMIT_IDENT
+#include <sys/resourcevar.h>
+#include <sys/sysctl.h>
+#include <sys/user.h>
+
+#include <err.h>
+#include <errno.h>
+#include <libprocstat.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "procstat.h"
+
+static struct rlimit rlimit[RLIM_NLIMITS];
+
+void
+procstat_rlimit(struct kinfo_proc *kipp)
+{
+	int error, i, name[4];
+	size_t len;
+
+	if (!hflag)
+		printf("%5s %-16s %-10s %12s %12s\n", "PID", "COMM", "RLIMIT",
+		    "CURRENT", "MAX");
+	name[0] = CTL_KERN;
+	name[1] = KERN_PROC;
+	name[2] = KERN_PROC_RLIMIT;
+	name[3] = kipp->ki_pid;
+	len = sizeof(rlimit);
+	error = sysctl(name, 4, rlimit, &len, NULL, 0);
+	if (error < 0 && errno != ESRCH) {
+		warn("sysctl: kern.proc.rlimit: %d", kipp->ki_pid);
+		return;
+	}
+	if (error < 0 || len != sizeof(rlimit))
+		return;
+
+	for (i = 0; i < RLIM_NLIMITS; i++) {
+		printf("%5d %-16s %-10s %12jd %12jd\n", kipp->ki_pid,
+		    kipp->ki_comm, rlimit_ident[i],
+		    rlimit[i].rlim_cur == RLIM_INFINITY ?
+		    -1 : rlimit[i].rlim_cur,
+		    rlimit[i].rlim_max == RLIM_INFINITY ?
+		    -1 : rlimit[i].rlim_max);
+        }
+}