From 6af6438b0a0ffc4d4b92e81a70d29557cc573309 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sun, 3 Jul 2005 06:25:42 +0000 Subject: (main): Reuse stdin rather than opening a new stream. This saves a file descriptor. --- src/du.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'src/du.c') diff --git a/src/du.c b/src/du.c index 2d2dad222..8ea4ed335 100644 --- a/src/du.c +++ b/src/du.c @@ -941,8 +941,6 @@ main (int argc, char **argv) if (files_from) { - FILE *istream; - /* When using --files0-from=F, you may not specify any files on the command-line. */ if (optind < argc) @@ -953,14 +951,13 @@ main (int argc, char **argv) usage (EXIT_FAILURE); } - istream = (STREQ (files_from, "-") ? stdin : fopen (files_from, "r")); - if (istream == NULL) + if (! (STREQ (files_from, "-") || freopen (files_from, "r", stdin))) error (EXIT_FAILURE, errno, _("cannot open %s for reading"), quote (files_from)); readtokens0_init (&tok); - if (! readtokens0 (istream, &tok) || fclose (istream) != 0) + if (! readtokens0 (stdin, &tok) || fclose (stdin) != 0) error (EXIT_FAILURE, 0, _("cannot read file names from %s"), quote (files_from)); -- cgit v1.2.3-54-g00ecf