- fix writev1() to pre-decrement count.
- always open ttys with O_NDELAY.
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parent
cb2c856119
commit
0787d10414
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@ -1,4 +1,4 @@
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/* $NetBSD: syslogd.c,v 1.110 2012/06/18 19:17:42 christos Exp $ */
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/* $NetBSD: syslogd.c,v 1.111 2012/06/19 13:44:35 christos Exp $ */
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/*
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* Copyright (c) 1983, 1988, 1993, 1994
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@ -39,7 +39,7 @@ __COPYRIGHT("@(#) Copyright (c) 1983, 1988, 1993, 1994\
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#if 0
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static char sccsid[] = "@(#)syslogd.c 8.3 (Berkeley) 4/4/94";
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#else
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__RCSID("$NetBSD: syslogd.c,v 1.110 2012/06/18 19:17:42 christos Exp $");
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__RCSID("$NetBSD: syslogd.c,v 1.111 2012/06/19 13:44:35 christos Exp $");
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#endif
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#endif /* not lint */
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@ -2422,7 +2422,7 @@ fprintlog(struct filed *f, struct buf_msg *passedbuffer, struct buf_queue *qentr
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*/
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if ((e == EIO || e == EBADF) && f->f_type != F_FILE) {
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f->f_file = open(f->f_un.f_fname,
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O_WRONLY|O_APPEND|O_NDELAY, 0);
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O_WRONLY|O_APPEND|O_NDELAY|O_NONBLOCK, 0);
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if (f->f_file < 0) {
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f->f_type = F_UNUSED;
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logerror("%s", f->f_un.f_fname);
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@ -3822,7 +3822,7 @@ cfline(size_t linenum, const char *line, struct filed *f, const char *prog,
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f->f_flags |= FFLAG_SIGN;
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#endif /* !DISABLE_SIGN */
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(void)strlcpy(f->f_un.f_fname, p, sizeof(f->f_un.f_fname));
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if ((f->f_file = open(p, O_WRONLY|O_APPEND, 0)) < 0) {
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if ((f->f_file = open(p, O_WRONLY|O_APPEND|O_NDELAY, 0)) < 0) {
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f->f_type = F_UNUSED;
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logerror("%s", p);
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break;
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@ -4708,6 +4708,8 @@ writev1(int fd, struct iovec *iov, size_t count)
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ssize_t nw = 0, tot = 0;
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size_t ntries = 5;
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if (count == 0)
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return 0;
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while (ntries--) {
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switch ((nw = writev(fd, iov, count))) {
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case -1:
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@ -4718,8 +4720,8 @@ writev1(int fd, struct iovec *iov, size_t count)
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pfd.revents = 0;
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(void)poll(&pfd, 1, 500);
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continue;
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} else
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return -1;
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}
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return -1;
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case 0:
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return 0;
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default:
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@ -4727,10 +4729,11 @@ writev1(int fd, struct iovec *iov, size_t count)
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while (nw > 0) {
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if (iov->iov_len > (size_t)nw) {
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iov->iov_len -= nw;
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iov->iov_base = (char *)iov->iov_base + nw;
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iov->iov_base =
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(char *)iov->iov_base + nw;
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break;
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} else {
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if (count-- == 0)
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if (--count == 0)
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return tot;
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nw -= iov->iov_len;
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iov++;
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