refine the documentation, add extra warning messages

[lunaix-os.git] / lunaix-os / usr / stat.c

diff --git a/lunaix-os/usr/stat.c b/lunaix-os/usr/stat.c
index 108f462b887ad42882698e1b5d0e885938a4286a..3e782e96a428dd658304efaf6418c3c23f32661e 100644 (file)
--- a/lunaix-os/usr/stat.c
+++ b/lunaix-os/usr/stat.c
@@ -2,6 +2,7 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <sys/types.h>
 
 static char buf[256];
 
@@ -15,7 +16,7 @@ main(int argc, char* argv[])
 
     int fd = open(argv[1], FO_RDONLY | FO_NOFOLLOW);
     if (fd < 0) {
-        printf("fail to open %d\n", fd);
+        printf("fail to open %d\n", errno);
         return 1;
     }
 
@@ -28,23 +29,22 @@ main(int argc, char* argv[])
     printf("File: %s ", argv[1]);
 
     char* ftype = "directory";
-    int mode = stat.mode;
-    if ((mode & F_MDEV)) {
-        if (!((mode & F_SEQDEV) ^ F_SEQDEV)) {
-            ftype = "sequential device";
-        } else if (!((mode & F_VOLDEV) ^ F_VOLDEV)) {
+    int mode = stat.st_mode >> 16;
+    if ((mode & F_DEV)) {
+        ftype = "mappable (sequential) device";
+
+        if (!((mode & F_SVDEV) ^ F_SVDEV)) {
             ftype = "volumetric device";
-        } else {
-            ftype = "regular device";
         }
-    } else if ((mode & F_MSLNK)) {
+
+    } else if ((mode & F_SYMLINK)) {
         if (readlinkat(fd, NULL, buf, 256) < 0) {
             printf("fail to readlink %d\n", errno);
         } else {
             printf("-> %s", buf);
         }
         ftype = "symbolic link";
-    } else if ((mode & F_MFILE)) {
+    } else if (mode == F_FILE) {
         ftype = "regular file";
     }
 
@@ -54,16 +54,25 @@ main(int argc, char* argv[])
            stat.st_blocks,
            stat.st_blksize,
            stat.st_ioblksize);
-    printf("Inode: %d;  ", stat.st_ino);
 
     dev_t* dev;
-    if (!(stat.mode & F_MDEV)) {
+    if (!(mode & F_DEV)) {
         dev = &stat.st_dev;
     } else {
         dev = &stat.st_rdev;
     }
+    printf("Device: %xh:%xh@%d;  Inode: %d;  Links: %d\n", 
+           dev->meta, dev->unique, dev->index,
+           stat.st_ino, stat.st_nlink);
+
+    printf("Access: 0%o;  Uid: %d;  Gid: %d\n",
+           stat.st_mode & 0xffff,
+           stat.st_uid,
+           stat.st_gid);
 
-    printf("Device: %xh:%xh@%d;\n", dev->meta, dev->unique, dev->index);
+    printf("Access: %lu\n", stat.st_atim);
+    printf("Modify: %lu\n", stat.st_mtim);
+    printf("Create: %lu\n", stat.st_ctim);
 
     close(fd);
     return 0;