android/client: Add command line arguments

This patch adds command line argument parsing.
Options added:
 -h, --help
 -n, --no-init - disable initialization of interfaces
     --version

diff --git a/android/client/haltest.c b/android/client/haltest.c
index 107dfec..7154d27 100644 (file)
--- a/android/client/haltest.c
+++ b/android/client/haltest.c
@@ -23,6 +23,7 @@
 #include <unistd.h>
 #include <poll.h>
 #include <unistd.h>
+#include <getopt.h>
 
 #include "if-main.h"
 #include "terminal.h"
@@ -222,7 +223,7 @@ const char *interface_name(void *v, int i)
 /* Function to enumerate command and interface names */
 const char *command_name(void *v, int i)
 {
-       int cmd_cnt = (int) (sizeof(commands)/sizeof(commands[0]) - 1);
+       int cmd_cnt = NELEM(commands);
 
        if (i >= cmd_cnt)
                return interface_name(v, i - cmd_cnt);
@@ -318,6 +319,65 @@ static void stdin_handler(struct pollfd *pollfd)
        }
 }
 
+static void usage(void)
+{
+       printf("haltest Android Bluetooth HAL testing tool\n"
+               "Usage:\n");
+       printf("\thaltest [options]\n");
+       printf("options:\n"
+               "\t-n, --no-init          Don't call init for interfaces\n"
+               "\t    --version          Print version\n"
+               "\t-h, --help             Show help options\n");
+}
+
+enum {
+       PRINT_VERSION = 1000
+};
+
+int version = 1;
+int revision = 0;
+
+static void print_version(void)
+{
+       printf("haltest version %d.%d\n", version, revision);
+}
+
+static const struct option main_options[] = {
+       { "no-init", no_argument, NULL, 'n' },
+       { "help",    no_argument, NULL, 'h' },
+       { "version", no_argument, NULL, PRINT_VERSION },
+       { NULL }
+};
+
+static bool no_init = false;
+
+static void parse_command_line(int argc, char *argv[])
+{
+       for (;;) {
+               int opt;
+
+               opt = getopt_long(argc, argv, "nh", main_options, NULL);
+               if (opt < 0)
+                       break;
+
+               switch (opt) {
+               case 'n':
+                       no_init = true;
+                       break;
+               case 'h':
+                       usage();
+                       exit(0);
+               case PRINT_VERSION:
+                       print_version();
+                       exit(0);
+               default:
+                       putchar('\n');
+                       exit(-1);
+                       break;
+               }
+       }
+}
+
 static void init(void)
 {
        static const char * const inames[] = {
@@ -356,8 +416,12 @@ int main(int argc, char **argv)
 {
        struct stat rcstat;
 
+       parse_command_line(argc, argv);
+
        terminal_setup();
-       init();
+
+       if (!no_init)
+               init();
 
        history_restore(".haltest_history");