test: add nftw test case

test/misc/tst-nftw.c

@@ -0,0 +1,57 @@
+#define _XOPEN_SOURCE 500 
+#define _GNU_SOURCE
+#include <ftw.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+int result = 0;
+
+static int process_one_entry(const char *fpath, const struct stat *sb,
+                             int typeflag, struct FTW *ftwbuf)
+{
+    
+    struct stat buf;
+    const char *rel_path = fpath+ftwbuf->base;
+
+    printf("Processing %s in working dir %s\n",
+	   rel_path, get_current_dir_name());
+    if (stat(rel_path, &buf) < 0) {
+	perror("Oops...relative path does not exist in current directory");
+	result = 1;
+    }
+}
+
+static int
+do_test(void)
+{
+    char *path = "/tmp/stest_dir";
+    char *subpath = "/tmp/stest_dir/d1";
+    char *filepath = "/tmp/stest_dir/f1";
+    char *filesubpath = "/tmp/stest_dir/d1/f2";
+    
+    if ((mkdir(path, 0700)) < 0)
+	perror("Creating path");
+    if ((mkdir(subpath, 0700)) < 0)
+	perror("Creating subpath");
+    if ((open(filepath, O_CREAT)) < 0)
+	perror("Opening filepath");
+    if ((open(filesubpath, O_CREAT)) < 0)
+	perror("Opening filesubpath");
+
+    if (nftw(path, process_one_entry, 100, (FTW_CHDIR|FTW_DEPTH|FTW_PHYS)) < 0)
+        perror("ntfw");
+
+    unlink(filesubpath);
+    unlink(filepath);
+    rmdir(subpath);
+    rmdir(path);
+
+    return result;
+}
+
+#define TIMEOUT 5
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"