original files of m241

vxworks-6.9/target/src/boot/bootTftpLoad.c

@@ -0,0 +1,167 @@
+/* bootTftpLoad.c - Boot loader application TFTP file load support component */
+
+/* 
+*  Copyright (c) 2005, 2007, 2009-2010, 2014 Wind River Systems, Inc.
+* 
+* The right to copy, distribute, modify or otherwise make use
+* of this software may be licensed only pursuant to the terms
+* of an applicable Wind River license agreement.
+*/
+
+/*
+modification history
+--------------------
+07jul14,p_x  Fix overrun issue in dataBuf[num]
+01e,02mar10,pgh  Save ELF file class ELF32 or ELF64
+01d,11dec09,pgh  64-bit conversion
+01c,29apr09,pgh  Update documentation.
+01d,21apr09,hps  LP64: move drv_val_t to private header iosLibP.h
+01c,14apr09,hps  LP64: iosFdValue now returns drv_val_t
+01b,06feb07,jmt  Add bootAppPrintf to optimize size
+01a,11jul05,jmt  written
+*/
+
+/*
+DESCRIPTION
+This module contains the support routines for the VxWorks bootrom loader application 
+TFTP file load component.  This module is added to the boot loader application when 
+the INCLUDE_BOOT_TFTP_LOADER component is included.  This module consists of 
+an initialization routine for the TFTP file load component, and the TFTP file 
+load handler.  The TFTP file load handler is installed by initializing the 
+bootTftpLoaderFcn function pointer with the address of the TFTP file load 
+handler.  The bootTftpLoaderFcn function pointer is executed by the 
+bootNetLoad.c module when this routine pointer is not NULL.
+
+INCLUDE FILES: bootApp.h vxWorks.h 
+*/ 
+
+/* includes */
+
+#include <vxWorks.h>
+#include <bootLib.h>
+#include <bootLoadLib.h>
+#include <ioLib.h>
+#include <iosLib.h>
+#include <private/iosLibP.h>
+#include <tftpLib.h>
+
+#include <bootApp.h>
+#include <bootNetLoad.h>
+
+/* defines */
+
+#define DATA_BUF_SIZE   512
+
+/* typedefs */
+
+/* globals */
+
+extern bootNetLoadPrototype * bootTftpLoaderFcn;
+extern int bootElfClass;        /* ELF file class: ELF32 or ELF64 */
+
+/* forward declarations */
+
+void bootTftpLoadInit(void);
+LOCAL STATUS bootTftpLoad (char *hostName, char *fileName, char *usr,
+                            char *passwd,  void **pEntry);
+
+
+/*******************************************************************************
+*
+* bootTftpLoadInit - Initialize TFTP file load component
+*
+* This routine initializes the boot loader application TFTP file load 
+* component, by registering the TFTP file load handler with the bootNetLoad.c
+* module.
+* 
+* RETURNS: N/A
+*
+* ERRNO: N/A
+*
+* \NOMANUAL
+*/
+
+void bootTftpLoadInit()
+    {
+    /* setup TFTP Loader function pointer */
+    bootTftpLoaderFcn = (bootNetLoadPrototype *) bootTftpLoad;
+    }
+
+/*******************************************************************************
+*
+* bootTftpLoad - Load a file from a remote host via TFTP.
+*
+* This routine is the TFTP file load handler that is registered with the boot
+* loader application to load files from a remote host machine via the TFTP 
+* protocol.  This routine uses the TFTP protocol to load the file specified 
+* by the boot parameters from the remote host machine specified by the boot 
+* parameters.
+*
+* RETURNS: 
+*   OK if the file is loaded via TFTP
+*   ERROR if the file does not exist on the remote host, or the transfer failed
+*
+* ERRNO: N/A
+*
+* \NOMANUAL
+*/
+
+LOCAL STATUS bootTftpLoad
+    (
+    char *  hostName,
+    char *  fileName,
+    char *  usr,
+    char *  passwd,
+    void ** pEntry
+    )
+    {
+    STATUS  rtv = OK;
+    int     fd;
+    int     errFd;      /* for receiving standard error messages from Unix */
+    int     num;
+    char    dataBuf [DATA_BUF_SIZE];
+
+    rtv = tftpXfer (hostName, 0, fileName, "get", "binary", &fd, &errFd);
+    if (rtv == ERROR)
+        {
+        bootAppPrintf("TFTP transfer failed\n",0,0,0,0,0,0);
+        return (ERROR);
+        }
+
+    rtv = bootLoadModule (fd, pEntry, &bootElfClass);
+    if (rtv != OK)
+        {
+    	bootAppPrintf("File load failed\n",0,0,0,0,0,0);
+        goto readErr;
+        }
+		
+    /*
+     * Discard any remaining data from the TFTP server.
+     */
+
+    while (read (fd, dataBuf, sizeof (dataBuf)) > 0)
+        {
+        }
+    close (fd);
+
+readErr:
+    /*
+    * Get and display any error messages from TFTP server.
+    */
+
+    num = (int)read (errFd, dataBuf, sizeof (dataBuf));
+    if (num > 0)
+        {
+        int dataBufSize = sizeof (dataBuf);
+
+        if (num < dataBufSize)
+            dataBuf[num] = '\0';
+        else
+            dataBuf[dataBufSize - 1] = '\0';
+
+        bootAppPrintf("TFTP error: %s\n",(_Vx_usr_arg_t)dataBuf,0,0,0,0,0);
+        }
+    close (errFd);
+    return (rtv);
+    }
+