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WSL1 inconsistency

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This commit is contained in:
Yakov Olkhovskiy 2023-01-16 18:32:41 +00:00
parent b80ee8df50
commit c8f635e40b
1 changed files with 8 additions and 3 deletions
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11
utils/self-extracting-executable/decompressor.cpp
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@ -363,7 +363,7 @@ int decompressFiles(int input_fd, char * path, char * name, bool & have_compress
#if !defined(OS_DARWIN) && !defined(OS_FREEBSD)
uint32_t getInode(const char * self)
uint64_t getInode(const char * self)
{
std::ifstream maps("/proc/self/maps");
if (maps.fail())
@ -380,7 +380,7 @@ uint32_t getInode(const char * self)
{
std::stringstream ss(line); // STYLE_CHECK_ALLOW_STD_STRING_STREAM
std::string addr, mode, offset, id, path;
uint32_t inode = 0;
uint64_t inode = 0;
if (ss >> addr >> mode >> offset >> id >> inode >> path && path == self)
return inode;
}
@ -415,7 +415,7 @@ int main(int/* argc*/, char* argv[])
#if !defined(OS_DARWIN) && !defined(OS_FREEBSD)
/// get inode of this executable
uint32_t inode = getInode(self);
uint64_t inode = getInode(self);
if (inode == 0)
{
std::cerr << "Unable to obtain inode." << std::endl;
@ -447,6 +447,11 @@ int main(int/* argc*/, char* argv[])
return 1;
}
/// inconsistency in WSL1 Ubuntu - inode reported in /proc/self/maps is a 64bit to
/// 32bit conversion of input_info.st_ino
if (input_info.st_ino & 0xFFFFFFFF00000000 && !(inode & 0xFFFFFFFF00000000))
input_info.st_ino &= 0x00000000FFFFFFFF;
/// if decompression was performed by another process since this copy was started
/// then file referred by path "self" is already pointing to different inode
if (input_info.st_ino != inode)