X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Fivac.git;a=blobdiff_plain;f=src%2Fnetwork.c;fp=src%2Fnetwork.c;h=0000000000000000000000000000000000000000;hp=053e309f4f750403c15bec1c723dcefd3099a4c1;hb=21a073b6e9d464f3f11dfb290d27341bb4a203b6;hpb=40031b2d692a7b83e437535045ece6c58f8bf31e

diff --git a/src/network.c b/src/network.c
deleted file mode 100644
index 053e309..0000000
--- a/src/network.c
+++ /dev/null
@@ -1,361 +0,0 @@
-/* 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;
-}