diff options
Diffstat (limited to 'MdePkg/Library')
| -rw-r--r-- | MdePkg/Library/BasePrintLib/BasePrintLib.inf | 8 | ||||
| -rw-r--r-- | MdePkg/Library/BasePrintLib/PrintLib.c | 416 | ||||
| -rw-r--r-- | MdePkg/Library/BasePrintLib/PrintLibInternal.c | 101 | ||||
| -rw-r--r-- | MdePkg/Library/BasePrintLib/PrintLibInternal.h | 3 |
4 files changed, 315 insertions, 213 deletions
diff --git a/MdePkg/Library/BasePrintLib/BasePrintLib.inf b/MdePkg/Library/BasePrintLib/BasePrintLib.inf index 5457276d0e..069b80d5e4 100644 --- a/MdePkg/Library/BasePrintLib/BasePrintLib.inf +++ b/MdePkg/Library/BasePrintLib/BasePrintLib.inf @@ -1,7 +1,7 @@ ## @file
# Print Library implementation.
#
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2017, 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
@@ -41,4 +41,10 @@ [LibraryClasses]
DebugLib
BaseLib
+ PcdLib
+
+
+[Pcd]
+ gEfiMdePkgTokenSpaceGuid.PcdMaximumAsciiStringLength ## SOMETIMES_CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdMaximumUnicodeStringLength ## SOMETIMES_CONSUMES
diff --git a/MdePkg/Library/BasePrintLib/PrintLib.c b/MdePkg/Library/BasePrintLib/PrintLib.c index 43b2b3c1d3..bf8c7bfe12 100644 --- a/MdePkg/Library/BasePrintLib/PrintLib.c +++ b/MdePkg/Library/BasePrintLib/PrintLib.c @@ -1,7 +1,7 @@ /** @file
Base Print Library instance implementation.
- Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -26,35 +26,41 @@ VA_LIST gNullVaList; #define ASSERT_UNICODE_BUFFER(Buffer) ASSERT ((((UINTN) (Buffer)) & 0x01) == 0)
/**
- Produces a Null-terminated Unicode string in an output buffer based on
- a Null-terminated Unicode format string and a VA_LIST argument list
-
+ Produces a Null-terminated Unicode string in an output buffer based on
+ a Null-terminated Unicode format string and a VA_LIST argument list.
+
+ This function is similar as vsnprintf_s defined in C11.
+
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
- and BufferSize.
- The Unicode string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on the
- contents of the format string.
+ and BufferSize.
+ The Unicode string is produced by parsing the format string specified by FormatString.
+ Arguments are pulled from the variable argument list specified by Marker based on the
+ contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 1 and StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
- If BufferSize > 1 and FormatString is NULL, then ASSERT().
- If BufferSize > 1 and FormatString is not aligned on a 16-bit boundary, then ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
+ If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
+ (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
+ buffer is unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
- contains more than PcdMaximumUnicodeStringLength Unicode characters not including the
- Null-terminator, then ASSERT().
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
+
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker VA_LIST marker for the variable argument list.
-
+
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
@@ -74,35 +80,39 @@ UnicodeVSPrint ( }
/**
- Produces a Null-terminated Unicode string in an output buffer based on
- a Null-terminated Unicode format string and a BASE_LIST argument list
-
+ Produces a Null-terminated Unicode string in an output buffer based on
+ a Null-terminated Unicode format string and a BASE_LIST argument list.
+
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
- and BufferSize.
- The Unicode string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on the
- contents of the format string.
+ and BufferSize.
+ The Unicode string is produced by parsing the format string specified by FormatString.
+ Arguments are pulled from the variable argument list specified by Marker based on the
+ contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 1 and StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
- If BufferSize > 1 and FormatString is NULL, then ASSERT().
- If BufferSize > 1 and FormatString is not aligned on a 16-bit boundary, then ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
+ If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
+ (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
+ buffer is unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
- contains more than PcdMaximumUnicodeStringLength Unicode characters not including the
- Null-terminator, then ASSERT().
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker BASE_LIST marker for the variable argument list.
-
+
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
@@ -122,35 +132,41 @@ UnicodeBSPrint ( }
/**
- Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
+ Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
Unicode format string and variable argument list.
-
+
+ This function is similar as snprintf_s defined in C11.
+
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 1 and StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
- If BufferSize > 1 and FormatString is NULL, then ASSERT().
- If BufferSize > 1 and FormatString is not aligned on a 16-bit boundary, then ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
+ If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
+ (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
+ buffer is unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
- contains more than PcdMaximumUnicodeStringLength Unicode characters not including the
- Null-terminator, then ASSERT().
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
- @param ... Variable argument list whose contents are accessed based on the
+ @param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
-
+
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
@@ -175,33 +191,39 @@ UnicodeSPrint ( /**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
- ASCII format string and a VA_LIST argument list
-
+ ASCII format string and a VA_LIST argument list.
+
+ This function is similar as vsnprintf_s defined in C11.
+
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on the
+ Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 1 and StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
- If BufferSize > 1 and FormatString is NULL, then ASSERT().
+ If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
+ (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
+ buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
- contains more than PcdMaximumUnicodeStringLength Unicode characters not including the
- Null-terminator, then ASSERT().
+ PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
+
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker VA_LIST marker for the variable argument list.
-
+
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
@@ -221,33 +243,37 @@ UnicodeVSPrintAsciiFormat ( /**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
- ASCII format string and a BASE_LIST argument list
-
+ ASCII format string and a BASE_LIST argument list.
+
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on the
+ Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 1 and StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
- If BufferSize > 1 and FormatString is NULL, then ASSERT().
+ If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
+ (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
+ buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
- contains more than PcdMaximumUnicodeStringLength Unicode characters not including the
- Null-terminator, then ASSERT().
+ PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker BASE_LIST marker for the variable argument list.
-
+
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
@@ -266,35 +292,41 @@ UnicodeBSPrintAsciiFormat ( }
/**
- Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
+ Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
ASCII format string and variable argument list.
-
+
+ This function is similar as snprintf_s defined in C11.
+
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list based on the contents of the
+ Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 1 and StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
- If BufferSize > 1 and FormatString is NULL, then ASSERT().
+ If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
+ (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
+ buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
- contains more than PcdMaximumUnicodeStringLength Unicode characters not including the
- Null-terminator, then ASSERT().
+ PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
- @param ... Variable argument list whose contents are accessed based on the
+ @param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
-
+
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
@@ -374,31 +406,36 @@ UnicodeValueToString ( /**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and a VA_LIST argument list.
-
+
+ This function is similar as vsnprintf_s defined in C11.
+
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on
+ Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0, then no output buffer is produced and 0 is returned.
- If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is NULL, then ASSERT().
+ If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and BufferSize >
+ (PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
+ is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumAsciiStringLength is not zero, and produced Null-terminated ASCII string
- contains more than PcdMaximumAsciiStringLength ASCII characters not including the
- Null-terminator, then ASSERT().
+ PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0, then no output buffer is produced and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker VA_LIST marker for the variable argument list.
-
+
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
@@ -418,31 +455,34 @@ AsciiVSPrint ( /**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and a BASE_LIST argument list.
-
+
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on
+ Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0, then no output buffer is produced and 0 is returned.
- If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is NULL, then ASSERT().
+ If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and BufferSize >
+ (PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
+ is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumAsciiStringLength is not zero, and produced Null-terminated ASCII string
- contains more than PcdMaximumAsciiStringLength ASCII characters not including the
- Null-terminator, then ASSERT().
+ PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0, then no output buffer is produced and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker BASE_LIST marker for the variable argument list.
-
+
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
@@ -462,32 +502,37 @@ AsciiBSPrint ( /**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and variable argument list.
-
+
+ This function is similar as snprintf_s defined in C11.
+
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list based on the contents of the
+ Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0, then no output buffer is produced and 0 is returned.
- If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is NULL, then ASSERT().
+ If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and BufferSize >
+ (PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
+ is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
- PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumAsciiStringLength is not zero, and produced Null-terminated ASCII string
- contains more than PcdMaximumAsciiStringLength ASCII characters not including the
- Null-terminator, then ASSERT().
+ PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ If BufferSize is 0, then no output buffer is produced and 0 is returned.
+
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
- @param ... Variable argument list whose contents are accessed based on the
+ @param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
-
+
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
@@ -513,32 +558,38 @@ AsciiSPrint ( /**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and a VA_LIST argument list.
-
+
+ This function is similar as vsnprintf_s defined in C11.
+
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on
+ Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0, then no output buffer is produced and 0 is returned.
- If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and BufferSize >
+ (PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
+ is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumAsciiStringLength is not zero, and produced Null-terminated ASCII string
- contains more than PcdMaximumAsciiStringLength ASCII characters not including the
- Null-terminator, then ASSERT().
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0, then no output buffer is produced and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker VA_LIST marker for the variable argument list.
-
+
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
@@ -559,32 +610,36 @@ AsciiVSPrintUnicodeFormat ( /**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and a BASE_LIST argument list.
-
+
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list specified by Marker based on
+ Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0, then no output buffer is produced and 0 is returned.
- If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and BufferSize >
+ (PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
+ is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumAsciiStringLength is not zero, and produced Null-terminated ASCII string
- contains more than PcdMaximumAsciiStringLength ASCII characters not including the
- Null-terminator, then ASSERT().
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ If BufferSize is 0, then no output buffer is produced and 0 is returned.
+
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker BASE_LIST marker for the variable argument list.
-
+
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
@@ -605,33 +660,39 @@ AsciiBSPrintUnicodeFormat ( /**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and variable argument list.
-
+
+ This function is similar as snprintf_s defined in C11.
+
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
- Arguments are pulled from the variable argument list based on the contents of the
+ Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
- If BufferSize is 0, then no output buffer is produced and 0 is returned.
- If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is NULL, then ASSERT().
- If BufferSize > 0 and FormatString is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+
+ If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
+ unmodified and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and BufferSize >
+ (PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
+ is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
- ASSERT().
- If PcdMaximumAsciiStringLength is not zero, and produced Null-terminated ASCII string
- contains more than PcdMaximumAsciiStringLength ASCII characters not including the
- Null-terminator, then ASSERT().
+ ASSERT(). Also, the output buffer is unmodified and 0 is returned.
+
+ If BufferSize is 0, then no output buffer is produced and 0 is returned.
- @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
+ @param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
- @param ... Variable argument list whose contents are accessed based on the
+ @param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
-
+
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
@@ -711,9 +772,13 @@ AsciiValueToString ( Returns the number of characters that would be produced by if the formatted
output were produced not including the Null-terminator.
- If FormatString is NULL, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
+ If FormatString is NULL, then ASSERT() and 0 is returned.
+ If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more
+ than PcdMaximumUnicodeStringLength Unicode characters not including the
+ Null-terminator, then ASSERT() and 0 is returned.
+
@param[in] FormatString A Null-terminated Unicode format string.
@param[in] Marker VA_LIST marker for the variable argument list.
@@ -727,7 +792,6 @@ SPrintLength ( IN VA_LIST Marker
)
{
- ASSERT(FormatString != NULL);
ASSERT_UNICODE_BUFFER (FormatString);
return BasePrintLibSPrintMarker (NULL, 0, FORMAT_UNICODE | OUTPUT_UNICODE | COUNT_ONLY_NO_PRINT, (CHAR8 *)FormatString, Marker, NULL);
}
@@ -736,7 +800,10 @@ SPrintLength ( Returns the number of characters that would be produced by if the formatted
output were produced not including the Null-terminator.
- If FormatString is NULL, then ASSERT().
+ If FormatString is NULL, then ASSERT() and 0 is returned.
+ If PcdMaximumAsciiStringLength is not zero, and FormatString contains more
+ than PcdMaximumAsciiStringLength Ascii characters not including the
+ Null-terminator, then ASSERT() and 0 is returned.
@param[in] FormatString A Null-terminated ASCII format string.
@param[in] Marker VA_LIST marker for the variable argument list.
@@ -751,6 +818,5 @@ SPrintLengthAsciiFormat ( IN VA_LIST Marker
)
{
- ASSERT(FormatString != NULL);
return BasePrintLibSPrintMarker (NULL, 0, OUTPUT_UNICODE | COUNT_ONLY_NO_PRINT, (CHAR8 *)FormatString, Marker, NULL);
}
diff --git a/MdePkg/Library/BasePrintLib/PrintLibInternal.c b/MdePkg/Library/BasePrintLib/PrintLibInternal.c index d73e1d65c4..155fe6a461 100644 --- a/MdePkg/Library/BasePrintLib/PrintLibInternal.c +++ b/MdePkg/Library/BasePrintLib/PrintLibInternal.c @@ -1,7 +1,7 @@ /** @file
Print Library internal worker functions.
- Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2017, 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 +17,20 @@ #define WARNING_STATUS_NUMBER 5
#define ERROR_STATUS_NUMBER 33
+//
+// Safe print checks
+//
+#define RSIZE_MAX (PcdGet32 (PcdMaximumUnicodeStringLength))
+#define ASCII_RSIZE_MAX (PcdGet32 (PcdMaximumAsciiStringLength))
+
+#define SAFE_PRINT_CONSTRAINT_CHECK(Expression, RetVal) \
+ do { \
+ ASSERT (Expression); \
+ if (!(Expression)) { \
+ return RetVal; \
+ } \
+ } while (FALSE)
+
GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 mHexStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 * CONST mStatusString[] = {
@@ -352,6 +366,56 @@ BasePrintLibSPrintMarker ( // DxePrintLibPrint2Protocol (both PrintLib instances).
//
+ //
+ // 1. Buffer shall not be a null pointer when both BufferSize > 0 and
+ // COUNT_ONLY_NO_PRINT is not set in Flags.
+ //
+ if ((BufferSize > 0) && ((Flags & COUNT_ONLY_NO_PRINT) == 0)) {
+ SAFE_PRINT_CONSTRAINT_CHECK ((Buffer != NULL), 0);
+ }
+
+ //
+ // 2. Format shall not be a null pointer when BufferSize > 0 or when
+ // COUNT_ONLY_NO_PRINT is set in Flags.
+ //
+ if ((BufferSize > 0) || ((Flags & COUNT_ONLY_NO_PRINT) != 0)) {
+ SAFE_PRINT_CONSTRAINT_CHECK ((Format != NULL), 0);
+ }
+
+ //
+ // 3. BufferSize shall not be greater than RSIZE_MAX for Unicode output or
+ // ASCII_RSIZE_MAX for Ascii output.
+ //
+ if ((Flags & OUTPUT_UNICODE) != 0) {
+ if (RSIZE_MAX != 0) {
+ SAFE_PRINT_CONSTRAINT_CHECK ((BufferSize <= RSIZE_MAX), 0);
+ }
+ BytesPerOutputCharacter = 2;
+ } else {
+ if (ASCII_RSIZE_MAX != 0) {
+ SAFE_PRINT_CONSTRAINT_CHECK ((BufferSize <= ASCII_RSIZE_MAX), 0);
+ }
+ BytesPerOutputCharacter = 1;
+ }
+
+ //
+ // 4. Format shall not contain more than RSIZE_MAX Unicode characters or
+ // ASCII_RSIZE_MAX Ascii characters.
+ //
+ if ((Flags & FORMAT_UNICODE) != 0) {
+ if (RSIZE_MAX != 0) {
+ SAFE_PRINT_CONSTRAINT_CHECK ((StrnLenS ((CHAR16 *)Format, RSIZE_MAX + 1) <= RSIZE_MAX), 0);
+ }
+ BytesPerFormatCharacter = 2;
+ FormatMask = 0xffff;
+ } else {
+ if (ASCII_RSIZE_MAX != 0) {
+ SAFE_PRINT_CONSTRAINT_CHECK ((AsciiStrnLenS (Format, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), 0);
+ }
+ BytesPerFormatCharacter = 1;
+ FormatMask = 0xff;
+ }
+
if ((Flags & COUNT_ONLY_NO_PRINT) != 0) {
if (BufferSize == 0) {
Buffer = NULL;
@@ -363,13 +427,6 @@ BasePrintLibSPrintMarker ( if (BufferSize == 0) {
return 0;
}
- ASSERT (Buffer != NULL);
- }
-
- if ((Flags & OUTPUT_UNICODE) != 0) {
- BytesPerOutputCharacter = 2;
- } else {
- BytesPerOutputCharacter = 1;
}
LengthToReturn = 0;
@@ -389,24 +446,6 @@ BasePrintLibSPrintMarker ( EndBuffer = Buffer + BufferSize * BytesPerOutputCharacter;
}
- if ((Flags & FORMAT_UNICODE) != 0) {
- //
- // Make sure format string cannot contain more than PcdMaximumUnicodeStringLength
- // Unicode characters if PcdMaximumUnicodeStringLength is not zero.
- //
- ASSERT (StrSize ((CHAR16 *) Format) != 0);
- BytesPerFormatCharacter = 2;
- FormatMask = 0xffff;
- } else {
- //
- // Make sure format string cannot contain more than PcdMaximumAsciiStringLength
- // Ascii characters if PcdMaximumAsciiStringLength is not zero.
- //
- ASSERT (AsciiStrSize (Format) != 0);
- BytesPerFormatCharacter = 1;
- FormatMask = 0xff;
- }
-
//
// Get the first character from the format string
//
@@ -975,16 +1014,6 @@ BasePrintLibSPrintMarker ( // Null terminate the Unicode or ASCII string
//
BasePrintLibFillBuffer (Buffer, EndBuffer + BytesPerOutputCharacter, 1, 0, BytesPerOutputCharacter);
- //
- // Make sure output buffer cannot contain more than PcdMaximumUnicodeStringLength
- // Unicode characters if PcdMaximumUnicodeStringLength is not zero.
- //
- ASSERT ((((Flags & OUTPUT_UNICODE) == 0)) || (StrSize ((CHAR16 *) OriginalBuffer) != 0));
- //
- // Make sure output buffer cannot contain more than PcdMaximumAsciiStringLength
- // ASCII characters if PcdMaximumAsciiStringLength is not zero.
- //
- ASSERT ((((Flags & OUTPUT_UNICODE) != 0)) || (AsciiStrSize (OriginalBuffer) != 0));
return ((Buffer - OriginalBuffer) / BytesPerOutputCharacter);
}
diff --git a/MdePkg/Library/BasePrintLib/PrintLibInternal.h b/MdePkg/Library/BasePrintLib/PrintLibInternal.h index 05f2e1bc99..fccef9b9b9 100644 --- a/MdePkg/Library/BasePrintLib/PrintLibInternal.h +++ b/MdePkg/Library/BasePrintLib/PrintLibInternal.h @@ -1,7 +1,7 @@ /** @file
Base Print Library instance Internal Functions definition.
- Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2017, 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
@@ -19,6 +19,7 @@ #include <Library/PrintLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
//
|