1 files changed, 98 insertions, 0 deletions
diff --git a/lib/libutil/kinfo_getallproc.c b/lib/libutil/kinfo_getallproc.c
new file mode 100644
index 0000000..0f43ce2
--- /dev/null
+++ b/lib/libutil/kinfo_getallproc.c
@@ -0,0 +1,98 @@
+/*-
+ * Copyright (c) 2007 Robert N. M. Watson
+ * Copyright (c) 2009 Ulf Lilleengen
+ * 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/user.h>
+#include <sys/sysctl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libutil.h"
+
+
+/*
+ * Sort processes first by pid and then tid.
+ */
+static int
+kinfo_proc_compare(const void *a, const void *b)
+{
+	int i;
+
+	i = ((const struct kinfo_proc *)a)->ki_pid -
+	    ((const struct kinfo_proc *)b)->ki_pid;
+	if (i != 0)
+		return (i);
+	i = ((const struct kinfo_proc *)a)->ki_tid -
+	    ((const struct kinfo_proc *)b)->ki_tid;
+	return (i);
+}
+
+static void
+kinfo_proc_sort(struct kinfo_proc *kipp, int count)
+{
+
+	qsort(kipp, count, sizeof(*kipp), kinfo_proc_compare);
+}
+
+struct kinfo_proc *
+kinfo_getallproc(int *cntp)
+{
+	struct kinfo_proc *kipp;
+	size_t len;
+	int mib[3];
+
+	mib[0] = CTL_KERN;
+	mib[1] = KERN_PROC;
+	mib[2] = KERN_PROC_PROC;
+
+	len = 0;
+	if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0)
+		return (NULL);
+
+	kipp = malloc(len);
+	if (kipp == NULL)
+		return (NULL);
+
+	if (sysctl(mib, 3, kipp, &len, NULL, 0) < 0)
+		goto bad;
+	if (len % sizeof(*kipp) != 0)
+		goto bad;
+	if (kipp->ki_structsize != sizeof(*kipp))
+		goto bad;
+	*cntp = len / sizeof(*kipp);
+	kinfo_proc_sort(kipp, len / sizeof(*kipp));
+	return (kipp);
+bad:
+	*cntp = 0;
+	free(kipp);
+	return (NULL);
+}