command.c: Improve get_status().

We know exactly the number of bytes in the result buffer. By returning
this information, the caller can use sc_send_bin_buffer() instead of
sc_send_buffer(), which safes one strlen() call.

diff --git a/command.c b/command.c
index c18cd4ddcec4e6f75de5b0434e90b4de86dc1a4b..9c175f35ec45087325db2ef3dbb3249689de0708 100644 (file)
--- a/command.c
+++ b/command.c
@@ -102,7 +102,8 @@ static char *vss_get_status_flags(unsigned int flags)
        return msg;
 }
 
-static char *get_status(struct misc_meta_data *nmmd, int parser_friendly)
+static unsigned get_status(struct misc_meta_data *nmmd, int parser_friendly,
+               char **result)
 {
        char mtime[30] = "";
        char *status, *flags; /* vss status info */
@@ -142,7 +143,8 @@ static char *get_status(struct misc_meta_data *nmmd, int parser_friendly)
        free(flags);
        free(status);
        free(ut);
-       return b.buf;
+       *result = b.buf;
+       return b.offset;
 }
 
 static int check_sender_args(int argc, char * const * argv, struct sender_command_data *scd)
@@ -495,8 +497,8 @@ int com_stat(struct command_context *cc)
                return -E_COMMAND_SYNTAX;
        for (;;) {
                mmd_dup(nmmd);
-               s = get_status(nmmd, parser_friendly);
-               ret = sc_send_buffer(&cc->scc, s);
+               ret = get_status(nmmd, parser_friendly, &s);
+               ret = sc_send_bin_buffer(&cc->scc, s, ret);
                free(s);
                if (ret < 0)
                        goto out;