svn commit: r330091 - head/bin/ps
Mike Karels
karels at FreeBSD.org
Wed Feb 28 00:17:09 UTC 2018
Author: karels
Date: Wed Feb 28 00:17:08 2018
New Revision: 330091
URL: https://svnweb.freebsd.org/changeset/base/330091
Log:
Revert r314685 in ps
Revert r314685, and add a comment describing the original
behavior and the intent.
Reviewed by: dab@ vangyzen@ jhb@
Differential Revision: https://reviews.freebsd.org/D14530
Modified:
head/bin/ps/ps.c
Modified: head/bin/ps/ps.c
==============================================================================
--- head/bin/ps/ps.c Tue Feb 27 22:22:23 2018 (r330090)
+++ head/bin/ps/ps.c Wed Feb 28 00:17:08 2018 (r330091)
@@ -194,10 +194,17 @@ main(int argc, char *argv[])
(void) setlocale(LC_ALL, "");
time(&now); /* Used by routines in print.c. */
+ /*
+ * Compute default output line length before processing options.
+ * If COLUMNS is set, use it. Otherwise, if this is part of an
+ * interactive job (i.e. one associated with a terminal), use
+ * the terminal width. "Interactive" is determined by whether
+ * any of stdout, stderr, or stdin is a terminal. The intent
+ * is that "ps", "ps | more", and "ps | grep" all use the same
+ * default line length unless -w is specified.
+ */
if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0')
termwidth = atoi(cols);
- else if (!isatty(STDOUT_FILENO))
- termwidth = UNLIMITED;
else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) ||
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