From: Collin Funk <collin.funk1@gmail.com>
Date: Wed, 27 May 2026 02:39:29 +0000 (-0700)
Subject: printenv: remove unsupported short options from getopt_long
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=255febf98b6b6b98e2871c7305d8f0ec564ba0c4;p=thirdparty%2Fcoreutils.git

printenv: remove unsupported short options from getopt_long

This patch only improves some error messages. Here is the behavior
before the patch:

    $ printenv -i
    Try 'printenv --help' for more information.
    $ printenv -u
    printenv: option requires an argument -- 'u'
    Try 'printenv --help' for more information.
    $ printenv -u a
    Try 'printenv --help' for more information.

Here is the behavior after:

    $ ./src/printenv -i
    ./src/printenv: invalid option -- 'i'
    Try './src/printenv --help' for more information.
    $ ./src/printenv -u
    ./src/printenv: invalid option -- 'u'
    Try './src/printenv --help' for more information.
    $ ./src/printenv -u a
    ./src/printenv: invalid option -- 'u'
    Try './src/printenv --help' for more information.

* src/printenv.c (main): Remove 'i' and 'u' from the short options given
to getopt_long.
---

diff --git a/src/printenv.c b/src/printenv.c
index 1f68dd2cc2..c2b1c69cda 100644
--- a/src/printenv.c
+++ b/src/printenv.c
@@ -93,7 +93,7 @@ main (int argc, char **argv)
   atexit (close_stdout);
 
   int optc;
-  while ((optc = getopt_long (argc, argv, "+iu:0", longopts, NULL)) != -1)
+  while ((optc = getopt_long (argc, argv, "+0", longopts, NULL)) != -1)
     {
       switch (optc)
         {