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introduce wersion v2 single connect

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This commit is contained in:
s449273 2019-12-09 14:28:52 +01:00
parent bc58d89d4d
commit 2d79d2a265
6 changed files with 341 additions and 6 deletions
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2
server/.gitignore vendored
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@ -1,3 +1,5 @@
server
send
a.out
serverv2
sendv2

0
server/example.jpg
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2
server/send.c
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@ -138,8 +138,6 @@ int main(int argc, char **argv)
fclose(file);
close(sdsocket);
goto start;
}

153
server/sendv2.c Normal file
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@ -0,0 +1,153 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/time.h>
int main(int argc, char **argv)
{
const int port = 7332;
const char ip[512] = "192.168.0.43";
struct sockaddr_in endpoint;
struct dirent **namelist;
char buff[512];
char name_file[512];
int sdsocket, addrlen, n, x, lenbyt;
endpoint.sin_family = AF_INET;
endpoint.sin_port = htons(port);
endpoint.sin_addr.s_addr = inet_addr(ip);
addrlen = sizeof(struct sockaddr_in);
ssize_t count = 0;
while (1)
{
start:
printf("Enter the server query\n");
bzero(buff, 512);
scanf("%s", buff);
if (strncmp("CLIENTOFF", buff, 9) == 0)
{
close(sdsocket);
return 0;
}
else if (strncmp("HELP", buff, 4) == 0)
{
printf("COMMAND LIST:\n CLIENTOFF\n EXIT\n GET_ALL_FILES\n FTP_namefile\n SEND_namefile\n");
goto start;
}
if ((sdsocket = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
printf("socket() failed\n");
return 1;
}
if (connect(sdsocket, (struct sockaddr *)&endpoint, addrlen) < 0)
{
printf("connect() failed\n");
return 0;
}
else
printf("CONNECTED\n");
send(sdsocket, buff, 512, 0);
if (strncmp("FTP", buff, 3) == 0)
{
ssize_t total = 0;
strncpy(name_file, buff + 4, 509);
printf("Name of file :%s\n", name_file);
FILE *file = fopen(name_file, "wb");
if (file == NULL)
{
printf("fopen() failed");
}
char length[512];
recv(sdsocket, length, 512, 0);
printf("Rozmiar pliku to: %s\n", length);
lenbyt = atoi(length);
printf("Rozmiar pliku w intach to: %d\n", lenbyt);
char addr[INET_ADDRSTRLEN];
printf("Downloading file: %s od %s\n", name_file, inet_ntop(AF_INET, &endpoint.sin_addr.s_addr, addr, INET_ADDRSTRLEN));
ssize_t n;
char buff[4096] = {0};
while (total < lenbyt)
{
n = recv(sdsocket, buff, 4096, 0);
total += n;
if (n == -1)
{
printf("recv() failed");
}
if (fwrite(buff, sizeof(char), n, file) != n)
{
printf("fwrite() failed");
}
memset(buff, 0, 4096);
}
printf("Downloading succes, numer of bytes = %ld\n", total);
fclose(file);
goto start;
}
if (strncmp("SEND", buff, 4) == 0)
{
ssize_t count = 0;
bzero(name_file, 512);
strncpy(name_file, buff + 5, 507);
printf("File to send :%s\n", name_file);
FILE *file = fopen(name_file, "rb");
if (file == NULL)
{
printf("fopen() failed");
}
fseek(file, 0L, SEEK_END);
long int res = ftell(file);
printf("Rozmiar pliku to: %ld\n", res);
char length[512];
sprintf(length, "%ld", res);
send(sdsocket, length, 512, 0);
rewind(file);
char package[4096] = {0};
while ((x = fread(package, sizeof(char), 4096, file)) > 0)
{
count += x;
if (send(sdsocket, package, x, 0) == -1)
{
printf("send() failed");
}
memset(package, 0, 4096);
}
printf("Send success, number of bytes: %ld\n", count);
fclose(file);
goto start;
}
bzero(buff, 512);
recv(sdsocket, buff, 512, 0);
printf("%s\n", buff);
}
return 0;
}

2
server/server.c
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@ -115,8 +115,6 @@ int main(int argc, char **argv)
&addrlen)) >= 0)
{
while ((n = recv(sdconnection2, buff, 4096, 0)) > 0)
{
total += n;

184
server/serverv2.c Normal file
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@ -0,0 +1,184 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <dirent.h>
int main(int argc, char **argv)
{
const int port = 7332;
struct sockaddr_in myaddr, endpoint;
struct dirent **namelist;
char buff[512];
char name_file[512];
char names_files[512];
int sdsocket, sdconnection, addrlen, n, x, lenbyt;
sdsocket = socket(AF_INET, SOCK_STREAM, 0);
addrlen = sizeof(struct sockaddr_in);
myaddr.sin_family = AF_INET;
myaddr.sin_port = htons(port);
myaddr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(sdsocket, (struct sockaddr *)&myaddr, addrlen) < 0)
{
printf("bind() failed\n");
return 1;
}
if (listen(sdsocket, 10) < 0)
{
printf("listen() failed\n");
return 1;
}
while (1)
{
start:
while ((sdconnection =
accept(sdsocket,
(struct sockaddr *)&endpoint,
&addrlen)) >= 0)
{
printf("CONNECT FROM : %s\n ", inet_ntoa(endpoint.sin_addr));
bzero(buff, 512);
recv(sdconnection, buff, 512, 0);
if (strncmp("GET_ALL_FILES", buff, 13) == 0)
{
printf("Sending list of names files\n");
bzero(names_files, 512);
bzero(name_file, 512);
n = scandir(".", &namelist, NULL, alphasort);
if (n == -1)
{
perror("scandir");
exit(EXIT_FAILURE);
}
while (n--)
{
sprintf(name_file, "%s\n", namelist[n]->d_name);
strcat(names_files, name_file);
free(namelist[n]);
}
free(namelist);
send(sdconnection, names_files, 512, 0);
goto start;
}
else if (strncmp("SEND", buff, 4) == 0)
{
ssize_t total = 0;
strncpy(name_file, buff + 5, 508);
printf("Name of file :%s\n", name_file);
printf("I'm receving a file: %s\n", buff);
FILE *file = fopen(name_file, "wb");
if (file == NULL)
{
printf("fopen() failed");
}
char length[512];
recv(sdconnection, length, 512, 0);
printf("Rozmiar pliku to: %s\n", length);
lenbyt = atoi(length);
printf("Rozmiar pliku w intach to: %d\n", lenbyt);
char addr[INET_ADDRSTRLEN];
printf("Downloading file: %s od %s\n", name_file, inet_ntop(AF_INET, &endpoint.sin_addr.s_addr, addr, INET_ADDRSTRLEN));
ssize_t n;
char buff[4096] = {0};
while (total < lenbyt)
{
n = recv(sdconnection, buff, 4096, 0);
total += n;
if (n == -1)
{
printf("recv() failed");
}
if (fwrite(buff, sizeof(char), n, file) != n)
{
printf("fwrite() failed");
}
memset(buff, 0, 4096);
}
printf("Downloading succes, numer of bytes = %ld\n", total);
fclose(file);
}
else if (strncmp("EXIT", buff, 4) == 0)
{
printf("Server shut down..\n");
close(sdsocket);
return 0;
}
else if (strncmp("FTP", buff, 3) == 0)
{
ssize_t count = 0;
bzero(name_file, 512);
strncpy(name_file, buff + 4, 509);
printf("File to send :%s\n", name_file);
FILE *file = fopen(name_file, "rb");
if (file == NULL)
{
printf("fopen() failed");
}
fseek(file, 0L, SEEK_END);
long int res = ftell(file);
printf("Rozmiar pliku to: %ld\n", res);
char length[512];
sprintf(length, "%ld", res);
send(sdconnection, length, 512, 0);
rewind(file);
char package[4096] = {0};
while ((x = fread(package, sizeof(char), 4096, file)) > 0)
{
count += x;
if (send(sdconnection, package, x, 0) == -1)
{
printf("send() failed");
}
memset(package, 0, 4096);
}
printf("Send success, number of bytes: %ld\n", count);
fclose(file);
}
else
{
printf("Wrong query: %s\n", buff);
send(sdsocket, "Wrong query", 512, 0);
goto start;
}
}
}
close(sdsocket);
return 0;
}