X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/889d293b45a5b0124aea16c41294860b3905a262..2d5bf0979718f106016157dff7c6e7cdb01ac2b4:/src/src/base64.c

diff --git a/src/src/base64.c b/src/src/base64.c
index e63522ec4..289383b66 100644
--- a/src/src/base64.c
+++ b/src/src/base64.c
@@ -38,7 +38,7 @@ ssize_t
 mime_decode_base64(FILE * in, FILE * out, uschar * boundary)
 {
 uschar ibuf[MIME_MAX_LINE_LENGTH], obuf[MIME_MAX_LINE_LENGTH];
-uschar *ipos, *opos;
+uschar *opos;
 ssize_t len, size = 0;
 int bytestate = 0;
 
@@ -52,7 +52,7 @@ while (Ufgets(ibuf, MIME_MAX_LINE_LENGTH, in) != NULL)
      )
     break;
 
-  for (ipos = ibuf ; *ipos != '\r' && *ipos != '\n' && *ipos != 0; ++ipos)
+  for (uschar * ipos = ibuf ; *ipos != '\r' && *ipos != '\n' && *ipos; ++ipos)
     if (*ipos == '=')			/* skip padding */
       ++bytestate;
 
@@ -242,7 +242,7 @@ static uschar *enc64table =
   US"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
 uschar *
-b64encode(uschar *clear, int len)
+b64encode(const uschar * clear, int len)
 {
 uschar *code = store_get(4*((len+2)/3) + 1);
 uschar *p = code;