Initial commit

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
index 0000000..d2221fb
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+CXXFLAGS=-O -Wall
+
+OBJS=scandir.o
+
+scandir : $(OBJS)
+       $(CXX) $(LDFLAGS) -o $@ $^

diff --git a/scandir.cc b/scandir.cc
new file mode 100644 (file)
index 0000000..7e02f27
--- /dev/null
+++ b/scandir.cc
@@ -0,0 +1,75 @@
+/* Recursively descend the filesystem and visit each file. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <string>
+
+using std::string;
+
+void scandir(const string& path);
+
+void scanfile(const string& path)
+{
+    struct stat stat_buf;
+    lstat(path.c_str(), &stat_buf);
+
+    printf("%s:\n", path.c_str());
+    printf("  ino=%Ld, perm=%04o, uid=%d, gid=%d, nlink=%d, blksize=%d, size=%Ld\n",
+           (int64_t)stat_buf.st_ino, stat_buf.st_mode & 07777,
+           stat_buf.st_uid, stat_buf.st_gid, stat_buf.st_nlink,
+           (int)stat_buf.st_blksize, (int64_t)stat_buf.st_size);
+
+    switch (stat_buf.st_mode & S_IFMT) {
+    case S_IFIFO:
+    case S_IFSOCK:
+    case S_IFCHR:
+    case S_IFBLK:
+    case S_IFLNK:
+        printf("  special file\n");
+        break;
+    case S_IFREG:
+        printf("  regular file\n");
+        break;
+    case S_IFDIR:
+        printf("  directory\n");
+        scandir(path);
+        break;
+    }
+}
+
+void scandir(const string& path)
+{
+    printf("Scan directory: %s\n", path.c_str());
+
+    DIR *dir = opendir(path.c_str());
+
+    if (dir == NULL) {
+        printf("Error: %m\n");
+        return;
+    }
+
+    struct dirent *ent;
+    while ((ent = readdir(dir)) != NULL) {
+        string filename(ent->d_name);
+        if (filename == "." || filename == "..")
+            continue;
+        printf("  d_name = '%s'\n", filename.c_str());
+        scanfile(path + "/" + filename);
+    }
+
+    closedir(dir);
+}
+
+int main(int argc, char *argv[])
+{
+    scandir(".");
+
+    return 0;
+}