diff options
author | John Denker <jsd@av8n.com> | 2012-06-01 23:07:51 -0700 |
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committer | John Denker <jsd@av8n.com> | 2012-06-02 17:30:23 -0700 |
commit | 0d0f7a0e7c32842edff533246a1f8523306f9ab0 (patch) | |
tree | 43dbb2fffaa8d490731969f39f5d20832523bd5d /ucspi-tcp-0.88/timeoutconn.c | |
parent | 94c58d7f8cabd9b1ff4c33c57a6ff76cdf3f955e (diff) |
as downloaded : ucspi-tcp
Diffstat (limited to 'ucspi-tcp-0.88/timeoutconn.c')
-rw-r--r-- | ucspi-tcp-0.88/timeoutconn.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/ucspi-tcp-0.88/timeoutconn.c b/ucspi-tcp-0.88/timeoutconn.c new file mode 100644 index 0000000..2a8b0aa --- /dev/null +++ b/ucspi-tcp-0.88/timeoutconn.c @@ -0,0 +1,34 @@ +#include "ndelay.h" +#include "socket.h" +#include "iopause.h" +#include "error.h" +#include "timeoutconn.h" + +int timeoutconn(int s,char ip[4],uint16 port,unsigned int timeout) +{ + struct taia now; + struct taia deadline; + iopause_fd x; + + if (socket_connect4(s,ip,port) == -1) { + if ((errno != error_wouldblock) && (errno != error_inprogress)) return -1; + x.fd = s; + x.events = IOPAUSE_WRITE; + taia_now(&now); + taia_uint(&deadline,timeout); + taia_add(&deadline,&now,&deadline); + for (;;) { + taia_now(&now); + iopause(&x,1,&deadline,&now); + if (x.revents) break; + if (taia_less(&deadline,&now)) { + errno = error_timeout; /* note that connect attempt is continuing */ + return -1; + } + } + if (!socket_connected(s)) return -1; + } + + if (ndelay_off(s) == -1) return -1; + return 0; +} |