[PATCH 1/7] If EVP_DecryptInit_ex() returns NULL, j is incremented by a random amount in PEM_do_header()

[Brent Cook]

clang warning:
pem/pem_lib.c:472:6: error: variable 'i' is used uninitialized whenever 'if' 
condition is false
      [-Werror,-Wsometimes-uninitialized]
        if (o)
            ^
pem/pem_lib.c:479:7: note: uninitialized use occurs here
        j += i;
             ^
pem/pem_lib.c:472:2: note: remove the 'if' if its condition is always true
        if (o)
        ^~~~~~
pem/pem_lib.c:446:7: note: initialize the variable 'i' to silence this warning
        int i, j, o, klen;
---
 src/crypto/pem/pem_lib.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/crypto/pem/pem_lib.c b/src/crypto/pem/pem_lib.c
index 945262f..92c3dc4 100644
--- a/src/crypto/pem/pem_lib.c
+++ b/src/crypto/pem/pem_lib.c
@@ -454,6 +454,7 @@ PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, 
long *plen,
            (unsigned char *)buf, klen, 1, key, NULL))
                return 0;
 
+       i = 0;
        j = (int)len;
        EVP_CIPHER_CTX_init(&ctx);
        o = EVP_DecryptInit_ex(&ctx, cipher->cipher, NULL, key,
-- 
1.9.3