Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / modules / rosapps / applications / net / ncftp / sio / SRecvmsg.c

diff --git a/modules/rosapps/applications/net/ncftp/sio/SRecvmsg.c b/modules/rosapps/applications/net/ncftp/sio/SRecvmsg.c
new file mode 100644 (file)
index 0000000..6ed7e41
--- /dev/null
+++ b/modules/rosapps/applications/net/ncftp/sio/SRecvmsg.c
@@ -0,0 +1,137 @@
+#include "syshdrs.h"
+
+#ifndef NO_SIGNALS
+extern volatile Sjmp_buf gNetTimeoutJmp;
+extern volatile Sjmp_buf gPipeJmp;
+#endif
+
+#ifndef NO_SIGNALS
+
+int
+SRecvmsg(int sfd, void *const msg, int fl, int tlen)
+{
+       int nread, tleft;
+       vsio_sigproc_t sigalrm, sigpipe;
+       time_t done, now;
+
+       if (tlen < 0) {
+               errno = 0;
+               for (;;) {
+                       nread = recvmsg(sfd, (struct msghdr *) msg, fl);
+                       if ((nread >= 0) || (errno != EINTR))
+                               return (nread);
+               }
+       }
+
+       if (SSetjmp(gNetTimeoutJmp) != 0) {
+               alarm(0);
+               (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
+               (void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
+               errno = ETIMEDOUT;
+               return (kTimeoutErr);
+       }
+
+       if (SSetjmp(gPipeJmp) != 0) {
+               alarm(0);
+               (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
+               (void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
+               errno = EPIPE;
+               return (kBrokenPipeErr);
+       }
+
+       sigalrm = (vsio_sigproc_t) SSignal(SIGALRM, SIOHandler);
+       sigpipe = (vsio_sigproc_t) SSignal(SIGPIPE, SIOHandler);
+
+       time(&now);
+       done = now + tlen;
+       tleft = (int) (done - now);
+       forever {
+               (void) alarm((unsigned int) tleft);
+               nread = recvmsg(sfd, (struct msghdr *) msg, fl);
+               (void) alarm(0);
+               if (nread >= 0)
+                       break;
+               if (errno != EINTR)
+                       break;          /* Fatal error. */
+               errno = 0;
+               time(&now);
+               tleft = (int) (done - now);
+               if (tleft < 1) {
+                       nread = kTimeoutErr;
+                       errno = ETIMEDOUT;
+                       break;
+               }
+       }
+
+       (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
+       (void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
+
+       return (nread);
+}      /* SRecvmsg */
+
+#elif defined(HAVE_RECVMSG)
+
+int
+SRecvmsg(int sfd, void *const msg, int fl, int tlen)
+{
+       int nread, tleft;
+       time_t done, now;
+       fd_set ss;
+       struct timeval tv;
+       int result;
+
+       if (tlen < 0) {
+               errno = 0;
+               for (;;) {
+                       nread = recvmsg(sfd, (struct msghdr *) msg, fl);
+                       if ((nread >= 0) || (errno != EINTR))
+                               return (nread);
+               }
+       }
+
+       time(&now);
+       done = now + tlen;
+       tleft = (int) (done - now);
+       forever {
+
+               for (;;) {
+                       errno = 0;
+                       FD_ZERO(&ss);
+                       FD_SET(sfd, &ss);
+                       tv.tv_sec = tleft;
+                       tv.tv_usec = 0;
+                       result = select(sfd + 1, SELECT_TYPE_ARG234 &ss, NULL, NULL, SELECT_TYPE_ARG5 &tv);
+                       if (result == 1) {
+                               /* ready */
+                               break;
+                       } else if (result == 0) {
+                               /* timeout */
+                               errno = ETIMEDOUT;
+                               SETWSATIMEOUTERR
+                               return (kTimeoutErr);
+                       } else if (errno != EINTR) {
+                               return (-1);
+                       }
+               }
+
+               nread = recvmsg(sfd, (struct msghdr *) msg, fl);
+
+               if (nread >= 0)
+                       break;
+               if (errno != EINTR)
+                       break;          /* Fatal error. */
+               errno = 0;
+               time(&now);
+               tleft = (int) (done - now);
+               if (tleft < 1) {
+                       nread = kTimeoutErr;
+                       errno = ETIMEDOUT;
+                       SETWSATIMEOUTERR
+                       break;
+               }
+       }
+
+       return (nread);
+}      /* SRecvmsg */
+
+#endif