diff options
Diffstat (limited to '03_exercise/echo_server/client.c')
-rw-r--r-- | 03_exercise/echo_server/client.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/03_exercise/echo_server/client.c b/03_exercise/echo_server/client.c new file mode 100644 index 0000000..a664221 --- /dev/null +++ b/03_exercise/echo_server/client.c @@ -0,0 +1,47 @@ + +#include <stdio.h> +#include <stdlib.h> + +#include <unistd.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> + +static inline void die(const char* msg) +{ + perror(msg); + exit(-1); +} + +int main() +{ + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = htons(8000), + .sin_addr.s_addr = inet_addr("127.0.0.1") + }; + char buf[256]; + int cfd; + + if ((cfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) + die("Couldn't open the socket"); + + if (connect(cfd, (struct sockaddr*) &addr, sizeof(addr)) < 0) + die("Couldn't connect to socket"); + + for (int i = 0; i < 5; ++i) + { + if (write(cfd, "Ping", 4) < 0) + die("Couldn't send message"); + + printf("[send] Ping\n"); + + if (read(cfd, buf, sizeof(buf)) < 0) + die("Couldn't receive message"); + + printf("[recv] %s\n", buf); + } + + close(cfd); + return 0; +} |