1 files changed, 153 insertions, 0 deletions
diff --git a/tests/stat/test_chmod.c b/tests/stat/test_chmod.c
new file mode 100644
index 00000000..94e6c12b
--- /dev/null
+++ b/tests/stat/test_chmod.c
@@ -0,0 +1,153 @@
+#include <assert.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <utime.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+void create_file(const char *path, const char *buffer, int mode) {
+  int fd = open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
+  assert(fd >= 0);
+
+  int err = write(fd, buffer, sizeof(char) * strlen(buffer));
+  assert(err ==  (sizeof(char) * strlen(buffer)));
+
+  close(fd);
+}
+
+void setup() {
+  create_file("file", "abcdef", 0777);
+  symlink("file", "file-link");
+  // some platforms use 777, some use 755 by default for symlinks
+  // make sure we're using 777 for the test
+  lchmod("file-link", 0777);
+  mkdir("folder", 0777);
+}
+
+void cleanup() {
+  unlink("file-link");
+  unlink("file");
+  rmdir("folder");
+}
+
+void test() {
+  int err;
+  int lastctime;
+  struct stat s;
+  
+  //
+  // chmod a file
+  //
+  // get the current ctime for the file
+  memset(&s, 0, sizeof s);
+  stat("file", &s);
+  lastctime = s.st_ctime;
+  sleep(1);
+
+  // do the actual chmod
+  err = chmod("file", 0200);
+  assert(!err);
+
+  memset(&s, 0, sizeof s);
+  stat("file", &s);
+#if USE_OLD_FS
+  assert(s.st_mode == (0222 | S_IFREG));
+#else
+  assert(s.st_mode == (0200 | S_IFREG));
+#endif
+  assert(s.st_ctime != lastctime);
+
+  //
+  // fchmod a file
+  //
+  lastctime = s.st_ctime;
+  sleep(1);
+
+  err = fchmod(open("file", O_WRONLY), 0100);
+  assert(!err);
+
+  memset(&s, 0, sizeof s);
+  stat("file", &s);
+#if USE_OLD_FS
+  assert(s.st_mode == (0000 | S_IFREG));
+#else
+  assert(s.st_mode == (0100 | S_IFREG));
+#endif
+  assert(s.st_ctime != lastctime);
+
+  //
+  // chmod a folder
+  //
+  // get the current ctime for the folder
+  memset(&s, 0, sizeof s);
+  stat("folder", &s);
+  lastctime = s.st_ctime;
+  sleep(1);
+
+  // do the actual chmod
+  err = chmod("folder", 0300);
+  assert(!err);
+  memset(&s, 0, sizeof s);
+  stat("folder", &s);
+#if USE_OLD_FS
+  assert(s.st_mode == (0222 | S_IFDIR));
+#else
+  assert(s.st_mode == (0300 | S_IFDIR));
+#endif
+  assert(s.st_ctime != lastctime);
+
+  //
+  // chmod a symlink's target
+  //
+  err = chmod("file-link", 0400);
+  assert(!err);
+
+  // make sure the file it references changed
+  stat("file-link", &s);
+#if USE_OLD_FS
+  assert(s.st_mode == (0555 | S_IFREG));
+#else
+  assert(s.st_mode == (0400 | S_IFREG));
+#endif
+
+  // but the link didn't
+  lstat("file-link", &s);
+  assert(s.st_mode == (0777 | S_IFLNK));
+
+  //
+  // chmod the actual symlink
+  //
+  err = lchmod("file-link", 0500);
+  assert(!err);
+
+  // make sure the file it references didn't change
+  stat("file-link", &s);
+#if USE_OLD_FS
+  assert(s.st_mode == (0555 | S_IFREG));
+#else
+  assert(s.st_mode == (0400 | S_IFREG));
+#endif
+
+  // but the link did
+  lstat("file-link", &s);
+#if USE_OLD_FS
+  assert(s.st_mode == (0555 | S_IFLNK));
+#else
+  assert(s.st_mode == (0500 | S_IFLNK));
+#endif
+
+  puts("success");
+}
+
+int main() {
+  atexit(cleanup);
+  signal(SIGABRT, cleanup);
+  setup();
+  test();
+  return EXIT_SUCCESS;
+}
+\ No newline at end of file