| version 1.80, 2016/08/18 16:23:06 |
version 1.81, 2016/08/20 20:18:42 |
|
|
| * FTP User Program -- Misc support routines |
* FTP User Program -- Misc support routines |
| */ |
*/ |
| #include <sys/ioctl.h> |
#include <sys/ioctl.h> |
| |
#include <sys/socket.h> |
| #include <sys/time.h> |
#include <sys/time.h> |
| #include <arpa/ftp.h> |
#include <arpa/ftp.h> |
| |
|
|
|
| #endif /* !SMALL */ |
#endif /* !SMALL */ |
| |
|
| /* |
/* |
| * Wrapper for connect(2) that restarts the syscall when |
* Wait for an asynchronous connect(2) attempt to finish. |
| * interrupted and operates synchronously. |
|
| */ |
*/ |
| int |
int |
| connect_sync(int s, const struct sockaddr *name, socklen_t namelen) |
connect_wait(int s) |
| { |
{ |
| struct pollfd pfd[1]; |
struct pollfd pfd[1]; |
| int error = 0; |
int error = 0; |
| socklen_t len = sizeof(error); |
socklen_t len = sizeof(error); |
| |
|
| if (connect(s, name, namelen) < 0) { |
|
| if (errno != EINTR) |
|
| return -1; |
|
| } |
|
| |
|
| /* An interrupted connect(2) continues asyncronously. */ |
|
| pfd[0].fd = s; |
pfd[0].fd = s; |
| pfd[0].events = POLLOUT; |
pfd[0].events = POLLOUT; |
| for (;;) { |
|
| if (poll(pfd, 1, -1) == -1) { |
if (poll(pfd, 1, -1) == -1) |
| if (errno != EINTR) |
return -1; |
| return -1; |
if (getsockopt(s, SOL_SOCKET, SO_ERROR, &error, &len) < 0) |
| continue; |
return -1; |
| } |
if (error != 0) { |
| if (getsockopt(s, SOL_SOCKET, SO_ERROR, &error, &len) < 0) |
errno = error; |
| return -1; |
return -1; |
| if (error != 0) |
|
| errno = error; |
|
| break; |
|
| } |
} |
| return (error ? -1 : 0); |
return 0; |
| } |
} |
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