/*************************************
* ShowMyRedirections
* show my current drive redirections
* NOTES:
* I show the read-only attribute for each drive
* which is returned in deviceParam.
*************************************/
void
ShowMyRedirections(void)
{
int driveCount;
uint16 redirIndex, deviceParam, ccode;
uint8 deviceType;
char deviceStr[MAX_DEVICE_STRING_LENGTH];
char resourceStr[MAX_RESOURCE_PATH_LENGTH];
redirIndex = 0;
driveCount = 0;
ccode = GetRedirection(redirIndex, deviceStr, resourceStr,
&deviceType, &deviceParam);
while (ccode == CC_SUCCESS) {
/* only print disk redirections here */
if (deviceType == REDIR_DISK_TYPE) {
if (driveCount == 0) {
printf("Current Drive Redirections:\n");
}
driveCount++;
printf("%-2s = %-20s ", deviceStr, resourceStr);
/* read attribute is returned in the device parameter */
if (deviceParam & 0x80) {
switch (deviceParam & 0x7f) { /* tej 1/7/95 */
case READ_ONLY_DRIVE_ATTRIBUTE:
printf("attrib = READ ONLY\n");
break;
default:
printf("attrib = READ/WRITE\n");
break;
}
}
}
redirIndex++;
ccode = GetRedirection(redirIndex, deviceStr, resourceStr,
&deviceType, &deviceParam);
}
if (driveCount == 0) {
printf("No drives are currently redirected to Linux.\n");
}
}
void DOS_Shell::ParseLine(char * line) {
LOG(LOG_EXEC,LOG_ERROR)("Parsing command line: %s",line);
/* Check for a leading @ */
if (line[0] == '@') line[0] = ' ';
line = trim(line);
/* Do redirection and pipe checks */
char * in = 0;
char * out = 0;
Bit16u dummy,dummy2;
Bit32u bigdummy = 0;
Bitu num = 0; /* Number of commands in this line */
bool append;
bool normalstdin = false; /* wether stdin/out are open on start. */
bool normalstdout = false; /* Bug: Assumed is they are "con" */
num = GetRedirection(line,&in, &out,&append);
if (num>1) LOG_MSG("SHELL:Multiple command on 1 line not supported");
if (in || out) {
normalstdin = (psp->GetFileHandle(0) != 0xff);
normalstdout = (psp->GetFileHandle(1) != 0xff);
}
if (in) {
if(DOS_OpenFile(in,OPEN_READ,&dummy)) { //Test if file exists
DOS_CloseFile(dummy);
LOG_MSG("SHELL:Redirect input from %s",in);
if(normalstdin) DOS_CloseFile(0); //Close stdin
DOS_OpenFile(in,OPEN_READ,&dummy); //Open new stdin
}
}
if (out){
LOG_MSG("SHELL:Redirect output to %s",out);
if(normalstdout) DOS_CloseFile(1);
if(!normalstdin && !in) DOS_OpenFile("con",OPEN_READWRITE,&dummy);
bool status = true;
/* Create if not exist. Open if exist. Both in read/write mode */
if(append) {
if( (status = DOS_OpenFile(out,OPEN_READWRITE,&dummy)) ) {
DOS_SeekFile(1,&bigdummy,DOS_SEEK_END);
} else {
status = DOS_CreateFile(out,DOS_ATTR_ARCHIVE,&dummy); //Create if not exists.
}
} else {
status = DOS_OpenFileExtended(out,OPEN_READWRITE,DOS_ATTR_ARCHIVE,0x12,&dummy,&dummy2);
}
if(!status && normalstdout) DOS_OpenFile("con",OPEN_READWRITE,&dummy); //Read only file, open con again
if(!normalstdin && !in) DOS_CloseFile(0);
}
/* Run the actual command */
DoCommand(line);
/* Restore handles */
if(in) {
DOS_CloseFile(0);
if(normalstdin) DOS_OpenFile("con",OPEN_READWRITE,&dummy);
free(in);
}
if(out) {
DOS_CloseFile(1);
if(!normalstdin) DOS_OpenFile("con",OPEN_READWRITE,&dummy);
if(normalstdout) DOS_OpenFile("con",OPEN_READWRITE,&dummy);
if(!normalstdin) DOS_CloseFile(0);
free(out);
}
}
