[src/trunk]: src/lib/libkvm add a function to report the name of the file kvm...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2c61440042bf
branches:  trunk
changeset: 769509:2c61440042bf
user:      christos <christos%NetBSD.org@localhost>
date:      Mon Sep 12 21:11:31 2011 +0000

description:
add a function to report the name of the file kvm_open{,.files} is using.

diffstat:

 lib/libkvm/Makefile      |   3 ++-
 lib/libkvm/kvm.3         |   5 +++--
 lib/libkvm/kvm.c         |  12 ++++++++++--
 lib/libkvm/kvm_open.3    |   5 +++--
 lib/libkvm/kvm_private.h |   3 ++-
 5 files changed, 20 insertions(+), 8 deletions(-)

diffs (127 lines):

diff -r 0d046de040b6 -r 2c61440042bf lib/libkvm/Makefile
--- a/lib/libkvm/Makefile       Mon Sep 12 18:07:29 2011 +0000
+++ b/lib/libkvm/Makefile       Mon Sep 12 21:11:31 2011 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.47 2011/02/14 18:27:24 matt Exp $
+#      $NetBSD: Makefile,v 1.48 2011/09/12 21:11:31 christos Exp $
 #      from: @(#)Makefile      8.1 (Berkeley) 6/4/93
 
 USE_FORT?= yes # used primarily by setgid programs
@@ -39,6 +39,7 @@
 .endif
 
 MAN=   kvm.3 kvm_dump.3 kvm_geterr.3 kvm_getfiles.3 kvm_getloadavg.3 \
+       kvm_getkernelname.3 \
        kvm_getprocs.3 kvm_nlist.3 kvm_open.3 kvm_read.3 kvm_getlwps.3
 
 MLINKS+=kvm_getprocs.3 kvm_getargv.3 kvm_getprocs.3 kvm_getenvv.3
diff -r 0d046de040b6 -r 2c61440042bf lib/libkvm/kvm.3
--- a/lib/libkvm/kvm.3  Mon Sep 12 18:07:29 2011 +0000
+++ b/lib/libkvm/kvm.3  Mon Sep 12 21:11:31 2011 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: kvm.3,v 1.11 2003/08/07 16:44:35 agc Exp $
+.\"    $NetBSD: kvm.3,v 1.12 2011/09/12 21:11:32 christos Exp $
 .\"
 .\" Copyright (c) 1992, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -33,7 +33,7 @@
 .\"
 .\"     @(#)kvm.3      8.1 (Berkeley) 6/4/93
 .\"
-.Dd August 18, 2002
+.Dd September 14, 2011
 .Dt KVM 3
 .Os
 .Sh NAME
@@ -99,6 +99,7 @@
 .Xr kvm_getargv 3 ,
 .Xr kvm_getenvv 3 ,
 .Xr kvm_geterr 3 ,
+.Xr kvm_getkernelname 3 ,
 .Xr kvm_getloadavg 3 ,
 .Xr kvm_getlwps 3 ,
 .Xr kvm_getprocs 3 ,
diff -r 0d046de040b6 -r 2c61440042bf lib/libkvm/kvm.c
--- a/lib/libkvm/kvm.c  Mon Sep 12 18:07:29 2011 +0000
+++ b/lib/libkvm/kvm.c  Mon Sep 12 21:11:31 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kvm.c,v 1.97 2010/11/26 22:01:53 dholland Exp $        */
+/*     $NetBSD: kvm.c,v 1.98 2011/09/12 21:11:32 christos Exp $        */
 
 /*-
  * Copyright (c) 1989, 1992, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)kvm.c      8.2 (Berkeley) 2/13/94";
 #else
-__RCSID("$NetBSD: kvm.c,v 1.97 2010/11/26 22:01:53 dholland Exp $");
+__RCSID("$NetBSD: kvm.c,v 1.98 2011/09/12 21:11:32 christos Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -90,6 +90,12 @@
        return (kd->errbuf);
 }
 
+const char *
+kvm_getkernelname(kvm_t *kd)
+{
+       return kd->kernelname;
+}
+
 /*
  * Report an error using printf style arguments.  "program" is kd->program
  * on hard errors, and 0 on soft errors, so that under sun error emulation,
@@ -336,7 +342,9 @@
                        _kvm_syserr(kd, kd->program, "%s", uf);
                        goto failed;
                }
+               strlcpy(kd->kernelname, uf, sizeof(kd->kernelname));
        } else {
+               strlcpy(kd->kernelname, _PATH_KSYMS, sizeof(kd->kernelname));
                /*
                 * We're here because /dev/ksyms was opened
                 * successfully.  However, we don't want to keep it
diff -r 0d046de040b6 -r 2c61440042bf lib/libkvm/kvm_open.3
--- a/lib/libkvm/kvm_open.3     Mon Sep 12 18:07:29 2011 +0000
+++ b/lib/libkvm/kvm_open.3     Mon Sep 12 21:11:31 2011 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: kvm_open.3,v 1.17 2010/03/22 21:55:06 joerg Exp $
+.\"    $NetBSD: kvm_open.3,v 1.18 2011/09/12 21:11:32 christos Exp $
 .\"
 .\" Copyright (c) 1992, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -33,7 +33,7 @@
 .\"
 .\"     @(#)kvm_open.3 8.3 (Berkeley) 4/19/94
 .\"
-.Dd September 14, 2009
+.Dd September 14, 2011
 .Dt KVM_OPEN 3
 .Os
 .Sh NAME
@@ -224,6 +224,7 @@
 .Xr kvm_getargv 3 ,
 .Xr kvm_getenvv 3 ,
 .Xr kvm_geterr 3 ,
+.Xr kvm_getkernelname 3 ,
 .Xr kvm_getprocs 3 ,
 .Xr kvm_nlist 3 ,
 .Xr kvm_read 3 ,
diff -r 0d046de040b6 -r 2c61440042bf lib/libkvm/kvm_private.h
--- a/lib/libkvm/kvm_private.h  Mon Sep 12 18:07:29 2011 +0000
+++ b/lib/libkvm/kvm_private.h  Mon Sep 12 21:11:31 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kvm_private.h,v 1.19 2010/09/26 22:28:05 jym Exp $     */
+/*     $NetBSD: kvm_private.h,v 1.20 2011/09/12 21:11:32 christos Exp $        */
 
 /*-
  * Copyright (c) 1992, 1993
@@ -90,6 +90,7 @@
        size_t fdalign;
        uint8_t *iobuf;
        size_t iobufsz;
+       char kernelname[MAXPATHLEN];
 };
 
 /* Levels of aliveness */