X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=blob.c;h=cafd74cfa5d0c04eac984dee0ee92c55c3489ed8;hp=3bd69fac04d43043172b7bd6032dc9529974c049;hb=f2b9272e0b427545e34b27ba4be4a5b1bbc6ad69;hpb=ec593913f4a5ee31d4a295708ba91beb0d439ffe diff --git a/blob.c b/blob.c index 3bd69fa..cafd74c 100644 --- a/blob.c +++ b/blob.c @@ -131,6 +131,28 @@ static const int blob_type_minlen[BLOB_ATTR_LAST] = { [BLOB_ATTR_INT64] = sizeof(uint64_t), }; +bool +blob_check_type(void *ptr, int len, int type) +{ + char *data = ptr; + + if (type >= BLOB_ATTR_LAST) + return false; + + if (type >= BLOB_ATTR_INT8 && type <= BLOB_ATTR_INT64) { + if (len != blob_type_minlen[type]) + return false; + } else { + if (len < blob_type_minlen[type]) + return false; + } + + if (type == BLOB_ATTR_STRING && data[len] != 0) + return false; + + return true; +} + int blob_parse(struct blob_attr *attr, struct blob_attr **data, const struct blob_attr_info *info, int max) { @@ -142,27 +164,18 @@ blob_parse(struct blob_attr *attr, struct blob_attr **data, const struct blob_at blob_for_each_attr(pos, attr, rem) { int id = blob_id(pos); int len = blob_len(pos); - char *pdata; if (id >= max) continue; if (info) { int type = info[id].type; + if (type < BLOB_ATTR_LAST) { - if (type >= BLOB_ATTR_INT8 && type <= BLOB_ATTR_INT64) { - if (len != blob_type_minlen[type]) - continue; - } else { - if (len < blob_type_minlen[type]) - continue; - } + if (!blob_check_type(blob_data(pos), len, type)) + continue; } - pdata = blob_data(pos); - if (type == BLOB_ATTR_STRING && pdata[len] != 0) - continue; - if (info[id].minlen && len < info[id].minlen) continue;