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tpm2: rev162: Sync code related to NVChip file size

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Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
This commit is contained in:
Stefan Berger 2020-04-20 10:46:15 -04:00 committed by Stefan Berger
parent deef829344
commit e9c1c15fbd
1 changed files with 9 additions and 6 deletions
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15
src/tpm2/NVMem.c
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@ -3,7 +3,7 @@
/* NV read and write access methods */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: NVMem.c 1529 2019-11-21 23:29:01Z kgoldman $ */
/* $Id: NVMem.c 1603 2020-04-03 17:48:43Z kgoldman $ */
/* */
/* Licenses and Notices */
/* */
@ -79,8 +79,8 @@
#if FILE_BACKED_NV
# include <stdio.h>
FILE *s_NvFile = NULL;
int s_NeedsManufacture = FALSE;
static FILE *s_NvFile = NULL; /* kgold made these static */
static int s_NeedsManufacture = FALSE;
#endif
/* C.6.2. Functions */
@ -148,6 +148,7 @@ NvFileSize(
int leaveAt
)
{
int irc; /* kgold, added return code checks */
long fileSize;
long filePos;
//
@ -157,16 +158,18 @@ NvFileSize(
if (filePos < 0)
return -1; // libtpms changed end
fseek(s_NvFile, 0, SEEK_END);
irc = fseek(s_NvFile, 0, SEEK_END);
assert(irc == 0);
fileSize = ftell(s_NvFile);
assert(fileSize >= 0);
switch(leaveAt)
{
case SEEK_SET:
filePos = 0;
/* fall through */
case SEEK_CUR:
if (fseek(s_NvFile, filePos, SEEK_SET) < 0) // libtpms changed
return -1; // libtpms changed
irc = fseek(s_NvFile, filePos, SEEK_SET);
assert(irc == 0);
break;
case SEEK_END:
break;