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+The Object library.
+
+As part of my Crypto library, I found I required a method of identifying various
+objects. These objects normally had 3 different values associated with
+them, a short text name, a long (or lower case) text name, and an
+ASN.1 Object Identifier (which is a sequence of numbers).
+This library contains a static list of objects and functions to lookup
+according to one type and to return the other types.
+
+To use these routines, 'Object.h' needs to be included.
+
+For each supported object, #define entries are defined as follows
+#define SN_Algorithm "Algorithm"
+#define LN_algorithm "algorithm"
+#define NID_algorithm 38
+#define OBJ_algorithm 1L,3L,14L,3L,2L
+
+SN_ stands for short name.
+LN_ stands for either long name or lowercase name.
+NID_ stands for Numeric ID. I each object has a unique NID and this
+ should be used internally to identify objects.
+OBJ_ stands for ASN.1 Object Identifier or ASN1_OBJECT as defined in the
+ ASN1 routines. These values are used in ASN1 encoding.
+
+The following functions are to be used to return pointers into a static
+definition of these types. What this means is "don't try to free() any
+pointers returned from these functions.
+
+ASN1_OBJECT *OBJ_nid2obj(
+int n);
+ Return the ASN1_OBJECT that corresponds to a NID of n.
+
+char *OBJ_nid2ln(
+int n);
+ Return the long/lower case name of the object represented by the
+ NID of n.
+
+char *OBJ_nid2sn(
+int n);
+ Return the short name for the object represented by the NID of n.
+
+ASN1_OBJECT *OBJ_dup(
+ASN1_OBJECT *o);
+ Duplicate and return a new ASN1_OBJECT that is the same as the
+ passed parameter.
+
+int OBJ_obj2nid(
+ASN1_OBJECT *o);
+ Given ASN1_OBJECT o, return the NID that corresponds.
+
+int OBJ_ln2nid(
+char *s);
+ Given the long/lower case name 's', return the NID of the object.
+
+int OBJ_sn2nid(
+char *s);
+ Given the short name 's', return the NID of the object.
+
+char *OBJ_bsearch(
+char *key,
+char *base,
+int num,
+int size,
+int (*cmp)());
+ Since I have come across a few platforms that do not have the
+ bsearch() function, OBJ_bsearch is my version of that function.
+ Feel free to use this function, but you may as well just use the
+ normal system bsearch(3) if it is present. This version also
+ has tolerance of being passed NULL pointers.