dpkg: Fallback to rename(2) instead of link(2) for systems not supporting hard linkin...

[termux-packages] / packages / dpkg / archives_dont_chown.patch

diff -u -r ../dpkg-1.17.25/src/archives.c ./src/archives.c
--- ../dpkg-1.17.25/src/archives.c	2015-04-09 17:40:47.000000000 -0400
+++ ./src/archives.c	2015-07-09 20:56:04.604894782 -0400
@@ -359,8 +359,10 @@
             namenode->statoverride->uid,
             namenode->statoverride->gid,
             namenode->statoverride->mode);
+#ifndef __ANDROID__
     if (fchown(fd, st->uid, st->gid))
       ohshite(_("error setting ownership of `%.255s'"), te->name);
+#endif
     if (fchmod(fd, st->mode & ~S_IFMT))
       ohshite(_("error setting permissions of `%.255s'"), te->name);
 
@@ -472,11 +474,15 @@
     return; /* Already handled using the file descriptor. */
 
   if (te->type == TAR_FILETYPE_SYMLINK) {
+#ifndef __ANDROID__
     if (lchown(path, st->uid, st->gid))
       ohshite(_("error setting ownership of symlink `%.255s'"), path);
+#endif
   } else {
+#ifndef __ANDROID__
     if (chown(path, st->uid, st->gid))
       ohshite(_("error setting ownership of `%.255s'"), path);
+#endif
     if (chmod(path, st->mode & ~S_IFMT))
       ohshite(_("error setting permissions of `%.255s'"), path);
   }
@@ -1148,14 +1154,18 @@
       varbuf_end_str(&symlinkfn);
       if (symlink(symlinkfn.buf,fnametmpvb.buf))
         ohshite(_("unable to make backup symlink for `%.255s'"), ti->name);
+#ifndef __ANDROID__
       if (lchown(fnametmpvb.buf,stab.st_uid,stab.st_gid))
         ohshite(_("unable to chown backup symlink for `%.255s'"), ti->name);
+#endif
       tarobject_set_se_context(fnamevb.buf, fnametmpvb.buf, stab.st_mode);
     } else {
       debug(dbg_eachfiledetail, "tarobject nondirectory, 'link' backup");
       if (link(fnamevb.buf,fnametmpvb.buf))
-        ohshite(_("unable to make backup link of `%.255s' before installing new version"),
-                ti->name);
+        /* Termux modification: Try with rename(2) for systems not supporting hardlinks. */
+        if (rename(fnamevb.buf,fnametmpvb.buf))
+          ohshite(_("unable to make backup link of `%.255s' before installing new version"),
+                  ti->name);
     }
   }