src/server/netbuf.c

changeset 14
b8bf95b39952
parent 13
1fdbf4170ef4
child 15
cff9c4101dd7
--- a/src/server/netbuf.c	Sun Jan 08 15:46:47 2012 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,191 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
- *
- * THE BSD LICENSE
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * Neither the name of the  nor the names of its contributors may be
- * used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
- * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * netbuf.c: Handles buffered I/O on network sockets
- *
- * Rob McCool
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "nspr.h"
-#include "nsapi.h"
-#include "io.h"
-
-//include "buffer.h"
-
-
-#define NETBUF_RDTIMEOUT 120
-
-
-/* ----------------------------- netbuf_open ------------------------------ */
-
-
-NSAPI_PUBLIC netbuf *netbuf_open(SYS_NETFD sd, int sz) {
-    netbuf *buf = (netbuf *) malloc(sizeof(netbuf));
-
-    buf->rdtimeout = NETBUF_RDTIMEOUT;
-    buf->pos = sz;
-    buf->cursize = sz; /* force buffer_next on first getc */
-    buf->maxsize = sz;
-    buf->sd = sd;
-
-    buf->inbuf = NULL;
-    buf->errmsg = NULL;
-
-    return buf;
-}
-
-
-/* ----------------------------- netbuf_close ----------------------------- */
-
-
-NSAPI_PUBLIC void netbuf_close(netbuf *buf) {
-    if(buf->inbuf)
-        free(buf->inbuf);
-    free(buf);
-}
-
-
-/* ----------------------------- netbuf_replace --------------------------- */
-
-
-NSAPI_PUBLIC unsigned char * netbuf_replace(netbuf *buf,
-    unsigned char *inbuf, int pos, int cursize, int maxsize)
-{
-    unsigned char *oldbuf = buf->inbuf;
-
-    buf->inbuf = inbuf;
-    buf->pos = pos;
-    buf->cursize = cursize;
-    buf->maxsize = maxsize;
-
-    return oldbuf;
-}
-
-
-/* ----------------------------- netbuf_next ------------------------------ */
-
-
-NSAPI_PUBLIC int netbuf_next(netbuf *buf, int advance) {
-    int n;
-
-    if(!buf->inbuf)
-        buf->inbuf = (unsigned char *) malloc(buf->maxsize);
-
-    while(1) {
-        switch(n = net_read(buf->sd, (char *)(buf->inbuf), buf->maxsize)) {
-        //case IO_EOF:
-        case 0:
-            return IO_EOF;
-        case -1:
-            return IO_ERROR;
-        //case IO_ERROR:
-            //buf->errmsg = system_errmsg();
-        //    return IO_ERROR;
-        default:
-            buf->pos = advance;
-            buf->cursize = n;
-            return buf->inbuf[0];
-        }
-    }
-}
-
-NSAPI_PUBLIC int netbuf_getbytes(netbuf *buf, char *buffer, int size)
-{
-    int bytes;
-
-    if (!buf->inbuf) {
-        buf->inbuf = (unsigned char *) malloc(buf->maxsize);
-    } else {
-        if (buf->pos < buf->cursize) {
-            int bytes_in_buffer = buf->cursize - buf->pos;
-
-            if (bytes_in_buffer > size)
-                bytes_in_buffer = size;
-
-            memcpy(buffer, &(buf->inbuf[buf->pos]), bytes_in_buffer);
-
-            buf->pos += bytes_in_buffer;
-            return bytes_in_buffer;
-        }
-    }
-
-    /* The netbuf is empty.  Read data directly into the caller's buffer */
-    bytes = net_read(buf->sd, buffer, size);
-    if (bytes == 0)
-        return NETBUF_EOF;
-    if (bytes < 0) {
-        //buf->errmsg = system_errmsg();
-        return NETBUF_ERROR;
-    }
-    return bytes;
-}
-
-
-/* ----------------------------- netbuf_grab ------------------------------ */
-
-
-NSAPI_PUBLIC int netbuf_grab(netbuf *buf, int sz) {
-    int n;
-
-    if(!buf->inbuf) {
-        buf->inbuf = (unsigned char *) malloc(sz);
-        buf->maxsize = sz;
-    }
-    else if(sz > buf->maxsize) {
-        buf->inbuf = (unsigned char *) realloc(buf->inbuf, sz);
-        buf->maxsize = sz;
-    }
-
-    PR_ASSERT(buf->pos == buf->cursize);
-    buf->pos = 0;
-    buf->cursize = 0;
-
-    while(1) {
-        switch(n = net_read(buf->sd, (char *)(buf->inbuf), sz)) {
-        case 0:
-            return IO_EOF;
-        case -1: {
-            //buf->errmsg = system_errmsg();
-            return IO_ERROR;
-        }
-        default:
-            buf->cursize = n;
-            return n;
-        }
-    }
-}

mercurial