Fix copy_string dst validation

Signed-off-by: David Goulet <david.goulet@polymtl.ca>

diff --git a/liblttngctl/lttngctl.c b/liblttngctl/lttngctl.c
index 14055ed48451b652b06db40e72e7b1de013e3bff..827de137e550ef33de57de09f0d823079d2fd513 100644 (file)
--- a/liblttngctl/lttngctl.c
+++ b/liblttngctl/lttngctl.c
@@ -47,7 +47,7 @@ static int connected;
  */
 static void copy_string(char *dst, const char *src, size_t len)
 {
  */
 static void copy_string(char *dst, const char *src, size_t len)
 {

-       if (src) {
+       if (src && dst) {

                strncpy(dst, src, len);
                /* Enforce the NULL terminated byte */
                dst[len - 1] = '\0';
                strncpy(dst, src, len);
                /* Enforce the NULL terminated byte */
                dst[len - 1] = '\0';