Function create_tempfile_mode

tempfile.c:137–162

Make sure errno contains a meaningful value on error */

/* Make sure errno contains a meaningful value on error */
struct tempfile *create_tempfile_mode(const char *path, int mode)
{
	struct tempfile *tempfile = new_tempfile();

	strbuf_add_absolute_path(&tempfile->filename, path);
	tempfile->fd = open(tempfile->filename.buf,
			    O_RDWR | O_CREAT | O_EXCL | O_CLOEXEC, mode);
	if (O_CLOEXEC && tempfile->fd < 0 && errno == EINVAL)
		/* Try again w/o O_CLOEXEC: the kernel might not support it */
		tempfile->fd = open(tempfile->filename.buf,
				    O_RDWR | O_CREAT | O_EXCL, mode);
	if (tempfile->fd < 0) {
		deactivate_tempfile(tempfile);
		return NULL;
	}
	activate_tempfile(tempfile);
	if (adjust_shared_perm(the_repository, tempfile->filename.buf)) {
		int save_errno = errno;
		error("cannot fix permission bits on %s", tempfile->filename.buf);
		delete_tempfile(&tempfile);
		errno = save_errno;
		return NULL;
	}

	return tempfile;
}

struct tempfile *register_tempfile(const char *path)
{