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ShellPkg: Verify memory allocations without ASSERT.

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signed-off-by: jcarsey
reviewed-by: geekboy15a

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12522 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jcarsey
2011-10-10 17:26:25 +00:00
parent 091bb7138b
commit beab0fc5e2
4 changed files with 167 additions and 122 deletions
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200
ShellPkg/Library/UefiShellLevel2CommandsLib/Cd.c
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@ -96,78 +96,25 @@ ShellCommandRunCd (
}
} else {
Param1Copy = CatSPrint(NULL, L"%s", Param1, NULL);
Param1Copy = PathCleanUpDirectories(Param1Copy);
if (StrCmp(Param1Copy, L".") == 0) {
//
// nothing to do... change to current directory
//
} else if (StrCmp(Param1Copy, L"..") == 0) {
//
// Change up one directory...
//
Directory = ShellGetCurrentDir(NULL);
if (Directory == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
Drive = GetFullyQualifiedPath(Directory);
PathRemoveLastItem(Drive);
}
if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
if (Param1Copy != NULL) {
Param1Copy = PathCleanUpDirectories(Param1Copy);
}
if (Param1Copy != NULL) {
if (StrCmp(Param1Copy, L".") == 0) {
//
// change directory on current drive letter
// nothing to do... change to current directory
//
Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
} else if (StrCmp(Param1Copy, L"..") == 0) {
//
// Change up one directory...
//
Directory = ShellGetCurrentDir(NULL);
if (Directory == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
}
}
} else if (StrCmp(Param1Copy, L"\\") == 0) {
//
// Move to root of current drive
//
Directory = ShellGetCurrentDir(NULL);
if (Directory == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
Drive = GetFullyQualifiedPath(Directory);
while (PathRemoveLastItem(Drive)) ;
}
if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
//
// change directory on current drive letter
//
Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
}
}
} else if (StrStr(Param1Copy, L":") == NULL) {
if (ShellGetCurrentDir(NULL) == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
ASSERT((Drive == NULL && DriveSize == 0) || (Drive != NULL));
Drive = StrnCatGrow(&Drive, &DriveSize, ShellGetCurrentDir(NULL), 0);
if (*Param1Copy == L'\\') {
while (PathRemoveLastItem(Drive)) ;
Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy+1, 0);
} else {
Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy, 0);
}
//
// Verify that this is a valid directory
//
Status = gEfiShellProtocol->OpenFileByName(Drive, &Handle, EFI_FILE_MODE_READ);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, Drive);
ShellStatus = SHELL_NOT_FOUND;
} else if (EFI_ERROR(FileHandleIsDirectory(Handle))) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_DIR), gShellLevel2HiiHandle, Drive);
ShellStatus = SHELL_NOT_FOUND;
Drive = GetFullyQualifiedPath(Directory);
PathRemoveLastItem(Drive);
}
if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
//
@ -179,42 +126,99 @@ ShellCommandRunCd (
ShellStatus = SHELL_NOT_FOUND;
}
}
if (Handle != NULL) {
gEfiShellProtocol->CloseFile(Handle);
DEBUG_CODE(Handle = NULL;);
}
}
} else {
//
// change directory on other drive letter
//
Drive = AllocateZeroPool(StrSize(Param1Copy));
if (Drive == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_MEM), gShellLevel2HiiHandle);
ShellStatus = SHELL_OUT_OF_RESOURCES;
} else {
Drive = StrCpy(Drive, Param1Copy);
Path = StrStr(Drive, L":");
ASSERT(Path != NULL);
if (*(Path+1) == CHAR_NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
} else if (StrCmp(Param1Copy, L"\\") == 0) {
//
// Move to root of current drive
//
Directory = ShellGetCurrentDir(NULL);
if (Directory == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
*(Path+1) = CHAR_NULL;
if (Path == Drive + StrLen(Drive)) {
Drive = GetFullyQualifiedPath(Directory);
while (PathRemoveLastItem(Drive)) ;
}
if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
//
// change directory on current drive letter
//
Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
}
}
} else if (StrStr(Param1Copy, L":") == NULL) {
if (ShellGetCurrentDir(NULL) == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
ASSERT((Drive == NULL && DriveSize == 0) || (Drive != NULL));
Drive = StrnCatGrow(&Drive, &DriveSize, ShellGetCurrentDir(NULL), 0);
if (*Param1Copy == L'\\') {
while (PathRemoveLastItem(Drive)) ;
Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy+1, 0);
} else {
Drive = StrnCatGrow(&Drive, &DriveSize, Param1Copy, 0);
}
//
// Verify that this is a valid directory
//
Status = gEfiShellProtocol->OpenFileByName(Drive, &Handle, EFI_FILE_MODE_READ);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, Drive);
ShellStatus = SHELL_NOT_FOUND;
} else if (EFI_ERROR(FileHandleIsDirectory(Handle))) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_DIR), gShellLevel2HiiHandle, Drive);
ShellStatus = SHELL_NOT_FOUND;
}
if (ShellStatus == SHELL_SUCCESS && Drive != NULL) {
//
// change directory on current drive letter
//
Status = gEfiShellProtocol->SetCurDir(NULL, Drive);
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
}
}
if (Handle != NULL) {
gEfiShellProtocol->CloseFile(Handle);
DEBUG_CODE(Handle = NULL;);
}
}
} else {
//
// change directory on other drive letter
//
Drive = AllocateZeroPool(StrSize(Param1Copy));
if (Drive == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_MEM), gShellLevel2HiiHandle);
ShellStatus = SHELL_OUT_OF_RESOURCES;
} else {
Drive = StrCpy(Drive, Param1Copy);
Path = StrStr(Drive, L":");
ASSERT(Path != NULL);
if (*(Path+1) == CHAR_NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
Status = gEfiShellProtocol->SetCurDir(Drive, Path+2);
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_PRINT), gShellLevel2HiiHandle, ShellGetCurrentDir(Drive));
*(Path+1) = CHAR_NULL;
if (Path == Drive + StrLen(Drive)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
} else {
Status = gEfiShellProtocol->SetCurDir(Drive, Path+2);
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_PRINT), gShellLevel2HiiHandle, ShellGetCurrentDir(Drive));
}
}
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
Status = SHELL_NOT_FOUND;
} else if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, Param1Copy);
Status = SHELL_NOT_FOUND;
}
}
if (Status == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_CD_NF), gShellLevel2HiiHandle);
Status = SHELL_NOT_FOUND;
} else if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DIR_NF), gShellLevel2HiiHandle, Param1Copy);
Status = SHELL_NOT_FOUND;
}
}
}