The --resolve-alias option prints all module names that match the
alias given on the commandline and exits. If no valid alias is specified,
it does nothing.
---
 doc/modprobe.sgml |    9 +++++++++
 modprobe.c        |   35 ++++++++++++++++++++++-------------
 2 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/doc/modprobe.sgml b/doc/modprobe.sgml
index fde8ca7..4f8c5ab 100644
--- a/doc/modprobe.sgml
+++ b/doc/modprobe.sgml
@@ -367,6 +367,15 @@
         </listitem>
       </varlistentry>
       <varlistentry>
+        <term><option>--resolve-alias</option>
+        </term>
+        <listitem>
+          <para>
+           Resolve all module names matching an alias.
+         </para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
         <term><option>-o</option> <option>--name</option>
         </term>
         <listitem>
diff --git a/modprobe.c b/modprobe.c
index 21a3111..6a0da22 100644
--- a/modprobe.c
+++ b/modprobe.c
@@ -69,7 +69,8 @@ typedef enum
        mit_ignore_commands = 16,
        mit_ignore_loaded = 32,
        mit_strip_vermagic = 64,
-       mit_strip_modversion = 128
+       mit_strip_modversion = 128,
+       mit_resolve_alias = 256
 
 } modprobe_flags_t;
 
@@ -1342,20 +1343,23 @@ int do_modprobe(char *modname,
                if (aliases->next)
                        err = warn;
                while (aliases) {
-                       /* Add the options for this alias. */
-                       char *opts = NOFAIL(strdup(cmdline_opts));
-                       opts = add_extra_options(modname,
-                                                opts, modoptions);
-
-                       read_depends(dirname, aliases->module, &list);
-                       failed |= handle_module(aliases->module,
-                               &list, newname, opts, modoptions,
-                               commands, cmdline_opts, err, flags);
-
+                       if(flags & mit_resolve_alias) {
+                               info("%s\n", aliases->module);
+                       } else {
+                               /* Add the options for this alias. */
+                               char *opts = NOFAIL(strdup(cmdline_opts));
+                               opts = add_extra_options(modname,
+                                                        opts, modoptions);
+
+                               read_depends(dirname, aliases->module, &list);
+                               failed |= handle_module(aliases->module,
+                                       &list, newname, opts, modoptions,
+                                       commands, cmdline_opts, err, flags);
+                               INIT_LIST_HEAD(&list);
+                       }
                        aliases = aliases->next;
-                       INIT_LIST_HEAD(&list);
                }
-       } else {
+       } else if(!(flags & mit_resolve_alias)) {
                if (flags & mit_use_blacklist
                    && find_blacklist(modname, blacklist))
                        return failed;
@@ -1373,6 +1377,7 @@ static struct option options[] = { { "version", 0, NULL, 
'V' },
                                   { "show", 0, NULL, 'n' },
                                   { "dry-run", 0, NULL, 'n' },
                                   { "show-depends", 0, NULL, 'D' },
+                                  { "resolve-alias", 0, NULL, 'R' },
                                   { "dirname", 1, NULL, 'd' },
                                   { "set-version", 1, NULL, 'S' },
                                   { "config", 1, NULL, 'C' },
@@ -1453,6 +1458,10 @@ int main(int argc, char *argv[])
                        flags |= mit_ignore_loaded;
                        verbose = 1;
                        break;
+               case 'R':
+                       flags |= mit_resolve_alias;
+                       verbose = 1;
+                       break;
                case 'o':
                        newname = optarg;
                        break;
-- 
1.6.4.1

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