X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=blob.c;h=3929ad325012c38038831f8da43b1c72efac060d;hp=823eb2446903d8f499fce8a5c653e55f976dda34;hb=f1a44355bd432964d13ab3a2bb2c5f5b0ef9dfcb;hpb=e82d74f89809c6c01f71168b3b8fdcf490e93fa7 diff --git a/blob.c b/blob.c index 823eb24..3929ad3 100644 --- a/blob.c +++ b/blob.c @@ -80,6 +80,14 @@ blob_buf_init(struct blob_buf *buf, int id) return 0; } +void +blob_buf_free(struct blob_buf *buf) +{ + free(buf->buf); + buf->buf = NULL; + buf->buflen = 0; +} + struct blob_attr * blob_new(struct blob_buf *buf, int id, int payload) { @@ -131,8 +139,30 @@ static const int blob_type_minlen[BLOB_ATTR_LAST] = { [BLOB_ATTR_INT64] = sizeof(uint64_t), }; +bool +blob_check_type(const void *ptr, int len, int type) +{ + const 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 - 1] != 0) + return false; + + return true; +} + int -blob_parse(struct blob_attr *attr, struct blob_attr **data, struct blob_attr_info *info, int max) +blob_parse(struct blob_attr *attr, struct blob_attr **data, const struct blob_attr_info *info, int max) { struct blob_attr *pos; int found = 0; @@ -148,14 +178,10 @@ blob_parse(struct blob_attr *attr, struct blob_attr **data, struct blob_attr_inf 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; } if (info[id].minlen && len < info[id].minlen)