cmdline: fix for long input

Signed-off-by: Intel

diff --git a/lib/librte_cmdline/cmdline_rdline.c b/lib/librte_cmdline/cmdline_rdline.c
index 0f99e61..1d0e51b 100644 (file)
--- a/lib/librte_cmdline/cmdline_rdline.c
+++ b/lib/librte_cmdline/cmdline_rdline.c
@@ -118,9 +118,10 @@ rdline_newline(struct rdline *rdl, const char *prompt)
        cirbuf_init(&rdl->left, rdl->left_buf, 0, RDLINE_BUF_SIZE);
        cirbuf_init(&rdl->right, rdl->right_buf, 0, RDLINE_BUF_SIZE);
 
+       rdl->prompt_size = strnlen(prompt, RDLINE_PROMPT_SIZE-1);
        if (prompt != rdl->prompt)
-               memcpy(rdl->prompt, prompt, sizeof(rdl->prompt)-1);
-       rdl->prompt_size = strnlen(prompt, RDLINE_PROMPT_SIZE);
+               memcpy(rdl->prompt, prompt, rdl->prompt_size);
+       rdl->prompt[RDLINE_PROMPT_SIZE-1] = '\0';
 
        for (i=0 ; i<rdl->prompt_size ; i++)
                rdl->write_char(rdl, rdl->prompt[i]);