X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/260958d632506e2789fc632381f560f5a0c77ed7..617d39327e65b7fccc41a12b4a5e2940d6327c9f:/src/src/pdkim/signing.c

diff --git a/src/src/pdkim/signing.c b/src/src/pdkim/signing.c
index b61b42832..b182c9a20 100644
--- a/src/src/pdkim/signing.c
+++ b/src/src/pdkim/signing.c
@@ -1,7 +1,7 @@
 /*
  *  PDKIM - a RFC4871 (DKIM) implementation
  *
- *  Copyright (C) 2017  Exim maintainers
+ *  Copyright (C) 1995 - 2018  Exim maintainers
  *
  *  signing/verification interface
  */
@@ -86,7 +86,7 @@ return string_cat(g, s);
 Return: NULL for success, or an error string */
 
 const uschar *
-exim_dkim_signing_init(uschar * privkey_pem, es_ctx * sign_ctx)
+exim_dkim_signing_init(const uschar * privkey_pem, es_ctx * sign_ctx)
 {
 gnutls_datum_t k = { .data = privkey_pem, .size = Ustrlen(privkey_pem) };
 gnutls_x509_privkey_t x509_key;
@@ -345,7 +345,7 @@ Only handles RSA keys.
 Return: NULL for success, or an error string */
 
 const uschar *
-exim_dkim_signing_init(uschar * privkey_pem, es_ctx * sign_ctx)
+exim_dkim_signing_init(const uschar * privkey_pem, es_ctx * sign_ctx)
 {
 uschar * s1, * s2;
 blob der;
@@ -401,7 +401,7 @@ Useful cmds:
 (not good for ed25519)
 
  */
- 
+
 if (  !(s1 = Ustrstr(CS privkey_pem, "-----BEGIN RSA PRIVATE KEY-----"))
    || !(s2 = Ustrstr(CS (s1+=31),    "-----END RSA PRIVATE KEY-----" ))
    )
@@ -694,7 +694,7 @@ ERR_load_crypto_strings();
 }
 
 
-/* accumulate data (was gnutls-onl but now needed for OpenSSL non-EC too
+/* accumulate data (was gnutls-only but now needed for OpenSSL non-EC too
 because now using hash-and-sign interface) */
 gstring *
 exim_dkim_data_append(gstring * g, uschar * s)
@@ -707,7 +707,7 @@ return string_cat(g, s);
 Return: NULL for success, or an error string */
 
 const uschar *
-exim_dkim_signing_init(uschar * privkey_pem, es_ctx * sign_ctx)
+exim_dkim_signing_init(const uschar * privkey_pem, es_ctx * sign_ctx)
 {
 BIO * bp = BIO_new_mem_buf(privkey_pem, -1);
 
@@ -752,10 +752,10 @@ if(  (ctx = EVP_MD_CTX_create())
 
 /* Initialise the DigestSign operation */
   && EVP_DigestSignInit(ctx, NULL, md, NULL, sign_ctx->key) > 0
- 
+
  /* Call update with the message */
    && EVP_DigestSignUpdate(ctx, data->data, data->len) > 0
- 
+
  /* Finalise the DigestSign operation */
  /* First call EVP_DigestSignFinal with a NULL sig parameter to obtain the length of the
   * signature. Length is returned in slen */