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| author | Jim Meyering <jim@meyering.net> | 2005-08-12 08:25:52 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 2005-08-12 08:25:52 +0000 |
| commit | 1442403a5da3f891b6f7f07b4f36a687c39e94c0 (patch) | |
| tree | 272ec1e4b1936e664a065ce85824cd7e58246aed /src/nohup.c | |
| parent | 19b17d2ce62dc279449cc93e0175943473690540 (diff) | |
| download | coreutils-1442403a5da3f891b6f7f07b4f36a687c39e94c0.tar.xz | |
(main): Explain why we reopen stdin for write-only access.
Diffstat (limited to 'src/nohup.c')
| -rw-r--r-- | src/nohup.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/nohup.c b/src/nohup.c index b8b8c76b0..bd3bc3bd7 100644 --- a/src/nohup.c +++ b/src/nohup.c @@ -97,7 +97,9 @@ main (int argc, char **argv) usage (NOHUP_FAILURE); } - /* If standard input is a tty, replace it with /dev/null. */ + /* If standard input is a tty, replace it with /dev/null. + Note that it is deliberately opened for *writing*, + to ensure any read evokes an error. */ if (isatty (STDIN_FILENO)) fd_reopen (STDIN_FILENO, "/dev/null", O_WRONLY, 0); |