Add working webpage for unix v4

1 files changed, 211 insertions, 0 deletions

diff --git a/jslinux-2019-12-21/tinyemu-2019-12-21/fs.h b/jslinux-2019-12-21/tinyemu-2019-12-21/fs.h
new file mode 100644
index 0000000..4c38e84
--- /dev/null
+++ b/jslinux-2019-12-21/tinyemu-2019-12-21/fs.h
@@ -0,0 +1,211 @@
+/*
+ * Filesystem abstraction
+ * 
+ * Copyright (c) 2016 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* FSQID.type */
+#define P9_QTDIR 0x80
+#define P9_QTAPPEND 0x40
+#define P9_QTEXCL 0x20
+#define P9_QTMOUNT 0x10
+#define P9_QTAUTH 0x08
+#define P9_QTTMP 0x04
+#define P9_QTSYMLINK 0x02
+#define P9_QTLINK 0x01
+#define P9_QTFILE 0x00
+
+/* mode bits */
+#define P9_S_IRWXUGO 0x01FF
+#define P9_S_ISVTX   0x0200
+#define P9_S_ISGID   0x0400
+#define P9_S_ISUID   0x0800
+
+#define P9_S_IFMT   0xF000
+#define P9_S_IFIFO  0x1000
+#define P9_S_IFCHR  0x2000
+#define P9_S_IFDIR  0x4000
+#define P9_S_IFBLK  0x6000
+#define P9_S_IFREG  0x8000
+#define P9_S_IFLNK  0xA000
+#define P9_S_IFSOCK 0xC000
+
+/* flags for lopen()/lcreate() */
+#define P9_O_RDONLY        0x00000000
+#define P9_O_WRONLY        0x00000001
+#define P9_O_RDWR          0x00000002
+#define P9_O_NOACCESS      0x00000003
+#define P9_O_CREAT         0x00000040
+#define P9_O_EXCL          0x00000080
+#define P9_O_NOCTTY        0x00000100
+#define P9_O_TRUNC         0x00000200
+#define P9_O_APPEND        0x00000400
+#define P9_O_NONBLOCK      0x00000800
+#define P9_O_DSYNC         0x00001000
+#define P9_O_FASYNC        0x00002000
+#define P9_O_DIRECT        0x00004000
+#define P9_O_LARGEFILE     0x00008000
+#define P9_O_DIRECTORY     0x00010000
+#define P9_O_NOFOLLOW      0x00020000
+#define P9_O_NOATIME       0x00040000
+#define P9_O_CLOEXEC       0x00080000
+#define P9_O_SYNC          0x00100000
+
+/* for fs_setattr() */
+#define P9_SETATTR_MODE      0x00000001
+#define P9_SETATTR_UID       0x00000002
+#define P9_SETATTR_GID       0x00000004
+#define P9_SETATTR_SIZE      0x00000008
+#define P9_SETATTR_ATIME     0x00000010
+#define P9_SETATTR_MTIME     0x00000020
+#define P9_SETATTR_CTIME     0x00000040
+#define P9_SETATTR_ATIME_SET 0x00000080
+#define P9_SETATTR_MTIME_SET 0x00000100
+
+#define P9_EPERM     1
+#define P9_ENOENT    2
+#define P9_EIO       5
+#define	P9_EEXIST    17
+#define	P9_ENOTDIR   20
+#define P9_EINVAL    22
+#define	P9_ENOSPC    28
+#define P9_ENOTEMPTY 39
+#define P9_EPROTO    71
+#define P9_ENOTSUP   524
+
+typedef struct FSDevice FSDevice;
+typedef struct FSFile FSFile;
+
+typedef struct {
+    uint32_t f_bsize;
+    uint64_t f_blocks;
+    uint64_t f_bfree;
+    uint64_t f_bavail;
+    uint64_t f_files;
+    uint64_t f_ffree;
+} FSStatFS;
+
+typedef struct {
+    uint8_t type; /* P9_IFx */
+    uint32_t version;
+    uint64_t path;
+} FSQID;
+
+typedef struct {
+    FSQID qid;
+    uint32_t st_mode;
+    uint32_t st_uid;
+    uint32_t st_gid;
+    uint64_t st_nlink;
+    uint64_t st_rdev;
+    uint64_t st_size;
+    uint64_t st_blksize;
+    uint64_t st_blocks;
+    uint64_t st_atime_sec;
+    uint32_t st_atime_nsec;
+    uint64_t st_mtime_sec;
+    uint32_t st_mtime_nsec;
+    uint64_t st_ctime_sec;
+    uint32_t st_ctime_nsec;
+} FSStat;
+
+#define P9_LOCK_TYPE_RDLCK 0
+#define P9_LOCK_TYPE_WRLCK 1
+#define P9_LOCK_TYPE_UNLCK 2
+
+#define P9_LOCK_FLAGS_BLOCK 1
+#define P9_LOCK_FLAGS_RECLAIM 2
+
+#define P9_LOCK_SUCCESS 0
+#define P9_LOCK_BLOCKED 1
+#define P9_LOCK_ERROR   2
+#define P9_LOCK_GRACE   3
+
+#define FSCMD_NAME ".fscmd"
+
+typedef struct {
+    uint8_t type;
+    uint32_t flags;
+    uint64_t start;
+    uint64_t length;
+    uint32_t proc_id;
+    char *client_id;
+} FSLock;
+
+typedef void FSOpenCompletionFunc(FSDevice *fs, FSQID *qid, int err,
+                                  void *opaque);
+
+struct FSDevice {
+    void (*fs_end)(FSDevice *s);
+    void (*fs_delete)(FSDevice *s, FSFile *f);
+    void (*fs_statfs)(FSDevice *fs, FSStatFS *st);
+    int (*fs_attach)(FSDevice *fs, FSFile **pf, FSQID *qid, uint32_t uid,
+                     const char *uname, const char *aname);
+    int (*fs_walk)(FSDevice *fs, FSFile **pf, FSQID *qids,
+                   FSFile *f, int n, char **names);
+    int (*fs_mkdir)(FSDevice *fs, FSQID *qid, FSFile *f,
+                    const char *name, uint32_t mode, uint32_t gid);
+    int (*fs_open)(FSDevice *fs, FSQID *qid, FSFile *f, uint32_t flags,
+                   FSOpenCompletionFunc *cb, void *opaque);
+    int (*fs_create)(FSDevice *fs, FSQID *qid, FSFile *f, const char *name, 
+                     uint32_t flags, uint32_t mode, uint32_t gid);
+    int (*fs_stat)(FSDevice *fs, FSFile *f, FSStat *st);
+    int (*fs_setattr)(FSDevice *fs, FSFile *f, uint32_t mask,
+                      uint32_t mode, uint32_t uid, uint32_t gid,
+                      uint64_t size, uint64_t atime_sec, uint64_t atime_nsec,
+                      uint64_t mtime_sec, uint64_t mtime_nsec);
+    void (*fs_close)(FSDevice *fs, FSFile *f);
+    int (*fs_readdir)(FSDevice *fs, FSFile *f, uint64_t offset,
+                      uint8_t *buf, int count);
+    int (*fs_read)(FSDevice *fs, FSFile *f, uint64_t offset,
+            uint8_t *buf, int count);
+    int (*fs_write)(FSDevice *fs, FSFile *f, uint64_t offset,
+             const uint8_t *buf, int count);
+    int (*fs_link)(FSDevice *fs, FSFile *df, FSFile *f, const char *name);
+    int (*fs_symlink)(FSDevice *fs, FSQID *qid,
+                      FSFile *f, const char *name, const char *symgt, uint32_t gid);
+    int (*fs_mknod)(FSDevice *fs, FSQID *qid,
+                    FSFile *f, const char *name, uint32_t mode, uint32_t major,
+                    uint32_t minor, uint32_t gid);
+    int (*fs_readlink)(FSDevice *fs, char *buf, int buf_size, FSFile *f);
+    int (*fs_renameat)(FSDevice *fs, FSFile *f, const char *name, 
+                       FSFile *new_f, const char *new_name);
+    int (*fs_unlinkat)(FSDevice *fs, FSFile *f, const char *name);
+    int (*fs_lock)(FSDevice *fs, FSFile *f, const FSLock *lock);
+    int (*fs_getlock)(FSDevice *fs, FSFile *f, FSLock *lock);
+};
+
+FSDevice *fs_disk_init(const char *root_path);
+FSDevice *fs_mem_init(void);
+FSDevice *fs_net_init(const char *url, void (*start)(void *opaque), void *opaque);
+void fs_net_set_pwd(FSDevice *fs, const char *pwd);
+#ifdef EMSCRIPTEN
+void fs_import_file(const char *filename, uint8_t *buf, int buf_len);
+#endif
+void fs_export_file(const char *filename,
+                    const uint8_t *buf, int buf_len);
+void fs_end(FSDevice *fs);
+void fs_dump_cache_load(FSDevice *fs1, const char *filename);
+
+FSFile *fs_dup(FSDevice *fs, FSFile *f);
+FSFile *fs_walk_path1(FSDevice *fs, FSFile *f, const char *path,
+                      char **pname);
+FSFile *fs_walk_path(FSDevice *fs, FSFile *f, const char *path);