read_wim_header(): Check return value of lseek()

[wimlib] / src / win32_capture.c

diff --git a/src/win32_capture.c b/src/win32_capture.c
index 6223ed26135acb26fc4da3d7d139998bc982b5f6..ad40d45287af5828cf6528e6f3cf77e2e39b8139 100644 (file)
--- a/src/win32_capture.c
+++ b/src/win32_capture.c
@@ -888,6 +888,9 @@ winnt_scan_stream(const wchar_t *path, size_t path_nchars,
                                                        sizeof(wchar_t));
                if (!ads_entry)
                        return WIMLIB_ERR_NOMEM;
+       } else if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+               /* Ignore unnamed data stream of reparse point  */
+               return 0;
        } else {
                ads_entry = NULL;
        }
@@ -1110,11 +1113,19 @@ winnt_build_dentry_tree_recursive(struct wim_dentry **root_ret,
                                        SYNCHRONIZE,
                              &h);
        if (unlikely(!NT_SUCCESS(status))) {
-               set_errno_from_nt_status(status);
-               ERROR_WITH_ERRNO("\"%ls\": Can't open file "
-                                "(status=0x%08"PRIx32")",
-                                printable_path(full_path), (u32)status);
-               ret = WIMLIB_ERR_OPEN;
+               if (status == STATUS_DELETE_PENDING) {
+                       WARNING("\"%ls\": Deletion pending; skipping file",
+                               printable_path(full_path));
+                       ret = 0;
+               } else {
+                       set_errno_from_nt_status(status);
+                       ERROR_WITH_ERRNO("\"%ls\": Can't open file "
+                                        "(status=0x%08"PRIx32")",
+                                        printable_path(full_path), (u32)status);
+                       ret = WIMLIB_ERR_OPEN;
+               }
+               /* XXX: Provide option to exclude files that fail with
+                * STATUS_SHARING_VIOLATION?  */
                goto out;
        }
 
@@ -1388,6 +1399,7 @@ win32_build_dentry_tree(struct wim_dentry **root_ret,
        int ret;
        UNICODE_STRING ntpath;
        struct winnt_scan_stats stats;
+       size_t ntpath_nchars;
 
        /* WARNING: There is no check for overflow later when this buffer is
         * being used!  But it's as long as the maximum path length understood
@@ -1406,19 +1418,24 @@ win32_build_dentry_tree(struct wim_dentry **root_ret,
        {
                ERROR("\"%ls\": unrecognized path format", root_disk_path);
                ret = WIMLIB_ERR_INVALID_PARAM;
-               goto out_free_path;
-       }
-
-       params->capture_root_nchars = ntpath.Length / sizeof(wchar_t);
-       wmemcpy(path, ntpath.Buffer, params->capture_root_nchars);
-       path[params->capture_root_nchars] = L'\0';
+       } else {
+               ntpath_nchars = ntpath.Length / sizeof(wchar_t);
+               wmemcpy(path, ntpath.Buffer, ntpath_nchars);
+               path[ntpath_nchars] = L'\0';
 
+               params->capture_root_nchars = ntpath_nchars;
+               if (path[ntpath_nchars - 1] == L'\\')
+                       params->capture_root_nchars--;
+               ret = 0;
+       }
        HeapFree(GetProcessHeap(), 0, ntpath.Buffer);
+       if (ret)
+               goto out_free_path;
 
        memset(&stats, 0, sizeof(stats));
 
        ret = winnt_build_dentry_tree_recursive(root_ret, NULL,
-                                               path, params->capture_root_nchars,
+                                               path, ntpath_nchars,
                                                L"", 0, params, &stats, 0);
 out_free_path:
        FREE(path);