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Fix off-by-one in icb_sendfmt

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This commit is contained in:
Mike Belopuhov 2017-08-29 21:28:34 +02:00
parent 9336c3bb36
commit d8c39673f9
1 changed files with 2 additions and 2 deletions
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4
icb.c
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@ -671,7 +671,7 @@ icb_sendfmt(struct icb_session *is, const char *fmt, ...)
{
char buf[ICB_MSGSIZE];
va_list ap;
int res, buflen = 1;
int res, buflen;
va_start(ap, fmt);
res = vsnprintf(&buf[1], sizeof buf - 1, fmt, ap);
@ -680,7 +680,7 @@ icb_sendfmt(struct icb_session *is, const char *fmt, ...)
icbd_log(NULL, LOG_ERR, "Format error in %s", __func__);
return;
}
buflen += MIN((size_t)res + 1, sizeof buf - 1);
buflen = MIN((size_t)res + 1, sizeof buf - 1);
buf[0] = buflen;
icbd_send(is, buf, buflen + 1);
}