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In certain cases sbuf_printf() and sbuf_vprintf() could mistakely

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make extendable sbufs as overflowed.

Approved by:	des
This commit is contained in:
phk 2002-01-22 11:22:55 +00:00
parent 069b88ab0a
commit cbd45b6c66
1 changed files with 1 additions and 1 deletions
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2
sys/kern/subr_sbuf.c
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@ -426,7 +426,7 @@ sbuf_vprintf(struct sbuf *s, const char *fmt, va_list ap)
* given sufficient space, hence the min() calculation below.
*/
s->s_len += min(len, SBUF_FREESPACE(s));
if (!SBUF_HASROOM(s))
if (!SBUF_HASROOM(s) && !SBUF_CANEXTEND(s))
SBUF_SETFLAG(s, SBUF_OVERFLOWED);
KASSERT(s->s_len < s->s_size,