From 347677c3330ece8496b9cd242fd7e4292c2260ae Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Fri, 24 Apr 2026 15:55:21 -0400
Subject: NUL terminate after copy

---
 tests/test_relocation.c | 1 +
 tests/test_str.c        | 3 +++
 tests/test_utils.c      | 1 +
 3 files changed, 5 insertions(+)

(limited to 'tests')

diff --git a/tests/test_relocation.c b/tests/test_relocation.c
index 69142dc..3454a69 100644
--- a/tests/test_relocation.c
+++ b/tests/test_relocation.c
@@ -15,6 +15,7 @@ void test_replace_text() {
         const char *expected = targets[i + 1];
         char input[BUFSIZ] = {0};
         strncpy(input, test_string, sizeof(input) - 1);
+        input[sizeof(input) - 1] = '\0';
 
         printf("input: %s\n", input);
         printf("target: %s\n", target);
diff --git a/tests/test_str.c b/tests/test_str.c
index aac5d71..09d8809 100644
--- a/tests/test_str.c
+++ b/tests/test_str.c
@@ -38,6 +38,7 @@ void test_tolower_s() {
     for (size_t i = 0; i < sizeof(tc) / sizeof(*tc); i++) {
         char input[100] = {0};
         strncpy(input, tc[i].data, sizeof(input) - 1);
+        input[sizeof(input) - 1] = '\0';
         tolower_s(input);
         STASIS_ASSERT(strcmp(input, tc[i].expected) == 0, "unexpected result");
     }
@@ -318,6 +319,7 @@ void test_lstrip() {
     for (size_t i = 0; i < sizeof(tc) / sizeof(*tc); i++) {
         char *buf = calloc(255, sizeof(*buf));
         strncpy(buf, tc[i].data, 254);
+        buf[254] = '\0';
         char *result = lstrip(buf);
         STASIS_ASSERT(strcmp(result ? result : "", tc[i].expected) == 0, "incorrect strip-from-left");
         guard_free(buf);
@@ -342,6 +344,7 @@ void test_strip() {
     for (size_t i = 0; i < sizeof(tc) / sizeof(*tc); i++) {
         char *buf = calloc(255, sizeof(*buf));
         strncpy(buf, tc[i].data, 254);
+        buf[254] = '\0';
         char *result = strip(buf);
         STASIS_ASSERT(strcmp(result ? result : "", tc[i].expected) == 0, "incorrect strip-from-right");
         guard_free(buf);
diff --git a/tests/test_utils.c b/tests/test_utils.c
index a5faf5c..4f89509 100644
--- a/tests/test_utils.c
+++ b/tests/test_utils.c
@@ -312,6 +312,7 @@ void test_path_dirname() {
         const char *expected = data[i + 1];
         char tmp[PATH_MAX] = {0};
         strncpy(tmp, input, sizeof(tmp) - 1);
+        tmp[sizeof(tmp) - 1] = '\0';
 
         char *result = path_dirname(tmp);
         STASIS_ASSERT(strcmp(expected, result) == 0, NULL);
-- 
cgit