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96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
22 years ago
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#include "socket.h"
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#include "io.h"
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#include "buffer.h"
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#include "ip6.h"
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#include <errno.h>
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main() {
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int s=socket_tcp6();
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uint32 scope_id;
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char ip[16];
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uint16 port;
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if (socket_bind6_reuse(s,V6any,1234,0)==-1) return 111;
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if (socket_listen(s,16)==-1) return 111;
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io_nonblock(s);
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if (!io_fd(s)) return 111;
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io_wantread(s);
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buffer_puts(buffer_2,"listening on port 1234 (fd #");
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buffer_putulong(buffer_2,s);
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buffer_putsflush(buffer_2,")\n");
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for (;;) {
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int64 i;
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io_wait();
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buffer_putsflush(buffer_2,"io_wait() returned!\n");
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while ((i=io_canread())!=-1) {
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if (i==s) {
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int n;
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while ((n=socket_accept6(s,ip,&port,&scope_id))!=-1) {
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char buf[IP6_FMT];
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buffer_puts(buffer_2,"accepted new connection from ");
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buffer_put(buffer_2,buf,fmt_ip6(buf,ip));
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buffer_puts(buffer_2,":");
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buffer_putulong(buffer_2,port);
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buffer_puts(buffer_2," (fd ");
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buffer_putulong(buffer_2,n);
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buffer_puts(buffer_2,")");
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if (io_fd(n)) {
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io_wantread(n);
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} else {
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buffer_puts(buffer_2,", but io_fd failed.");
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io_close(n);
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}
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buffer_putnlflush(buffer_2);
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}
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if (errno!=EAGAIN) {
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buffer_puts(buffer_2,"socket_accept6: ");
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buffer_puterror(buffer_2);
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buffer_putnlflush(buffer_2);
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}
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} else {
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char buf[1024];
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int l=io_tryread(i,buf,sizeof buf);
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if (l==-1) {
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buffer_puts(buffer_2,"io_tryread(");
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buffer_putulong(buffer_2,i);
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buffer_puts(buffer_2,"): ");
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buffer_puterror(buffer_2);
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buffer_putnlflush(buffer_2);
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io_close(i);
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} else if (l==0) {
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buffer_puts(buffer_2,"eof on fd #");
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buffer_putulong(buffer_2,i);
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buffer_putnlflush(buffer_2);
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io_close(i);
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} else {
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int r;
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switch (r=io_trywrite(i,buf,l)) {
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case -1:
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buffer_puts(buffer_2,"io_tryread(");
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buffer_putulong(buffer_2,i);
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buffer_puts(buffer_2,"): ");
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buffer_puterror(buffer_2);
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buffer_putnlflush(buffer_2);
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io_close(i);
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break;
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case 0:
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buffer_puts(buffer_2,"write eof on fd #");
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buffer_putulong(buffer_2,i);
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buffer_putnlflush(buffer_2);
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io_close(i);
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default:
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if (r!=l) {
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buffer_puts(buffer_2,"short write on fd #");
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buffer_putulong(buffer_2,i);
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buffer_puts(buffer_2,": wrote ");
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buffer_putulong(buffer_2,r);
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buffer_puts(buffer_2,", wanted to write ");
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buffer_putulong(buffer_2,l);
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buffer_putsflush(buffer_2,").\n");
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}
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}
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}
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}
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}
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}
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}
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