1 files changed, 92 insertions, 0 deletions
diff --git a/src/postconf/extract_cfg.sh b/src/postconf/extract_cfg.sh
new file mode 100644
index 0000000..5901e95
--- /dev/null
+++ b/src/postconf/extract_cfg.sh
@@ -0,0 +1,92 @@
+#!/bin/sh
+
+# To view the formatted manual page of this file, type:
+#	POSTFIXSOURCE/mantools/srctoman - extract_cfg.sh | nroff -man
+
+#++
+# NAME
+#	extract_cfg 1
+# SUMMARY
+#	extract database parameter names from cfg_get_xxx() calls
+# SYNOPSIS
+#	\fBextract_cfg [-d|-s] [\fIfile...\fB]\fR
+# DESCRIPTION
+#	The \fBextract_cfg\fR command extracts the parameter names
+#	from cfg_get_{str,int,bool}() calls in dict_xxx.c files. The
+#	output is one parameter name per line, formatted as a C string
+#	followed by comma.
+#
+#	Options:
+# .IP \fB-d\fR
+#	Add the "domain" parameter to the output. This is used by
+#	the LDAP, memcache, and *SQL* tables.
+# .IP \fB-s\fR
+#	Add the legacy SQL query parameters: "select_field", "table",
+#	"where_field", and "additional_conditions".
+# LICENSE
+# .ad
+# .fi
+#	The Secure Mailer license must be distributed with this software.
+# HISTORY
+# .ad
+# .fi
+#	This command was introduced with Postfix 3.3.
+# AUTHOR(S)
+#	Wietse Venema
+#	Google, Inc.
+#	111 8th Avenue
+#	New York, NY 10011, USA
+#--
+
+# In case not installed.
+m4 </dev/null || exit 1
+
+# Flags to add db_common parameter names.
+add_legacy_sql_query_params=
+add_domain_param=
+
+# Parse JCL.
+
+while :
+do
+    case "$1" in
+    -d) add_domain_param=1;;
+    -s) add_legacy_sql_query_params=1;;
+    -*) echo Bad option: $1 1>&2; exit 1;;
+     *) break;;
+    esac
+    shift
+done
+
+# We use m4 macros to extract arguments from cfg_get_xxx() calls that
+# may span multiple lines. We sandwich information of interest between
+# control-A characters. Multiple cfg_get_xxx() calls on the same line
+# should be OK, as long as the calls don't nest.
+
+(
+cat <<'EOF'
+define(`cfg_get_str',`$2
+')dnl
+define(`cfg_get_int',`$2
+')dnl
+define(`cfg_get_bool',`$2
+')dnl
+EOF
+# Convert selected C macro definitions into m4 macro definitions.
+sed 's/^#define[ 	]*\([DICT_MC_NAME_A-Za-z0-9_]*\)[ 	]*\("[^"]*"\)/define(`\1'"'"',`\2'"'"')/' "$@"
+) | m4 | awk -F '// { print $2 }' | (
+test -n "$add_domain_param" && {
+cat <<EOF
+"domain"
+EOF
+}
+test -n "$add_legacy_sql_query_params" && {
+cat <<EOF
+"table"
+"select_field"
+"where_field"
+"additional_conditions"
+EOF
+}
+cat -
+) | sort -u | sed 's/$/,/'