utils/ps.c: Don't limit output width to 80 on non-tty

If no output width limit has been set explicitly, and we're not printing
to a tty, do not limit output width.

In particular, this fixes grepping ps output.
Message-Id: <20210518122150.1490468-1-bugaevc@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/utils/ps.c b/utils/ps.c
index 2cf6e4bd..d6c55f7e 100644
--- a/utils/ps.c
+++ b/utils/ps.c
@@ -367,6 +367,11 @@ main(int argc, char *argv[])
   /* Parse our command line.  This shouldn't ever return an error.  */
   argp_parse (&argp, argc, argv, 0, 0, 0);
 
+  /* If no output width limit has been set explicitly, and we're not printing
+     to a tty, do not limit output width.  */
+  if (output_width == -1 && !isatty (STDOUT_FILENO))
+    output_width = 0;
+
   msgids_scan_std ();
 
   err = proc_stat_list_create(context, &procset);