lib: Simplify reg/unreg API

The reg/unreg API is simplified to registering and unregistering a
single name with a single IPCP. The functionality associated with
registering names was moved from the IRMd to the irm tool. The
function to list IPCPs was simplified to return all IPCPs in the
system with their basic properties needed for management.

The above changes led to some needed changes in the irm tool and the
management functions that were depending on the previous behaviour of
list_ipcps.

Command line functionality to list IPCPs in the system is also added
to the irm tool.

Some older code was refactored.

Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>

1 files changed, 73 insertions, 2 deletions

diff --git a/src/tools/irm/irm_utils.c b/src/tools/irm/irm_utils.c
index 573eab70..c5ea9246 100644
--- a/src/tools/irm/irm_utils.c
+++ b/src/tools/irm/irm_utils.c
@@ -36,9 +36,48 @@
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+/*
+ * Copyright (c) 1989, 1993, 1994
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Wildcard Match code below is derived from software contributed to Berkeley by
+ * Guido van Rossum.
+ *
+ * Copyright (c) 2011 The FreeBSD Foundation
+ * All rights reserved.
+ * Portions of this software were developed by David Chisnall
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * 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.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ *
+ * wildcard_match is based on the fnmatch function from POSIX.2.
+ * Implementation based on that one from FreeBSD.
+ */
+
+
 #include <string.h>
-#include <stdbool.h>
-#include <stdlib.h>
 
 #include "irm_utils.h"
 
@@ -52,3 +91,35 @@ int matches(const char * cmd,
 
         return memcmp(pattern, cmd, len);
 }
+
+int wildcard_match(const char * pattern,
+                   const char * string)
+{
+        char c;
+
+        /* For loop? Why not Zoidberg? */
+        for (;;) {
+                switch (c = *pattern++) {
+                case '\0':
+                        return (*string == '\0' ? 0 : -1);
+                case '*':
+                        c = *pattern;
+
+                        if (c == '\0')
+                                return 0;
+
+                        /* General case, use recursion. */
+                        while ((c = *string) != '\0') {
+                                if (!wildcard_match(pattern, string))
+                                        return 0;
+                                ++string;
+                        }
+                        return -1;
+                default:
+                        if (c != *string)
+                                return -1;
+                        string++;
+                        break;
+                }
+        }
+}