Hi Hui, Yup, that’s a ‘known’ unformat trap. When unformatting integers, use u32.
Florin > On Sep 19, 2017, at 8:33 PM, <[email protected]> <[email protected]> > wrote: > > hi all: > > we found some common using issues about the use of CLI unformat, as follow: > > > > u16 out_port = 0; > > u32 vrf_id = 0, protocol; > > else if (unformat (line_input, "%U %u", unformat_ip4_address, > > &out_addr, &out_port)) > > > > when inputing u16 or u8 type param(not u32)， the local variable which behind > of "out_port" in stack will be overwrited, is that right? is there some Notes > about this? > > I think the bellow code maybe cause that issue. > > unformat->va_unformat->do_percent->unformat_integer-> *(u32 *) v = value; > > > > > > > > > > > > 王辉 wanghui > > > > IT开发工程师 IT Development Engineer > 虚拟化南京四部/无线研究院/无线产品经营部 NIV Nanjing Dept. IV/Wireless Product R＆D > Institute/Wireless Product Operation Division > > > > > _______________________________________________ > vpp-dev mailing list > [email protected] > https://lists.fd.io/mailman/listinfo/vpp-dev
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