diff options
| author | Jaben Carsey <jaben.carsey@intel.com> | 2013-11-22 21:37:34 +0000 |
|---|---|---|
| committer | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-11-22 21:37:34 +0000 |
| commit | 74b0fb8c875ebdc0c5681ed125b5446a4a1cb07d (patch) | |
| tree | f9196358d4e73e77bfb65043762cc71a2e787b59 /ShellPkg | |
| parent | 541ddf4436988fd28fee530a6f9bf7d2e9ed3962 (diff) | |
ShellPkg: Add ShellHexStrToUintn to allow for simple conversion of hex numbers.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14893 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ShellPkg')
| -rw-r--r-- | ShellPkg/Include/Library/ShellLib.h | 17 | ||||
| -rw-r--r-- | ShellPkg/Library/UefiShellLib/UefiShellLib.c | 26 |
2 files changed, 43 insertions, 0 deletions
diff --git a/ShellPkg/Include/Library/ShellLib.h b/ShellPkg/Include/Library/ShellLib.h index eefa030ad..4a79acdd5 100644 --- a/ShellPkg/Include/Library/ShellLib.h +++ b/ShellPkg/Include/Library/ShellLib.h @@ -1008,6 +1008,23 @@ ShellStrToUintn( );
/**
+ Function return the number converted from a hex representation of a number.
+
+ Note: this function cannot be used when (UINTN)(-1), (0xFFFFFFFF) may be a valid
+ result. Use ShellConvertStringToUint64 instead.
+
+ @param[in] String String representation of a number.
+
+ @return The unsigned integer result of the conversion.
+ @retval (UINTN)(-1) An error occured.
+**/
+UINTN
+EFIAPI
+ShellHexStrToUintn(
+ IN CONST CHAR16 *String
+ );
+
+/**
Safely append with automatic string resizing given length of Destination and
desired length of copy from Source.
diff --git a/ShellPkg/Library/UefiShellLib/UefiShellLib.c b/ShellPkg/Library/UefiShellLib/UefiShellLib.c index a0a7da87d..40b87fec3 100644 --- a/ShellPkg/Library/UefiShellLib/UefiShellLib.c +++ b/ShellPkg/Library/UefiShellLib/UefiShellLib.c @@ -3057,6 +3057,32 @@ ShellIsFileInPath( }
/**
+ Function return the number converted from a hex representation of a number.
+
+ Note: this function cannot be used when (UINTN)(-1), (0xFFFFFFFF) may be a valid
+ result. Use ShellConvertStringToUint64 instead.
+
+ @param[in] String String representation of a number.
+
+ @return The unsigned integer result of the conversion.
+ @retval (UINTN)(-1) An error occured.
+**/
+UINTN
+EFIAPI
+ShellHexStrToUintn(
+ IN CONST CHAR16 *String
+ )
+{
+ UINT64 RetVal;
+
+ if (!EFI_ERROR(ShellConvertStringToUint64(String, &RetVal, TRUE, TRUE))) {
+ return ((UINTN)RetVal);
+ }
+
+ return ((UINTN)(-1));
+}
+
+/**
Function to determine whether a string is decimal or hex representation of a number
and return the number converted from the string. Spaces are always skipped.
|