Change in coreboot[master]: util/kconfig/nconf.c: change strlen to strnlen and int to size_t

[Jude Rich (Code Review)]

Jude Rich has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38139 )

Change subject: util/kconfig/nconf.c: change strlen to strnlen and int to size_t
......................................................................

util/kconfig/nconf.c: change strlen to strnlen and int to size_t

size_t is a more appropriate data type for strings, and strnlen
is safer than strlen when faced with no null termination.
Function argument spacing has also been changed to be more consistent
with the rest of the file.

Signed-off-by: Jude A Rich 
Change-Id: I950a65a8a2051e296c4e72afc4a72f789eb5be22
---
M util/kconfig/nconf.c
1 file changed, 8 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/39/38139/1

diff --git a/util/kconfig/nconf.c b/util/kconfig/nconf.c
index 4181c41..afbeb52 100644
--- a/util/kconfig/nconf.c
+++ b/util/kconfig/nconf.c
@@ -567,14 +567,16 @@
    va_list ap;
    char *append_ptr; /* pointer to the free space in the target string */
    int index = items_num-1; /* index of item to append string */
-	int kmi_str_len; /* length of initial string */
-	int str_space; /* length of unused space in string */
+	size_t kmi_str_len; /* length of initial string */
+	size_t str_space; /* length of unused space in string */

/* return if there's no item to work with */
    if (index < 0)
    	return;

-	kmi_str_len = strlen(k_menu_items[index].str);
+	kmi_str_len = strnlen(
+			k_menu_items[index].str,
+			sizeof(k_menu_items[index].str));
    str_space = sizeof(k_menu_items[index].str) - kmi_str_len;
    append_ptr = k_menu_items[index].str + kmi_str_len;

@@ -585,8 +587,9 @@

/* set menu item to new item string */
    free_item(curses_menu_items[index]);
-	curses_menu_items[index] = new_item(k_menu_items[index].str,
-	    k_menu_items[index].str);
+	curses_menu_items[index] = new_item(
+			k_menu_items[index].str,
+			k_menu_items[index].str);
    set_item_userptr(curses_menu_items[index], &k_menu_items[index]);
 }