From bd0b6feb730db8e08137817d1512b2b468fbb31a Mon Sep 17 00:00:00 2001
From: CyberLeo <cyberleo@arba.cyberleo.net>
Date: Sat, 21 Feb 2009 00:48:49 -0600
Subject: [PATCH] All diagnostics print to stderr, to prevent tainting flag
 cache if a crc32 algo is not usable

---
 flag | 46 +++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/flag b/flag
index 479fd83..1a38a6b 100755
--- a/flag
+++ b/flag
@@ -61,7 +61,7 @@ find_crc32_bin() {
   then
     export crc32_bin="${crc32}"
   else
-    echo "Failed to locate usable crc32 algo"
+    echo "Failed to locate usable crc32 algo" >&2
     unset crc32_bin
     return 1
   fi
@@ -113,12 +113,12 @@ hexdec() {
 flag() {
   if [ -z "${1}" ]
   then
-    echo "Usage: flag 'hexcode' [symbol] [shellmode]"
-    echo "Generates an ANSI color flag using the specified hex codes"
-    echo "Uses the optional symbol (or ' ') to draw the flag"
-    echo "shellmode encapsulates all nonprintable codes in \[\] to"
-    echo " give the shell hints on how long the string is, for proper"
-    echo " wrapping of command prompts."
+    echo "Usage: flag 'hexcode' [symbol] [shellmode]" >&2
+    echo "Generates an ANSI color flag using the specified hex codes" >&2
+    echo "Uses the optional symbol (or ' ') to draw the flag" >&2
+    echo "shellmode encapsulates all nonprintable codes in \[\] to" >&2
+    echo " give the shell hints on how long the string is, for proper" >&2
+    echo " wrapping of command prompts." >&2
     return
   fi
   data="${1}"
@@ -139,22 +139,22 @@ flag() {
 }
 
 pebkac() {
-   echo "Usage: $(basename "${0}") [-s #] [-e]"
-   echo "Produces a neat little ansi colour 'flag' based off"
-   echo " a hash of the machine's hostname (or settable via"
-   echo " ~/.flag or /etc/flag) which can uniquely visually"
-   echo " identify a machine, at a glance. Useful for placing"
-   echo " into /etc/issue or your bash prompt, so that you"
-   echo " don't send stupid commands to the wrong machine."
-   echo " "
-   echo " -s #   Specify which character should be used to"
-   echo "         render the flag. If empty, use the hex code."
-   echo " -e     Turn on bash encapsulation mode, to provide"
-   echo "         hints to Bash on what is or is not printable"
-   echo "         so it can wrap your commands appropriately"
-   echo "         when used in your prompt"
-   echo " "
-   echo "This machine's flag is as such: ($(flag "${flag_hex}"))"
+   echo "Usage: $(basename "${0}") [-s #] [-e]" >&2
+   echo "Produces a neat little ansi colour 'flag' based off" >&2
+   echo " a hash of the machine's hostname (or settable via" >&2
+   echo " ~/.flag or /etc/flag) which can uniquely visually" >&2
+   echo " identify a machine, at a glance. Useful for placing" >&2
+   echo " into /etc/issue or your bash prompt, so that you" >&2
+   echo " don't send stupid commands to the wrong machine." >&2
+   echo " " >&2
+   echo " -s #   Specify which character should be used to" >&2
+   echo "         render the flag. If empty, use the hex code." >&2
+   echo " -e     Turn on bash encapsulation mode, to provide" >&2
+   echo "         hints to Bash on what is or is not printable" >&2
+   echo "         so it can wrap your commands appropriately" >&2
+   echo "         when used in your prompt" >&2
+   echo " " >&2
+   echo "This machine's flag is as such: ($(flag "${flag_hex}"))" >&2
    exit 1
 }
 
-- 
2.42.0