Increase possible file size for FW upgrades and avoid segfaults if still too big

Also close a file descriptor which gets opened, but never closed, compare with:
https://bugzilla.novell.com/show_bug.cgi?id=534909

Signed-off-by: Thomas Renninger <trenn@suse.de>

---
 lib/ipmi_fwum.c |   86 ++++++++++++++++++++++++++++++--------------------------
 1 file changed, 47 insertions(+), 39 deletions(-)

Index: ipmitool-1.8.11/lib/ipmi_fwum.c
===================================================================
--- ipmitool-1.8.11.orig/lib/ipmi_fwum.c
+++ ipmitool-1.8.11/lib/ipmi_fwum.c
@@ -141,7 +141,8 @@ typedef struct sKFWUM_SaveFirmwareInfo
 
 extern int verbose;
 static unsigned char fileName[512];
-static unsigned char firmBuf[1024*512];
+#define MAX_FW_FILE_SIZE 1024*512
+static unsigned char firmBuf[MAX_FW_FILE_SIZE];
 static tKFWUM_SaveFirmwareInfo saveFirmwareInfo;
 
 static void KfwumOutputHelp(void);
@@ -508,6 +509,12 @@ static tKFWUM_Status KfwumSetupBuffersFr
    tKFWUM_Status status = KFWUM_STATUS_OK;
    FILE * pFileHandle;
 
+   if(fileSize >= MAX_FW_FILE_SIZE)
+   {
+      printf("Error: Firmware file size exceeds %dK\n", MAX_FW_FILE_SIZE / 1024);
+      return KFWUM_STATUS_ERROR;
+   }
+
    pFileHandle = fopen((const char *)pFileName, "rb");
 
    if(pFileHandle)
@@ -538,6 +545,7 @@ static tKFWUM_Status KfwumSetupBuffersFr
       {
          KfwumShowProgress((const unsigned char *)"Reading Firmware from File", 100, 100);
       }
+      fclose(pFileHandle);
    }
    return(status);
 }
@@ -986,9 +994,9 @@ static tKFWUM_Status KfwumManualRollback
    return status;
 }
 
-#ifdef PRAGMA_PACK
-#pramga pack(1)
-#endif
+#ifdef PRAGMA_PACK
+#pramga pack(1)
+#endif
 struct KfwumStartFirmwareDownloadReq{
    unsigned char lengthLSB;
    unsigned char lengthMid;
@@ -996,20 +1004,20 @@ struct KfwumStartFirmwareDownloadReq{
    unsigned char paddingLSB;
    unsigned char paddingMSB;
 	unsigned char useSequence;
-} ATTRIBUTE_PACKING;
-#ifdef PRAGMA_PACK
-#pramga pack(0)
-#endif
-
-#ifdef PRAGMA_PACK
-#pramga pack(1)
-#endif
+} ATTRIBUTE_PACKING;
+#ifdef PRAGMA_PACK
+#pramga pack(0)
+#endif
+
+#ifdef PRAGMA_PACK
+#pramga pack(1)
+#endif
 struct KfwumStartFirmwareDownloadResp {
    unsigned char bank;
-} ATTRIBUTE_PACKING;
-#ifdef PRAGMA_PACK
-#pramga pack(0)
-#endif
+} ATTRIBUTE_PACKING;
+#ifdef PRAGMA_PACK
+#pramga pack(0)
+#endif
 
 static tKFWUM_Status KfwumStartFirmwareImage(struct ipmi_intf * intf,
                                    unsigned long length,unsigned short padding)
@@ -1065,9 +1073,9 @@ static tKFWUM_Status KfwumStartFirmwareI
    return status;
 }
 
-#ifdef PRAGMA_PACK
-#pramga pack(1)
-#endif
+#ifdef PRAGMA_PACK
+#pramga pack(1)
+#endif
 struct KfwumSaveFirmwareAddressReq
 {
  	unsigned char addressLSB;
@@ -1075,22 +1083,22 @@ struct KfwumSaveFirmwareAddressReq
    unsigned char addressMSB;
    unsigned char numBytes;
    unsigned char txBuf[KFWUM_SMALL_BUFFER-KFWUM_OLD_CMD_OVERHEAD];
-} ATTRIBUTE_PACKING;
-#ifdef PRAGMA_PACK
-#pramga pack(0)
-#endif
-
-#ifdef PRAGMA_PACK
-#pramga pack(1)
-#endif
+} ATTRIBUTE_PACKING;
+#ifdef PRAGMA_PACK
+#pramga pack(0)
+#endif
+
+#ifdef PRAGMA_PACK
+#pramga pack(1)
+#endif
 struct KfwumSaveFirmwareSequenceReq
 {
  	unsigned char sequenceNumber;
    unsigned char txBuf[KFWUM_BIG_BUFFER];
-} ATTRIBUTE_PACKING;
-#ifdef PRAGMA_PACK
-#pramga pack(0)
-#endif
+} ATTRIBUTE_PACKING;
+#ifdef PRAGMA_PACK
+#pramga pack(0)
+#endif
 
 
 #define FWUM_SAVE_FIRMWARE_NO_RESPONSE_LIMIT ((unsigned char)6)
@@ -1234,19 +1242,19 @@ static tKFWUM_Status KfwumSaveFirmwareIm
    return status;
 }
 
-#ifdef PRAGMA_PACK
-#pramga pack(1)
-#endif
+#ifdef PRAGMA_PACK
+#pramga pack(1)
+#endif
 struct KfwumFinishFirmwareDownloadReq{
    unsigned char versionMaj;
    unsigned char versionMinSub;
    unsigned char versionSdr;
    unsigned char reserved;
-} ATTRIBUTE_PACKING;
-#ifdef PRAGMA_PACK
-#pramga pack(0)
-#endif
-
+} ATTRIBUTE_PACKING;
+#ifdef PRAGMA_PACK
+#pramga pack(0)
+#endif
+
 static tKFWUM_Status KfwumFinishFirmwareImage(struct ipmi_intf * intf,
                                                  tKFWUM_InFirmwareInfo firmInfo)
 {