Remove emulate.c on branch, since it is no longer being used.

1 files changed, 0 insertions, 636 deletions

diff --git a/security/nss/lib/ssl/emulate.c b/security/nss/lib/ssl/emulate.c
deleted file mode 100644
index a381cd7d2..000000000
--- a/security/nss/lib/ssl/emulate.c
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- * Functions that emulate PR_AcceptRead and PR_TransmitFile for SSL sockets.
- * Each Layered NSPR protocol (like SSL) must unfortunately contain its 
- * own implementation of these functions.  This code was taken from NSPR.
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1994-2000
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-/* $Id$ */
-
-#include "nspr.h"
-
-#if defined( XP_UNIX ) || defined( XP_BEOS )
-#include <fcntl.h>
-#endif
-#if defined(WIN32)
-#include <windef.h>
-#include <winbase.h>
-#endif
-#include <string.h>
-
-#define AMASK 7	/* mask for alignment of PRNetAddr */
-
-/*
- * _PR_EmulateAcceptRead
- *
- *  Accept an incoming connection on sd, set *nd to point to the
- *  newly accepted socket, read 'amount' bytes from the accepted
- *  socket.
- *
- *  buf is a buffer of length = amount + (2 * sizeof(PRNetAddr)) + 32
- *  *raddr points to the PRNetAddr of the accepted connection upon
- *  return
- *
- *  return number of bytes read or -1 on error
- *
- */
-PRInt32 
-ssl_EmulateAcceptRead(	PRFileDesc *   sd, 
-			PRFileDesc **  nd,
-			PRNetAddr **   raddr, 
-			void *         buf, 
-			PRInt32        amount, 
-			PRIntervalTime timeout)
-{
-    PRFileDesc *   newsockfd;
-    PRInt32        rv;
-    PRNetAddr      remote;
-
-    if (!(newsockfd = PR_Accept(sd, &remote, PR_INTERVAL_NO_TIMEOUT))) {
-	return -1;
-    }
-
-    rv = PR_Recv(newsockfd, buf, amount, 0, timeout);
-    if (rv >= 0) {
-	ptrdiff_t pNetAddr = (((ptrdiff_t)buf) + amount + AMASK) & ~AMASK;
-
-	*nd = newsockfd;
-	*raddr = (PRNetAddr *)pNetAddr;
-	memcpy((void *)pNetAddr, &remote, sizeof(PRNetAddr));
-	return rv;
-    }
-
-    PR_Close(newsockfd);
-    return -1;
-}
-
-
-#if !defined( XP_UNIX ) && !defined( WIN32 ) && !defined( XP_BEOS )
-/*
- * _PR_EmulateTransmitFile
- *
- *  Send file fd across socket sd. If headers is non-NULL, 'hlen'
- *  bytes of headers is sent before sending the file.
- *
- *  PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
- *
- *  return number of bytes sent or -1 on error
- *
- */
-#define _TRANSMITFILE_BUFSIZE	(16 * 1024)
-
-PRInt32 
-ssl_EmulateTransmitFile(    PRFileDesc *        sd, 
-			    PRFileDesc *        fd,
-			    const void *        headers, 
-			    PRInt32             hlen, 
-			    PRTransmitFileFlags flags,
-			    PRIntervalTime      timeout)
-{
-    char *  buf 	= NULL;
-    PRInt32 count 	= 0;
-    PRInt32 rlen;
-    PRInt32 rv;
-
-    buf = PR_MALLOC(_TRANSMITFILE_BUFSIZE);
-    if (buf == NULL) {
-	PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
-	return -1;
-    }
-
-    /*
-     * send headers, first
-     */
-    while (hlen) {
-	rv =  PR_Send(sd, headers, hlen, 0, timeout);
-	if (rv < 0) {
-	    /* PR_Send() has invoked PR_SetError(). */
-	    rv = -1;
-	    goto done;
-	} 
-	count += rv;
-	headers = (const void*) ((const char*)headers + rv);
-	hlen -= rv;
-    }
-    /*
-     * send file, next
-     */
-    while ((rlen = PR_Read(fd, buf, _TRANSMITFILE_BUFSIZE)) > 0) {
-	while (rlen) {
-	    char *bufptr = buf;
-
-	    rv =  PR_Send(sd, bufptr, rlen,0,PR_INTERVAL_NO_TIMEOUT);
-	    if (rv < 0) {
-		/* PR_Send() has invoked PR_SetError(). */
-		rv = -1;
-		goto done;
-	    } 
-	    count += rv;
-	    bufptr = ((char*)bufptr + rv);
-	    rlen -= rv;
-	}
-    }
-    if (rlen == 0) {
-	/*
-	 * end-of-file
-	 */
-	if (flags & PR_TRANSMITFILE_CLOSE_SOCKET)
-	    PR_Close(sd);
-	rv = count;
-    } else {
-	PR_ASSERT(rlen < 0);
-	/* PR_Read() has invoked PR_SetError(). */
-	rv = -1;
-    }
-
-done:
-    if (buf)
-	PR_DELETE(buf);
-    return rv;
-}
-#else
-
-#define TRANSMITFILE_MMAP_CHUNK (256 * 1024)
-
-/*
- * _PR_UnixTransmitFile
- *
- *  Send file fd across socket sd. If headers is non-NULL, 'hlen'
- *  bytes of headers is sent before sending the file.
- *
- *  PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
- *
- *  return number of bytes sent or -1 on error
- *
- */
-
-PRInt32 
-ssl_EmulateTransmitFile(    PRFileDesc *        sd, 
-			    PRFileDesc *        fd,
-			    const void *        headers, 
-			    PRInt32             hlen, 
-			    PRTransmitFileFlags flags,
-			    PRIntervalTime      timeout)
-{
-    void *            addr = NULL;
-    PRFileMap *       mapHandle = NULL;
-    PRInt32           count     = 0;
-    PRInt32           index     = 0;
-    PRInt32           len	= 0;
-    PRInt32           rv;
-    struct PRFileInfo info;
-    struct PRIOVec    iov[2];
-
-    /* Get file size */
-    if (PR_SUCCESS != PR_GetOpenFileInfo(fd, &info)) {
-	count = -1;
-	goto done;
-    }
-    if (hlen) {
-	iov[index].iov_base = (char *) headers;
-	iov[index].iov_len  = hlen;
-	index++;
-    }
-    if (info.size > 0) {
-	mapHandle = PR_CreateFileMap(fd, info.size, PR_PROT_READONLY);
-	if (mapHandle == NULL) {
-	    count = -1;
-	    goto done;
-	}
-	/*
-	 * If the file is large, mmap and send the file in chunks so as
-	 * to not consume too much virtual address space
-	 */
-	len = PR_MIN(info.size , TRANSMITFILE_MMAP_CHUNK );
-	/*
-	 * Map in (part of) file. Take care of zero-length files.
-	 */
-	if (len) {
-	    addr = PR_MemMap(mapHandle, 0, len);
-	    if (addr == NULL) {
-		count = -1;
-		goto done;
-	    }
-	}
-	iov[index].iov_base = (char*)addr;
-	iov[index].iov_len = len;
-	index++;
-    }
-    if (!index)
-    	goto done;
-    rv = PR_Writev(sd, iov, index, timeout);
-    if (len) {
-	PR_MemUnmap(addr, len);
-    }
-    if (rv >= 0) {
-	PR_ASSERT(rv == hlen + len);
-	info.size -= len;
-	count     += rv;
-    } else {
-	count = -1;
-	goto done;
-    }
-    /*
-     * send remaining bytes of the file, if any
-     */
-    len = PR_MIN(info.size , TRANSMITFILE_MMAP_CHUNK );
-    while (len > 0) {
-	/*
-	 * Map in (part of) file
-	 */
-	PR_ASSERT((count - hlen) % TRANSMITFILE_MMAP_CHUNK == 0);
-	addr = PR_MemMap(mapHandle, count - hlen, len);
-	if (addr == NULL) {
-	    count = -1;
-	    goto done;
-	}
-	rv =  PR_Send(sd, addr, len, 0, timeout);
-	PR_MemUnmap(addr, len);
-	if (rv >= 0) {
-	    PR_ASSERT(rv == len);
-	    info.size -= rv;
-	    count     += rv;
-	    len = PR_MIN(info.size , TRANSMITFILE_MMAP_CHUNK );
-	} else {
-	    count = -1;
-	    goto done;
-	}
-    }
-done:
-    if ((count >= 0) && (flags & PR_TRANSMITFILE_CLOSE_SOCKET))
-	PR_Close(sd);
-    if (mapHandle != NULL)
-    	PR_CloseFileMap(mapHandle);
-    return count;
-}
-#endif  /* XP_UNIX || WIN32 || XP_BEOS */
-
-
-
-
-#if !defined( XP_UNIX ) && !defined( WIN32 ) && !defined( XP_BEOS )
-/*
- * _PR_EmulateSendFile
- *
- *  Send file sfd->fd across socket sd. The header and trailer buffers
- *  specified in the 'sfd' argument are sent before and after the file,
- *  respectively.
- *
- *  PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
- *
- *  return number of bytes sent or -1 on error
- *
- */
-
-PRInt32 
-ssl_EmulateSendFile(PRFileDesc *sd, PRSendFileData *sfd,
-                    PRTransmitFileFlags flags, PRIntervalTime timeout)
-{
-    char *       buf = NULL;
-    const void * buffer;
-    PRInt32      rv;
-    PRInt32      count = 0;
-    PRInt32      rlen;
-    PRInt32      buflen;
-    PRInt32      sendbytes;
-    PRInt32      readbytes;
-
-#define _SENDFILE_BUFSIZE   (16 * 1024)
-
-    buf = (char*)PR_MALLOC(_SENDFILE_BUFSIZE);
-    if (buf == NULL) {
-        PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
-        return -1;
-    }
-
-    /*
-     * send header, first
-     */
-    buflen = sfd->hlen;
-    buffer = sfd->header;
-    while (buflen) {
-        rv =  PR_Send(sd, buffer, buflen, 0, timeout);
-        if (rv < 0) {
-            /* PR_Send() has invoked PR_SetError(). */
-            rv = -1;
-            goto done;
-        } else {
-            count += rv;
-            buffer = (const void*) ((const char*)buffer + rv);
-            buflen -= rv;
-        }
-    }
-    /*
-     * send file, next
-     */
-
-    if (PR_Seek(sfd->fd, sfd->file_offset, PR_SEEK_SET) < 0) {
-        rv = -1;
-        goto done;
-    }
-    sendbytes = sfd->file_nbytes;
-    if (sendbytes == 0) {
-        /* send entire file */
-        while ((rlen = PR_Read(sfd->fd, buf, _SENDFILE_BUFSIZE)) > 0) {
-            while (rlen) {
-                char *bufptr = buf;
-
-                rv =  PR_Send(sd, bufptr, rlen, 0, timeout);
-                if (rv < 0) {
-                    /* PR_Send() has invoked PR_SetError(). */
-                    rv = -1;
-                    goto done;
-                } else {
-                    count += rv;
-                    bufptr = ((char*)bufptr + rv);
-                    rlen -= rv;
-                }
-            }
-        }
-        if (rlen < 0) {
-            /* PR_Read() has invoked PR_SetError(). */
-            rv = -1;
-            goto done;
-        }
-    } else {
-        readbytes = PR_MIN(sendbytes, _SENDFILE_BUFSIZE);
-        while (readbytes && ((rlen = PR_Read(sfd->fd, buf, readbytes)) > 0)) {
-            while (rlen) {
-                char *bufptr = buf;
-
-                rv =  PR_Send(sd, bufptr, rlen, 0, timeout);
-                if (rv < 0) {
-                    /* PR_Send() has invoked PR_SetError(). */
-                    rv = -1;
-                    goto done;
-                } else {
-                    count += rv;
-                    sendbytes -= rv;
-                    bufptr = ((char*)bufptr + rv);
-                    rlen -= rv;
-                }
-            }
-	    readbytes = PR_MIN(sendbytes, _SENDFILE_BUFSIZE);
-        }
-        if (rlen < 0) {
-            /* PR_Read() has invoked PR_SetError(). */
-            rv = -1;
-            goto done;
-        } else if (sendbytes != 0) {
-            /*
-             * there are fewer bytes in file to send than specified
-             */
-	    PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
-            rv = -1;
-            goto done;
-        }
-    }
-    /*
-     * send trailer, last
-     */
-    buflen = sfd->tlen;
-    buffer = sfd->trailer;
-    while (buflen) {
-        rv =  PR_Send(sd, buffer, buflen, 0, timeout);
-        if (rv < 0) {
-            /* PR_Send() has invoked PR_SetError(). */
-            rv = -1;
-            goto done;
-        } else {
-            count += rv;
-            buffer = (const void*) ((const char*)buffer + rv);
-            buflen -= rv;
-        }
-    }
-    rv = count;
-
-done:
-    if (buf)
-        PR_DELETE(buf);
-    if ((rv >= 0) && (flags & PR_TRANSMITFILE_CLOSE_SOCKET))
-	PR_Close(sd);
-    return rv;
-}
-
-#else /* UNIX, NT, and BEOS handled below */
-
-/*
- * _PR_UnixSendFile
- *
- *    Send file sfd->fd across socket sd. If header/trailer are specified
- *    they are sent before and after the file, respectively.
- *
- *    PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
- *
- *    return number of bytes sent or -1 on error
- *
- */
-#define SENDFILE_MMAP_CHUNK    (256 * 1024)
-
-PRInt32 
-ssl_EmulateSendFile(PRFileDesc *sd, PRSendFileData *sfd,
-                    PRTransmitFileFlags flags, PRIntervalTime timeout)
-{
-    void *            addr = NULL;
-    PRFileMap *       mapHandle  	= NULL;
-    PRInt32           count 		= 0;
-    PRInt32           file_bytes;
-    PRInt32           index 		= 0;
-    PRInt32           len;
-    PRInt32           rv;
-    PRUint32          addr_offset;
-    PRUint32          file_mmap_offset;
-    PRUint32          mmap_len;
-    PRUint32          pagesize;
-    struct PRFileInfo info;
-    struct PRIOVec    iov[3];
-
-    /* Get file size */
-    if (PR_SUCCESS != PR_GetOpenFileInfo(sfd->fd, &info)) {
-	count = -1;
-	goto done;
-    }
-    if (sfd->file_nbytes && 
-		(info.size < (sfd->file_offset + sfd->file_nbytes))) {
-        /*
-         * there are fewer bytes in file to send than specified
-         */
-	PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
-        count = -1;
-        goto done;
-    }
-    if (sfd->file_nbytes)
-        file_bytes = sfd->file_nbytes;
-    else
-        file_bytes = info.size - sfd->file_offset;
-
-#if defined(WIN32)
-    {
-        SYSTEM_INFO sysinfo;
-        GetSystemInfo(&sysinfo);
-        pagesize = sysinfo.dwAllocationGranularity;
-    }
-#else
-    pagesize = PR_GetPageSize();
-#endif
-    /*
-     * If the file is large, mmap and send the file in chunks so as
-     * to not consume too much virtual address space
-     */
-    if (!sfd->file_offset || !(sfd->file_offset & (pagesize - 1))) {
-        /*
-         * case 1: page-aligned file offset
-         */
-        mmap_len = PR_MIN(file_bytes, SENDFILE_MMAP_CHUNK);
-        len      = mmap_len;
-        file_mmap_offset = sfd->file_offset;
-        addr_offset = 0;
-    } else {
-        /*
-         * case 2: non page-aligned file offset
-         */
-        /* find previous page boundary */
-        file_mmap_offset = (sfd->file_offset & ~(pagesize - 1));
-
-        /* number of initial bytes to skip in mmap'd segment */
-        addr_offset = sfd->file_offset - file_mmap_offset;
-        PR_ASSERT(addr_offset > 0);
-        mmap_len = PR_MIN(file_bytes + addr_offset, SENDFILE_MMAP_CHUNK);
-        len      = mmap_len - addr_offset;
-    }
-    /*
-     * OK I've convinced myself that length has to be possitive (file_bytes is 
-     * negative or  SENDFILE_MMAP_CHUNK is less than pagesize). Just assert 
-     * that this is the case so we catch problems in debug builds.
-     */
-    PR_ASSERT(len >= 0);
-
-    /*
-     * Map in (part of) file. Take care of zero-length files.
-     */
-    if (len > 0) {
-	mapHandle = PR_CreateFileMap(sfd->fd, info.size, PR_PROT_READONLY);
-	if (!mapHandle) {
-	    count = -1;
-	    goto done;
-	}
-	addr = PR_MemMap(mapHandle, file_mmap_offset, mmap_len);
-        if (!addr) {
-            count = -1;
-            goto done;
-        }
-    }
-    /*
-     * send headers, first, followed by the file
-     */
-    if (sfd->hlen) {
-        iov[index].iov_base = (char *) sfd->header;
-        iov[index].iov_len  = sfd->hlen;
-        index++;
-    }
-    if (len) {
-        iov[index].iov_base = (char*)addr + addr_offset;
-        iov[index].iov_len  = len;
-        index++;
-    }
-    if ((file_bytes == len) && (sfd->tlen)) {
-        /*
-         * all file data is mapped in; send the trailer too
-         */
-        iov[index].iov_base = (char *) sfd->trailer;
-        iov[index].iov_len  = sfd->tlen;
-        index++;
-    }
-    rv = PR_Writev(sd, iov, index, timeout);
-    if (len)
-        PR_MemUnmap(addr, mmap_len);
-    if (rv < 0) {
-        count = -1;
-        goto done;
-    }
-
-    PR_ASSERT(rv == sfd->hlen + len + ((len == file_bytes) ? sfd->tlen : 0));
-
-    file_bytes -= len;
-    count      += rv;
-    if (!file_bytes)    /* header, file and trailer are sent */
-	goto done;
-
-    /*
-     * send remaining bytes of the file, if any
-     */
-    len = PR_MIN(file_bytes, SENDFILE_MMAP_CHUNK);
-    while (len > 0) {
-	/*
-	 * Map in (part of) file
-	 */
-	file_mmap_offset = sfd->file_offset + count - sfd->hlen;
-	PR_ASSERT((file_mmap_offset % pagesize) == 0);
-
-	addr = PR_MemMap(mapHandle, file_mmap_offset, len);
-        if (!addr) {
-            count = -1;
-            goto done;
-        }
-	rv = PR_Send(sd, addr, len, 0, timeout);
-	PR_MemUnmap(addr, len);
-	if (rv < 0) {
-	    count = -1;
-	    goto done;
-	}
-
-	PR_ASSERT(rv == len);
-	file_bytes -= rv;
-	count      += rv;
-	len = PR_MIN(file_bytes, SENDFILE_MMAP_CHUNK);
-    }
-    PR_ASSERT(0 == file_bytes);
-    if (sfd->tlen) {
-        rv =  PR_Send(sd, sfd->trailer, sfd->tlen, 0, timeout);
-        if (rv >= 0) {
-            PR_ASSERT(rv == sfd->tlen);
-            count += rv;
-        } else
-            count = -1;
-    }
-done:
-    if (mapHandle)
-    	PR_CloseFileMap(mapHandle);
-    if ((count >= 0) && (flags & PR_TRANSMITFILE_CLOSE_SOCKET))
-	PR_Close(sd);
-    return count;
-}
-#endif /* UNIX, NT, and BEOS */