Fix error return check of EVP_CIPHER_CTX_ctrl() #18987
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OpenSSL can return -1 on error [1, 2], and OpenBSD's docs confirm this [3]. Existing checks check for 1 for the success value, so do the same. [1] https://github.com/openssl/openssl/blob/b3161bd9a9329be3d6bf6b29a06835e2721898bb/crypto/evp/evp_enc.c#L1530-L1531 [2] https://github.com/openssl/openssl/blob/b3161bd9a9329be3d6bf6b29a06835e2721898bb/crypto/evp/evp_enc.c#L1611 [3] https://man.openbsd.org/EVP_CIPHER_CTX_ctrl.3
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OpenSSL can return -1 on error [1, 2], and OpenBSD's docs confirm this [3]. Existing checks check for 1 for the success value, so do the same.
[1] https://github.com/openssl/openssl/blob/b3161bd9a9329be3d6bf6b29a06835e2721898bb/crypto/evp/evp_enc.c#L1530-L1531
[2] https://github.com/openssl/openssl/blob/b3161bd9a9329be3d6bf6b29a06835e2721898bb/crypto/evp/evp_enc.c#L1611
[3] https://man.openbsd.org/EVP_CIPHER_CTX_ctrl.3
This is the first batch of potentially a few of these fixes. #18986 prompted me to dig up my old analyzer and re-run it with the combined codebases of PHP and OpenSSL to check for inconsistencies.