diff options
Diffstat (limited to 'ShellPkg/Library/UefiShellLevel1CommandsLib/For.c')
| -rw-r--r-- | ShellPkg/Library/UefiShellLevel1CommandsLib/For.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/ShellPkg/Library/UefiShellLevel1CommandsLib/For.c b/ShellPkg/Library/UefiShellLevel1CommandsLib/For.c index b01c69d3d..f0c4a23b2 100644 --- a/ShellPkg/Library/UefiShellLevel1CommandsLib/For.c +++ b/ShellPkg/Library/UefiShellLevel1CommandsLib/For.c @@ -254,6 +254,29 @@ InternalRemoveAliasFromList( }
/**
+ Function to determine whether a string is decimal or hex representation of a number
+ and return the number converted from the string.
+
+ @param[in] String String representation of a number
+
+ @return the number
+ @retval (UINTN)(-1) An error ocurred.
+**/
+UINTN
+EFIAPI
+ReturnUintn(
+ IN CONST CHAR16 *String
+ )
+{
+ UINT64 RetVal;
+
+ if (!EFI_ERROR(ShellConvertStringToUint64(String, &RetVal, FALSE, FALSE))) {
+ return ((UINTN)RetVal);
+ }
+ return ((UINTN)(-1));
+}
+
+/**
Function for 'for' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@@ -486,9 +509,9 @@ ShellCommandRunFor ( ShellStatus = SHELL_INVALID_PARAMETER;
} else {
if (ArgSetWalker[0] == L'-') {
- Info->Current = 0 - (INTN)ShellStrToUintn(ArgSetWalker+1);
+ Info->Current = 0 - (INTN)ReturnUintn(ArgSetWalker+1);
} else {
- Info->Current = (INTN)ShellStrToUintn(ArgSetWalker);
+ Info->Current = (INTN)ReturnUintn(ArgSetWalker);
}
ArgSetWalker = StrStr(ArgSetWalker, L" ");
while (ArgSetWalker != NULL && ArgSetWalker[0] == L' ') {
@@ -508,9 +531,9 @@ ShellCommandRunFor ( ShellStatus = SHELL_INVALID_PARAMETER;
} else {
if (ArgSetWalker[0] == L'-') {
- Info->End = 0 - (INTN)ShellStrToUintn(ArgSetWalker+1);
+ Info->End = 0 - (INTN)ReturnUintn(ArgSetWalker+1);
} else {
- Info->End = (INTN)ShellStrToUintn(ArgSetWalker);
+ Info->End = (INTN)ReturnUintn(ArgSetWalker);
}
if (Info->Current < Info->End) {
Info->Step = 1;
@@ -540,9 +563,9 @@ ShellCommandRunFor ( ASSERT(Info->Step == 1 || Info->Step == -1);
} else {
if (ArgSetWalker[0] == L'-') {
- Info->Step = 0 - (INTN)ShellStrToUintn(ArgSetWalker+1);
+ Info->Step = 0 - (INTN)ReturnUintn(ArgSetWalker+1);
} else {
- Info->Step = (INTN)ShellStrToUintn(ArgSetWalker);
+ Info->Step = (INTN)ReturnUintn(ArgSetWalker);
}
if (StrStr(ArgSetWalker, L" ") != NULL) {
|