2007.

[idzebra-moved-to-github.git] / util / res.c

diff --git a/util/res.c b/util/res.c
index 4e26a7a..fda7330 100644 (file)
--- a/util/res.c
+++ b/util/res.c
@@ -1,5 +1,5 @@
-/* $Id: res.c,v 1.47 2005-10-27 08:49:29 adam Exp $
-   Copyright (C) 1995-2005
+/* $Id: res.c,v 1.56 2007-01-15 15:10:26 adam Exp $
+   Copyright (C) 1995-2007
    Index Data ApS
 
 This file is part of the Zebra server.
@@ -15,9 +15,9 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
-along with Zebra; see the file LICENSE.zebra.  If not, write to the
-Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
 */
 
 #include <stdio.h>
@@ -43,11 +43,19 @@ struct res_entry {
 };
 
 struct res_struct {
+    int ref_count;
     struct res_entry *first, *last;
     Res def_res;
     Res over_res;
 };
 
+static Res res_incref(Res r)
+{
+    if (r)
+        r->ref_count++;
+    return r;
+}
+
 static struct res_entry *add_entry(Res r)
 {
     struct res_entry *resp;
@@ -226,13 +234,16 @@ ZEBRA_RES res_read_file(Res r, const char *fname)
     fclose(fr);
     return ZEBRA_OK;
 }
+
 Res res_open(Res def_res, Res over_res)
 {
     Res r;
     r = (Res) xmalloc(sizeof(*r));
+
+    r->ref_count = 1;
     r->first = r->last = NULL;
-    r->def_res = def_res;
-    r->over_res = over_res;
+    r->def_res = res_incref(def_res);
+    r->over_res = res_incref(over_res);
     return r;
 }
 
@@ -253,11 +264,13 @@ void res_clear(Res r)
 
 void res_close(Res r)
 {
-    if (!r)
-        return;
-    res_clear(r);
-
-    xfree(r);
+    if (r && --(r->ref_count) == 0)
+    {
+        res_clear(r);
+        res_close(r->def_res);
+        res_close(r->over_res);
+        xfree(r);
+    }
 }
 
 const char *res_get_prefix(Res r, const char *name, const char *prefix,
@@ -307,7 +320,8 @@ const char *res_get_def(Res r, const char *name, const char *def)
 
     if (!(t = res_get(r, name)))
     {
-       yaz_log(YLOG_DEBUG, "CAUTION: Using default resource %s:%s", name, def);
+       if (def)
+           yaz_log(YLOG_DEBUG, "Using default resource %s:%s", name, def);
        return def;
     }
     else
@@ -330,6 +344,8 @@ void res_set(Res r, const char *name, const char *value)
     struct res_entry *re;
     assert(r);
 
+    if (!value)
+        return;
     for (re = r->first; re; re=re->next)
         if (re->value && !yaz_matchstr(re->name, name))
         {
@@ -379,7 +395,7 @@ ZEBRA_RES res_write_file(Res r, const char *fname)
     if (!fr)
     {
         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Cannot create `%s'", fname);
-        exit(1);
+       return ZEBRA_FAIL;
     }
 
     for (re = r->first; re; re=re->next)
@@ -461,10 +477,10 @@ void res_close_over (Res r)
 void res_add (Res r, const char *name, const char *value)
 {
     struct res_entry *re;
-    assert (r);
-    if ((name) && (value)) 
-       yaz_log (YLOG_RES, "res_add res=%p, name=%s, value=%s", r, name, value);
-    
+    assert(r);
+    assert(name);
+    assert(value);
+    yaz_log (YLOG_RES, "res_add res=%p, name=%s, value=%s", r, name, value);
     re = add_entry (r);
     re->name = xstrdup (name);
     re->value = xstrdup_env (value);
@@ -540,3 +556,77 @@ void res_dump (Res r, int level)
        res_dump (r->over_res, level + 1);
     }
 }
+
+int res_check(Res r_i, Res r_v)
+{
+    struct res_entry *e_i;
+    int errors = 0;
+    
+    for (e_i = r_i->first; e_i; e_i = e_i->next)
+    {
+        struct res_entry *e_v;
+        for (e_v = r_v->first; e_v; e_v = e_v->next)
+        {
+            int prefix_allowed = 0;
+            int suffix_allowed = 0;
+            const char *name = e_i->name;
+            size_t name_len = strlen(e_i->name);
+            char namez[32];
+            const char *first_dot = 0;
+            const char *second_dot = 0;
+
+            if (strchr(e_v->value, 'p'))
+                prefix_allowed = 1;
+            if (strchr(e_v->value, 's'))
+                suffix_allowed = 1;
+            
+            first_dot = strchr(name, '.');
+            if (prefix_allowed && first_dot)
+            {
+                name = first_dot+1;
+                name_len = strlen(name);
+            }
+            second_dot = strchr(name, '.');
+            if (suffix_allowed && second_dot)
+            {
+                name_len = second_dot - name;
+            }
+            if (name_len < sizeof(namez)-1)
+            {
+                memcpy(namez, name, name_len);
+                namez[name_len] = '\0';
+                if (!yaz_matchstr(namez, e_v->name))
+                    break;
+            }
+            /* for case 'a.b' we have to check 'a' as well */
+            if (prefix_allowed && suffix_allowed && first_dot && !second_dot)
+            {
+                name = e_i->name;
+                name_len = first_dot - name;
+                if (name_len < sizeof(namez)-1)
+                {
+                    memcpy(namez, name, name_len);
+                    namez[name_len] = '\0';
+                    if (!yaz_matchstr(namez, e_v->name))
+                        break;
+                }
+            }
+        }
+        if (!e_v)
+        {
+            yaz_log(YLOG_WARN, "The following setting is unrecognized: %s",
+                    e_i->name);
+            errors++;
+        }
+    }
+    return errors;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+