From 22dca5725451c62f9e1850db5b834eb5689f3be7 Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Thu, 14 Dec 2017 14:42:06 -0500
Subject: [PATCH] core,passwd: Use new libostree hardlink-break API

The code moved into libostree here:
https://github.com/ostreedev/ostree/pull/1378
---
 src/libpriv/rpmostree-core.c        |  6 +--
 src/libpriv/rpmostree-passwd-util.c |  4 +-
 src/libpriv/rpmostree-util.c        | 61 -----------------------------
 src/libpriv/rpmostree-util.h        |  7 ----
 4 files changed, 5 insertions(+), 73 deletions(-)

diff --git a/src/libpriv/rpmostree-core.c b/src/libpriv/rpmostree-core.c
index 7138d50a1d..258577ed30 100644
--- a/src/libpriv/rpmostree-core.c
+++ b/src/libpriv/rpmostree-core.c
@@ -2523,8 +2523,8 @@ break_hardlinks_at (int             dfd,
         return FALSE;
       if (dent == NULL)
         break;
-      if (!rpmostree_break_hardlink (dfd_iter.fd, dent->d_name, 0,
-                                     cancellable, error))
+      if (!ostree_break_hardlink (dfd_iter.fd, dent->d_name, FALSE,
+                                  cancellable, error))
         return FALSE;
     }
 
@@ -3008,7 +3008,7 @@ apply_rpmfi_overrides (RpmOstreeContext *self,
 
       if (!S_ISDIR (stbuf.st_mode))
         {
-          if (!rpmostree_break_hardlink (tmprootfs_dfd, fn, 0, cancellable, error))
+          if (!ostree_break_hardlink (tmprootfs_dfd, fn, FALSE, cancellable, error))
             return FALSE;
         }
 
diff --git a/src/libpriv/rpmostree-passwd-util.c b/src/libpriv/rpmostree-passwd-util.c
index fd10491986..011e01de29 100644
--- a/src/libpriv/rpmostree-passwd-util.c
+++ b/src/libpriv/rpmostree-passwd-util.c
@@ -1071,8 +1071,8 @@ rpmostree_passwd_prepare_rpm_layering (int                rootfs_dfd,
       if (errno == ENOENT)
         continue;
 
-      if (!rpmostree_break_hardlink (rootfs_dfd, src, GLNX_FILE_COPY_NOXATTRS,
-                                     cancellable, error))
+      if (!ostree_break_hardlink (rootfs_dfd, src, TRUE,
+                                  cancellable, error))
         return FALSE;
     }
 
diff --git a/src/libpriv/rpmostree-util.c b/src/libpriv/rpmostree-util.c
index 8b08e2b411..4882e4d893 100644
--- a/src/libpriv/rpmostree-util.c
+++ b/src/libpriv/rpmostree-util.c
@@ -731,67 +731,6 @@ rpmostree_stdout_is_journal (void)
   return stdout_is_socket;
 }
 
-/* Given a path to a file/symlink, make a copy (reflink if possible)
- * of it if it's a hard link.  We need this in a few places right now:
- *  - The RPM database
- *  - SELinux policy "denormalization" where a label changes
- *  - Working around shadow-utils opening /etc/passwd with O_RDWR
- *  - Upon applying rpmfi overrides during assembly
- */
-gboolean
-rpmostree_break_hardlink (int           dfd,
-                          const char   *path,
-                          GLnxFileCopyFlags copyflags,
-                          GCancellable *cancellable,
-                          GError      **error)
-{
-   struct stat stbuf;
-
-  if (!glnx_fstatat (dfd, path, &stbuf, AT_SYMLINK_NOFOLLOW, error))
-    return FALSE;
-
-  if (!S_ISLNK (stbuf.st_mode) && !S_ISREG (stbuf.st_mode))
-    return glnx_throw (error, "Unsupported type for entry '%s'", path);
-
-  if (stbuf.st_nlink > 1)
-    {
-      guint count;
-      gboolean copy_success = FALSE;
-      char *path_tmp = glnx_strjoina (path, ".XXXXXX");
-
-      for (count = 0; count < 100; count++)
-        {
-          g_autoptr(GError) tmp_error = NULL;
-
-          glnx_gen_temp_name (path_tmp);
-
-          if (!glnx_file_copy_at (dfd, path, &stbuf, dfd, path_tmp, copyflags,
-                                  cancellable, &tmp_error))
-            {
-              if (g_error_matches (tmp_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
-                continue;
-              g_propagate_error (error, g_steal_pointer (&tmp_error));
-              return FALSE;
-            }
-
-          copy_success = TRUE;
-          break;
-        }
-
-      if (!copy_success)
-        {
-          g_set_error (error, G_IO_ERROR, G_IO_ERROR_EXISTS,
-                       "Exceeded limit of %u file creation attempts", count);
-          return FALSE;
-        }
-
-      if (!glnx_renameat (dfd, path_tmp, dfd, path, error))
-        return FALSE;
-    }
-
-  return TRUE;
-}
-
 /* Given the result of rpm_ostree_db_diff(), print it. */
 void
 rpmostree_diff_print (GPtrArray *removed,
diff --git a/src/libpriv/rpmostree-util.h b/src/libpriv/rpmostree-util.h
index 0f596f877f..f6d39db009 100644
--- a/src/libpriv/rpmostree-util.h
+++ b/src/libpriv/rpmostree-util.h
@@ -130,13 +130,6 @@ rpmostree_cache_branch_to_nevra (const char *cachebranch);
 char *
 rpmostree_commit_content_checksum (GVariant *commit);
 
-gboolean
-rpmostree_break_hardlink (int           dfd,
-                          const char   *path,
-                          GLnxFileCopyFlags copyflags,
-                          GCancellable *cancellable,
-                          GError      **error);
-
 /* https://github.com/ostreedev/ostree/pull/1132 */
 typedef struct {
   gboolean initialized;