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authorcvs2svn <admin@example.com>2000-10-25 15:23:16 +0000
committercvs2svn <admin@example.com>2000-10-25 15:23:16 +0000
commitf7f03a2c738fa3cb523a5e509685f72fd0879bb2 (patch)
tree1ced1775de07c13c2a5a1d9e3bde843578ac541d /src/lib/libcrypto/objects/o_names.c
parent463e714935b9651a5eb2c08fcf3f8844fc6b653d (diff)
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Diffstat (limited to 'src/lib/libcrypto/objects/o_names.c')
-rw-r--r--src/lib/libcrypto/objects/o_names.c265
1 files changed, 0 insertions, 265 deletions
diff --git a/src/lib/libcrypto/objects/o_names.c b/src/lib/libcrypto/objects/o_names.c
deleted file mode 100644
index d9389a5e5a..0000000000
--- a/src/lib/libcrypto/objects/o_names.c
+++ /dev/null
@@ -1,265 +0,0 @@
1#include <stdio.h>
2#include <stdlib.h>
3#include <string.h>
4
5#include <openssl/lhash.h>
6#include <openssl/objects.h>
7#include <openssl/safestack.h>
8
9/* I use the ex_data stuff to manage the identifiers for the obj_name_types
10 * that applications may define. I only really use the free function field.
11 */
12static LHASH *names_lh=NULL;
13static int names_type_num=OBJ_NAME_TYPE_NUM;
14
15typedef struct name_funcs_st
16 {
17 unsigned long (*hash_func)();
18 int (*cmp_func)();
19 void (*free_func)();
20 } NAME_FUNCS;
21
22DECLARE_STACK_OF(NAME_FUNCS)
23IMPLEMENT_STACK_OF(NAME_FUNCS)
24
25static STACK_OF(NAME_FUNCS) *name_funcs_stack;
26
27static unsigned long obj_name_hash(OBJ_NAME *a);
28static int obj_name_cmp(OBJ_NAME *a,OBJ_NAME *b);
29
30int OBJ_NAME_init(void)
31 {
32 if (names_lh != NULL) return(1);
33 MemCheck_off();
34 names_lh=lh_new(obj_name_hash,obj_name_cmp);
35 MemCheck_on();
36 return(names_lh != NULL);
37 }
38
39int OBJ_NAME_new_index(unsigned long (*hash_func)(), int (*cmp_func)(),
40 void (*free_func)())
41 {
42 int ret;
43 int i;
44 NAME_FUNCS *name_funcs;
45
46 if (name_funcs_stack == NULL)
47 {
48 MemCheck_off();
49 name_funcs_stack=sk_NAME_FUNCS_new_null();
50 MemCheck_on();
51 }
52 if ((name_funcs_stack == NULL))
53 {
54 /* ERROR */
55 return(0);
56 }
57 ret=names_type_num;
58 names_type_num++;
59 for (i=sk_NAME_FUNCS_num(name_funcs_stack); i<names_type_num; i++)
60 {
61 MemCheck_off();
62 name_funcs = Malloc(sizeof(NAME_FUNCS));
63 name_funcs->hash_func = lh_strhash;
64 name_funcs->cmp_func = (int (*)())strcmp;
65 name_funcs->free_func = 0; /* NULL is often declared to
66 * ((void *)0), which according
67 * to Compaq C is not really
68 * compatible with a function
69 * pointer. -- Richard Levitte*/
70 sk_NAME_FUNCS_push(name_funcs_stack,name_funcs);
71 MemCheck_on();
72 }
73 name_funcs = sk_NAME_FUNCS_value(name_funcs_stack, ret);
74 if (hash_func != NULL)
75 name_funcs->hash_func = hash_func;
76 if (cmp_func != NULL)
77 name_funcs->cmp_func = cmp_func;
78 if (free_func != NULL)
79 name_funcs->free_func = free_func;
80 return(ret);
81 }
82
83static int obj_name_cmp(OBJ_NAME *a, OBJ_NAME *b)
84 {
85 int ret;
86
87 ret=a->type-b->type;
88 if (ret == 0)
89 {
90 if ((name_funcs_stack != NULL)
91 && (sk_NAME_FUNCS_num(name_funcs_stack) > a->type))
92 {
93 ret=sk_NAME_FUNCS_value(name_funcs_stack,a->type)
94 ->cmp_func(a->name,b->name);
95 }
96 else
97 ret=strcmp(a->name,b->name);
98 }
99 return(ret);
100 }
101
102static unsigned long obj_name_hash(OBJ_NAME *a)
103 {
104 unsigned long ret;
105
106 if ((name_funcs_stack != NULL) && (sk_NAME_FUNCS_num(name_funcs_stack) > a->type))
107 {
108 ret=sk_NAME_FUNCS_value(name_funcs_stack,a->type)
109 ->hash_func(a->name);
110 }
111 else
112 {
113 ret=lh_strhash(a->name);
114 }
115 ret^=a->type;
116 return(ret);
117 }
118
119const char *OBJ_NAME_get(const char *name, int type)
120 {
121 OBJ_NAME on,*ret;
122 int num=0,alias;
123
124 if (name == NULL) return(NULL);
125 if ((names_lh == NULL) && !OBJ_NAME_init()) return(NULL);
126
127 alias=type&OBJ_NAME_ALIAS;
128 type&= ~OBJ_NAME_ALIAS;
129
130 on.name=name;
131 on.type=type;
132
133 for (;;)
134 {
135 ret=(OBJ_NAME *)lh_retrieve(names_lh,&on);
136 if (ret == NULL) return(NULL);
137 if ((ret->alias) && !alias)
138 {
139 if (++num > 10) return(NULL);
140 on.name=ret->data;
141 }
142 else
143 {
144 return(ret->data);
145 }
146 }
147 }
148
149int OBJ_NAME_add(const char *name, int type, const char *data)
150 {
151 OBJ_NAME *onp,*ret;
152 int alias;
153
154 if ((names_lh == NULL) && !OBJ_NAME_init()) return(0);
155
156 alias=type&OBJ_NAME_ALIAS;
157 type&= ~OBJ_NAME_ALIAS;
158
159 onp=(OBJ_NAME *)Malloc(sizeof(OBJ_NAME));
160 if (onp == NULL)
161 {
162 /* ERROR */
163 return(0);
164 }
165
166 onp->name=name;
167 onp->alias=alias;
168 onp->type=type;
169 onp->data=data;
170
171 ret=(OBJ_NAME *)lh_insert(names_lh,onp);
172 if (ret != NULL)
173 {
174 /* free things */
175 if ((name_funcs_stack != NULL) && (sk_NAME_FUNCS_num(name_funcs_stack) > ret->type))
176 {
177 /* XXX: I'm not sure I understand why the free
178 * function should get three arguments...
179 * -- Richard Levitte
180 */
181 sk_NAME_FUNCS_value(name_funcs_stack,ret->type)
182 ->free_func(ret->name,ret->type,ret->data);
183 }
184 Free(ret);
185 }
186 else
187 {
188 if (lh_error(names_lh))
189 {
190 /* ERROR */
191 return(0);
192 }
193 }
194 return(1);
195 }
196
197int OBJ_NAME_remove(const char *name, int type)
198 {
199 OBJ_NAME on,*ret;
200
201 if (names_lh == NULL) return(0);
202
203 type&= ~OBJ_NAME_ALIAS;
204 on.name=name;
205 on.type=type;
206 ret=(OBJ_NAME *)lh_delete(names_lh,&on);
207 if (ret != NULL)
208 {
209 /* free things */
210 if ((name_funcs_stack != NULL) && (sk_NAME_FUNCS_num(name_funcs_stack) > ret->type))
211 {
212 /* XXX: I'm not sure I understand why the free
213 * function should get three arguments...
214 * -- Richard Levitte
215 */
216 sk_NAME_FUNCS_value(name_funcs_stack,ret->type)
217 ->free_func(ret->name,ret->type,ret->data);
218 }
219 Free(ret);
220 return(1);
221 }
222 else
223 return(0);
224 }
225
226static int free_type;
227
228static void names_lh_free(OBJ_NAME *onp, int type)
229{
230 if(onp == NULL)
231 return;
232
233 if ((free_type < 0) || (free_type == onp->type))
234 {
235 OBJ_NAME_remove(onp->name,onp->type);
236 }
237 }
238
239static void name_funcs_free(NAME_FUNCS *ptr)
240 {
241 Free(ptr);
242 }
243
244void OBJ_NAME_cleanup(int type)
245 {
246 unsigned long down_load;
247
248 if (names_lh == NULL) return;
249
250 free_type=type;
251 down_load=names_lh->down_load;
252 names_lh->down_load=0;
253
254 lh_doall(names_lh,names_lh_free);
255 if (type < 0)
256 {
257 lh_free(names_lh);
258 sk_NAME_FUNCS_pop_free(name_funcs_stack,name_funcs_free);
259 names_lh=NULL;
260 name_funcs_stack = NULL;
261 }
262 else
263 names_lh->down_load=down_load;
264 }
265
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