From: Martin Mares <mj@ucw.cz>
Date: Wed, 26 Apr 2006 09:38:39 +0000 (+0200)
Subject: If CONFIG_DEBUG is enabled, all programs support a --dumpconfig switch,
X-Git-Tag: holmes-import~645^2~11^2~33
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=83d55cc96eff953e26ea0696dd69c2400108db7b;p=libucw.git

If CONFIG_DEBUG is enabled, all programs support a --dumpconfig switch,
which dumps the current configuration.
---

diff --git a/lib/conf2.c b/lib/conf2.c
index 0d6d4eb5..92cc7f3b 100644
--- a/lib/conf2.c
+++ b/lib/conf2.c
@@ -1383,7 +1383,7 @@ cf_get_opt(int argc, char * const argv[], const char *short_opts, const struct o
   static int other_options = 0;
   while (1) {
     int res = getopt_long (argc, argv, short_opts, long_opts, long_index);
-    if (res == 'S' || res == 'C')
+    if (res == 'S' || res == 'C' || res == 0x64436667)
     {
       if (other_options)
 	die("The -S and -C options must precede all other arguments");
@@ -1391,10 +1391,18 @@ cf_get_opt(int argc, char * const argv[], const char *short_opts, const struct o
 	load_default();
 	if (cf_set(optarg))
 	  die("Cannot set %s", optarg);
-      } else {
+      } else if (res == 'C') {
 	if (cf_load(optarg))
 	  die("Cannot load config file %s", optarg);
       }
+#ifdef CONFIG_DEBUG
+      else {   /* --dumpconfig */
+	load_default();
+	struct fastbuf *b = bfdopen(1, 4096);
+	cf_dump_sections(b);
+	bclose(b);
+      }
+#endif
     } else {
       /* unhandled option or end of options */
       if (res != ':' && res != '?')
diff --git a/lib/conf2.h b/lib/conf2.h
index 0021f3f2..f59bd648 100644
--- a/lib/conf2.h
+++ b/lib/conf2.h
@@ -54,7 +54,7 @@ typedef void *cf_dumper1(struct fastbuf *fb, void *ptr);
 struct cf_user_type {
   uns size;				// of the parsed attribute
   cf_parser1 *parser;			// how to parse it
-  cf_dumper1 *dumper;			// optional and for debugging purposes only
+  cf_dumper1 *dumper;			// how to dump the type
 };
 
 struct cf_section;
@@ -189,14 +189,22 @@ void cf_dump_sections(struct fastbuf *fb);
  */
 
 #define	CF_SHORT_OPTS	"C:S:"
-#define	CF_LONG_OPTS	{"config",	1, 0, 'C'}, {"set",		1, 0, 'S'},
+#define	CF_LONG_OPTS	{"config",	1, 0, 'C'}, {"set",		1, 0, 'S'}, CF_LONG_OPTS_DEBUG
 #define CF_NO_LONG_OPTS (const struct option []) { CF_LONG_OPTS { NULL, 0, 0, 0 } }
 #ifndef CF_USAGE_TAB
 #define CF_USAGE_TAB ""
 #endif
 #define	CF_USAGE	\
 "-C, --config filename\t" CF_USAGE_TAB "Override the default configuration file\n\
--S, --set sec.item=val\t" CF_USAGE_TAB "Manual setting of a configuration item\n"
+-S, --set sec.item=val\t" CF_USAGE_TAB "Manual setting of a configuration item\n" CF_USAGE_DEBUG
+
+#ifdef CONFIG_DEBUG
+#define CF_LONG_OPTS_DEBUG { "dumpconfig", 0, 0, 0x64436667 } ,
+#define CF_USAGE_DEBUG "    --dumpconfig\t" CF_USAGE_TAB "Dump program configuration\n"
+#else
+#define CF_LONG_OPTS_DEBUG
+#define CF_USAGE_DEBUG
+#endif
 
 #include <getopt.h>
 struct option;