Update NSPR to 4.16

1 files changed, 172 insertions, 62 deletions

diff --git a/nsprpub/pr/src/pthreads/ptio.c b/nsprpub/pr/src/pthreads/ptio.c
index e4fe5198b..9dde03191 100644
--- a/nsprpub/pr/src/pthreads/ptio.c
+++ b/nsprpub/pr/src/pthreads/ptio.c
@@ -164,6 +164,9 @@ static ssize_t (*pt_aix_sendfile_fptr)() = NULL;
 #ifndef TCP_CORK
 #define TCP_CORK 3
 #endif
+#ifndef MSG_FASTOPEN
+#define MSG_FASTOPEN    0x20000000
+#endif
 #endif
 
 #ifdef _PR_IPV6_V6ONLY_PROBE
@@ -821,7 +824,7 @@ retry:
         op->arg3.amount -= bytes;  /* and reduce the required count */
         return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
     }
-    else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
+    if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
     {
         op->result.code = -1;
         return PR_TRUE;
@@ -850,7 +853,7 @@ static PRBool pt_write_cont(pt_Continuation *op, PRInt16 revents)
         op->arg3.amount -= bytes;  /* and reduce the required count */
         return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
     }
-    else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
+    if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
     {
         op->result.code = -1;
         return PR_TRUE;
@@ -892,7 +895,7 @@ static PRBool pt_writev_cont(pt_Continuation *op, PRInt16 revents)
         op->arg3.amount -= iov_index;  /* and array length */
         return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
     }
-    else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
+    if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
     {
         op->result.code = -1;
         return PR_TRUE;
@@ -915,7 +918,7 @@ static PRBool pt_sendto_cont(pt_Continuation *op, PRInt16 revents)
         op->arg3.amount -= bytes;  /* and reduce the required count */
         return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
     }
-    else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
+    if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
     {
         op->result.code = -1;
         return PR_TRUE;
@@ -1542,23 +1545,26 @@ static PRStatus pt_Connect(
     pt_SockLen addr_len;
 	const PRNetAddr *addrp = addr;
 #if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
-	PRUint16 md_af = addr->raw.family;
     PRNetAddr addrCopy;
 #endif
+#ifdef _PR_HAVE_SOCKADDR_LEN
+    PRUint16 md_af = addr->raw.family;
+#endif
 
     if (pt_TestAbort()) return PR_FAILURE;
 
     PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
     addr_len = PR_NETADDR_SIZE(addr);
-#if defined(_PR_INET6)
-	if (addr->raw.family == PR_AF_INET6) {
-		md_af = AF_INET6;
-#ifndef _PR_HAVE_SOCKADDR_LEN
-		addrCopy = *addr;
-		addrCopy.raw.family = AF_INET6;
-		addrp = &addrCopy;
+#ifdef _PR_INET6
+    if (addr->raw.family == PR_AF_INET6) {
+#ifdef _PR_HAVE_SOCKADDR_LEN
+        md_af = AF_INET6;
+#else
+        addrCopy = *addr;
+        addrCopy.raw.family = AF_INET6;
+        addrp = &addrCopy;
 #endif
-	}
+    }
 #endif
 
 #ifdef _PR_HAVE_SOCKADDR_LEN
@@ -1732,9 +1738,11 @@ static PRStatus pt_Bind(PRFileDesc *fd, const PRNetAddr *addr)
     pt_SockLen addr_len;
 	const PRNetAddr *addrp = addr;
 #if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
-	PRUint16 md_af = addr->raw.family;
     PRNetAddr addrCopy;
 #endif
+#ifdef _PR_HAVE_SOCKADDR_LEN
+    PRUint16 md_af = addr->raw.family;
+#endif
 
     if (pt_TestAbort()) return PR_FAILURE;
 
@@ -1749,15 +1757,16 @@ static PRStatus pt_Bind(PRFileDesc *fd, const PRNetAddr *addr)
         }
     }
 
-#if defined(_PR_INET6)
-	if (addr->raw.family == PR_AF_INET6) {
-		md_af = AF_INET6;
-#ifndef _PR_HAVE_SOCKADDR_LEN
-		addrCopy = *addr;
-		addrCopy.raw.family = AF_INET6;
-		addrp = &addrCopy;
+#ifdef _PR_INET6
+    if (addr->raw.family == PR_AF_INET6) {
+#ifdef _PR_HAVE_SOCKADDR_LEN
+        md_af = AF_INET6;
+#else
+        addrCopy = *addr;
+        addrCopy.raw.family = AF_INET6;
+        addrp = &addrCopy;
 #endif
-	}
+    }
 #endif
 
     addr_len = PR_NETADDR_SIZE(addr);
@@ -1989,22 +1998,25 @@ static PRInt32 pt_SendTo(
     pt_SockLen addr_len;
 	const PRNetAddr *addrp = addr;
 #if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
-	PRUint16 md_af = addr->raw.family;
     PRNetAddr addrCopy;
 #endif
+#ifdef _PR_HAVE_SOCKADDR_LEN
+    PRUint16 md_af = addr->raw.family;
+#endif
 
     if (pt_TestAbort()) return bytes;
 
     PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
-#if defined(_PR_INET6)
-	if (addr->raw.family == PR_AF_INET6) {
-		md_af = AF_INET6;
-#ifndef _PR_HAVE_SOCKADDR_LEN
-		addrCopy = *addr;
-		addrCopy.raw.family = AF_INET6;
-		addrp = &addrCopy;
+#ifdef _PR_INET6
+    if (addr->raw.family == PR_AF_INET6) {
+#ifdef _PR_HAVE_SOCKADDR_LEN
+        md_af = AF_INET6;
+#else
+        addrCopy = *addr;
+        addrCopy.raw.family = AF_INET6;
+        addrp = &addrCopy;
 #endif
-	}
+    }
 #endif
 
     addr_len = PR_NETADDR_SIZE(addr);
@@ -2044,6 +2056,101 @@ static PRInt32 pt_SendTo(
     return bytes;
 }  /* pt_SendTo */
 
+#if defined(LINUX) || defined(DARWIN)
+/* Linux uses SendTo to send data during TCP Fast Open. OSX uses connectx, but
+ * we will make it imitate the Linux's interface. */
+static PRInt32 pt_TCP_SendTo(
+    PRFileDesc *fd, const void *buf,
+    PRInt32 amount, PRIntn flags, const PRNetAddr *addr,
+    PRIntervalTime timeout)
+{
+#if defined(LINUX) || HAS_CONNECTX
+    PRInt32 syserrno, bytes = -1;
+    PRBool fNeedContinue = PR_FALSE;
+    pt_SockLen addr_len;
+    const PRNetAddr *addrp = addr;
+#if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
+    PRNetAddr addrCopy;
+#endif
+#ifdef _PR_HAVE_SOCKADDR_LEN
+    PRUint16 md_af = addr->raw.family;
+#endif
+
+    if (pt_TestAbort()) return bytes;
+
+    PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
+    addr_len = PR_NETADDR_SIZE(addr);
+#if defined(_PR_INET6)
+    if (addr->raw.family == PR_AF_INET6) {
+#ifdef _PR_HAVE_SOCKADDR_LEN
+        md_af = AF_INET6;
+#else
+        /* If _PR_INET6 is defined and it is PR_AF_INET6 we set family
+         * to AF_INET6. */
+        addrCopy = *addr;
+        addrCopy.raw.family = AF_INET6;
+        addrp = &addrCopy;
+#endif
+    }
+#endif
+
+#ifdef _PR_HAVE_SOCKADDR_LEN
+    /* if _PR_HAVE_SOCKADDR_LEN is defined and it is PR_AF_INET6 we set family
+     * to AF_INET6 and we set address length. */
+    addrCopy = *addr;
+    ((struct sockaddr*)&addrCopy)->sa_len = addr_len;
+    ((struct sockaddr*)&addrCopy)->sa_family = md_af;
+    addrp = &addrCopy;
+#endif
+
+#ifndef HAS_CONNECTX
+    bytes = sendto(
+        fd->secret->md.osfd, buf, amount, MSG_FASTOPEN,
+        (struct sockaddr*)addrp, addr_len);
+#else
+    sa_endpoints_t endpoints;
+    endpoints.sae_srcif = 0;
+    endpoints.sae_srcaddr = NULL;
+    endpoints.sae_srcaddrlen = 0;
+    endpoints.sae_dstaddr = (struct sockaddr *)addrp;
+    endpoints.sae_dstaddrlen = addr_len;
+    struct iovec iov[1];
+    iov[0].iov_base = buf;
+    iov[0].iov_len = amount;
+    PRInt32 rv = connectx(fd->secret->md.osfd, &endpoints, SAE_ASSOCID_ANY,
+                         CONNECT_DATA_IDEMPOTENT, iov, 1, &bytes, NULL);
+#endif
+    syserrno = errno;
+    if ( (bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
+        && (!fd->secret->nonblocking) ) {
+        if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
+        else fNeedContinue = PR_TRUE;
+    }
+    if (fNeedContinue == PR_TRUE) {
+        pt_Continuation op;
+        op.arg1.osfd = fd->secret->md.osfd;
+        op.arg2.buffer = (void*)buf;
+        op.arg3.amount = amount;
+        op.arg4.flags = flags;
+        op.arg5.addr = (PRNetAddr*)addrp;
+        op.timeout = timeout;
+        op.result.code = 0;  /* initialize the number sent */
+        op.function = pt_sendto_cont;
+        op.event = POLLOUT | POLLPRI;
+        bytes = pt_Continue(&op);
+        syserrno = op.syserrno;
+    }
+    if (bytes < 0) {
+        pt_MapError(_PR_MD_MAP_SENDTO_ERROR, syserrno);
+    }
+    return bytes;
+#else /* !HAS_CONNECTX */
+    PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
+    return -1;
+#endif
+}  /* pt_TCP_SendTo */
+#endif /* LINUX || DARWIN */
+
 static PRInt32 pt_RecvFrom(PRFileDesc *fd, void *buf, PRInt32 amount,
     PRIntn flags, PRNetAddr *addr, PRIntervalTime timeout)
 {
@@ -2767,22 +2874,21 @@ static PRStatus pt_GetSockName(PRFileDesc *fd, PRNetAddr *addr)
     if (rv == -1) {
         pt_MapError(_PR_MD_MAP_GETSOCKNAME_ERROR, errno);
         return PR_FAILURE;
-    } else {
+    }
 #ifdef _PR_HAVE_SOCKADDR_LEN
-        /* ignore the sa_len field of struct sockaddr */
-        if (addr)
-        {
-            addr->raw.family = ((struct sockaddr*)addr)->sa_family;
-        }
+    /* ignore the sa_len field of struct sockaddr */
+    if (addr)
+    {
+        addr->raw.family = ((struct sockaddr*)addr)->sa_family;
+    }
 #endif /* _PR_HAVE_SOCKADDR_LEN */
 #ifdef _PR_INET6
-		if (AF_INET6 == addr->raw.family)
-			addr->raw.family = PR_AF_INET6;
+    if (AF_INET6 == addr->raw.family)
+        addr->raw.family = PR_AF_INET6;
 #endif
-        PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
-        PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
-        return PR_SUCCESS;
-    }
+    PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
+    PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
+    return PR_SUCCESS;
 }  /* pt_GetSockName */
 
 static PRStatus pt_GetPeerName(PRFileDesc *fd, PRNetAddr *addr)
@@ -2798,22 +2904,21 @@ static PRStatus pt_GetPeerName(PRFileDesc *fd, PRNetAddr *addr)
     if (rv == -1) {
         pt_MapError(_PR_MD_MAP_GETPEERNAME_ERROR, errno);
         return PR_FAILURE;
-    } else {
+    }
 #ifdef _PR_HAVE_SOCKADDR_LEN
-        /* ignore the sa_len field of struct sockaddr */
-        if (addr)
-        {
-            addr->raw.family = ((struct sockaddr*)addr)->sa_family;
-        }
+    /* ignore the sa_len field of struct sockaddr */
+    if (addr)
+    {
+        addr->raw.family = ((struct sockaddr*)addr)->sa_family;
+    }
 #endif /* _PR_HAVE_SOCKADDR_LEN */
 #ifdef _PR_INET6
-		if (AF_INET6 == addr->raw.family)
-        	addr->raw.family = PR_AF_INET6;
+    if (AF_INET6 == addr->raw.family)
+        addr->raw.family = PR_AF_INET6;
 #endif
-        PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
-        PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
-        return PR_SUCCESS;
-    }
+    PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
+    PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
+    return PR_SUCCESS;
 }  /* pt_GetPeerName */
 
 static PRStatus pt_GetSocketOption(PRFileDesc *fd, PRSocketOptionData *data)
@@ -3155,7 +3260,11 @@ static PRIOMethods _pr_tcp_methods = {
     pt_Recv,
     pt_Send,
     (PRRecvfromFN)_PR_InvalidInt,
+#if defined(LINUX) || defined(DARWIN)
+    pt_TCP_SendTo, /* This is for TCP Fast Open. Linux uses SendTo function for this. OSX uses connectx, but we imitate Linux. */
+#else
     (PRSendtoFN)_PR_InvalidInt,
+#endif
     pt_Poll,
     pt_AcceptRead,
     pt_TransmitFile,
@@ -3602,8 +3711,8 @@ PR_IMPLEMENT(PRStatus) PR_Delete(const char *name)
     if (rv == -1) {
         pt_MapError(_PR_MD_MAP_UNLINK_ERROR, errno);
         return PR_FAILURE;
-    } else
-        return PR_SUCCESS;
+    }
+    return PR_SUCCESS;
 }  /* PR_Delete */
 
 PR_IMPLEMENT(PRStatus) PR_Access(const char *name, PRAccessHow how)
@@ -3727,11 +3836,10 @@ PR_IMPLEMENT(PRStatus) PR_RmDir(const char *name)
 
     rv = rmdir(name);
     if (0 == rv) {
-    return PR_SUCCESS;
-    } else {
+        return PR_SUCCESS;
+    }
     pt_MapError(_PR_MD_MAP_RMDIR_ERROR, errno);
     return PR_FAILURE;
-    }
 }  /* PR_Rmdir */
 
 
@@ -3847,7 +3955,8 @@ static PRInt32 _pr_poll_with_poll(
                     /* now locate the NSPR layer at the bottom of the stack */
                     PRFileDesc *bottom = PR_GetIdentitiesLayer(
                         pds[index].fd, PR_NSPR_IO_LAYER);
-                    PR_ASSERT(NULL != bottom);  /* what to do about that? */
+                    /* ignore a socket without PR_NSPR_IO_LAYER available */
+
                     pds[index].out_flags = 0;  /* pre-condition */
                     if ((NULL != bottom)
                     && (_PR_FILEDESC_OPEN == bottom->secret->state))
@@ -4105,7 +4214,8 @@ static PRInt32 _pr_poll_with_select(
                     /* now locate the NSPR layer at the bottom of the stack */
                     PRFileDesc *bottom = PR_GetIdentitiesLayer(
                         pds[index].fd, PR_NSPR_IO_LAYER);
-                    PR_ASSERT(NULL != bottom);  /* what to do about that? */
+                    /* ignore a socket without PR_NSPR_IO_LAYER available */
+
                     pds[index].out_flags = 0;  /* pre-condition */
                     if ((NULL != bottom)
                     && (_PR_FILEDESC_OPEN == bottom->secret->state))