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, 57 insertions, 0 deletions

diff --git a/usr.bin/procstat/procstat_cred.c b/usr.bin/procstat/procstat_cred.c
new file mode 100644
index 0000000..a1fc89b
--- /dev/null
+++ b/usr.bin/procstat/procstat_cred.c
@@ -0,0 +1,57 @@
+/*-
+ * 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 "procstat.h"
+
+void
+procstat_cred(pid_t pid, struct kinfo_proc *kipp)
+{
+	int i;
+
+	if (!hflag)
+		printf("%5s %5s %5s %5s %5s %5s %5s %-20s\n", "PID", "EUID",
+		    "RUID", "SVUID", "EGID", "RGID", "SVGID", "GROUPS");
+
+	printf("%5d ", pid);
+	printf("%5d ", kipp->ki_uid);
+	printf("%5d ", kipp->ki_ruid);
+	printf("%5d ", kipp->ki_svuid);
+	printf("%5d ", kipp->ki_groups[0]);
+	printf("%5d ", kipp->ki_rgid);
+	printf("%5d ", kipp->ki_svgid);
+	for (i = 0; i < kipp->ki_ngroups; i++)
+		printf("%s%d", (i > 0) ? "," : "", kipp->ki_groups[i]);
+	printf("\n");
+}