src/oid_db.c

   1 /*
   2  * Copyright (C) 1995-2007, Index Data ApS
   3  * See the file LICENSE for details.
   4  *
   5  * $Id: oid_db.c,v 1.6 2007-04-18 08:08:02 adam Exp $
   6  */
   7
   8 /**
   9  * \file oid_db.c
  10  * \brief OID Database
  11  */
  12 #if HAVE_CONFIG_H
  13 #include <config.h>
  14 #endif
  15
  16 #include <stdlib.h>
  17 #include <string.h>
  18 #include <ctype.h>
  19
  20 #include <yaz/yaz-util.h>
  21 #include <yaz/odr.h>
  22 #include <yaz/oid_util.h>
  23 #include <yaz/oid_db.h>
  24
  25 struct yaz_oid_db {
  26      struct yaz_oid_entry *entries;
  27      struct yaz_oid_db *next;
  28      int xmalloced;
  29 };
  30
  31 struct yaz_oid_db standard_db_l = {
  32     yaz_oid_standard_entries, 0, 0
  33 };
  34 yaz_oid_db_t standard_db = &standard_db_l;
  35
  36 yaz_oid_db_t yaz_oid_std(void)
  37 {
  38     return standard_db;
  39 }
  40
  41 const int *yaz_string_to_oid(yaz_oid_db_t oid_db,
  42                              int oclass, const char *name)
  43 {
  44     for (; oid_db; oid_db = oid_db->next)
  45     {
  46         struct yaz_oid_entry *e;
  47         if (oclass != CLASS_GENERAL)
  48         {
  49             for (e = oid_db->entries; e->name; e++)
  50             {
  51                 if (!yaz_matchstr(e->name, name) && oclass == e->oclass)
  52                     return e->oid;
  53             }
  54         }
  55         for (e = oid_db->entries; e->name; e++)
  56         {
  57             if (!yaz_matchstr(e->name, name))
  58                 return e->oid;
  59         }
  60     }
  61     return 0;
  62 }
  63
  64 int *yaz_string_to_oid_nmem(yaz_oid_db_t oid_list,
  65                             int oclass, const char *name, NMEM nmem)
  66 {
  67     const int *oid = yaz_string_to_oid(oid_list, oclass, name);
  68     if (oid)
  69         return odr_oiddup_nmem(nmem, oid);
  70     return odr_getoidbystr_nmem(nmem, name);
  71 }
  72
  73 int *yaz_string_to_oid_odr(yaz_oid_db_t oid_list,
  74                            int oclass, const char *name, ODR o)
  75 {
  76     return yaz_string_to_oid_nmem(oid_list, oclass, name, odr_getmem(o));
  77 }
  78
  79 const char *yaz_oid_to_string(yaz_oid_db_t oid_db,
  80                               const int *oid, int *oclass)
  81 {
  82     if (!oid)
  83         return 0;
  84     for (; oid_db; oid_db = oid_db->next)
  85     {
  86         struct yaz_oid_entry *e = oid_db->entries;
  87         for (; e->name; e++)
  88         {
  89             if (!oid_oidcmp(e->oid, oid))
  90             {
  91                 if (oclass)
  92                     *oclass = e->oclass;
  93                 return e->name;
  94             }
  95         }
  96     }
  97     return 0;
  98 }
  99
 100 const char *yaz_oid_to_string_buf(const int *oid, int *oclass, char *buf)
 101 {
 102     const char *p = yaz_oid_to_string(standard_db, oid, oclass);
 103     if (p)
 104         return p;
 105     if (oclass)
 106         *oclass = CLASS_GENERAL;
 107     return oid_oid_to_dotstring(oid, buf);
 108 }
 109
 110 int yaz_oid_is_iso2709(const int *oid)
 111 {
 112     if (oid_oidlen(oid) == 6 && oid[0] == 1 && oid[1] == 2
 113         && oid[2] == 840 && oid[3] == 10003 && oid[4] == 5
 114         && oid[5] <= 29 && oid[5] != 16)
 115         return 1;
 116     return 0;
 117 }
 118
 119 int yaz_oid_add(yaz_oid_db_t oid_db, int oclass, const char *name,
 120                 const int *new_oid)
 121 {
 122     const int *oid = yaz_string_to_oid(oid_db, oclass, name);
 123     if (!oid)
 124     {
 125         struct yaz_oid_entry *ent;
 126         int *alloc_oid;
 127
 128         while (oid_db->next)
 129             oid_db = oid_db->next;
 130         oid_db->next = xmalloc(sizeof(*oid_db->next));
 131         oid_db = oid_db->next;
 132
 133         oid_db->next = 0;
 134         oid_db->xmalloced = 1;
 135         oid_db->entries = ent = xmalloc(2 * sizeof(*ent));
 136
 137         alloc_oid = xmalloc(sizeof(*alloc_oid) * (oid_oidlen(new_oid)+1));
 138         oid_oidcpy(alloc_oid, new_oid);
 139         ent[0].oid = alloc_oid;
 140         ent[0].name = xstrdup(name);
 141         ent[0].oclass = oclass;
 142
 143         ent[1].oid = 0;
 144         ent[1].name = 0;
 145         ent[1].oclass = CLASS_NOP;
 146         return 0;
 147     }
 148     return -1;
 149 }
 150
 151 yaz_oid_db_t yaz_oid_db_new(void)
 152 {
 153     yaz_oid_db_t p = xmalloc(sizeof(*p));
 154     p->entries = 0;
 155     p->next = 0;
 156     p->xmalloced = 1;
 157     return p;
 158 }
 159
 160 void yaz_oid_db_destroy(yaz_oid_db_t oid_db)
 161 {
 162     while (oid_db)
 163     {
 164         yaz_oid_db_t p = oid_db;
 165
 166         oid_db = oid_db->next;
 167         if (p->xmalloced)
 168         {
 169             struct yaz_oid_entry *e = p->entries;
 170             for (; e->name; e++)
 171                 xfree (e->name);
 172             xfree(p->entries);
 173             xfree(p);
 174         }
 175     }
 176 }
 177
 178 void yaz_oid_trav(yaz_oid_db_t oid_db,
 179                   void (*func)(const int *oid,
 180                                int oclass, const char *name,
 181                                void *client_data),
 182                   void *client_data)
 183 {
 184     for (; oid_db; oid_db = oid_db->next)
 185     {
 186         struct yaz_oid_entry *e = oid_db->entries;
 187
 188         for (; e->name; e++)
 189             func(e->oid, e->oclass, e->name, client_data);
 190     }
 191 }
 192
 193 /*
 194  * Local variables:
 195  * c-basic-offset: 4
 196  * indent-tabs-mode: nil
 197  * End:
 198  * vim: shiftwidth=4 tabstop=8 expandtab
 199  */
 200