static int open_base( const CHAR_TYPE *name, int mode )
{
int handle;
rdos_handle_type *obj;
int rdos_handle;
int rwmode;
unsigned iomode_flags;
rwmode = mode & OPENMODE_ACCESS_MASK;
iomode_flags = 0;
if( mode == O_RDWR ) iomode_flags |= _READ | _WRITE;
if( rwmode == O_RDONLY) iomode_flags |= _READ;
if( rwmode == O_WRONLY) iomode_flags |= _WRITE;
if( mode & O_APPEND ) iomode_flags |= _APPEND;
if( mode & (O_BINARY|O_TEXT) )
if( mode & O_BINARY ) iomode_flags |= _BINARY;
if( !strcmp( name, CONSOLE ) ) {
if( mode & O_CREAT )
obj = console_out;
else
obj = console_in;
obj->ref_count++;
handle = AllocHandleEntry( obj );
return( handle );
}
else {
if( mode & O_CREAT ) {
if( mode & O_EXCL ) {
rdos_handle = RdosOpenFile( name, 0 );
if( rdos_handle ) {
RdosCloseFile( rdos_handle );
return( -1 );
}
}
rdos_handle = RdosCreateFile( name, 0 );
}
else
rdos_handle = RdosOpenFile( name, 0 );
if( rdos_handle )
if( mode & O_TRUNC )
RdosSetFileSize( rdos_handle, 0 );
if( rdos_handle ) {
obj = AllocHandleObj( name );
if( obj ) {
obj->rdos_handle = rdos_handle;
obj->mode = iomode_flags;
obj->type = HANDLE_TYPE_FILE;
handle = AllocHandleEntry( obj );
return( handle );
}
}
}
return( -1 );
}
static void ProcessFile( char *filename, int handle, unsigned mode )
{
rdos_handle_type *obj;
int rdos_handle;
int org_handle;
rdos_handle = RdosOpenFile( filename, 0 );
if( rdos_handle ) {
obj = AllocHandleObj( filename );
}
if( obj ) {
obj->rdos_handle = rdos_handle;
obj->mode = mode;
obj->type = HANDLE_TYPE_FILE;
org_handle = AllocHandleEntry( obj );
dup2( org_handle, handle );
close( org_handle );
}
}
int _dospawn( int mode, CHAR_TYPE *pgmname, CHAR_TYPE *cmdline,
CHAR_TYPE *envpar,
const CHAR_TYPE * const argv[] )
{
int tid;
int handle;
int wait;
int rc = -1;
int fh;
int len;
char *p;
char *drive;
char *dir;
char *fname;
char *ext;
char *envdata;
char *envp;
char *ep;
char *options;
int ok;
options = __CreateInheritString();
__F_NAME(__ccmdline,__wccmdline)( pgmname, argv, cmdline, 0 );
ok = 0;
len = strlen( pgmname ) + 7 + _MAX_PATH2;
p = lib_malloc( len );
_splitpath2( pgmname, p + (len-_MAX_PATH2),
&drive, &dir, &fname, &ext );
_makepath( p, drive, dir, fname, ext );
fh = RdosOpenFile( p, 0 );
if( fh == 0 ) {
if( strlen( drive ) == 0 && strlen( dir ) == 0 ) {
envdata = getenv( "PATH" );
if( envdata ) {
envp = envdata;
while( envp && !ok) {
ep = strchr( envp, ';' );
if( ep ) {
*ep = 0;
ep++;
}
_makepath( p, "", envp, fname, ext );
fh = RdosOpenFile( pgmname, 0 );
if( fh ) {
ok = 1;
RdosCloseFile( fh );
}
envp = ep;
}
}
}
} else {
RdosCloseFile( fh );
ok = 1;
}
if( ok ) {
handle = RdosSpawn( pgmname, cmdline, 0, envpar, options, &tid );
if( !handle )
ok = 0;
}
if( ok ) {
if( mode == P_WAIT ) {
wait = RdosCreateWait();
RdosAddWaitForProcessEnd( wait, handle, 0 );
RdosWaitForever( wait );
rc = RdosGetProcessExitCode( handle );
RdosCloseWait( wait );
}
else
rc = tid;
RdosFreeProcessHandle( handle );
}
lib_free( options );
lib_free( p );
return( rc );
}
int _doexec( CHAR_TYPE *pgmname, CHAR_TYPE *cmdline,
const CHAR_TYPE * const argv[] )
{
char *options;
int len;
char *p;
int ok;
char *fname;
char *ext;
char *envdata;
char *envp;
char *ep;
int rc = -1;
int fh;
char *drive;
char *dir;
options = __CreateInheritString();
__F_NAME(__ccmdline,__wccmdline)( pgmname, argv, cmdline, 0 );
ok = 0;
len = strlen( pgmname ) + 7 + _MAX_PATH2;
p = lib_malloc( len );
_splitpath2( pgmname, p + (len-_MAX_PATH2),
&drive, &dir, &fname, &ext );
_makepath( p, drive, dir, fname, ext );
fh = RdosOpenFile( p, 0 );
if( fh == 0 ) {
if( strlen( drive ) == 0 && strlen( dir ) == 0 ) {
envdata = getenv( "PATH" );
if( envdata ) {
envp = envdata;
while( envp && !ok) {
ep = strchr( envp, ';' );
if( ep ) {
*ep = 0;
ep++;
}
_makepath( p, "", envp, fname, ext );
fh = RdosOpenFile( pgmname, 0 );
if( fh ) {
ok = 1;
RdosCloseFile( fh );
}
envp = ep;
}
}
}
} else {
RdosCloseFile( fh );
ok = 1;
}
if( ok )
rc = RdosExec( pgmname, cmdline, options );
lib_free( options );
lib_free( p );
return( rc );
}