diff options
Diffstat (limited to 'StdLib/LibC/Uefi/InteractiveIO/CanonRead.c')
| -rw-r--r-- | StdLib/LibC/Uefi/InteractiveIO/CanonRead.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/StdLib/LibC/Uefi/InteractiveIO/CanonRead.c b/StdLib/LibC/Uefi/InteractiveIO/CanonRead.c deleted file mode 100644 index 8c8e076d80..0000000000 --- a/StdLib/LibC/Uefi/InteractiveIO/CanonRead.c +++ /dev/null @@ -1,167 +0,0 @@ -/** @file
- Canonical Interactive Input Function.
-
- The functions assume that isatty() is TRUE at the time they are called.
-
- Copyright (c) 2012 - 2014, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-**/
-#include <Uefi.h>
-
-#include <LibConfig.h>
-
-#include <errno.h>
-#include <sys/syslimits.h>
-#include <sys/termios.h>
-#include <Device/IIO.h>
-#include <MainData.h>
-#include "IIOutilities.h"
-#include "IIOechoCtrl.h"
-
-/** Read a line from the input file in canonical mode.
- Perform echoing and input processing as directed by the termios flags.
-
- @param[in] filp A pointer to a file descriptor structure.
-
- @return The number of characters in the input buffer, or -1 if there
- was an error.
-**/
-ssize_t
-IIO_CanonRead (
- struct __filedes *filp
- )
-{
- cIIO *This;
- cFIFO *InBuf;
- struct termios *Termio;
- struct __filedes *fpOut;
- size_t NumRead;
- wint_t InChar;
- tcflag_t IFlag;
- tcflag_t LFlag;
- BOOLEAN EchoIsOK;
- BOOLEAN Activate;
- BOOLEAN FirstRead;
- int OutMode;
- UINTN MaxColumn;
- UINTN MaxRow;
-
- NumRead = MAX_INPUT; // Workaround "potentially uninitialized" warning
- EchoIsOK = FALSE;
- FirstRead = TRUE;
- This = filp->devdata;
- Termio = &This->Termio;
- InBuf = This->InBuf;
-
- // Get a copy of the flags we are going to use
- IFlag = Termio->c_iflag;
- LFlag = Termio->c_lflag;
-
- /* Determine what the current screen size is. Also validates the output device. */
- OutMode = IIO_GetOutputSize(STDOUT_FILENO, &MaxColumn, &MaxRow);
- if(OutMode >= 0) {
- /* Set the maximum screen dimensions. */
- This->MaxColumn = MaxColumn;
- This->MaxRow = MaxRow;
-
- /* Record where the cursor is at the beginning of this Input operation.
- The currently set stdout device is used to determine this. If there is
- no stdout, or stdout is not an interactive device, nothing is recorded.
- */
- if (IIO_GetCursorPosition(STDOUT_FILENO, &This->InitialXY.Column, &This->InitialXY.Row) >= 0) {
- This->CurrentXY.Column = This->InitialXY.Column;
- This->CurrentXY.Row = This->InitialXY.Row;
- EchoIsOK = TRUE; // Can only echo to stdout
- }
- }
-
- // For now, we only echo to stdout.
- fpOut = &gMD->fdarray[STDOUT_FILENO];
-
- // Input and process characters until BufferSize is exhausted.
- do {
- InChar = IIO_GetInChar(filp, FirstRead);
- if (InChar == WEOF) {
- NumRead = 0;
- break;
- }
- FirstRead = FALSE;
- Activate = TRUE;
- if(InChar == CHAR_CARRIAGE_RETURN) {
- if((IFlag & IGNCR) != 0) {
- continue; // Restart the do loop, discarding the CR
- }
- else if((IFlag & ICRNL) != 0) {
- InChar = L'\n';
- }
- }
- else if(InChar == CHAR_LINEFEED) {
- if((IFlag & INLCR) != 0) {
- InChar = L'\r';
- }
- }
- else if(CCEQ(Termio->c_cc[VINTR], InChar)) {
- if((LFlag & ISIG) != 0) {
- // Raise Signal
- // Flush Input Buffer
- // Return to caller
- InChar = IIO_ECHO_DISCARD;
- errno = EINTR;
- }
- else {
- Activate = FALSE;
- }
- }
- else if(CCEQ(Termio->c_cc[VQUIT], InChar)) {
- if((LFlag & ISIG) != 0) {
- // Raise Signal
- // Flush Input Buffer
- // Return to caller
- InChar = IIO_ECHO_DISCARD;
- errno = EINTR;
- }
- else {
- Activate = FALSE;
- }
- }
- else if(CCEQ(Termio->c_cc[VEOF], InChar)) {
- InChar = WEOF;
- NumRead = 0;
- EchoIsOK = FALSE; // Buffer, but don't echo this character
- }
- else if(CCEQ(Termio->c_cc[VEOL], InChar)) {
- EchoIsOK = FALSE; // Buffer, but don't echo this character
- }
- else if(CCEQ(Termio->c_cc[VERASE], InChar)) {
- InChar = IIO_ECHO_ERASE;
- Activate = FALSE;
- }
- else if(CCEQ(Termio->c_cc[VKILL], InChar)) {
- InChar = IIO_ECHO_KILL;
- Activate = FALSE;
- }
- else {
- if((InChar < TtySpecKeyMin) || (InChar >= TtyFunKeyMax)) {
- Activate = FALSE;
- }
- }
- /** The Echo function is responsible for:
- * Adding the character to the input buffer, if appropriate.
- * Removing characters from the input buffer for ERASE and KILL processing.
- * Visually removing characters from the screen if ECHOE is set.
- * Ensuring one can not backspace beyond the beginning of the input text.
- * Sending final echo strings to output.
- **/
- (void)This->Echo(fpOut, (wchar_t)InChar, EchoIsOK);
- NumRead = InBuf->Count(InBuf, AsElements);
- } while((NumRead < MAX_INPUT) &&
- (Activate == FALSE));
-
- return (ssize_t)NumRead;
-}
|