ZSIK_Projekt/server/server.c

163 lines
4.4 KiB
C
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#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>
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ssize_t count = 0;
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int main(int argc, char **argv)
{
const int port = 7332;
struct sockaddr_in myaddr, endpoint;
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int sdsocket, sdconnection, addrlen, sdconnection2, n, rec;
char odbior[512];
struct dirent **namelist;
char name_file[512];
char names_files[512];
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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() nie powiodl sie (failed)\n");
return 1;
}
if (listen(sdsocket, 10) < 0)
{
printf("listen() nie powiodl sie (failed)\n");
return 1;
}
while (1)
{
while ((sdconnection =
accept(sdsocket,
(struct sockaddr *)&endpoint,
&addrlen)) >= 0)
{
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printf("CONNECT FROM : %s\n ", inet_ntoa(endpoint.sin_addr));
bzero(odbior, 512);
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rec = recv(sdconnection, odbior, 512, 0);
close(sdconnection);
if (strncmp("GET_ALL_FILES", odbior, 13) == 0)
{
printf("Sending list of names files\n");
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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);
while ((sdconnection2 =
accept(sdsocket,
(struct sockaddr *)&endpoint,
&addrlen)) >= 0)
{
send(sdconnection2, names_files, 512, 0);
close(sdconnection2);
break;
}
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}
else if (strncmp("EXIT", odbior, 4) == 0)
{
printf("Server shut down..\n");
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close(sdsocket);
return 0;
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}
else if (strncmp("FTP", odbior, 3) == 0)
{
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bzero(name_file, 512);
strncpy(name_file, odbior + 4, 509);
printf("dlugość nazwy:%ld\n", strlen(name_file));
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printf("Plik do wyslania :%s\n", name_file);
FILE *file = fopen(name_file, "rb");
if (file == NULL)
{
printf("Open file failed");
}
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while ((sdconnection2 =
accept(sdsocket,
(struct sockaddr *)&endpoint,
&addrlen)) >= 0)
{
int x;
char package[4096] = {0};
while ((x = fread(package, sizeof(char), 4096, file)) > 0)
{
count += x;
if (send(sdconnection2, package, x, 0) == -1)
{
printf("Send failed");
}
memset(package, 0, 4096);
}
printf("Send Success, NumBytes = %ld\n", count);
fclose(file);
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close(sdconnection2);
break;
}
}
else
{
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printf("Wrong query\n %s nie istnieje\n", odbior);
while ((sdconnection2 =
accept(sdsocket,
(struct sockaddr *)&endpoint,
&addrlen)) >= 0)
{
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send(sdconnection2, "wrong query", 512, 0);
close(sdconnection2);
break;
}
}
}
}
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close(sdsocket);
return 0;
}