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openssl: don't init static structs differently

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make_ctr_evp() is changed to take a struct pointer, and then each
_libssh2_EVP_aes_[keylen]_ctr function is made to pass in their own
static struct

Reported by: John Engstrom
Fixes #229
This commit is contained in:
Daniel Stenberg
2011-09-28 22:22:44 +02:00
parent abd00727ef
commit 24afd0fc72
1 changed files with 15 additions and 14 deletions
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29
src/openssl.c
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@@ -315,38 +315,39 @@ aes_ctr_cleanup(EVP_CIPHER_CTX *ctx) /* cleanup ctx */
} }
static const EVP_CIPHER * static const EVP_CIPHER *
make_ctr_evp (size_t keylen) make_ctr_evp (size_t keylen, EVP_CIPHER *aes_ctr_cipher)
{ {
static EVP_CIPHER aes_ctr_cipher; memset(aes_ctr_cipher, 0, sizeof(aes_ctr_cipher));
memset(&aes_ctr_cipher, 0, sizeof(aes_ctr_cipher)); aes_ctr_cipher->block_size = 16;
aes_ctr_cipher->key_len = keylen;
aes_ctr_cipher->iv_len = 16;
aes_ctr_cipher->init = aes_ctr_init;
aes_ctr_cipher->do_cipher = aes_ctr_do_cipher;
aes_ctr_cipher->cleanup = aes_ctr_cleanup;
aes_ctr_cipher.block_size = 16; return aes_ctr_cipher;
aes_ctr_cipher.key_len = keylen;
aes_ctr_cipher.iv_len = 16;
aes_ctr_cipher.init = aes_ctr_init;
aes_ctr_cipher.do_cipher = aes_ctr_do_cipher;
aes_ctr_cipher.cleanup = aes_ctr_cleanup;
return &aes_ctr_cipher;
} }
const EVP_CIPHER * const EVP_CIPHER *
_libssh2_EVP_aes_128_ctr(void) _libssh2_EVP_aes_128_ctr(void)
{ {
return make_ctr_evp (16); static EVP_CIPHER aes_ctr_cipher;
return make_ctr_evp (16, &aes_ctr_cipher);
} }
const EVP_CIPHER * const EVP_CIPHER *
_libssh2_EVP_aes_192_ctr(void) _libssh2_EVP_aes_192_ctr(void)
{ {
return make_ctr_evp (24); static EVP_CIPHER aes_ctr_cipher;
return make_ctr_evp (24, &aes_ctr_cipher);
} }
const EVP_CIPHER * const EVP_CIPHER *
_libssh2_EVP_aes_256_ctr(void) _libssh2_EVP_aes_256_ctr(void)
{ {
return make_ctr_evp (32); static EVP_CIPHER aes_ctr_cipher;
return make_ctr_evp (32, &aes_ctr_cipher);
} }
#endif /* LIBSSH2_AES_CTR */ #endif /* LIBSSH2_AES_CTR */