Add procstat(1), a process inspection utility. This provides both some

of the missing functionality from procfs(4) and new functionality for
monitoring and debugging specific processes.  procstat(1) operates in
the following modes:

  -b  Display binary information for the process.
  -c  Display command line arguments for the process.
  -f  Display file descriptor information for the process.
  -k  Display the stacks of kernel threads in the process.
  -s  Display security credential information for the process.
  -t  Display thread information for the process.
  -v  Display virtual memory mappings for the process.

Further revision and modes are expected.

Testing, ideas, etc:	cognet, sam, Skip Ford <skip at menantico dot com>
			Wesley Shields <wxs at atarininja dot org>

1 files changed, 64 insertions, 0 deletions

diff --git a/usr.bin/procstat/procstat_basic.c b/usr.bin/procstat/procstat_basic.c
new file mode 100644
index 0000000..1fd3277
--- /dev/null
+++ b/usr.bin/procstat/procstat_basic.c
@@ -0,0 +1,64 @@
+/*-
+ * Copyright (c) 2007 Robert N. M. Watson
+ * 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/types.h>
+#include <sys/sysctl.h>
+#include <sys/user.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "procstat.h"
+
+void
+procstat_basic(pid_t pid, struct kinfo_proc *kipp)
+{
+
+	if (!hflag)
+		printf("%5s %5s %5s %5s %5s %3s %-8s %-9s %-13s %-12s\n",
+		    "PID", "PPID", "PGID", "SID", "TSID", "THR", "LOGIN",
+		    "WCHAN", "EMUL", "COMM");
+
+	printf("%5d ", kipp->ki_pid);
+	printf("%5d ", kipp->ki_ppid);
+	printf("%5d ", kipp->ki_pgid);
+	printf("%5d ", kipp->ki_sid);
+	printf("%5d ", kipp->ki_tsid);
+	printf("%3d ", kipp->ki_numthreads);
+	printf("%-8s ", strlen(kipp->ki_login) ? kipp->ki_login : "-");
+	if (kipp->ki_kiflag & KI_LOCKBLOCK) {
+		printf("*%-8s ", strlen(kipp->ki_lockname) ?
+		    kipp->ki_lockname : "-");
+	} else {
+		printf("%-9s ", strlen(kipp->ki_wmesg) ?
+		    kipp->ki_wmesg : "-");
+	}
+	printf("%-13s ", strcmp(kipp->ki_emul, "null") ? kipp->ki_emul : "-");
+	printf("%-12s\n", kipp->ki_comm);
+}