1 files changed, 53 insertions, 0 deletions
diff --git a/lib/dpkg/options-parsers.c b/lib/dpkg/options-parsers.c
new file mode 100644
index 0000000..de5bf69
--- /dev/null
+++ b/lib/dpkg/options-parsers.c
@@ -0,0 +1,53 @@
+/*
+ * libdpkg - Debian packaging suite library routines
+ * options-parsers.c - command-line options parser helpers
+ *
+ * Copyright © 2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/error.h>
+#include <dpkg/pkg-spec.h>
+#include <dpkg/options.h>
+
+/**
+ * Parse an argument as a package name.
+ *
+ * The string is parsed as a singleton package name, and a #pkginfo instance
+ * is returned.
+ *
+ * @param cmd  The command information structure currently parsed.
+ * @param name The package name argument
+ *
+ * @return A package instance.
+ */
+struct pkginfo *
+dpkg_options_parse_pkgname(const struct cmdinfo *cmd, const char *name)
+{
+	struct pkginfo *pkg;
+	struct dpkg_error err;
+
+	pkg = pkg_spec_parse_pkg(name, &err);
+	if (pkg == NULL)
+		badusage(_("--%s needs a valid package name but '%.250s' is not: %s"),
+		         cmd->olong, name, err.str);
+
+	return pkg;
+}