[src/trunk]: src/lib/libutil Add if_media.c, functions for converting media t...

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

details:   https://anonhg.NetBSD.org/src/rev/fff49705d6b0
branches:  trunk
changeset: 571151:fff49705d6b0
user:      dsl <dsl%NetBSD.org@localhost>
date:      Thu Nov 11 20:36:28 2004 +0000

description:
Add if_media.c, functions for converting media to/from strings.
(from ifconfig.c)

diffstat:

 lib/libutil/Makefile   |    3 +-
 lib/libutil/if_media.c |  187 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 189 insertions(+), 1 deletions(-)

diffs (208 lines):

diff -r c89444a1aadd -r fff49705d6b0 lib/libutil/Makefile
--- a/lib/libutil/Makefile      Thu Nov 11 20:34:30 2004 +0000
+++ b/lib/libutil/Makefile      Thu Nov 11 20:36:28 2004 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.43 2003/03/22 12:44:04 jdolecek Exp $
+#      $NetBSD: Makefile,v 1.44 2004/11/11 20:36:28 dsl Exp $
 #      @(#)Makefile    8.1 (Berkeley) 6/4/93
 
 USE_SHLIBDIR=  yes
@@ -10,6 +10,7 @@
 SRCS=  getbootfile.c getlabelsector.c getmaxpartitions.c \
        getmntopts.c getrawpartition.c \
        disklabel_dkcksum.c disklabel_scan.c \
+       if_media.c \
        login.c loginx.c login_cap.c login_tty.c logout.c logoutx.c \
        logwtmp.c logwtmpx.c opendisk.c \
        passwd.c pw_scan.c pidfile.c pidlock.c pty.c secure_path.c \
diff -r c89444a1aadd -r fff49705d6b0 lib/libutil/if_media.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/libutil/if_media.c    Thu Nov 11 20:36:28 2004 +0000
@@ -0,0 +1,187 @@
+/*     $NetBSD: if_media.c,v 1.1 2004/11/11 20:36:28 dsl Exp $ */
+
+/*-
+ * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the NetBSD
+ *     Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: if_media.c,v 1.1 2004/11/11 20:36:28 dsl Exp $");
+#endif 
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <net/if_media.h>
+
+struct ifmedia_description ifm_mode_descriptions[] =
+    IFM_MODE_DESCRIPTIONS;
+
+struct ifmedia_description ifm_type_descriptions[] =
+    IFM_TYPE_DESCRIPTIONS;
+
+struct ifmedia_description ifm_subtype_descriptions[] =
+    IFM_SUBTYPE_DESCRIPTIONS;
+
+struct ifmedia_description ifm_option_descriptions[] =
+    IFM_OPTION_DESCRIPTIONS;
+
+const char *
+get_media_type_string(int mword)
+{
+       struct ifmedia_description *desc;
+
+       for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++) {
+               if (IFM_TYPE(mword) == desc->ifmt_word)
+                       return (desc->ifmt_string);
+       }
+       return "<unknown type>";
+}
+
+const char *
+get_media_subtype_string(int mword)
+{
+       struct ifmedia_description *desc;
+
+       for (desc = ifm_subtype_descriptions; desc->ifmt_string != NULL;
+            desc++) {
+               if (IFM_TYPE_MATCH(desc->ifmt_word, mword) &&
+                   IFM_SUBTYPE(desc->ifmt_word) == IFM_SUBTYPE(mword))
+                       return desc->ifmt_string;
+       }
+       return "<unknown subtype>";
+}
+
+const char *
+get_media_mode_string(int mword)
+{
+       struct ifmedia_description *desc;
+
+       for (desc = ifm_mode_descriptions; desc->ifmt_string != NULL; desc++) {
+               if (IFM_TYPE_MATCH(desc->ifmt_word, mword) &&
+                   IFM_MODE(mword) == IFM_MODE(desc->ifmt_word))
+                       return desc->ifmt_string;
+       }
+       return NULL;
+}
+
+const char *
+get_media_option_string(int *mwordp)
+{
+       struct ifmedia_description *desc;
+       int mword = *mwordp;
+
+       for (desc = ifm_option_descriptions; desc->ifmt_string != NULL;
+            desc++) {
+               if (!IFM_TYPE_MATCH(desc->ifmt_word, mword))
+                       continue;
+               if (mword & IFM_OPTIONS(desc->ifmt_word)) {
+                       *mwordp = mword & ~IFM_OPTIONS(desc->ifmt_word);
+                       return desc->ifmt_string;
+               }
+       }
+
+       /* Historical behaviour is to ignore unknown option bits! */
+       *mwordp = mword & ~IFM_OPTIONS(~0);
+       return NULL;
+}
+
+int
+lookup_media_word(struct ifmedia_description *desc, int type, const char *val)
+{
+
+       for (; desc->ifmt_string != NULL; desc++) {
+               if (IFM_TYPE_MATCH(desc->ifmt_word, type) &&
+                   strcasecmp(desc->ifmt_string, val) == 0)
+                       return (desc->ifmt_word);
+       }
+       return -1;
+}
+
+int
+get_media_mode(int type, const char *val)
+{
+
+       return lookup_media_word(ifm_mode_descriptions, type, val);
+}
+
+int
+get_media_subtype(int type, const char *val)
+{
+
+       return lookup_media_word(ifm_subtype_descriptions, type, val);
+}
+
+int
+get_media_options(int type, const char *val, char **invalid)
+{
+       char *optlist, *str;
+       int option, rval = 0;
+
+       /* We muck with the string, so copy it. */
+       optlist = strdup(val);
+       if (optlist == NULL) {
+               if (invalid != NULL)
+                       *invalid = NULL;
+               return -1;
+       }
+       str = optlist;
+
+       /*
+        * Look up the options in the user-provided comma-separated list.
+        */
+       type = IFM_TYPE(type);
+       for (; (str = strtok(str, ",")) != NULL; str = NULL) {
+               option = lookup_media_word(ifm_option_descriptions, type, str);
+               if (option != -1) {
+                       rval |= IFM_OPTIONS(option);
+                       continue;
+               }
+               rval = -1;
+               if (invalid == NULL)
+                       break;
+               /* Pass invalid option at start of malloced buffer */
+               if (str != optlist)
+                       memmove(optlist, str, strlen(str) + 1);
+               /* Caller should free() or exit() */
+               *invalid = optlist;
+               return rval;
+       }
+
+       free(optlist);
+       return (rval);
+}