From 4ff184689bf3d22b01c0d00c2bf6bf9595ff9b48 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Mon, 6 Aug 2018 08:53:28 +0200 Subject: qobject: New qobject_from_vjsonf_nofail(), qdict_from_vjsonf_nofail() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Every printf()-like function sooner or later needs its vprintf()-like buddy. The next commit will need qobject_from_jsonf_nofail()'s buddy, and qdict_from_jsonf_nofail()'s buddy will be used later in this series. Add both. Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Eric Blake Message-Id: <20180806065344.7103-8-armbru@redhat.com> --- qobject/qjson.c | 44 +++++++++++++++++++++++++++++++++++++------- 1 file changed, 37 insertions(+), 7 deletions(-) (limited to 'qobject/qjson.c') diff --git a/qobject/qjson.c b/qobject/qjson.c index 4a9dcff343..2e450231ff 100644 --- a/qobject/qjson.c +++ b/qobject/qjson.c @@ -59,6 +59,25 @@ QObject *qobject_from_json(const char *string, Error **errp) return qobject_from_jsonv(string, NULL, errp); } +/* + * Parse @string as JSON value with %-escapes interpolated. + * Abort on error. Do not use with untrusted @string. + * Return the resulting QObject. It is never null. + */ +QObject *qobject_from_vjsonf_nofail(const char *string, va_list ap) +{ + va_list ap_copy; + QObject *obj; + + /* va_copy() is needed when va_list is an array type */ + va_copy(ap_copy, ap); + obj = qobject_from_jsonv(string, &ap_copy, &error_abort); + va_end(ap_copy); + + assert(obj); + return obj; +} + /* * Parse @string as JSON value with %-escapes interpolated. * Abort on error. Do not use with untrusted @string. @@ -70,13 +89,26 @@ QObject *qobject_from_jsonf_nofail(const char *string, ...) va_list ap; va_start(ap, string); - obj = qobject_from_jsonv(string, &ap, &error_abort); + obj = qobject_from_vjsonf_nofail(string, ap); va_end(ap); - assert(obj); return obj; } +/* + * Parse @string as JSON object with %-escapes interpolated. + * Abort on error. Do not use with untrusted @string. + * Return the resulting QDict. It is never null. + */ +QDict *qdict_from_vjsonf_nofail(const char *string, va_list ap) +{ + QDict *qdict; + + qdict = qobject_to(QDict, qobject_from_vjsonf_nofail(string, ap)); + assert(qdict); + return qdict; +} + /* * Parse @string as JSON object with %-escapes interpolated. * Abort on error. Do not use with untrusted @string. @@ -84,15 +116,13 @@ QObject *qobject_from_jsonf_nofail(const char *string, ...) */ QDict *qdict_from_jsonf_nofail(const char *string, ...) { - QDict *obj; + QDict *qdict; va_list ap; va_start(ap, string); - obj = qobject_to(QDict, qobject_from_jsonv(string, &ap, &error_abort)); + qdict = qdict_from_vjsonf_nofail(string, ap); va_end(ap); - - assert(obj); - return obj; + return qdict; } typedef struct ToJsonIterState -- cgit v1.2.3