ivac: $(OBJS)
$(CC) $(CFLAGS) -o $@ $(OBJS) ivac.c $(LIBS)
-all: ivac
+all: links ivac
clean:
rm -f $(OBJS) ivac
+links:
+ ln -sf ../../api/event/event.{c,h} .
+ ln -sf ../../api/input/input.{c,h} .
+ ln -sf ../../api/display/display.{c,h} .
+ ln -sf ../../api/audio/audio.{c,h} .
+ ln -sf ../../api/network/network.{c,h} .
+ ln -sf ../../api/list/list.{c,h} .
+
remake: clean all
+++ /dev/null
-/* audio.c -- audio management stuff
- *
- * author: hackbard@hackdaworld.dyndns.org
- *
- */
-
-#include "audio.h"
-
-int audio_init(t_audio *audio) {
-
- puts("[audio] initializing audio ...");
-
- if((audio->dsp_fd=open(audio->dsp_dev,O_RDWR))==-1) {
- perror("[audio] open call");
- return A_ERROR;
- }
-
- if(ioctl(audio->dsp_fd,SNDCTL_DSP_GETCAPS,&(audio->dsp_cap))==-1) {
- perror("[audio] ioctl call");
- return A_ERROR;
- }
-
- if(!(audio->dsp_cap&DSP_CAP_DUPLEX)) {
- puts("[audio] no duplex support");
- return A_ERROR;
- }
-
- return A_SUCCESS;
-}
-
-int audio_setup(t_audio *audio) {
-
- int tmp;
-
- puts("[audio] setting up sound device & allocating record/playback buffer");
-
- tmp=audio->fmt;
- if(ioctl(audio->dsp_fd,SNDCTL_DSP_SETFMT,&tmp)==-1) {
- perror("[audio] ioctl call (SNDCTL_DSP_SETFMT)");
- return A_ERROR;
- }
- if(tmp!=audio->fmt) {
- puts("[audio] FMT not supported");
- return A_ERROR;
- }
-
- tmp=audio->speed;
- if(ioctl(audio->dsp_fd,SNDCTL_DSP_SPEED,&tmp)==-1) {
- perror("[audio] ioctl call (SNDCTL_DSP_SPEED)");
- return A_ERROR;
- }
- if(tmp!=audio->speed) {
- puts("[audio] SPEED not supported");
- return A_ERROR;
- }
-
- if(ioctl(audio->dsp_fd,SNDCTL_DSP_GETBLKSIZE,&(audio->blksize))==-1) {
- perror("[audio] ioctl call (SNDCTL_DSP_GETBLKSIZE)");
- return A_ERROR;
- }
-
- if((audio->play_data=(unsigned char *)malloc(audio->blksize))==NULL) {
- perror("[audio] malloc call");
- return A_ERROR;
- }
- if((audio->rec_data=(unsigned char *)malloc(audio->blksize))==NULL) {
- perror("[audio] malloc call");
- return A_ERROR;
- }
-
- return A_SUCCESS;
-}
-
-int audio_shutdown(t_audio *audio) {
-
- puts("[audio] shutdown");
-
- free(audio->play_data);
- free(audio->rec_data);
-
- if(close(audio->dsp_fd)==-1) {
- perror("[audio] close call");
- return A_ERROR;
- }
-
- return A_SUCCESS;
-}
-
-int audio_play(t_audio *audio,int len) {
-
- int count,left;
-
- count=0;
- left=len;
-
- while(left) {
- if((count=write(audio->dsp_fd,audio->play_data+len-left,left))==-1) {
- perror("[audio] write call");
- return A_ERROR;
- }
- left-=count;
- }
-
- return A_SUCCESS;
-}
-
-int audio_record(t_audio *audio,int len) {
-
- int count,left;
-
- count=0;
- left=len;
-
- while(left) {
- if((count=read(audio->dsp_fd,audio->rec_data+len-left,left))==-1) {
- perror("[audio] read call");
- return A_ERROR;
- }
- left-=count;
- }
-
- return A_SUCCESS;
-}
+++ /dev/null
-/* audio.h -- audio headers */
-
-#ifndef AUDIO_H
-#define AUDIO_H
-
-/* includes */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/soundcard.h>
-
-/* defines */
-#define MAX_CHAR_DEVICE 32
-#define SOUND_DEVICE "/dev/dsp"
-
-#define A_SUCCESS 1
-#define A_ERROR -1
-
-#define BIT_8 AFMT_U8
-#define BIT_16 AFMT_S16_LE
-#define MONO 1
-#define STEREO 2
-
-/* audio specific variables */
-typedef struct s_audio {
- int dsp_fd;
- int mixer_fd;
- char dsp_dev[MAX_CHAR_DEVICE];
- char mixer_dev[MAX_CHAR_DEVICE];
- int dsp_cap;
- int fmt;
- int channels;
- int speed;
- int blksize;
- int mixer_cap;
- unsigned char volume;
- unsigned char *play_data;
- unsigned char *rec_data;
-} t_audio;
-
-/* function prototypes */
-int audio_init(t_audio *audio);
-int audio_setup(t_audio *audio);
-int audio_shutdown(t_audio *audio);
-int audio_play(t_audio *audio,int len);
-int audio_record(t_audio *audio,int len);
-
-#endif
+++ /dev/null
-/* display.c -- display management stuff
- *
- * hackbard@hackdaworld.dyndns.org
- *
- */
-
-#include "display.h"
-
-#define USE_NCURSES
-
-int display_init(t_display *display) {
-
- struct winsize ws;
-
- /* dimensions */
- if(ioctl(1,TIOCGWINSZ,&ws)==-1) {
- perror("[display] ioctl call");
- return D_ERROR;
- }
- display->max_x=ws.ws_col;
- display->max_y=ws.ws_row;
-
- printf("[display] initializing display, width: %02d / height: %02d ...\n",
- ws.ws_col,ws.ws_row);
-
- /* allocating 'screen' buffer */
- if((display->screen=(unsigned char *)malloc(display->max_x*display->max_y))
- ==NULL) {
- perror("[display] malloc call");
- return D_ERROR;
- }
- /* space as display pixel default */
- memset(display->screen,0x20,display->max_x*display->max_y);
-
-#ifdef USE_NCURSES
- initscr();
- nonl();
- noecho();
- cbreak();
- curs_set(0);
-#endif
-
- return D_SUCCESS;
-}
-
-int display_draw(t_display *display) {
-
- int x,y;
-
-#ifdef USE_NCURSES
- mvprintw(0,0,"%s",display->screen);
- for(y=0;y<display->max_y;y++)
- for(x=0;x<display->max_x;x++)
- mvaddch(y,x,*(display->screen+y*display->max_x+x));
- refresh();
-#else
- for(y=0;y<display->max_y;y++) {
- for(x=0;x<display->max_x;x++)
- printf("%c",*(display->screen+y*display->max_x+x));
- printf("\n");
- }
-#endif
-
- return D_SUCCESS;
-}
-
-int display_draw_until_line(t_display *display,int line) {
-
- int x,y;
-
-#ifdef USE_NCURSES
- for(y=0;y<line;y++) {
- for(x=0;x<display->max_x;x++)
- mvaddch(y,x,*(display->screen+y*display->max_x+x));
- refresh();
- }
-#else
- for(y=0;y<line;y++) {
- for(x=0;x<display->max_x;x++)
- printf("%c",*(display->screen+y*display->max_x+x));
- printf("\n");
- }
-#endif
-
- return D_SUCCESS;
-}
-
-int display_set_cursor(t_display *display,int x,int y) {
-
-#ifdef USE_NCURSES
- move(y,x);
- refresh();
-#endif
-
- return D_SUCCESS;
-}
-
-int display_clear_screen(t_display *display) {
-
- memset(display->screen,0x20,display->max_x*display->max_y);
-
- return D_SUCCESS;
-}
-
-int display_shutdown(t_display *display) {
-
-#ifdef USE_NCURSES
- endwin();
-#endif
-
- free(display->screen);
-
- puts("[display] shutdown");
-
- return D_SUCCESS;
-}
-
-int display_line(t_display *display,int X,int Y,int X_,int Y_,char sym) {
-
- double m;
- int x,y;
-
- m=(Y_-Y)/(X_-X);
-
- for(y=0;y<display->max_y;y++)
- for(x=0;x<display->max_x;x++)
- if((int)((x-X)*m+Y)==y) *(display->screen+y*display->max_x+x)=sym;
-
- return D_SUCCESS;
-}
-
-int display_string(t_display *display,int x,int y,char *string,int len) {
-
- if(len>display->max_x-x) return D_INV_STRING_LEN;
-
- memcpy(display->screen+y*display->max_x+x,string,len);
-
- return D_SUCCESS;
-}
-
-int display_string_vert(t_display *display,int x,int y,char *string,int len) {
-
- int i;
-
- if(len>display->max_y-y) return D_INV_STRING_LEN;
- for(i=y*display->max_x+x;i<(y+len)*display->max_x+x;i+=display->max_x)
- *(display->screen+i)=*(string++);
-
- return D_SUCCESS;
-}
+++ /dev/null
-/* display.h -- display headers */
-
-/* includes */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <ncurses.h>
-
-/* defines */
-#define D_SUCCESS 1
-#define D_ERROR -1
-#define D_INV_STRING_LEN -2
-
-#define MAX_TERM_STRING 64
-
-#define CENTERED (1<<0)
-#define LEFT (1<<1)
-#define RIGHT (1<<2)
-
-/* display specific variables */
-typedef struct s_display {
- int max_x;
- int max_y;
- unsigned char *screen;
-} t_display;
-
-/* function prototypes */
-int display_init(t_display *display);
-int display_draw(t_display *display);
-int display_draw_until_line(t_display *display,int line);
-int display_set_cursor(t_display *display,int x,int y);
-int display_clear_screen(t_display *display);
-int display_shutdown(t_display *display);
-int display_line(t_display *display,int X,int Y,int X_,int Y_,char sym);
-int display_string(t_display *display,int x,int y,char *string,int len);
-int display_string_vert(t_display *display,int x,int y,char *string,int len);
+++ /dev/null
-/* event.c -- event management stuff
- *
- * author: hackbard@hackdaworld.dyndns.org
- *
- */
-
-#include "event.h"
-
-int event_init(t_event *event) {
-
- puts("[event] initializing event system ...");
-
- event->maxfd=0;
-
- FD_ZERO(&(event->rfds));
- FD_ZERO(&(event->rfds_o));
- FD_ZERO(&(event->wfds));
- FD_ZERO(&(event->wfds_o));
-
- return E_SUCCESS;
-}
-
-int event_math(int fd,t_event *event,char rw,char ar) {
-
- if(ar==ADD) {
- if(rw==READ) FD_SET(fd,&(event->rfds_o));
- else FD_SET(fd,&(event->wfds_o));
- if(fd>event->maxfd) event->maxfd=fd;
- } else {
- if(rw==READ) FD_CLR(fd,&(event->rfds_o));
- else FD_CLR(fd,&(event->wfds_o));
- if(fd==event->maxfd) event->maxfd-=1;
- }
-
- printf("[event] %c fd %d to %c file descriptor set\n",ar==ADD?'+':'-',fd,
- rw==READ?'r':'w');
-
- return E_SUCCESS;
-}
-
-int event_start(t_event *event,void *ptr,
- int (*callback0)(t_event *event,void *ptr),
- int (*callback1)(t_event *event,void *ptr)) {
-
- int s_ret;
- struct timeval tv;
-
- /* switch on event system */
- event->status=ENABLED;
-
- while(event->status&ENABLED) {
-
- event->rfds=event->rfds_o;
- event->wfds=event->wfds_o;
- tv=event->timeout;
-
- if((s_ret=select(event->maxfd+1,&(event->rfds),&(event->wfds),NULL,
- &tv))==-1) {
- perror("[event] select call");
- return E_ERROR;
- }
-
- if(s_ret) {
- /* 1+ fd(s) available for reading/writing */
- if(callback0(event,ptr)==CALLBACK_ERROR) {
- puts("[event] callback0 returned error");
- return E_ERROR;
- }
- }
-
- /* usual stuff to be executed */
- if(callback1(event,ptr)==CALLBACK_ERROR) {
- puts("[event] callback returned error");
- return E_ERROR;
- }
-
- }
-
- return E_SUCCESS;
-}
-
-int event_stop(t_event *event) {
-
- puts("[event] shutdown");
- event->status=DISABLED;
-
- return E_SUCCESS;
-}
+++ /dev/null
-/* event.h -- event headers */
-
-#ifndef EVENT_H
-#define EVENT_H
-
-/* includes */
-#include <stdio.h>
-#include <sys/select.h>
-
-/* defines */
-
-/* return values */
-#define CALLBACK_ERROR -1
-#define E_ERROR -1
-#define E_SUCCESS 1
-
-/* event status */
-#define DISABLED 0
-#define ENABLED 1
-
-/* read write mode */
-#define READ 'r'
-#define WRITE 'w'
-/* add remove mode */
-#define ADD 'a'
-#define REMOVE 'r'
-
-/* event specific variables */
-typedef struct s_event {
- int maxfd;
- fd_set rfds,rfds_o;
- fd_set wfds,wfds_o;
- struct timeval timeout;
- unsigned char status;
-} t_event;
-
-/* function prototypes */
-int event_init(t_event *event);
-int event_math(int fd,t_event *event,char rw,char ar);
-int event_start(t_event *event,void *ptr,
- int (*callback0)(t_event *event,void *ptr),
- int (*callback1)(t_event *event,void *ptr));
-int event_stop(t_event *event);
-
-#endif
+++ /dev/null
-/* input.c -- input management stuff
- *
- * author: hackbard@hackdaworld.dyndns.org
- *
- */
-
-#include "input.h"
-
-int input_init(t_input *input) {
-
- struct termios tios;
- int size;
-
- puts("[input] initializing input system ...");
-
- size=((input->mode&CONTENT_BUFFER)?MAX_CONTENT:1);
-
- if((input->content=(char *)malloc(size))==NULL) {
- perror("[input] malloc call");
- return I_ERROR;
- }
-
- memset(input->content,0,size);
- input->c_count=0;
-
- tcgetattr(0,&(input->tios));
- tios=input->tios;
-
- /* general settings */
- tios.c_iflag&=ICRNL; /* \r -> \n */
- tios.c_cc[VTIME]=0; /* no timeout */
- tios.c_cc[VMIN]=1; /* 1 char for non-can. mode */
-
- /* depending on used modes */
- if(!(input->mode&LINE_BUFFERED)) tios.c_lflag&=(~ICANON);
- if(!(input->mode&INPUT_ECHO)) tios.c_lflag&=(~ECHO);
-
- tcsetattr(0,TCSANOW,&tios);
-
- return I_SUCCESS;
-}
-
-int input_shutdown(t_input *input) {
-
- free(input->content);
- tcsetattr(0,TCSANOW,&(input->tios));
- puts("[input] shutdown");
-
- return I_SUCCESS;
-}
-
-int input_get_event(t_input *input,int (*callback)(t_input *input,void *ptr),
- void *ptr) {
-
- char data[MAX_CONTENT];
- int count;
-
- /* delete char counter if not buffered */
- if(!(input->mode&CONTENT_BUFFER)) input->c_count=0;
-
- if((count=read(0,data,MAX_CONTENT))==-1) {
- perror("[input] read call");
- return I_ERROR;
- }
-
- if(input->c_count>=MAX_CONTENT) {
- puts("[input] max input length reached");
- return I_ERROR;
- }
-
- strncpy(&(input->content[input->c_count]),data,count);
- input->c_count+=count;
-
- callback(input,ptr);
-
- return I_SUCCESS;
-}
+++ /dev/null
-/* input.h -- input headers */
-
-#ifndef INPUT_H
-#define INPUT_H
-
-/* includes */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <termios.h>
-
-/* defines */
-#define I_SUCCESS 1
-#define I_ERROR -1
-
-#define MENUE (1<<0)
-#define CONNECTIONS (1<<1)
-
-#define MAX_CONTENT 128
-
-#define LINE_BUFFERED (1<<0)
-#define CONTENT_BUFFER (1<<1)
-#define INPUT_ECHO (1<<2)
-
-/* input specific variables */
-typedef struct s_input {
- char *content;
- int c_count;
- unsigned char mode;
- struct termios tios;
-} t_input;
-
-/* function prototypes */
-int input_init(t_input *input);
-int input_shutdown(t_input *input);
-int input_get_event(t_input *input,int (*callback)(t_input *input,void *ptr),
- void *ptr);
-
-#endif
ivac=(t_ivac *)ptr;
- ivac_add_to_monitor(ivac,"event HUGH");
-
/* usual jobs like audio & video transmit ... */
return SUCCESS;
char *data,valid;
char c_str[IVAC_CONSOLE_STRING_LEN];
char arg[IVAC_ARG_COUNT][IVAC_ARG_LEN];
- char debug_string[128];
+#ifdef DEBUG
+ char debug_string[IVAC_CONSOLE_STRING_LEN];
+#endif
ivac=(t_ivac *)ptr;
data=input->content;
ivac_display_prompt_content(ivac);
ivac_display_draw(ivac);
-#ifdef DEBUG
- ivac_add_to_monitor(ivac,"nach display refresh");
-#endif
-
/* parse command routines */
if(data[input->c_count-1]=='\n'||data[input->c_count-1]=='\r') {
#ifdef DEBUG
- ivac_add_to_monitor(ivac,"got newline or carriage return!");
+ sprintf(debug_string,"got %02x",data[input->c_count-1]);
+ ivac_add_to_monitor(ivac,debug_string);
#endif
/* delete console string + args */
i+=k;
}
+#ifdef DEBUG
+ sprintf(debug_string,"got args: %s ...",arg[0]);
+ ivac_add_to_monitor(ivac,debug_string);
+#endif
/* parse command aka arg[0] */
if(!(strncmp(arg[0],"quit",4))) {
}
- ivac_add_to_monitor(ivac,"debug: end of parse function");
-
return SUCCESS;
}
char string[IVAC_CONSOLE_STRING_LEN];
int count;
+#ifdef DEBUG
+ char debug_string[IVAC_CONSOLE_STRING_LEN];
+#endif
for(count=0;count<ivac->input.c_count;count++)
string[count]=ivac->input.content[count];
- for(;count<ivac->display.max_x-8;count++) string[count]=' ';
+ for(count=ivac->input.c_count;count<IVAC_CONSOLE_STRING_LEN-8;count++)
+ string[count]=' ';
display_string(&(ivac->display),8,ivac->display.max_y-1,
string,ivac->display.max_x);
+
+#ifdef DEBUG
+ sprintf(debug_string,"%02x %02x %02x %02x ...",ivac->input.content[0],
+ ivac->input.content[1],
+ ivac->input.content[2],
+ ivac->input.content[3]);
+ ivac_add_to_monitor(ivac,debug_string);
+#endif
return SUCCESS;
}
+++ /dev/null
-/* network.c -- network management stuff
- *
- * author: hackbard@hackdaworld.dyndns.org
- *
- */
-
-#include "network.h"
-
-int network_init(t_net *net) {
-
- struct sockaddr_in addr;
- int true;
-
- puts("[network] initializing network ...");
-
- memset(net->connection,0,MAX_CONNECTIONS*sizeof(t_connection));
- net->c_count=0;
- net->sendmask=0;
-
- if((net->l_fd=socket(AF_INET,SOCK_STREAM,0))==-1) {
- perror("[network] socket call");
- return N_ERROR;
- }
-
- memset(&addr,0,sizeof(struct sockaddr));
- addr.sin_family=AF_INET;
- addr.sin_port=htons(net->l_port);
- addr.sin_addr.s_addr=INADDR_ANY;
-
- if(bind(net->l_fd,(struct sockaddr *)&addr,
- sizeof(struct sockaddr))==-1) {
- /* try harder ... */
- true=1;
- if(setsockopt(net->l_fd,SOL_SOCKET,SO_REUSEADDR,&true,sizeof(true))==-1) {
- perror("[network] setsockopt call");
- return N_ERROR;
- }
- puts("[network] reused address");
- }
-
- if(listen(net->l_fd,MAX_LISTEN_QUEUE)==-1) {
- perror("[network] listen call");
- return N_ERROR;
- }
-
- printf("[network] listen on %s port %d\n",inet_ntoa(addr.sin_addr),
- net->l_port);
-
- return N_SUCCESS;
-}
-
-int network_shutdown(t_net *net) {
-
- int channel;
-
- for(channel=0;channel<MAX_CONNECTIONS;channel++)
- if(net->connection[channel].status&C_SOCKET)
- close(net->connection[channel].fd);
-
- if(close(net->l_fd)==-1) {
- perror("[network] close call");
- return N_ERROR;
- }
-
- puts("[network] shutdown");
-
- return N_SUCCESS;
-}
-
-int network_set_listen_port(t_net *net,in_port_t port) {
-
- net->l_port=port;
-
- return N_SUCCESS;
-}
-
-int network_manage_connection(t_net *net) {
-
- int i;
- struct sockaddr_in addr;
-
- for(i=0;i<MAX_CONNECTIONS;i++) {
-
- if(net->connection[i].status&C_IN_USE) {
-
- if(net->connection[i].status&C_HANGUP) {
- if(close(net->connection[i].fd)==-1) {
- perror("[network] close call");
- return N_E_CLOSE;
- }
- printf("[network] connection %d closed\n",i);
- net->connection[i].status=0;
- }
-
- if(net->connection[i].status&C_INFO_A) {
-
- if(!(net->connection[i].status&C_SOCKET)) {
- if((net->connection[i].fd=socket(AF_INET,SOCK_STREAM,0))==-1) {
- perror("[network] socket call");
- return N_ERROR;
- }
- net->connection[i].status|=C_SOCKET;
- }
-
- if((!(net->connection[i].status&C_ESTABL))&&
- (net->connection[i].status&C_SOCKET)) {
-
- memset(&addr,0,sizeof(struct sockaddr));
- addr.sin_family=AF_INET;
- addr.sin_port=htons(net->connection[i].port);
- if(!inet_aton(net->connection[i].ip,&(addr.sin_addr))) {
- perror("[network] inet_aton call");
- return N_ERROR;
- }
-
- if(connect(net->connection[i].fd,(struct sockaddr *)&addr,
- sizeof(struct sockaddr))==-1) {
- perror("[network] connect call");
- return N_E_CONNECT;
- }
-
- printf("[network] established connection to ");
- printf("%s port %d on channel %d\n",net->connection[i].ip,
- net->connection[i].port,i);
- net->connection[i].status|=C_ESTABL;
-
- }
-
- }
-
- }
-
- }
-
- return N_SUCCESS;
-}
-
-int network_connect(t_net *net,int channel) {
-
- if(net->connection[channel].status&C_IN_USE) {
- printf("[network] connect failed, channel %02d in use\n",channel);
- return N_E_IN_USE;
- }
- if(!(net->connection[channel].status&C_INFO_A)) {
- printf("[network] connect failed, missing configuration for channel %02d\n",
- channel);
- return N_E_NO_INFO;
- }
-
- /* try connect & return result */
- net->connection[channel].status|=C_IN_USE;
- return(network_manage_connection(net)); /* could be other channel too */
-}
-
-int network_close(t_net *net,int channel) {
-
- if(!(net->connection[channel].status&C_ESTABL)) {
- printf("[network] close failed, channel %02d not active\n",channel);
- return N_E_NC;
- }
-
- net->connection[channel].status|=C_HANGUP;
- return(network_manage_connection(net)); /* could be other channel too */
-}
-
-int network_close_all(t_net *net) {
-
- int channel;
-
- for(channel=0;channel<MAX_CONNECTIONS;channel++)
- if(net->connection[channel].status&C_ESTABL) network_close(net,channel);
-
- return N_SUCCESS;
-}
-
-int network_set_connection_info(t_net *net,int channel,char *ip,int port) {
-
- if(net->connection[channel].status&C_IN_USE) {
- printf("[network] set connection failed, channel %02d in use\n",channel);
- return N_E_IN_USE;
- }
-
- strncpy(net->connection[channel].ip,ip,IP_DIGITS);
- net->connection[channel].port=port;
- net->connection[channel].status|=C_INFO_A;
-
- return N_SUCCESS;
-}
-
-int network_select(t_net *net,int channel) {
-
- int mask;
-
- if(channel==MAX_CONNECTIONS) mask=0xffffffff;
- else mask=(1<<channel);
- net->sendmask|=mask;
-
- return N_SUCCESS;
-}
-
-int network_deselect(t_net *net,int channel) {
-
- int mask;
-
- if(channel==MAX_CONNECTIONS) mask=0;
- else mask=~(1<<channel);
- net->sendmask&=mask;
-
- return N_SUCCESS;
-}
-
-int network_manage_incoming(t_net *net) {
-
- int channel;
- struct sockaddr_in addr;
- int len;
-
- for(channel=0;channel<MAX_CONNECTIONS;channel++) {
- if(!(net->connection[channel].status&C_IN_USE)) {
- if((net->connection[channel].fd=accept(net->l_fd,
- (struct sockaddr *)&addr,
- &len))==-1) {
- perror("[network] accept call");
- return N_E_ACCEPT;
- }
- strncpy(net->connection[channel].ip,inet_ntoa(addr.sin_addr),IP_DIGITS);
- net->connection[channel].port=ntohs(addr.sin_port);
- net->connection[channel].status=C_IN_USE|C_INFO_A|C_SOCKET|C_ESTABL;
- printf("[network] established connection from %s port %d on channel %d\n",
- net->connection[channel].ip,net->connection[channel].port,channel);
- return channel;
- }
- }
-
- puts("[network] maximum connections reached");
- return N_E_MAXC;
-}
-
-int network_send(int fd,unsigned char *data,int datasize) {
-
- int count,left;
-
- count=0;
- left=datasize;
-
- while(left) {
- if((count=write(fd,data+datasize-left,left))==-1) {
- perror("[network] write call");
- return N_ERROR;
- }
- left-=count;
- }
-
- return N_SUCCESS;
-}
-
-int network_receive(int fd,unsigned char *data,int datasize) {
-
- int count;
-
- if((count=read(fd,data,datasize))==-1) {
- perror("[network] read call");
- return N_ERROR;
- }
-
- return count;
-}
-
-int network_udp_listen_init(t_net *net) {
-
- struct sockaddr_in addr;
- int true;
-
- if((net->l_udp_fd=socket(AF_INET,SOCK_DGRAM,0))==-1) {
- perror("[network] socket call (udp-receive)");
- return N_ERROR;
- }
-
- memset(&addr,0,sizeof(struct sockaddr));
- addr.sin_family=AF_INET;
- addr.sin_port=htons(net->l_udp_port);
- addr.sin_addr.s_addr=INADDR_ANY;
- if(bind(net->l_udp_fd,(struct sockaddr *)&addr,sizeof(struct sockaddr))==-1) {
- /* try harder ... */
- true=1;
- if(setsockopt(net->l_udp_fd,SOL_SOCKET,SO_REUSEADDR,
- &true,sizeof(true))==-1) {
- perror("[network] setsockopt call (udp)");
- return N_ERROR;
- }
- puts("[network] reused address (udp)");
- }
-
- printf("[network] listening on port %d (udp)\n",net->l_udp_port);
-
- if((net->s_udp_fd=socket(AF_INET,SOCK_DGRAM,0))==-1) {
- perror("[network] socket call (udp-send)");
- return N_ERROR;
- }
-
- return N_SUCCESS;
-}
-
-int network_udp_receive(t_net *net,int channel, unsigned char *data,int count) {
-
- struct sockaddr_in addr;
- socklen_t len;
-
- if((count=recvfrom(net->l_udp_fd,data,count,0,
- (struct sockaddr *)&addr,&len))==-1) {
- perror("[network] recvfrom call");
- return N_ERROR;
- }
-
- if(strncmp(net->connection[channel].ip,inet_ntoa(addr.sin_addr),IP_DIGITS)) {
- printf("[network] packet from unknown: %s\n",inet_ntoa(addr.sin_addr));
- return N_UDP_WRONG_SENDER;
- }
-
- return N_SUCCESS;
-}
-
-int network_udp_send(t_net *net,int channel, unsigned char *data,int size) {
-
- int count,left;
- struct sockaddr_in addr;
-
- count=0;
- left=count;
-
- memset(&addr,0,sizeof(struct sockaddr));
- addr.sin_family=AF_INET;
- addr.sin_port=htons(net->l_udp_port);
- inet_aton(net->connection[channel].ip,&(addr.sin_addr));
-
- while(left) {
- if((count=sendto(net->s_udp_fd,data+size-left,left,0,
- (struct sockaddr *)&addr,sizeof(struct sockaddr)))==-1) {
- perror("[network] sendto call");
- return N_ERROR;
- }
- left-=count;
- }
-
- return N_SUCCESS;
-}
-
-int network_udp_shutdown(t_net *net) {
-
- if(close(net->l_udp_fd)==-1) {
- perror("[network] close call (udp-receive)");
- return N_ERROR;
- }
-
- if(close(net->s_udp_fd)==-1) {
- perror("[network] close call (udp-send)");
- return N_ERROR;
- }
-
- return N_SUCCESS;
-}
+++ /dev/null
-/* network.h -- network headers */
-
-#ifndef NETWORK_H
-#define NETWORK_H
-
-/* includes */
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-/* net specific includes */
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-/* defines */
-#define MAX_CONNECTIONS 32
-#define MAX_NIC_DEVICE 32
-
-#define IP_DIGITS 16
-#define C_IN_USE (1<<0)
-#define C_INFO_A (1<<1)
-#define C_SOCKET (1<<2)
-#define C_ESTABL (1<<3)
-#define C_HANGUP (1<<4)
-
-#define SEND_N_MAX 128
-
-#define N_SUCCESS 1
-#define N_ERROR -1
-#define N_E_IN_USE -2
-#define N_E_NO_INFO -3
-#define N_E_CLOSE -4
-#define N_E_CONNECT -5
-#define N_E_NC -6
-#define N_E_ACCEPT -7
-#define N_E_MAXC -8
-
-#define N_UDP_WRONG_SENDER -9
-
-#define MAX_LISTEN_QUEUE 32
-
-/* net specific variables */
-typedef struct s_connection {
- int fd;
- char ip[IP_DIGITS];
- in_port_t port;
- unsigned char status;
- unsigned short cap; /* capabilities */
-} t_connection;
-
-typedef struct s_net {
- int l_fd; /* fd for tcp conn */
- int l_udp_fd; /* fd for udp data receive */
- int s_udp_fd; /* fd for udp data send */
- in_port_t l_port; /* tcp port */
- int l_udp_port; /* udp listen port */
- unsigned short cap;
- /* limited connections by now -- replaced by list management later */
- int c_count;
- t_connection connection[MAX_CONNECTIONS];
- unsigned int sendmask; /* 32 bits for maximum of 32 connections */
- char nic[MAX_NIC_DEVICE];
-} t_net;
-
-/* function prototypes */
-int network_init(t_net *net);
-int network_shutdown(t_net *net);
-int network_set_listen_port(t_net *net,in_port_t port);
-int network_manage_connection(t_net *net);
-int network_connect(t_net *net,int channel);
-int network_close(t_net *net,int channel);
-int network_close_all(t_net *net);
-int network_set_connection_info(t_net *net,int channel,char *ip,int port);
-int network_select(t_net *net,int channel);
-int network_deselect(t_net *net,int channel);
-int network_manage_incoming(t_net *net);
-int network_send(int fd,unsigned char *data,int datasize);
-int network_receive(int fd,unsigned char *data,int datasize);
-int network_udp_listen_init(t_net *net);
-int network_udp_receive(t_net *net,int channel, unsigned char *data,int count);
-int network_udp_send(t_net *net,int channel, unsigned char *data,int size);
-int network_udp_shutdown(t_net *net);
-
-#endif
projects / my-code / ivac.git / commitdiff