Add --noacls options and set dwDesiredAccess more appropriately

[wimlib] / src / symlink.c

diff --git a/src/symlink.c b/src/symlink.c
index 0692e7d41bf5359a12bf61800a800e9d03390dff..31d4e7c57a25d866c1a8e2fa2e40180fde310f3a 100644 (file)
--- a/src/symlink.c
+++ b/src/symlink.c
@@ -5,7 +5,7 @@
  */
 
 /*
- * Copyright (C) 2012, 2013 Biggers
+ * Copyright (C) 2012, 2013 Eric Biggers
  *
  * This file is part of wimlib, a library for working with WIM files.
  *
@@ -29,6 +29,10 @@
 #include "sha1.h"
 #include <errno.h>
 
+/* None of this file is ever needed in Win32 builds because the reparse point
+ * buffers are not parsed. */
+#if !defined(__WIN32__) && !defined(WITH_FUSE)
+
 /*
  * Find the symlink target of a symbolic link or junction point in the WIM.
  *
@@ -40,20 +44,20 @@
  * dentry, and we already know the reparse tag length from the lookup table
  * entry resource length.
  */
-static ssize_t get_symlink_name(const u8 *resource, size_t resource_len,
-                               char *buf, size_t buf_len,
-                               u32 reparse_tag)
+static ssize_t
+get_symlink_name(const void *resource, size_t resource_len, mbchar *buf,
+                size_t buf_len, u32 reparse_tag)
 {
        const u8 *p = resource;
        u16 substitute_name_offset;
        u16 substitute_name_len;
        u16 print_name_offset;
        u16 print_name_len;
-       char *link_target;
+       mbchar *link_target;
        size_t link_target_len;
        ssize_t ret;
        unsigned header_size;
-       char *translated_target;
+       mbchar *translated_target;
        bool is_absolute;
        u32 flags;
 
@@ -78,7 +82,7 @@ static ssize_t get_symlink_name(const u8 *resource, size_t resource_len,
        if (header_size + substitute_name_offset + substitute_name_len > resource_len)
                return -EIO;
 
-       ret = utf16_to_utf8((const char *)p + substitute_name_offset,
+       ret = utf16le_to_mbs((const utf16lechar*)(p + substitute_name_offset),
                            substitute_name_len,
                            &link_target, &link_target_len);
        if (ret == WIMLIB_ERR_INVALID_UTF16_STRING)
@@ -128,40 +132,41 @@ out:
        return ret;
 }
 
-static int make_symlink_reparse_data_buf(const char *symlink_target,
-                                        size_t *len_ret, void **buf_ret)
+static int
+make_symlink_reparse_data_buf(const mbchar *symlink_target,
+                             size_t *len_ret, void **buf_ret)
 {
-       size_t utf8_len = strlen(symlink_target);
-       char *name_utf16;
-       size_t utf16_len;
+       utf16lechar *name_utf16le;
+       size_t name_utf16le_nbytes;
        int ret;
 
-       ret = utf8_to_utf16(symlink_target, utf8_len,
-                           &name_utf16, &utf16_len);
+       ret = mbs_to_utf16le(symlink_target, strlen(symlink_target),
+                            &name_utf16le, &name_utf16le_nbytes);
        if (ret != 0)
                return ret;
 
-       for (size_t i = 0; i < utf16_len / 2; i++)
-               if (((u16*)name_utf16)[i] == cpu_to_le16('/'))
-                       ((u16*)name_utf16)[i] = cpu_to_le16('\\');
-       size_t len = 12 + utf16_len * 2;
+       for (size_t i = 0; i < name_utf16le_nbytes / 2; i++)
+               if (name_utf16le[i] == cpu_to_le16('/'))
+                       name_utf16le[i] = cpu_to_le16('\\');
+
+       size_t len = 12 + name_utf16le_nbytes * 2;
        void *buf = MALLOC(len);
        if (buf) {
                u8 *p = buf;
-               p = put_u16(p, utf16_len); /* Substitute name offset */
-               p = put_u16(p, utf16_len); /* Substitute name length */
+               p = put_u16(p, name_utf16le_nbytes); /* Substitute name offset */
+               p = put_u16(p, name_utf16le_nbytes); /* Substitute name length */
                p = put_u16(p, 0); /* Print name offset */
-               p = put_u16(p, utf16_len); /* Print name length */
+               p = put_u16(p, name_utf16le_nbytes); /* Print name length */
                p = put_u32(p, 1); /* flags: 0 iff *full* target, including drive letter??? */
-               p = put_bytes(p, utf16_len, (const u8*)name_utf16);
-               p = put_bytes(p, utf16_len, (const u8*)name_utf16);
+               p = put_bytes(p, name_utf16le_nbytes, name_utf16le);
+               p = put_bytes(p, name_utf16le_nbytes, name_utf16le);
                *len_ret = len;
                *buf_ret = buf;
                ret = 0;
        } else {
                ret = WIMLIB_ERR_NOMEM;
        }
-       FREE(name_utf16);
+       FREE(name_utf16le);
        return ret;
 }
 
@@ -171,8 +176,9 @@ static int make_symlink_reparse_data_buf(const char *symlink_target,
  * WIM_IO_REPARSE_TAG_SYMLINK), or it may be a junction point (reparse tag
  * WIM_IO_REPARSE_TAG_MOUNT_POINT).
  */
-ssize_t inode_readlink(const struct wim_inode *inode, char *buf, size_t buf_len,
-                      const WIMStruct *w, int read_resource_flags)
+ssize_t
+inode_readlink(const struct wim_inode *inode, mbchar *buf, size_t buf_len,
+              const WIMStruct *w, int read_resource_flags)
 {
        const struct wim_lookup_table_entry *lte;
        int ret;
@@ -205,9 +211,11 @@ ssize_t inode_readlink(const struct wim_inode *inode, char *buf, size_t buf_len,
  *
  * On failure @dentry and @lookup_table are not modified.
  */
-int inode_set_symlink(struct wim_inode *inode, const char *target,
-                     struct wim_lookup_table *lookup_table,
-                     struct wim_lookup_table_entry **lte_ret)
+int
+inode_set_symlink(struct wim_inode *inode,
+                 const mbchar *target,
+                 struct wim_lookup_table *lookup_table,
+                 struct wim_lookup_table_entry **lte_ret)
 
 {
        int ret;
@@ -262,3 +270,5 @@ out_free_symlink_buf:
        FREE(symlink_buf);
        return ret;
 }
+
+#endif /* !defined(__WIN32__) && !defined(WITH_FUSE) */