solve:
almost the Hexadecimal string string->float
such as:
code:float num;
const char *s= "0x123p32lala";
char *p;
num=strtof(s,&p);
printf("num is %f\n",num);
printf("str is %s\n",p);
output:num is 1249835483136.000000
str is lala
but if the input number is much big;
like:
code:const char *s2= "0x999999p100";
num=strtof(s2,&p);
printf("num is %f\n",num);
printf("str is %s\n",p);
corrent : num is 12760587998944832242938906880669384704.000000
real: num is 12760587998944800000000000000000000000.000000
it didn't have enough precision
The following APIs need to be overriden by the arch after enabling
CONFIG_NET_ARCH_CHKSUM, move these functions to the common header
file to avoid prototype conflicts
uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len);
uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
uint16_t ipv4_upperlayer_chksum(FAR struct net_driver_s *dev, uint8_t proto);
uint16_t ipv6_upperlayer_chksum(FAR struct net_driver_s *dev,
uint8_t proto, unsigned int iplen);
uint16_t ipv4_chksum(FAR struct ipv4_hdr_s *ipv4);
Signed-off-by: chao an <anchao@xiaomi.com>
TX poll callback in device lo(loopback) can be replaced by devif_loopback()
from devif_poll() hook, remove duplicate code to reuse this logic
Signed-off-by: chao an <anchao@xiaomi.com>
Add link layer length in loopback is unnecessary after below change checkin:
| commit 6fa60627eb
| Author: chao an <anchao@xiaomi.com>
| Date: Sun Nov 27 02:13:21 2022 +0800
|
| net/devif/ip: build l2 header on the IP layer
|
| Signed-off-by: chao an <anchao@xiaomi.com>
Signed-off-by: chao an <anchao@xiaomi.com>
fix build break if enable CONFIG_NET_IPv6 only
In file included from tcp/tcp_sendfile.c:38:
tcp/tcp_sendfile.c: In function ‘sendfile_eventhandler’:
tcp/tcp_sendfile.c:173:27: error: ‘struct tcp_conn_s’ has no member named ‘domain’
173 | DEBUGASSERT(conn->domain == PF_INET6);
| ^~
Signed-off-by: chao an <anchao@xiaomi.com>
Summary:
- This commit adds virtio-mmio and virtio-net drivers
Impact:
- None (new drivers)
Testing:
- Tested with rv-virt (will be updated later) with QEMU-7.1
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
It is enought to only checking the buflen's avaiable or not.
(total size means total copied size)
Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com>
Summary:
- This commit fixes the build error in cxd56_crashdump.c
regressed by https://github.com/apache/nuttx/pull/7707
Impact:
- None
Tesing:
- Tested with spresense:wifi
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
inet/ipv4_setsockopt.c: In function ‘ipv4_setsockopt’:
inet/ipv4_setsockopt.c:200:19: error: invalid use of undefined type ‘struct udp_conn_s’
200 | conn->ttl = ttl;
| ^~
inet/ipv4_setsockopt.c:223:19: error: invalid use of undefined type ‘struct udp_conn_s’
223 | conn->flags |= _UDP_FLAG_PKTINFO;
| ^~
inet/ipv4_setsockopt.c:223:30: error: ‘_UDP_FLAG_PKTINFO’ undeclared (first use in this function)
223 | conn->flags |= _UDP_FLAG_PKTINFO;
| ^~~~~~~~~~~~~~~~~
inet/ipv4_setsockopt.c:223:30: note: each undeclared identifier is reported only once for each function it appears in
inet/ipv4_setsockopt.c:227:19: error: invalid use of undefined type ‘struct udp_conn_s’
227 | conn->flags &= ~_UDP_FLAG_PKTINFO;
Signed-off-by: ligd <liguiding1@xiaomi.com>
ARP support is only built if the Ethernet link layer is supported.
Continue and send the ARP request only if this device uses the
Ethernet link layer protocol.
Signed-off-by: chao an <anchao@xiaomi.com>
