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(copy_internal): When link fails because of an

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existing destination file, unlink that file and try again.
This commit is contained in:
Jim Meyering
2003-02-28 21:36:18 +00:00
parent 1fce29ae93
commit a1d2e330ec
1 changed files with 26 additions and 8 deletions
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34
src/copy.c
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@@ -1,5 +1,5 @@
/* copy.c -- core functions for copying files and directories /* copy.c -- core functions for copying files and directories
Copyright (C) 89, 90, 91, 1995-2002 Free Software Foundation. Copyright (C) 89, 90, 91, 1995-2003 Free Software Foundation.
This program is free software; you can redistribute it and/or modify This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by it under the terms of the GNU General Public License as published by
@@ -1110,14 +1110,32 @@ copy_internal (const char *src_path, const char *dst_path,
goto un_backup; goto un_backup;
} }
if (link (earlier_file, dst_path)) {
{ int link_failed;
error (0, errno, _("cannot create hard link %s to %s"),
quote_n (0, dst_path), quote_n (1, earlier_file));
goto un_backup;
}
return 0; link_failed = link (earlier_file, dst_path);
/* If the link failed because of an existing destination,
remove that file and then call link again. */
if (link_failed && errno == EEXIST)
{
if (unlink (dst_path))
{
error (0, errno, _("cannot remove %s"), quote (dst_path));
goto un_backup;
}
link_failed = link (earlier_file, dst_path);
}
if (link_failed)
{
error (0, errno, _("cannot create hard link %s to %s"),
quote_n (0, dst_path), quote_n (1, earlier_file));
goto un_backup;
}
return 0;
}
} }
if (x->move_mode) if (x->move_mode)