1 files changed, 71 insertions, 0 deletions
diff --git a/lib/libutil/kinfo_getproc.c b/lib/libutil/kinfo_getproc.c
new file mode 100644
index 0000000..2ae6b57
--- /dev/null
+++ b/lib/libutil/kinfo_getproc.c
@@ -0,0 +1,71 @@
+/*-
+ * 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"
+
+struct kinfo_proc *
+kinfo_getproc(pid_t pid)
+{
+	struct kinfo_proc *kipp;
+	int mib[4];
+	size_t len;
+
+	len = 0;
+	mib[0] = CTL_KERN;
+	mib[1] = KERN_PROC;
+	mib[2] = KERN_PROC_PID;
+	mib[3] = pid;
+	if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0)
+		return (NULL);
+
+	kipp = malloc(len);
+	if (kipp == NULL)
+		return (NULL);
+
+	if (sysctl(mib, 4, kipp, &len, NULL, 0) < 0)
+		goto bad;
+	if (len != sizeof(*kipp))
+		goto bad;
+	if (kipp->ki_structsize != sizeof(*kipp))
+		goto bad;
+	if (kipp->ki_pid != pid)
+		goto bad;
+	return (kipp);
+bad:
+	free(kipp);
+	return (NULL);
+}