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accept different order in install and uninstall icon files, as long as all of the sizes and color depths match

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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3260 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
kichik 2003-12-08 09:32:30 +00:00
parent 4eb2881b5b
commit 1ad157554c
2 changed files with 54 additions and 33 deletions
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38
Source/util.cpp
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@ -306,7 +306,7 @@ int generate_unicons_offsets(unsigned char* exeHeader, unsigned char* uninstIcon
MY_ASSERT((int)rdIcons - (int)exeHeader > iNextSection, "corrupted EXE - invalid pointer");
unsigned char* seeker = uninstIconData;
MY_ASSERT(rdIcons->Header.NumberOfIdEntries == 0, "no icons found");
for (i = 0; i < rdIcons->Header.NumberOfIdEntries; i++) { // Icons dir can't have named entries
MY_ASSERT(!rdIcons->Entries[i].DataIsDirectory, "bad resource directory");
@ -319,18 +319,38 @@ int generate_unicons_offsets(unsigned char* exeHeader, unsigned char* uninstIcon
MY_ASSERT((int)rde - (int)exeHeader > iNextSection, "corrupted EXE - invalid pointer");
DWORD dwSize = *(DWORD*)seeker;
seeker += sizeof(DWORD);
MY_ASSERT(dwSize != rde->Size, "installer, uninstaller icon size mismatch - see the Icon instruction's documentation for more information");
// find icon to replace
LPBYTE seeker = uninstIconData;
while (*seeker) {
DWORD dwSize = *(DWORD*)seeker;
seeker += sizeof(DWORD);
DWORD dwOffset = *(DWORD*)seeker;
// if we haven't set the offset yet and the size is the same, it's a match
if (!dwOffset && dwSize == rde->Size)
break;
seeker += dwSize + sizeof(DWORD);
// reached the end of the list and no match
MY_ASSERT(!*seeker, "installer, uninstaller icon size mismatch - see the Icon instruction's documentation for more information");
}
// Set offset
*(DWORD*)seeker = rde->OffsetToData + DWORD(rdRoot) - dwResourceSectionVA - DWORD(exeHeader);
*(LPDWORD) seeker = rde->OffsetToData + DWORD(rdRoot) - dwResourceSectionVA - DWORD(exeHeader);
MY_ASSERT(*(int*)seeker > iNextSection || *(int*)seeker < (int)rdRoot - (int)exeHeader, "invalid data offset - icon resource probably compressed");
seeker += sizeof(DWORD) + dwSize;
}
MY_ASSERT(i == 0, "no icons found");
MY_ASSERT(*(DWORD*)seeker != 0, "number of icons doesn't match");
LPBYTE seeker = uninstIconData;
while (*seeker) {
DWORD dwSize = *(DWORD*)seeker;
seeker += sizeof(DWORD);
DWORD dwOffset = *(DWORD*)seeker;
seeker += sizeof(DWORD);
// offset isn't set which means we found no match for this one
MY_ASSERT(!dwOffset, "number of icons doesn't match");
seeker += dwSize;
}
return PIMAGE_RESOURCE_DATA_ENTRY(PRESOURCE_DIRECTORY(rdIcons->Entries[0].OffsetToDirectory + DWORD(rdRoot))->Entries[0].OffsetToData + DWORD(rdRoot))->OffsetToData + DWORD(rdRoot) - dwResourceSectionVA - DWORD(exeHeader);
}