1e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#include <openssl/opensslconf.h>
2e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
3e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#ifdef OPENSSL_NO_JPAKE
4e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
5e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#include <stdio.h>
6e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
7e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modaduguint main(int argc, char *argv[])
8e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu{
9e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    printf("No J-PAKE support\n");
10e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    return(0);
11e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu}
12e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
13e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#else
14e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
15e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#include <openssl/jpake.h>
16e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#include <openssl/err.h>
17e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
18e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugustatic void showbn(const char *name, const BIGNUM *bn)
19e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    {
20e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    fputs(name, stdout);
21e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    fputs(" = ", stdout);
22e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_print_fp(stdout, bn);
23e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    putc('\n', stdout);
24e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    }
25e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
26e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugustatic int run_jpake(JPAKE_CTX *alice, JPAKE_CTX *bob)
27e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    {
28e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1 alice_s1;
29e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1 bob_s1;
30e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2 alice_s2;
31e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2 bob_s2;
32e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3A alice_s3a;
33e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3B bob_s3b;
34e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
35e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Alice -> Bob: step 1 */
36e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    puts("A->B s1");
37e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1_init(&alice_s1);
38e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1_generate(&alice_s1, alice);
39e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(!JPAKE_STEP1_process(bob, &alice_s1))
40e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
41e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	printf("Bob fails to process Alice's step 1\n");
42e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	ERR_print_errors_fp(stdout);
43e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 1;
44e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
45e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1_release(&alice_s1);
46e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
47e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Bob -> Alice: step 1 */
48e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    puts("B->A s1");
49e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1_init(&bob_s1);
50e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1_generate(&bob_s1, bob);
51e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(!JPAKE_STEP1_process(alice, &bob_s1))
52e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
53e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	printf("Alice fails to process Bob's step 1\n");
54e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	ERR_print_errors_fp(stdout);
55e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 2;
56e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
57e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP1_release(&bob_s1);
58e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
59e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Alice -> Bob: step 2 */
60e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    puts("A->B s2");
61e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2_init(&alice_s2);
62e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2_generate(&alice_s2, alice);
63e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(!JPAKE_STEP2_process(bob, &alice_s2))
64e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
65e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	printf("Bob fails to process Alice's step 2\n");
66e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	ERR_print_errors_fp(stdout);
67e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 3;
68e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
69e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2_release(&alice_s2);
70e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
71e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Bob -> Alice: step 2 */
72e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    puts("B->A s2");
73e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2_init(&bob_s2);
74e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2_generate(&bob_s2, bob);
75e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(!JPAKE_STEP2_process(alice, &bob_s2))
76e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
77e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	printf("Alice fails to process Bob's step 2\n");
78e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	ERR_print_errors_fp(stdout);
79e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 4;
80e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
81e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP2_release(&bob_s2);
82e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
83e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    showbn("Alice's key", JPAKE_get_shared_key(alice));
84e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    showbn("Bob's key  ", JPAKE_get_shared_key(bob));
85e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
86e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Alice -> Bob: step 3a */
87e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    puts("A->B s3a");
88e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3A_init(&alice_s3a);
89e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3A_generate(&alice_s3a, alice);
90e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(!JPAKE_STEP3A_process(bob, &alice_s3a))
91e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
92e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	printf("Bob fails to process Alice's step 3a\n");
93e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	ERR_print_errors_fp(stdout);
94e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 5;
95e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
96e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3A_release(&alice_s3a);
97e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
98e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Bob -> Alice: step 3b */
99e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    puts("B->A s3b");
100e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3B_init(&bob_s3b);
101e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3B_generate(&bob_s3b, bob);
102e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(!JPAKE_STEP3B_process(alice, &bob_s3b))
103e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
104e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	printf("Alice fails to process Bob's step 3b\n");
105e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	ERR_print_errors_fp(stdout);
106e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 6;
107e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
108e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_STEP3B_release(&bob_s3b);
109e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
110e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    return 0;
111e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    }
112e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
113e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modaduguint main(int argc, char **argv)
114e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    {
115e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_CTX *alice;
116e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_CTX *bob;
117e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BIGNUM *p = NULL;
118e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BIGNUM *g = NULL;
119e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BIGNUM *q = NULL;
120e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BIGNUM *secret = BN_new();
121e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BIO *bio_err;
122e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
123e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
124e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
125e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    CRYPTO_malloc_debug_init();
126e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
127e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
128e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
129e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    ERR_load_crypto_strings();
130e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
131e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    /*
132e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_hex2bn(&p, "fd7f53811d75122952df4a9c2eece4e7f611b7523cef4400c31e3f80b6512669455d402251fb593d8d58fabfc5f5ba30f6cb9b556cd7813b801d346ff26660b76b9950a5a49f9fe8047b1022c24fbba9d7feb7c61bf83b57e7c6a8a6150f04fb83f6d3c51ec3023554135a169132f675f3ae2b61d72aeff22203199dd14801c7");
133e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_hex2bn(&g, "f7e1a085d69b3ddecbbcab5c36b857b97994afbbfa3aea82f9574c0b3d0782675159578ebad4594fe67107108180b449167123e84c281613b7cf09328cc8a6e13c167a8b547c8d28e0a3ae1e2bb3a675916ea37f0bfa213562f1fb627a01243bcca4f1bea8519089a883dfe15ae59f06928b665e807b552564014c3bfecf492a");
134e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_hex2bn(&q, "9760508f15230bccb292b982a2eb840bf0581cf5");
135e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    */
136e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    /*
137e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    p = BN_new();
138e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_generate_prime(p, 1024, 1, NULL, NULL, NULL, NULL);
139e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    */
140e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Use a safe prime for p (that we found earlier) */
141e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
142e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    showbn("p", p);
143e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    g = BN_new();
144e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_set_word(g, 2);
145e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    showbn("g", g);
146e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    q = BN_new();
147e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_rshift1(q, p);
148e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    showbn("q", q);
149e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
150e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_rand(secret, 32, -1, 0);
151e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
152e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* A normal run, expect this to work... */
153e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    alice = JPAKE_CTX_new("Alice", "Bob", p, g, q, secret);
154e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    bob = JPAKE_CTX_new("Bob", "Alice", p, g, q, secret);
155e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
156e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(run_jpake(alice, bob) != 0)
157e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
158e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	fprintf(stderr, "Plain JPAKE run failed\n");
159e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 1;
160e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
161e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
162e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_CTX_free(bob);
163e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_CTX_free(alice);
164e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
165e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu   /* Now give Alice and Bob different secrets */
166e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    alice = JPAKE_CTX_new("Alice", "Bob", p, g, q, secret);
167e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_add_word(secret, 1);
168e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    bob = JPAKE_CTX_new("Bob", "Alice", p, g, q, secret);
169e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
170e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    if(run_jpake(alice, bob) != 5)
171e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	{
172e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	fprintf(stderr, "Mismatched secret JPAKE run failed\n");
173e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	return 1;
174e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu	}
175e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
176e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_CTX_free(bob);
177e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    JPAKE_CTX_free(alice);
178e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
179e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_free(secret);
180e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_free(q);
181e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_free(g);
182e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    BN_free(p);
183e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
184e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    CRYPTO_cleanup_all_ex_data();
185221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom    ERR_remove_thread_state(NULL);
186e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    ERR_free_strings();
187e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    CRYPTO_mem_leaks(bio_err);
188e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
189e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    return 0;
190e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu    }
191e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu
192e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu#endif
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