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Simplify PE section helper methods

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This commit is contained in:
Matt Nadareski
2022-12-09 14:59:31 -08:00
parent 1aef137cb2
commit 8a77a8a009
1 changed files with 6 additions and 130 deletions
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136
BurnOutSharp.Wrappers/PortableExecutable.cs
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@@ -3032,34 +3032,7 @@ namespace BurnOutSharp.Wrappers
// Get the first index of the section
int index = Array.IndexOf(SectionNames, name);
if (index == -1)
return null;
// Get the section data from the table
var section = SectionTable[index];
uint address = section.VirtualAddress.ConvertVirtualAddress(SectionTable);
if (address == 0)
return null;
// Set the section size
uint size = section.SizeOfRawData;
lock (_sourceDataLock)
{
// Create the section data array if we have to
if (_sectionData == null)
_sectionData = new byte[SectionNames.Length][];
// If we already have cached data, just use that immediately
if (_sectionData[index] != null)
return _sectionData[index];
// Populate the raw section data based on the source
byte[] sectionData = ReadFromDataSource((int)address, (int)size);
// Cache and return the section data, even if null
_sectionData[index] = sectionData;
return sectionData;
}
return GetSectionData(index);
}
/// <summary>
@@ -3081,22 +3054,7 @@ namespace BurnOutSharp.Wrappers
// Get the first index of the section
int index = Array.IndexOf(SectionNames, name);
if (index == -1)
return null;
// Get the section data from the table
var section = SectionTable[index];
uint address = section.VirtualAddress.ConvertVirtualAddress(SectionTable);
if (address == 0)
return null;
// Set the section size
uint size = section.SizeOfRawData;
lock (_sourceDataLock)
{
// Immediately return the data without caching
return ReadFromDataSource((int)address + offset, (int)size - offset);
}
return GetSectionData(index);
}
/// <summary>
@@ -3117,34 +3075,7 @@ namespace BurnOutSharp.Wrappers
// Get the last index of the section
int index = Array.LastIndexOf(SectionNames, name);
if (index == -1)
return null;
// Get the section data from the table
var section = SectionTable[index];
uint address = section.VirtualAddress.ConvertVirtualAddress(SectionTable);
if (address == 0)
return null;
// Set the section size
uint size = section.SizeOfRawData;
lock (_sourceDataLock)
{
// Create the section data array if we have to
if (_sectionData == null)
_sectionData = new byte[SectionNames.Length][];
// If we already have cached data, just use that immediately
if (_sectionData[index] != null)
return _sectionData[index];
// Populate the raw section data based on the source
byte[] sectionData = ReadFromDataSource((int)address, (int)size);
// Cache and return the section data, even if null
_sectionData[index] = sectionData;
return sectionData;
}
return GetSectionData(index);
}
/// <summary>
@@ -3207,34 +3138,7 @@ namespace BurnOutSharp.Wrappers
// Get the first index of the section
int index = Array.IndexOf(SectionNames, name);
if (index == -1)
return null;
// Get the section data from the table
var section = SectionTable[index];
uint address = section.VirtualAddress.ConvertVirtualAddress(SectionTable);
if (address == 0)
return null;
// Set the section size
uint size = section.SizeOfRawData;
lock (_sourceDataLock)
{
// Create the section string array if we have to
if (_sectionStringData == null)
_sectionStringData = new List<string>[SectionNames.Length];
// If we already have cached data, just use that immediately
if (_sectionStringData[index] != null)
return _sectionStringData[index];
// Populate the section string data based on the source
List<string> sectionStringData = ReadStringsFromDataSource((int)address, (int)size);
// Cache and return the section string data, even if null
_sectionStringData[index] = sectionStringData;
return sectionStringData;
}
return GetSectionStrings(index);
}
/// <summary>
@@ -3255,41 +3159,13 @@ namespace BurnOutSharp.Wrappers
// Get the last index of the section
int index = Array.LastIndexOf(SectionNames, name);
if (index == -1)
return null;
// Get the section data from the table
var section = SectionTable[index];
uint address = section.VirtualAddress.ConvertVirtualAddress(SectionTable);
if (address == 0)
return null;
// Set the section size
uint size = section.SizeOfRawData;
lock (_sourceDataLock)
{
// Create the section string array if we have to
if (_sectionStringData == null)
_sectionStringData = new List<string>[SectionNames.Length];
// If we already have cached data, just use that immediately
if (_sectionStringData[index] != null)
return _sectionStringData[index];
// Populate the section string data based on the source
List<string> sectionStringData = ReadStringsFromDataSource((int)address, (int)size);
// Cache and return the section string data, even if null
_sectionStringData[index] = sectionStringData;
return sectionStringData;
}
return GetSectionStrings(index);
}
/// <summary>
/// Get the section strings based on index, if possible
/// </summary>
/// <param name="name">Name of the section to check for</param>
/// <param name="exact">True to enable exact matching of names, false for starts-with</param>
/// <param name="index">Index of the section to check for</param>
/// <returns>Section strings on success, null on error</returns>
public List<string> GetSectionStrings(int index)
{