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working udp client

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This commit is contained in:
Arthur-Coppey 2021-10-18 13:53:21 +02:00
parent 7ad0e7ad56
commit 726481cc8f
2 changed files with 8 additions and 2 deletions
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9
client/client.c
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@ -4,6 +4,8 @@
#include "client.h" #include "client.h"
extern int errno;
int tcp() { int tcp() {
struct sockaddr_in server; struct sockaddr_in server;
int sock; int sock;
@ -50,6 +52,7 @@ int tcp() {
int udp() { int udp() {
struct sockaddr_in server; struct sockaddr_in server;
int sock; int sock;
unsigned long addressLength = sizeof server;
int proto = IPPROTO_UDP; int proto = IPPROTO_UDP;
enum __socket_type socketType = SOCK_DGRAM; enum __socket_type socketType = SOCK_DGRAM;
@ -66,15 +69,17 @@ int udp() {
puts("socket created"); puts("socket created");
char *payload = "I dream of sushi"; char *payload = "I dream of sushi";
if (sendto(sock, payload, strlen(payload), 0, (const struct sockaddr *) &server, sizeof server) < 0) { if (sendto(sock, payload, strlen(payload), 0, (const struct sockaddr *) &server, addressLength) < 0) {
puts("error while sending payload"); puts("error while sending payload");
perror("sendto");
return 3; return 3;
} }
puts("payload sent"); puts("payload sent");
char response[2048]; char response[2048];
if (recvfrom(sock, response, 2048, 0, (struct sockaddr *) &server, (socklen_t *) sizeof server) < 0) { if (recvfrom(sock, response, 2048, 0, (struct sockaddr *) &server, (socklen_t *) &addressLength) < 0) {
puts("receive failed"); puts("receive failed");
perror("recvfrom");
return 4; return 4;
} }
printf("server response : %s\n", response); printf("server response : %s\n", response);

1
client/client.h
View File

@ -11,6 +11,7 @@
#include <string.h> #include <string.h>
#include <stdio.h> #include <stdio.h>
#include <unistd.h> #include <unistd.h>
#include <errno.h>
int tcp(); int tcp();