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(dd_copy): When using sync with either block or unblock,

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This commit is contained in:
Jim Meyering
2001-04-23 07:38:33 +00:00
parent 2afd912ce5
commit cc3ea7c99f
1 changed files with 6 additions and 3 deletions
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src/dd.c
+6 -3
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@@ -946,7 +946,7 @@ dd_copy (void)
{
/* FIXME: this loses for
% ./dd if=dd seek=1 |:
./dd: standard output: Bad file number
./dd: standard output: Bad file descriptor
0+0 records in
0+0 records out
*/
@@ -966,7 +966,9 @@ dd_copy (void)
whatever data we are able to read is followed by zeros.
This minimizes data loss. */
if ((conversions_mask & C_SYNC) && (conversions_mask & C_NOERROR))
memset ((char *) ibuf, 0, input_blocksize);
memset ((char *) ibuf,
(conversions_mask & (C_BLOCK | C_UNBLOCK)) ? ' ' : '\0',
input_blocksize);
nread = safe_read (STDIN_FILENO, ibuf, input_blocksize);
@@ -1005,7 +1007,8 @@ dd_copy (void)
{
if (!(conversions_mask & C_NOERROR))
/* If C_NOERROR, we zeroed the block before reading. */
memset ((char *) (ibuf + n_bytes_read), 0,
memset ((char *) (ibuf + n_bytes_read),
(conversions_mask & (C_BLOCK | C_UNBLOCK)) ? ' ' : '\0',
input_blocksize - n_bytes_read);
n_bytes_read = input_blocksize;
}