re PR libgcj/23758 (java::lang::ConcreteProcess::nativeSpawn unsafe)
PR libgcj/23758 * java/lang/natPosixProcess.cc (nativeSpawn): Move building of environment before the fork. * testsuite/libjava.lang/Process_7.java: New test. * testsuite/libjava.lang/Process_7.out: Its expected results. * testsuite/libjava.lang/Process_7.jar: Generated file. From-SVN: r123676
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@ -1,3 +1,12 @@
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2007-04-08 David Daney <ddaney@avtrex.com>
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PR libgcj/23758
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* java/lang/natPosixProcess.cc (nativeSpawn): Move building of
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environment before the fork.
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* testsuite/libjava.lang/Process_7.java: New test.
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* testsuite/libjava.lang/Process_7.out: Its expected results.
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* testsuite/libjava.lang/Process_7.jar: Generated file.
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2007-04-09 H.J. Lu <hongjiu.lu@intel.com>
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* prims.cc (load_jvmti_agent): Add the missing `,'.
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@ -1,6 +1,7 @@
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// natPosixProcess.cc - Native side of POSIX process code.
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/* Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation
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/* Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007
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Free Software Foundation
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This file is part of libgcj.
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@ -248,16 +249,57 @@ java::lang::PosixProcess::nativeSpawn ()
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if (envp)
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{
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env = (char **) _Jv_Malloc ((envp->length + 1) * sizeof (char *));
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bool need_path = true;
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bool need_ld_library_path = true;
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int i;
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// Preserve PATH and LD_LIBRARY_PATH unless specified
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// explicitly. We need three extra slots. Potentially PATH
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// and LD_LIBRARY_PATH will be added plus the NULL
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// termination.
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env = (char **) _Jv_Malloc ((envp->length + 3) * sizeof (char *));
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elts = elements (envp);
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// Initialize so we can gracefully recover.
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for (int i = 0; i <= envp->length; ++i)
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for (i = 0; i < envp->length + 3; ++i)
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env[i] = NULL;
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for (int i = 0; i < envp->length; ++i)
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env[i] = new_string (elts[i]);
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env[envp->length] = NULL;
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for (i = 0; i < envp->length; ++i)
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{
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env[i] = new_string (elts[i]);
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if (!strncmp (env[i], "PATH=", sizeof("PATH=")))
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need_path = false;
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if (!strncmp (env[i], "LD_LIBRARY_PATH=",
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sizeof("LD_LIBRARY_PATH=")))
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need_ld_library_path = false;
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}
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if (need_path)
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{
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char *path_val = getenv ("PATH");
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if (path_val)
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{
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env[i] = (char *) _Jv_Malloc (strlen (path_val) +
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sizeof("PATH=") + 1);
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strcpy (env[i], "PATH=");
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strcat (env[i], path_val);
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i++;
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}
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}
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if (need_ld_library_path)
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{
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char *path_val = getenv ("LD_LIBRARY_PATH");
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if (path_val)
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{
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env[i] =
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(char *) _Jv_Malloc (strlen (path_val) +
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sizeof("LD_LIBRARY_PATH=") + 1);
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strcpy (env[i], "LD_LIBRARY_PATH=");
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strcat (env[i], path_val);
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i++;
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}
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}
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env[i] = NULL;
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}
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// We allocate this here because we can't call malloc() after
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@ -303,29 +345,7 @@ java::lang::PosixProcess::nativeSpawn ()
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{
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// Child process, so remap descriptors, chdir and exec.
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if (envp)
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{
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// Preserve PATH and LD_LIBRARY_PATH unless specified
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// explicitly.
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char *path_val = getenv ("PATH");
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char *ld_path_val = getenv ("LD_LIBRARY_PATH");
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environ = env;
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if (path_val && getenv ("PATH") == NULL)
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{
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char *path_env =
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(char *) _Jv_Malloc (strlen (path_val) + 5 + 1);
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strcpy (path_env, "PATH=");
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strcat (path_env, path_val);
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putenv (path_env);
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}
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if (ld_path_val && getenv ("LD_LIBRARY_PATH") == NULL)
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{
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char *ld_path_env =
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(char *) _Jv_Malloc (strlen (ld_path_val) + 16 + 1);
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strcpy (ld_path_env, "LD_LIBRARY_PATH=");
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strcat (ld_path_env, ld_path_val);
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putenv (ld_path_env);
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}
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}
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environ = env;
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// We ignore errors from dup2 because they should never occur.
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dup2 (outp[0], 0);
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@ -344,7 +364,7 @@ java::lang::PosixProcess::nativeSpawn ()
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close (outp[0]);
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close (outp[1]);
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close (msgp[0]);
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// Change directory.
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if (path != NULL)
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{
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BIN
libjava/testsuite/libjava.lang/Process_7.jar
Normal file
BIN
libjava/testsuite/libjava.lang/Process_7.jar
Normal file
Binary file not shown.
45
libjava/testsuite/libjava.lang/Process_7.java
Normal file
45
libjava/testsuite/libjava.lang/Process_7.java
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@ -0,0 +1,45 @@
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// Verify we can modify the environment.
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import java.io.BufferedReader;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.util.Map;
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public class Process_7
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{
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public static void main(String[] args)
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{
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try
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{
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ProcessBuilder pb = new ProcessBuilder("env");
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Map<String, String> e = pb.environment();
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e.clear();
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String v = "process7_value";
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String k = "PROCESS_7_KEY";
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e.put(k, v);
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Process p = pb.start();
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InputStream is = p.getInputStream();
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InputStreamReader isr = new InputStreamReader(is);
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BufferedReader br = new BufferedReader(isr);
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boolean found = false;
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String result;
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while ((result = br.readLine()) != null)
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{
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if (result.equals(k + '=' + v))
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found = true;
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}
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if (!found)
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{
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System.out.println("bad");
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return;
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}
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System.out.println("ok");
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}
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catch (Exception ex)
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{
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System.out.println(ex.toString());
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}
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}
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}
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1
libjava/testsuite/libjava.lang/Process_7.out
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1
libjava/testsuite/libjava.lang/Process_7.out
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@ -0,0 +1 @@
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ok
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