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78 lines
2.3 KiB
78 lines
2.3 KiB
7 years ago
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From de3c26d6333a00210de8d112cdb90dc8c2e19367 Mon Sep 17 00:00:00 2001
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From: Lars Ellenberg <lars.ellenberg@linbit.com>
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Date: Mon, 22 Sep 2014 14:58:58 +0200
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Subject: [PATCH 3/6] Fix: ocf_exit_reason: implicit format string "%s" for
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single argument version
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Also, don't use the $msg as format string, but via "%s%s" "$cookie" "$msg".
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Or, depending on presence of % sequences in $msg,
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you'd get different output on stderr and via ha_log.
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Without the patch:
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( OCF_ROOT=$PWD dash -c '. heartbeat/ocf-shellfuncs.in ; ocf_exit_reason "0.x% Bugs less"' )
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dash: 372: printf: % B: invalid directive
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ocf-exit-reason:0.x
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( OCF_ROOT=$PWD dash -c '. heartbeat/ocf-shellfuncs.in ; ocf_exit_reason "0.x% bugs less"' )
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ocf-exit-reason:0.xugs less
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With this patch:
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( OCF_ROOT=$PWD dash -c '. heartbeat/ocf-shellfuncs.in ; ocf_exit_reason "0.x% Bugs less"' )
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ocf-exit-reason:0.x% Bugs less
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( OCF_ROOT=$PWD dash -c '. heartbeat/ocf-shellfuncs.in ; ocf_exit_reason "0.x% bugs less"' )
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ocf-exit-reason:0.x% bugs less
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---
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heartbeat/ocf-shellfuncs.in | 27 +++++++++++++++++++--------
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1 file changed, 19 insertions(+), 8 deletions(-)
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diff --git a/heartbeat/ocf-shellfuncs.in b/heartbeat/ocf-shellfuncs.in
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index 9ba8e26..c370fca 100644
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--- a/heartbeat/ocf-shellfuncs.in
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+++ b/heartbeat/ocf-shellfuncs.in
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@@ -356,22 +356,33 @@ ocf_log() {
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ocf_exit_reason()
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{
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local cookie="$OCF_EXIT_REASON_PREFIX"
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- local fmt="$1"
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+ local fmt
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local msg
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- if [ $# -lt 1 ]; then
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- ocf_log err "Not enough arguments [$#] to ocf_log_exit_msg."
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- fi
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+ # No argument is likely not intentional.
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+ # Just one argument implies a printf format string of just "%s".
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+ # "Least surprise" in case some interpolated string from variable
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+ # expansion or other contains a percent sign.
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+ # More than one argument: first argument is going to be the format string.
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+ case $# in
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+ 0) ocf_log err "Not enough arguments to ocf_log_exit_msg." ;;
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+ 1) fmt="%s" ;;
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+
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+ *) fmt=$1
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+ shift
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+ case $fmt in
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+ *%*) : ;; # ok, does look like a format string
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+ *) ocf_log warn "Does not look like format string: [$fmt]" ;;
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+ esac ;;
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+ esac
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+
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if [ -z "$cookie" ]; then
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# use a default prefix
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cookie="ocf-exit-reason:"
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fi
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- shift
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-
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msg=$(printf "${fmt}" "$@")
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-
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- printf >&2 "%s${msg}\n" "$cookie"
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+ printf >&2 "%s%s\n" "$cookie" "$msg"
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__ha_log_ignore_stderr_once="true"
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ha_log "ERROR: $msg"
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}
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--
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1.8.4.2
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