diff options
| -rw-r--r-- | src/Platform/Unix/Process.cpp | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/Platform/Unix/Process.cpp b/src/Platform/Unix/Process.cpp index 388bda6b..07703649 100644 --- a/src/Platform/Unix/Process.cpp +++ b/src/Platform/Unix/Process.cpp @@ -53,13 +53,33 @@ namespace VeraCrypt try { int argIndex = 0; + /* Workaround for gcc 5.X issue related to the use of STL (string and list) with muliple fork calls. + * + * The char* pointers retrieved from the elements of parameter "arguments" are no longer valid after + * a second fork is called. "arguments" was created in the parent of the current child process. + * + * The only solution is to copy the elements of "arguments" parameter in a local string array on this + * child process and then use char* pointers retrieved from this local copies before calling fork. + * + * gcc 4.x doesn't suffer from this issue. + * + */ + string argsCopy[array_capacity (args)]; if (!execFunctor) - args[argIndex++] = const_cast <char*> (processName.c_str()); + { + argsCopy[argIndex++] = processName; + } foreach (const string &arg, arguments) { - args[argIndex++] = const_cast <char*> (arg.c_str()); + argsCopy[argIndex++] = arg; } + + for (int i = 0; i < argIndex; i++) + { + args[i] = const_cast <char*> (argsCopy[i].c_str()); + } + args[argIndex] = nullptr; if (inputData) |