Date: Sun, 20 Oct 2002 16:13:05 -0700 (PDT) From: Thomas Moestl <tmm@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern subr_log.c Message-ID: <200210202313.g9KND5Om089921@repoman.freebsd.org>
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tmm 2002/10/20 16:13:05 PDT
Modified files:
sys/kern subr_log.c
Log:
Fix the calculations of the length of the unread message buffer
contents. The code was subtracting two unsigned ints, stored the
result in a log and expected it to be the same as of a signed
subtraction; this does only work on platforms where int and long
have the same size (due to overflows).
Instead, cast to long before the subtraction; the numbers are
guaranteed to be small enough so that there will be no overflows
because of that.
Revision Changes Path
1.51 +2 -2 src/sys/kern/subr_log.c
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