[331] | 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include <openssl/evp.h>
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| 13 | #include <internal/objects.h>
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| 14 | #include <openssl/x509.h>
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| 15 | #include "internal/evp_int.h"
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| 16 |
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| 17 | int EVP_add_cipher(const EVP_CIPHER *c)
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| 18 | {
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| 19 | int r;
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| 20 |
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| 21 | if (c == NULL)
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| 22 | return 0;
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| 23 |
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| 24 | r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
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| 25 | (const char *)c);
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| 26 | if (r == 0)
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| 27 | return (0);
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| 28 | r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
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| 29 | (const char *)c);
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| 30 | return (r);
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| 31 | }
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| 32 |
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| 33 | int EVP_add_digest(const EVP_MD *md)
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| 34 | {
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| 35 | int r;
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| 36 | const char *name;
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| 37 |
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| 38 | name = OBJ_nid2sn(md->type);
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| 39 | r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md);
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| 40 | if (r == 0)
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| 41 | return (0);
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| 42 | r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH,
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| 43 | (const char *)md);
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| 44 | if (r == 0)
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| 45 | return (0);
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| 46 |
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| 47 | if (md->pkey_type && md->type != md->pkey_type) {
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| 48 | r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type),
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| 49 | OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
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| 50 | if (r == 0)
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| 51 | return (0);
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| 52 | r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type),
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| 53 | OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
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| 54 | }
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| 55 | return (r);
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| 56 | }
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| 57 |
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| 58 | const EVP_CIPHER *EVP_get_cipherbyname(const char *name)
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| 59 | {
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| 60 | const EVP_CIPHER *cp;
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| 61 |
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| 62 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL))
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| 63 | return NULL;
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| 64 |
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| 65 | cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
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| 66 | return (cp);
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| 67 | }
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| 68 |
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| 69 | const EVP_MD *EVP_get_digestbyname(const char *name)
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| 70 | {
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| 71 | const EVP_MD *cp;
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| 72 |
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| 73 | if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL))
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| 74 | return NULL;
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| 75 |
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| 76 | cp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
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| 77 | return (cp);
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| 78 | }
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| 79 |
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| 80 | void evp_cleanup_int(void)
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| 81 | {
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| 82 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH);
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| 83 | OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH);
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| 84 | /*
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| 85 | * The above calls will only clean out the contents of the name hash
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| 86 | * table, but not the hash table itself. The following line does that
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| 87 | * part. -- Richard Levitte
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| 88 | */
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| 89 | OBJ_NAME_cleanup(-1);
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| 90 |
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| 91 | EVP_PBE_cleanup();
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| 92 | OBJ_sigid_free();
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| 93 | }
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| 94 |
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| 95 | struct doall_cipher {
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| 96 | void *arg;
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| 97 | void (*fn) (const EVP_CIPHER *ciph,
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| 98 | const char *from, const char *to, void *arg);
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| 99 | };
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| 100 |
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| 101 | static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg)
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| 102 | {
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| 103 | struct doall_cipher *dc = arg;
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| 104 | if (nm->alias)
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| 105 | dc->fn(NULL, nm->name, nm->data, dc->arg);
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| 106 | else
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| 107 | dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg);
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| 108 | }
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| 109 |
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| 110 | void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph,
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| 111 | const char *from, const char *to, void *x),
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| 112 | void *arg)
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| 113 | {
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| 114 | struct doall_cipher dc;
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| 115 |
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| 116 | /* Ignore errors */
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| 117 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL);
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| 118 |
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| 119 | dc.fn = fn;
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| 120 | dc.arg = arg;
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| 121 | OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
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| 122 | }
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| 123 |
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| 124 | void EVP_CIPHER_do_all_sorted(void (*fn) (const EVP_CIPHER *ciph,
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| 125 | const char *from, const char *to,
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| 126 | void *x), void *arg)
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| 127 | {
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| 128 | struct doall_cipher dc;
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| 129 |
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| 130 | /* Ignore errors */
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| 131 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL);
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| 132 |
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| 133 | dc.fn = fn;
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| 134 | dc.arg = arg;
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| 135 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
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| 136 | }
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| 137 |
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| 138 | struct doall_md {
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| 139 | void *arg;
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| 140 | void (*fn) (const EVP_MD *ciph,
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| 141 | const char *from, const char *to, void *arg);
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| 142 | };
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| 143 |
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| 144 | static void do_all_md_fn(const OBJ_NAME *nm, void *arg)
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| 145 | {
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| 146 | struct doall_md *dc = arg;
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| 147 | if (nm->alias)
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| 148 | dc->fn(NULL, nm->name, nm->data, dc->arg);
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| 149 | else
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| 150 | dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg);
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| 151 | }
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| 152 |
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| 153 | void EVP_MD_do_all(void (*fn) (const EVP_MD *md,
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| 154 | const char *from, const char *to, void *x),
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| 155 | void *arg)
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| 156 | {
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| 157 | struct doall_md dc;
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| 158 |
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| 159 | /* Ignore errors */
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| 160 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
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| 161 |
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| 162 | dc.fn = fn;
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| 163 | dc.arg = arg;
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| 164 | OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
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| 165 | }
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| 166 |
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| 167 | void EVP_MD_do_all_sorted(void (*fn) (const EVP_MD *md,
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| 168 | const char *from, const char *to,
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| 169 | void *x), void *arg)
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| 170 | {
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| 171 | struct doall_md dc;
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| 172 |
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| 173 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
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| 174 |
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| 175 | dc.fn = fn;
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| 176 | dc.arg = arg;
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| 177 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
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| 178 | }
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