diff options
Diffstat (limited to 'libirc.c')
-rw-r--r-- | libirc.c | 114 |
1 files changed, 50 insertions, 64 deletions
@@ -14,81 +14,63 @@ //#define DEBUG "epoch" //nick or channel to send debug info to. #define CHUNK 4096 -int main(int argc,char *argv[]) { - return 0; -} +//int main(int argc,char *argv[]) { +// return 0; +//} + +#define SILLYLIMIT 1024 int serverConnect(char *serv,char *port) { - int rv; - int fd=0; + int fd=-1; int s[2]; int pid; + int try_ipv4; char *name[3]; + char buf[SILLYLIMIT]; struct addrinfo hints, *servinfo, *p=0; + struct hostent *he; + struct sockaddr_in saddr; + struct sockaddr_in6 saddr6; + printf("libirc: serverConnect: %s %s\n",serv,port); if(!serv || !port) return -1; - if(*serv != '|') { - memset(&hints,0,sizeof hints); - hints.ai_family=AF_INET; - hints.ai_socktype=SOCK_STREAM; - if((fd=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP)) < 0) { - perror("socket"); - return -1; - } - /* - for(try_ipv4=0;try_ipv4 < 2;try_ipv4++) { - if(!(he=gethostbyname2( - try_ipv4 - ?inet_aton(serv,&saddr) - ?inet_ntoa(saddr) - :serv - :inet_pton(AF_INET6,serv,&saddr6) - ?inet_ntop(AF_INET6,&saddr6,buf,SILLYLIMIT) - :serv - ,try_ipv4?AF_INET:AF_INET6))) return -1; - for(;*(he->h_addr_list);he->h_addr_list++) { - printf("trying to connect to %s:%s attempt #%d\n",serv,port,n); - n++; - */ - // if((rv=getaddrinfo(he->h_addr_list,port,&hints,&servinfo)) != 0) { - if((rv=getaddrinfo(serv,port,&hints,&servinfo)) != 0) { - fprintf(stderr,"error resolving '%s'.\n",serv); - return -1; - } - for(p=servinfo;p;p=p->ai_next) { - if(connect(fd,p->ai_addr, p->ai_addrlen) < 0) { - perror("connect"); - continue; - } else { - return fd; - } - } - //printf("trying a differnt address...\n"); - //} - //printf("trying a different AF...\n"); - //} - //printf("well, shit. how'd I get here?\n"); - return -1; - } else { + if(*serv == '|') { name[0]=serv+1; name[1]=port; name[2]=0; socketpair(PF_LOCAL,SOCK_STREAM,0,s); - switch(pid=fork()) { - case 0://child - close(0); - close(1); - //close(2); - dup(s[1]); - dup(s[1]); - //dup(s[1]); - execv(name[0],name); - case -1://error - return -1; - default://parent - return s[0]; + if(!(pid=fork())) { + dup2(s[1],0); + dup2(s[1],1); + execv(name[0],name); + } + if(pid == -1) return -1; + return s[0]; + } + memset(&hints,0,sizeof hints); + hints.ai_socktype=SOCK_STREAM; + hints.ai_protocol=IPPROTO_TCP; + for(try_ipv4=0;try_ipv4 < 2;try_ipv4++) { + hints.ai_family=try_ipv4?AF_INET:AF_INET6; + if(fd != -1) close(fd); + if((fd=socket(hints.ai_family,SOCK_STREAM,IPPROTO_TCP)) < 0) return -1; + if(!(he=gethostbyname2( + try_ipv4 + ?inet_aton(serv,&(saddr.sin_addr)) + ?inet_ntoa(saddr.sin_addr) + :serv + :inet_pton(AF_INET6,serv,&(saddr6.sin6_addr)) + ?inet_ntop(AF_INET6,&(saddr6.sin6_addr),buf,SILLYLIMIT) + :serv + ,hints.ai_family))) continue; + for(;*(he->h_addr_list);(he->h_addr_list)++) { + inet_ntop(hints.ai_family,*(he->h_addr_list),buf,SILLYLIMIT); + if(!getaddrinfo(buf,port,&hints,&servinfo)) + for(p=servinfo;p;p=p->ai_next) + if(connect(fd,p->ai_addr, p->ai_addrlen) < 0) continue; else return fd; } - return -1; } + printf("I tried as hard as I could and couldn't connect to %s:%s\n",serv,port); + return -1; } int fdlen(int *fds) { @@ -138,8 +120,12 @@ int runem(int *fds,void (*line_handler)(),void (*extra_handler)()) { for(i=0;fds[i] != -1;i++) { if(FD_ISSET(fds[i],&readfs)) { if((n=recv(fds[i],buffers[i],CHUNK,0)) <= 0) {//read CHUNK bytes - fprintf(stderr,"recv: %d\n",n); - perror("recv"); + if(n) { + fprintf(stderr,"recv: %d\n",n); + perror("recv"); + } else { + fprintf(stderr,"connection closed. fd: %d\n",fds[i]); + } return 2; } else { buffers[i][n]=0;//deff right. |