137 lines
3.3 KiB
C
Executable File
137 lines
3.3 KiB
C
Executable File
/* myclient.c */
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#include <sys/types.h>
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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 <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#define BUF 1024
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#define PORT 6543
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int main(int argc, char **argv)
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{
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char *meinport = argv[2];
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int create_socket;
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char buffer[BUF];
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struct sockaddr_in address;
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int size;
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if (argc < 2)
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{
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printf("Usage: %s ServerAdresse\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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if ((create_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1)
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{
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perror("Socket error");
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return EXIT_FAILURE;
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}
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memset(&address, 0, sizeof(address));
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address.sin_family = AF_INET;
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address.sin_port = htons(*meinport);
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inet_aton(argv[1], &address.sin_addr);
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if (connect(create_socket, (struct sockaddr *)&address, sizeof(address)) == 0)
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{
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printf("Connection with server (%s) established\n", inet_ntoa(address.sin_addr));
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size = recv(create_socket, buffer, BUF - 1, 0);
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if (size > 0)
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{
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buffer[size] = '\0';
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printf("%s", buffer);
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}
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}
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else
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{
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perror("Connect error - no server available");
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return EXIT_FAILURE;
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}
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int last = 0;
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int mode = 0;
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char bufferString[1024];
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do
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{
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if (strncmp(bufferString, "send", 4) == 0 || mode == 1)
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{
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switch (last)
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{
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case 0:
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last += 1;
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mode = 1;
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printf("\x1B[34m");
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printf("->SEND->Sender eingeben: \n");
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break;
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case 1:
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last += 1;
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printf("\x1B[34m");
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printf("->SEND->Empfänger eingeben: \n");
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break;
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case 2:
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last += 1;
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printf("\x1B[34m");
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printf("->SEND->Betreff eingeben: \n");
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break;
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case 3:
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last = 0;
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mode = 0;
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printf("\x1B[34m");
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printf("->SEND->Nachricht eingeben: \n");
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break;
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}
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}
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else if (strncmp(bufferString, "list", 4) == 0 || mode == 2)
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{
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switch (last)
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{
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case 0:
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last += 1;
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mode = 2;
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printf("\x1B[34m");
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printf("->LIST->Username eingeben: \n");
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break;
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case 1:
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last = 0;
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mode = 0;
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printf("\x1B[34m");
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printf("->List");
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while (strcmp(buffer, "LISTREADSTOPNOW\n") != 0)
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{
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size = recv(create_socket, buffer, BUF - 1, 0);
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if (size > 0)
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{
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buffer[size] = '\0';
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printf("\x1B[37m %s", buffer);
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}
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}
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break;
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}
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}
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else if (strncmp(bufferString, "read", 4) == 0)
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{
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printf("READ wurde endlich erkannt!\n");
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}
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else if (strncmp(bufferString, "del", 4) == 0)
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{
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printf("DEL wurde endlich erkannt!\n");
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}
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else
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{
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char *p = getenv("USER");
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printf("\x1B[32m");
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printf("%s@%s:%d", p, inet_ntoa(address.sin_addr), ntohs(address.sin_port));
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}
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printf("\x1B[33m$ \x1B[37m");
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fgets(buffer, BUF, stdin);
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strcpy(bufferString, buffer);
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send(create_socket, buffer, strlen(buffer), 0);
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} while (strcmp(buffer, "quit\n") != 0);
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close(create_socket);
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return EXIT_SUCCESS;
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}
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