Prepend '-' to the first argument if required, more const, indent

diff --git a/archival/ar.c b/archival/ar.c
index 70deb5c..de5bc9b 100644 (file)
--- a/archival/ar.c
+++ b/archival/ar.c
@@ -49,22 +49,27 @@ static void header_verbose_list_ar(const file_header_t *file_header)
        printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, (int) file_header->size, &mtime[4], file_header->name);
 }
 
-#define AR_CTX_PRINT                   0x01
-#define AR_CTX_LIST                            0x02
-#define AR_CTX_EXTRACT                 0x04
+#define AR_CTX_PRINT           0x01
+#define AR_CTX_LIST            0x02
+#define AR_CTX_EXTRACT         0x04
 #define AR_OPT_PRESERVE_DATE   0x08
-#define AR_OPT_VERBOSE                 0x10
-#define AR_OPT_CREATE                  0x20
-#define AR_OPT_INSERT                  0x40
+#define AR_OPT_VERBOSE         0x10
+#define AR_OPT_CREATE          0x20
+#define AR_OPT_INSERT          0x40
 
 extern int ar_main(int argc, char **argv)
 {
        archive_handle_t *archive_handle;
        unsigned long opt;
-       char *msg_unsupported_err = "Archive %s not supported.  Install binutils 'ar'.";
+       static const char msg_unsupported_err[] = 
+                       "Archive %s not supported.  Install binutils 'ar'.";
        char magic[8];
 
        archive_handle = init_handle();
+       
+       /* Prepend '-' to the first argument if required */
+       if (argv[1][0] != '-')
+               argv[1] = bb_xasprintf("-%s", argv[1]);
 
        bb_opt_complementally = "?p~tx:t~px:x~pt";
        opt = bb_getopt_ulflags(argc, argv, "ptxovcr");