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Diffstat (limited to 'spb/SpbTestTool/exe/util.cpp')
| -rw-r--r-- | spb/SpbTestTool/exe/util.cpp | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/spb/SpbTestTool/exe/util.cpp b/spb/SpbTestTool/exe/util.cpp new file mode 100644 index 00000000..fe6067c9 --- /dev/null +++ b/spb/SpbTestTool/exe/util.cpp @@ -0,0 +1,250 @@ +/*++ + +Copyright (c) Microsoft Corporation. All rights reserved. + +Module Name: + + util.cpp + +Abstract: + + This module contains the internal helper function definitions + for the SpbTestTool app. + +Environment: + + user-mode + +Revision History: + +--*/ + +#include "internal.h" + +_Success_(return) +bool +PopStringParameter( + _Inout_ list<string> *Parameters, + _Out_ string *Value, + _Out_opt_ bool *Present + ) +{ + if (Parameters->empty()) + { + if (Present != nullptr) + { + *Present = false; + *Value = string(""); + return true; + } + else + { + printf("Missing required parameter\n"); + return false; + } + } + + if (Present != nullptr) + { + *Present = true; + } + + *Value = Parameters->front(); + Parameters->pop_front(); + return true; +} + +_Success_(return) +bool +ParseNumber( + _In_ const string &String, + _In_ ULONG Radix, + _Out_ ULONG *Value, + _In_opt_ bounds Bounds + ) +{ + PSTR end; + +#pragma prefast(suppress:__WARNING_MISSING_ZERO_TERMINATION2 ,"zero-termination is checked below") + *Value = strtoul(String.c_str(), &end, Radix); + + // + // Make sure the entire string parsed. + // + + if (*end != '\0') + { + printf("Value %s is not a number\n", String.c_str()); + return false; + } + + // + // See if we should do a bounds check. + // + + if ((Bounds.first != 0) || (Bounds.second != 0)) + { + if ((*Value < Bounds.first) || + (*Value > Bounds.second)) + { + printf("Value %s is out of bounds\n", String.c_str()); + return false; + } + } + + return true; +} + +_Success_(return) +bool +PopNumberParameter( + _Inout_ list<string> *Parameters, + _In_ ULONG Radix, + _Out_ ULONG *Value, + _In_opt_ bounds Bounds, + _Out_opt_ bool *Present + ) +{ + string s; + + bool found = PopStringParameter(Parameters, &s, Present); + + if ((Present != nullptr) && (*Present == false)) + { + *Value = Bounds.first; + return true; + } + else if (found == false) + { + return false; + } + + return ParseNumber(s, Radix, Value, Bounds); +} + +_Success_(return) +bool +PopBufferParameter( + _Inout_ list<string> *Parameters, + _Out_ pair<ULONG, PBYTE> *Value + ) +{ + ULONG length = 0; + PBYTE buffer = nullptr; + + // + // Check for an explict length + // + + if (Parameters->front() != "{") + { + if (PopNumberParameter(Parameters, 10, &length) == false) + { + printf("Length expected\n"); + return false; + } + + // + // Consume any leading { + // + + if ((Parameters->empty() == false) && + (Parameters->front() == "{")) + { + Parameters->pop_front(); + } + } + else + { + string tmp; + if (PopStringParameter(Parameters, &tmp) == false) + { + return false; + } + else if (tmp != "{") + { + printf("output buffer must start with {\n"); + return false; + } + + // + // Count values until the trailing } - assume one byte per value + // + + list<string>::iterator i; + + for(i = Parameters->begin(); + ((i != Parameters->end()) && (*i != "}")); + i++) + { + length += 1; + } + + if (*i != "}") + { + printf("output buffer must end with }\n"); + return false; + } + } + + if (length != 0) + { + ULONG b = 0; + bool bufferEnd = false; + + // + // Allocate the buffer. + // + + buffer = new BYTE[length]; + + for(b = 0; b < length; b += 1) + { + ULONG value = 0; + + if (bufferEnd == false) + { + string nextElement; + + PopStringParameter(Parameters, &nextElement); + + if (nextElement == "}") + { + value = 0; + bufferEnd = true; + } + else if (ParseNumber(nextElement, 16, &value, bounds(0, 0xff)) == false) + { + printf("invalid byte value %s\n", nextElement.c_str()); + delete [] buffer; + return false; + } + } + + buffer[b] = (BYTE) value; + } + + if (bufferEnd == false) + { + string end; + + if (PopStringParameter(Parameters, &end) == false) + { + printf("unclosed buffer\n"); + delete [] buffer; + return false; + } + else if (end != "}") + { + printf("buffer has too many initializers\n"); + delete [] buffer; + return false; + } + } + } + + Value->first = length; + Value->second = buffer; + + return true; +} |