byte DiskWrite(byte ID,byte *Buf,int N)
{
if((ID<MAXDRIVES)&&(Drives[ID]>=0)&&!RdOnly[ID])
if(my_lseek(ID,N*512L,0)==N*512L)
return(my_write(ID,Buf,512)==512);
return(0);
}
byte DiskRead(byte ID,byte *Buf,int N)
{
if (DiskPresent(ID)) {
if(my_lseek(ID,N*512L,0)==N*512L)
return(my_read(ID,Buf,512)==512);
}
return(0);
}
int NtxHwCfg_Save(const char *szFileName,int iIsSeek)
{
int iRet;
char *pszFileName = (char *)szFileName;
if(0==szFileName) {
#ifdef _X86_//[
return 0;
#else //][!_X86_
pszFileName = "/dev/mmcblk0";
iIsSeek = 1;
#endif //]_X86_
}
{
int iFd = -1;
ssize_t tChk;
iFd = my_open(pszFileName,O_RDWR|O_TRUNC|O_CREAT);
if(iFd>=0) {
if(iIsSeek) {
iIsSeek = SYSHWCONFIG_SEEKSIZE;
}
else {
iIsSeek = 0;
}
my_lseek(iFd,(unsigned int)iIsSeek,SEEK_SET);
tChk = my_write(iFd,(unsigned char *)_gptNtxHwCfg,sizeof(_gtNtxHwCfg));
if((int)tChk==sizeof(_gtNtxHwCfg)) {
iRet = HWCFG_RET_SUCCESS;
}
else {
iRet = HWCFG_RET_FILEWRITEFAIL;
}
my_close(iFd);iFd=-1;
}
else {
ERR_MSG("%s : File \"%s\" open fail !\n",__FUNCTION__,pszFileName);
iRet = HWCFG_RET_FILEOPENFAIL;
}
}
return iRet;
}
NTX_HWCONFIG *NtxHwCfg_Load(const char *szFileName,int iIsSeek)
{
NTX_HWCONFIG *ptRet = 0;
char *pszFileName = (char *)szFileName;
if(0==szFileName) {
#ifdef _X86_//[
return 0;
#else //][!_X86_
pszFileName = "/dev/mmcblk0";
iIsSeek = 1;
#endif //]_X86_
}
{
int iFd = -1;
ssize_t tChk;
iFd = my_open(pszFileName,O_RDONLY);
if(iFd>=0) {
if(iIsSeek) {
iIsSeek = SYSHWCONFIG_SEEKSIZE;
}
else {
iIsSeek = 0;
}
my_lseek(iFd,(unsigned int)iIsSeek,SEEK_SET);
tChk = my_read(iFd,(unsigned char *)_gptNtxHwCfg,sizeof(_gtNtxHwCfg));
if((int)tChk==sizeof(_gtNtxHwCfg)) {
if(NtxHwCfg_ChkCfgHeaderEx(_gptNtxHwCfg,1)>=0) {
ptRet = _gptNtxHwCfg;
}
}
my_close(iFd);iFd=-1;
}
else {
ERR_MSG("%s : File \"%s\" open fail !\n",__FUNCTION__,pszFileName);
}
}
return ptRet;
}
//This tests the lseek function
//It does so by opening a file and calling lseek on the fd
//If the fd offset is not what is expected, it will return 0.
int lseekTest()
{
MINODE *test_mip = running->cwd;
INODE *ip = NULL;
int newseek10 = 10, newseek20 = 20;
OFT *oft;
strcpy(pathname, "");
cd(pathname);
test_mip = running->cwd;
printf("\n\n-------- TESTING LSEEK FUNCTION --------\n\n");
strcpy(pathname, "new");
strcpy(third, "0");
printf(">open new 0\n");
open_file(pathname);
my_pfd("");
oft = running->fd[0];
printf("Beginning offset: %d\n", oft->offset);
strcpy(pathname, "0");
strcpy(third, "10");
printf(">lseek 0 10\n");
my_lseek(pathname);
printf("New offset: %d\n", oft->offset);
printf("Expected offset: %d\n", newseek10);
if(newseek10 != oft->offset)
{
printf("TEST FAILED\n\n");
return 0;
}
else
{
printf("TEST PASSED\n\n");
}
strcpy(pathname, "0");
strcpy(third, "100");
printf(">lseek 0 100\n");
my_lseek(pathname);
printf("New offset: %d\n", oft->offset);
printf("Expected offset: %d\n", newseek10);
if(newseek10 != oft->offset)
{
printf("TEST FAILED\n\n");
return 0;
}
else
{
printf("TEST PASSED\n\n");
}
strcpy(pathname, "0");
strcpy(third, "20");
printf(">lseek 0 20\n");
my_lseek(pathname);
printf("New offset: %d\n", oft->offset);
printf("Expected offset: %d\n", newseek20);
if(newseek20 != oft->offset)
{
printf("TEST FAILED\n\n");
return 0;
}
else
{
printf("TEST PASSED\n\n");
}
printf("ALL LSEEK TESTS PASSED\n\n\n");
strcpy(pathname, "0");
strcpy(third, "");
printf(">close 0\n");
my_close(pathname);
strcpy(pathname, "");
cd(pathname);
return 1;
}