Author: pfg
Date: Fri Jun 20 21:41:30 2014
New Revision: 267692
URL: http://svnweb.freebsd.org/changeset/base/267692
Log:
Add -u (unbuffered output) after GNU sed.
Obtained from: NetBSD
MFC after: 1 week
Modified:
head/usr.bin/sed/main.c
head/usr.bin/sed/sed.1
Modified: head/usr.bin/sed/main.c
==============================================================================
--- head/usr.bin/sed/main.c Fri Jun 20 21:35:39 2014 (r267691)
+++ head/usr.bin/sed/main.c Fri Jun 20 21:41:30 2014 (r267692)
@@ -132,7 +132,7 @@ main(int argc, char *argv[])
fflag = 0;
inplace = NULL;
- while ((c = getopt(argc, argv, "EI:ae:f:i:lnr")) != -1)
+ while ((c = getopt(argc, argv, "EI:ae:f:i:lnru")) != -1)
switch (c) {
case 'r': /* Gnu sed compat */
case 'E':
@@ -168,6 +168,16 @@ main(int argc, char *argv[])
case 'n':
nflag = 1;
break;
+ case 'u':
+#ifdef _IONBF
+ c = setvbuf(stdout, NULL, _IONBF, 0);
+#else
+ c = -1;
+ errno = EOPNOTSUPP;
+#endif
+ if (c)
+ warnx("setting unbuffered output failed");
+ break;
default:
case '?':
usage();
@@ -199,9 +209,10 @@ main(int argc, char *argv[])
static void
usage(void)
{
- (void)fprintf(stderr, "%s\n%s\n",
- "usage: sed script [-Ealn] [-i extension] [file ...]",
- " sed [-Ealn] [-i extension] [-e script] ... [-f
script_file] ... [file ...]");
+ (void)fprintf(stderr,
+ "usage: %s script [-Ealnru] [-i[<extension>]] [file ...]\n"
+ "\t%s [-Ealnu] [-i[<extension>]] [-e script] ... [-f script_file]"
+ " ... [file ...]\n", getprogname(), getprogname());
exit(1);
}
Modified: head/usr.bin/sed/sed.1
==============================================================================
--- head/usr.bin/sed/sed.1 Fri Jun 20 21:35:39 2014 (r267691)
+++ head/usr.bin/sed/sed.1 Fri Jun 20 21:41:30 2014 (r267692)
@@ -31,7 +31,7 @@
.\" @(#)sed.1 8.2 (Berkeley) 12/30/93
.\" $FreeBSD$
.\"
-.Dd December 9, 2013
+.Dd June 20, 2014
.Dt SED 1
.Os
.Sh NAME
@@ -39,7 +39,7 @@
.Nd stream editor
.Sh SYNOPSIS
.Nm
-.Op Fl Ealnr
+.Op Fl Ealnru
.Ar command
.Op Ar
.Nm
@@ -148,6 +148,8 @@ option suppresses this behavior.
Same as
.Fl E
for compatibility with GNU sed.
+.It Fl u
+Make output unbuffered.
.El
.Pp
The form of a
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