diff options
Diffstat (limited to 'ShellPkg/Library/UefiShellLevel3CommandsLib/Echo.c')
| -rw-r--r-- | ShellPkg/Library/UefiShellLevel3CommandsLib/Echo.c | 141 |
1 files changed, 80 insertions, 61 deletions
diff --git a/ShellPkg/Library/UefiShellLevel3CommandsLib/Echo.c b/ShellPkg/Library/UefiShellLevel3CommandsLib/Echo.c index c98ee8500b..a638de8ce2 100644 --- a/ShellPkg/Library/UefiShellLevel3CommandsLib/Echo.c +++ b/ShellPkg/Library/UefiShellLevel3CommandsLib/Echo.c @@ -2,7 +2,7 @@ Main file for Echo shell level 3 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
- Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved. <BR>
+ Copyright (c) 2009 - 2012, 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
@@ -17,6 +17,12 @@ #include <Library/ShellLib.h>
+STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
+ {L"-on", TypeFlag},
+ {L"-off", TypeFlag},
+ {NULL, TypeMax}
+ };
+
/**
Function for 'echo' command.
@@ -30,73 +36,86 @@ ShellCommandRunEcho ( IN EFI_SYSTEM_TABLE *SystemTable
)
{
- CHAR16 *RawCmdLine;
- SHELL_STATUS Status;
+ EFI_STATUS Status;
+ LIST_ENTRY *Package;
+ SHELL_STATUS ShellStatus;
+ UINTN ParamCount;
+ CHAR16 *ProblemParam;
UINTN Size;
- CHAR16 *Walker;
- CHAR16 *TempParameter;
- BOOLEAN OnFlag;
- BOOLEAN OffFlag;
- UINTN Count;
-
- RawCmdLine = ShellGetRawCmdLine ();
- if (RawCmdLine == NULL) {
- return SHELL_OUT_OF_RESOURCES;
- }
-
- OnFlag = FALSE;
- OffFlag = FALSE;
-
- Size = StrSize (RawCmdLine);
- TempParameter = AllocateZeroPool(Size);
- if (TempParameter == NULL) {
- Status = SHELL_OUT_OF_RESOURCES;
- goto Done;
- }
-
- for ( Count = 0
- , Walker = RawCmdLine
- ; Walker != NULL && *Walker != CHAR_NULL
- ; Count++
- ) {
- if (EFI_ERROR (ShellGetNextParameter (&Walker, TempParameter, Size, FALSE))) {
- break;
+ CHAR16 *PrintString;
+
+ Size = 0;
+ ProblemParam = NULL;
+ PrintString = NULL;
+ ShellStatus = SHELL_SUCCESS;
+
+ //
+ // initialize the shell lib (we must be in non-auto-init...)
+ //
+ Status = ShellInitialize();
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // parse the command line
+ //
+ Status = ShellCommandLineParseEx (ParamList, &Package, &ProblemParam, TRUE, TRUE);
+ if (EFI_ERROR(Status)) {
+ if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"echo", ProblemParam);
+ FreePool(ProblemParam);
+ ShellStatus = SHELL_INVALID_PARAMETER;
+ } else {
+ ASSERT(FALSE);
}
-
- if (Count == 1) {
- if (gUnicodeCollation->StriColl(gUnicodeCollation, TempParameter, L"-on") == 0 ) {
- OnFlag = TRUE;
+ } else {
+ //
+ // check for "-?"
+ //
+ if (ShellCommandLineGetFlag(Package, L"-?")) {
+ ASSERT(FALSE);
+ }
+ if (ShellCommandLineGetFlag(Package, L"-on")) {
+ //
+ // Turn it on
+ //
+ ShellCommandSetEchoState(TRUE);
+ } else if (ShellCommandLineGetFlag(Package, L"-off")) {
+ //
+ // turn it off
+ //
+ ShellCommandSetEchoState(FALSE);
+ } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
+ //
+ // output its current state
+ //
+ if (ShellCommandGetEchoState()) {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_ON), gShellLevel3HiiHandle);
+ } else {
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_OFF), gShellLevel3HiiHandle);
}
- if (gUnicodeCollation->StriColl(gUnicodeCollation, TempParameter, L"-off") == 0 ) {
- OffFlag = TRUE;
+ } else {
+ //
+ // print the line
+ //
+ for ( ParamCount = 1
+ ; ShellCommandLineGetRawValue(Package, ParamCount) != NULL
+ ; ParamCount++
+ ) {
+ StrnCatGrow(&PrintString, &Size, ShellCommandLineGetRawValue(Package, ParamCount), 0);
+ if (ShellCommandLineGetRawValue(Package, ParamCount+1) != NULL) {
+ StrnCatGrow(&PrintString, &Size, L" ", 0);
+ }
}
- }
- }
-
- if (OnFlag || OffFlag) {
- if (Count != 2) {
- ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_ECHO_INVALID_PARAM), gShellLevel3HiiHandle, L"echo", L"-on/-off");
- Status = SHELL_INVALID_PARAMETER;
- goto Done;
+ ShellPrintEx(-1, -1, L"%s\r\n", PrintString);
+ SHELL_FREE_NON_NULL(PrintString);
}
- ShellCommandSetEchoState(OnFlag);
- Status = SHELL_SUCCESS;
- goto Done;
+ //
+ // free the command line package
+ //
+ ShellCommandLineFreeVarList (Package);
}
- Walker = RawCmdLine + StrLen (L"echo");
- if (*Walker != CHAR_NULL) {
- Walker++;
- ShellPrintEx (-1, -1, L"%s\r\n", Walker);
- }
-
- Status = SHELL_SUCCESS;
-
-Done:
- SHELL_FREE_NON_NULL (TempParameter);
- SHELL_FREE_NON_NULL (RawCmdLine);
- return Status;
-
+ return (ShellStatus);
}
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