71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netinet/tcp.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <resolv.h>
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#include <fcntl.h>
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#include <sys/time.h>
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#include <assert.h>
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#define MAXBUFF 4096
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int main(int argc, char * argv[]) {
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int sock, z=0, fd;
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char buff[MAXBUFF];
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struct sockaddr_in server_addr;
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int addrlen;
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if (argc != 4) {
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printf("Usage: %s <IP-address> <port number> <file to send>\n",argv[0]);
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exit(1);
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}
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sock = socket(AF_INET, SOCK_STREAM, 0);
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assert(sock != -1);
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bzero(&server_addr, sizeof(server_addr));
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server_addr.sin_family = AF_INET;
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server_addr.sin_port = htons(atoi(argv[2]));
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assert( inet_aton(argv[1], (struct in_addr*)&server_addr.sin_addr.s_addr) != 0 );
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addrlen = sizeof(server_addr);
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fd = open(argv[3],O_RDONLY,0666);
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assert(fd != -1);
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assert(connect(sock,(struct sockaddr *)&server_addr, addrlen) != -1);
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while(1) {
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ssize_t mbytes, nbytes;
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nbytes=read(fd,buff,MAXBUFF);
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if (nbytes==-1) {
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perror("read");
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exit(1);
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}
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if (nbytes==0) {
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break;
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}
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mbytes = write(sock,buff,nbytes);
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if (mbytes == -1) {
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perror("write");
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exit(1);
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}
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z=z+mbytes;
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}
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printf("file %s sent (%d bytes)",argv[3],z);
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close(sock);
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exit(0);
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}
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