common: Fix iobuf API of filter function for alignment.

* common/iobuf.h (IOBUFCTRL_DESC): Change the call semantics.
* common/iobuf.c (iobuf_desc): Add the second argument DESC.
(print_chain, iobuf_close, do_open, iobuf_sockopen, iobuf_ioctl)
(iobuf_push_filter2, pop_filter, iobuf_write_temp): Change calls
of iobuf_desc.
(file_filter, file_es_filter, sock_filter, block_filter): Fill the
description.
* common/t-iobuf.c (every_other_filter, double_filter): Likewise.
* g10/armor.c, g10/cipher.c, g10/compress-bz2.c, g10/compress.c,
g10/decrypt-data.c, g10/encrypt.c, g10/mdfilter.c, g10/progress.c,
g10/textfilter.c: Likewise.

--

Newer GCC warns against possible alignment difference of pointers.
This change can silence those warnings.

Signed-off-by: NIIBE Yutaka <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/g10/decrypt-data.c b/g10/decrypt-data.c
index 2d9f54f31..1380fafdc 100644
--- a/g10/decrypt-data.c
+++ b/g10/decrypt-data.c
@@ -425,7 +425,7 @@ mdc_decode_filter (void *opaque, int control, IOBUF a,
     }
   else if ( control == IOBUFCTRL_DESC )
     {
-      *(char**)buf = "mdc_decode_filter";
+      mem2str (buf, "mdc_decode_filter", *ret_len);
     }
   return rc;
 }
@@ -496,7 +496,7 @@ decode_filter( void *opaque, int control, IOBUF a, byte *buf, size_t *ret_len)
     }
   else if ( control == IOBUFCTRL_DESC )
     {
-      *(char**)buf = "decode_filter";
+      mem2str (buf, "decode_filter", *ret_len);
     }
   return rc;
 }