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| author | Elliott Hughes <enh@google.com> | 2021-06-07 17:41:22 -0700 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2021-06-09 00:26:37 -0500 |
| commit | 7ee66e9aec520afa1138876074b815295b6d1821 (patch) | |
| tree | 92b994774e90318a487f012e5d95164a61e656d6 | |
| parent | df63d49f9f661cb48a082a993770c9ba4d76c744 (diff) | |
| download | toybox-7ee66e9aec520afa1138876074b815295b6d1821.tar.gz | |
dmesg.c: fix off-by-one.
| -rw-r--r-- | toys/lsb/dmesg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/toys/lsb/dmesg.c b/toys/lsb/dmesg.c index 829fcd54..8736a8e5 100644 --- a/toys/lsb/dmesg.c +++ b/toys/lsb/dmesg.c @@ -141,7 +141,7 @@ void dmesg_main(void) for (;;) { // why does /dev/kmesg return EPIPE instead of EAGAIN if oldest message // expires as we read it? - if (-1==(len = read(fd, msg, sizeof(msg))) && errno==EPIPE) continue; + if (-1==(len = read(fd, msg, sizeof(msg)-1)) && errno==EPIPE) continue; // read() from kmsg always fails on a pre-3.5 kernel. if (len==-1 && errno==EINVAL) goto klogctl_mode; if (len<1) break; |