mainscnt/mains-frequency-counter-stm32
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fix

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This commit is contained in:
Wolfgang Hottgenroth 2021-02-08 16:00:36 +01:00
parent be9d042d64
commit 613d8e6d6c
2 changed files with 10 additions and 5 deletions
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1
sink/.gitignore vendored Normal file
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@ -0,0 +1 @@
build/

12
sink/sink20169.c
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@ -1,12 +1,14 @@
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
int main() {
int sockfd;
struct sockaddr servaddr;
struct sockaddr_in servaddr, cliaddr;
socklen_t cliaddrlen = sizeof(cliaddr);
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
@ -15,13 +17,15 @@ int main() {
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(20169);
bind(sockfd, (SA*) &servaddr, sizeof(servaddr));
bind(sockfd, (const struct sockaddr *) &servaddr, sizeof(servaddr));
uint8_t buf[1024];
while (1) {
int n = recv(sockfd, buf, sizeof(buf), 0);
printf("received %d octets\n");
int n = recvfrom(sockfd, buf, sizeof(buf), 0,
(struct sockaddr *) &cliaddr, &cliaddrlen);
printf("received %d octets from %04x\n",
n, cliaddr.sin_addr.s_addr);
}
}