cmdline: Print available protocols when --version is run.

NEWS

@@ -49,6 +49,7 @@ ver 0.15 - (200?/??/??)
 * daemon: ignore "user" setting if already running as that user
 * listen: fix broken client IP addresses in log
 * 32 bit audio support
+* Print available protocols in --version
 
 
 ver 0.14.2 (2009/02/13)

src/cmdline.c

@@ -23,6 +23,7 @@
 #include "decoder_list.h"
 #include "config.h"
 #include "audioOutput.h"
+#include "ls.h"
 
 #ifdef ENABLE_ARCHIVE
 #include "archive_list.h"
@@ -63,6 +64,10 @@ static void version(void)
 	archive_plugin_print_all_suffixes(stdout);
 #endif
 
+	puts("\n"
+	      "Supported protocols:\n");
+	print_supported_uri_schemes_to_fp(stdout);
+
 	exit(EXIT_SUCCESS);
 }
 

src/ls.c

@@ -24,6 +24,12 @@
 #include <assert.h>
 #include <string.h>
 
+
+/**
+  * file:// is not included in remoteUrlPrefixes, the connection method
+  * is detected at runtime and displayed as a urlhandler if the client is
+  * connected by IPC socket.
+  */
 static const char *remoteUrlPrefixes[] = {
 #ifdef HAVE_CURL
 	"http://",
@@ -40,6 +46,20 @@ static const char *remoteUrlPrefixes[] = {
 	NULL
 };
 
+void print_supported_uri_schemes_to_fp(FILE *fp)
+{
+	const char **prefixes = remoteUrlPrefixes;
+
+#ifdef HAVE_UN
+	fprintf(fp, "file:// ");
+#endif
+	while (*prefixes) {
+		fprintf(fp, "%s ", *prefixes);
+		prefixes++;
+	}
+	puts("\n");
+}
+
 void print_supported_uri_schemes(struct client *client)
 {
 	const char **prefixes = remoteUrlPrefixes;

src/ls.h

@@ -20,6 +20,7 @@
 #define MPD_LS_H
 
 #include <stdbool.h>
+#include <stdio.h>
 
 struct client;
 
@@ -36,4 +37,9 @@ bool uri_supported_scheme(const char *url);
  */
 void print_supported_uri_schemes(struct client *client);
 
+/**
+ * Send a list of supported URI schemes to a file pointer.
+ */
+void print_supported_uri_schemes_to_fp(FILE *fp);
+
 #endif