instead of using perror() use printf(). Removes ugly and useless error codes. While here move function to *.c

fiche.c

@@ -387,6 +387,12 @@ void startup_message()
     printf("====================================\n");
 }
 
+void error(char *buffer)
+{
+    printf("%s\n", buffer);
+    exit(1);
+}
+
 void parse_parameters(int argc, char **argv)
 {
     int c;

fiche.h

@@ -80,7 +80,7 @@ int create_directory(char *slug);
 int check_protocol(char *buffer);
 
 void bind_to_port(int listen_socket, struct sockaddr_in serveraddr);
-void error(char *error_code){perror(error_code); exit(1);}
+void error(char *buffer);
 void perform_connection(int listen_socket);
 void generate_url(char *buffer, char *slug, size_t slug_length, struct client_data data);
 void save_to_file(char *buffer, char *slug, struct client_data data);