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| author | Jim Meyering <meyering@redhat.com> | 2008-07-23 14:50:52 +0200 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2008-07-23 15:55:45 +0200 |
| commit | e535754fdbe701e70f3ac9834b643a9272dc1d98 (patch) | |
| tree | 72f4d7236ca247db31001df16ec71599728c4045 /doc | |
| parent | f674a10f7ebc55de6181007a5216a297e3dc3365 (diff) | |
| download | coreutils-e535754fdbe701e70f3ac9834b643a9272dc1d98.tar.xz | |
dd: minor fullblock changes
* src/dd.c (O_FULLBLOCK): Define using an enum, not #define.
Derive the value, rather than hard-coding to one that might conflict.
(usage): Mention iflag=fullblock in --help output.
(scanargs): Reset the O_FULLBLOCK bit, so that we don't try to set
an undefined attribute via fcntl (fd, F_SETFL, ...
* tests/dd/misc: Signal framework_failure when necessary.
Use "compare actual expected", so any diffs look "right".
* NEWS (dd): Alphabetize and reword.
* coreutils.texi (dd invocation): Adjust wording.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/coreutils.texi | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index b95f8dc50..8eb8ac9da 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -7721,9 +7721,11 @@ standard platforms. @item fullblock @opindex fullblock -Read full blocks from input if possible. read() may return early -if a full block is not available, so retry until data is available -or end of file is reached. This flag can be used only for the iflag option. +Accumulate full blocks from input. The @code{read} system call +may return early if a full block is not available. +When that happens, continue calling @code{read} to fill the remainder +of the block. +This flag can be used only with @code{iflag}. @end table |