TCP/IP server & send file sample
sample code
#include <unistd.h>
#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <string.h>
#include <fcntl.h>
#define PORT 8080
void send_image(int socket)
{
FILE *picture;
int size, stat, read_size;
char send_buffer[320*240];
picture = fopen("myimage.rgb","r");
fseek(picture, 0, SEEK_END);
size = ftell(picture);
fseek(picture, 0, SEEK_SET);
read_size = fread(send_buffer, 1, sizeof(send_buffer)-1, picture);
do{
stat = write(socket, send_buffer, read_size);
}while(stat < 0);
}
int main(int argc, char const *argv[])
{
int server_fd, new_socket, valread;
struct sockaddr_in address;
int opt = 1;
int addrlen = sizeof(address);
char buffer[1024] = {0};
char image[320*240] = {0,};
char data[10]="hello test";
int i =0;
for(i=0; i < 320*240; i++)
image[i]=i%255;
if((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0 )
{
perror("socket failed");
exit(EXIT_FAILURE);
}
if(setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, & opt, sizeof(opt)))
{
perror("setsockopt");
exit(EXIT_FAILURE);
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(PORT);
if(bind(server_fd, (struct sockaddr *)&address, sizeof(address))<0)
{
perror("bind failed");
exit(EXIT_FAILURE);
}
printf("server bind \n");
if(listen(server_fd, 3)< 0)
{
perror("listen");
exit(EXIT_FAILURE);
}
printf("server listen \n");
if((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen))<0)
{
printf("server accept failed....\n");
exit(0);
}
printf("server accept \n");
int read_size = 0;
while(1)
{
read_size = read(new_socket, buffer, 1024);
if(read_size > 0 )
{
printf("%s\n",buffer);
if(!strncmp(buffer, "IMG", 3))
{
send_image(new_socket);
printf("image sent\n");
}
if(!strncmp(buffer, "DAT", 3))
{
write(new_socket, data, strlen(data));
printf("data sent\n");
}
}
}
return 0;
}
windows program(receiver)
ref : link
ref : iamge send and recevie
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