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fix Runtime.exec on Posix

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Due to a silly cut-and-paste error, we were incorrectly passing the
stdout and stderr file descriptors back from native code to Java,
which prevented reading the output of the child process.
This commit is contained in:
Joel Dice 2010-10-22 14:39:38 -06:00
parent cf14a2c222
commit 5cbfee467c
1 changed files with 4 additions and 3 deletions
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7
classpath/java-lang.cpp
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@ -234,7 +234,8 @@ extern "C" JNIEXPORT void JNICALL
Java_java_lang_Runtime_exec(JNIEnv* e, jclass,
jobjectArray command, jlongArray process)
{
char** argv = static_cast<char**>(malloc((e->GetArrayLength(command) + 1) * sizeof(char*)));
char** argv = static_cast<char**>
(malloc((e->GetArrayLength(command) + 1) * sizeof(char*)));
int i;
for(i = 0; i < e->GetArrayLength(command); i++){
jstring element = (jstring) e->GetObjectArrayElement(command, i);
@ -255,11 +256,11 @@ Java_java_lang_Runtime_exec(JNIEnv* e, jclass,
makePipe(e, out);
if(e->ExceptionCheck()) return;
jlong outDescriptor = static_cast<jlong>(out[1]);
e->SetLongArrayRegion(process, 1, 1, &outDescriptor);
e->SetLongArrayRegion(process, 2, 1, &outDescriptor);
makePipe(e, err);
if(e->ExceptionCheck()) return;
jlong errDescriptor = static_cast<jlong>(err[0]);
e->SetLongArrayRegion(process, 1, 1, &errDescriptor);
e->SetLongArrayRegion(process, 3, 1, &errDescriptor);
makePipe(e, msg);
if(e->ExceptionCheck()) return;
if(fcntl(msg[1], F_SETFD, FD_CLOEXEC) != 0) {