*p = 0;
+ // The pointer to the environment block for the new process.
+ char *envblock = 0;
+
+ if (envp) {
+ // An environment block consists of a null-terminated block of
+ // null-terminated strings. Convert the array of environment variables to
+ // an environment block by concatenating them.
+
+ // First, determine the length of the environment block.
+ len = 0;
+ for (unsigned i = 0; envp[i]; i++)
+ len += strlen(envp[i]) + 1;
+
+ // Now build the environment block.
+ envblock = reinterpret_cast<char *>(_alloca(len+1));
+ p = envblock;
+
+ for (unsigned i = 0; envp[i]; i++) {
+ const char *ev = envp[i];
+ size_t len = strlen(ev) + 1;
+ memcpy(p, ev, len);
+ p += len;
+ }
+
+ *p = 0;
+ }
+
// Create a child process.
STARTUPINFO si;
memset(&si, 0, sizeof(si));
fflush(stdout);
fflush(stderr);
BOOL rc = CreateProcess(path.c_str(), command, NULL, NULL, FALSE, 0,
- envp, NULL, &si, &pi);
+ envblock, NULL, &si, &pi);
DWORD err = GetLastError();
// Regardless of whether the process got created or not, we are done with