osl: create new function osl_getAllEnvironment()private/tbsdy/osl_getAllEnvironment

Change-Id: Iff2290113696db7e4ce78002701b227cb89b766d

4 files changed, 74 insertions, 0 deletions

diff --git a/include/osl/process.h b/include/osl/process.h
index 3c58419420d0..213e9d47dfd2 100644
--- a/include/osl/process.h
+++ b/include/osl/process.h
@@ -358,13 +358,21 @@ SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getCommandArg(
 
     @param[in] argc  The number of elements in the argv array.
     @param[in] argv  The array of command-line arguments.
+
     @see osl_getExecutableFile
     @see osl_getCommandArgCount
     @see osl_getCommandArg
 */
 SAL_DLLPUBLIC void SAL_CALL osl_setCommandArgs (int argc, char **argv);
 
+/** Get all the environment variables available to the current process.
+
+    @param[out] strVars all environment variables
+*/
+SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getAllEnvironment(rtl_uString **strVars);
+
 /** Get the value of one environment variable.
+
     @param[in] strVar  denotes the name of the variable to get.
     @param[out] strValue string that receives the value of environment variable.
 */
@@ -372,6 +380,7 @@ SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getEnvironment(
         rtl_uString *strVar, rtl_uString **strValue);
 
 /** Set the value of one environment variable.
+
     @param[in] strVar  denotes the name of the variable to set.
     @param[in] strValue  string of the new value of environment variable.
 
diff --git a/include/sal/main.h b/include/sal/main.h
index 7c79fad5f0f9..b8a0be959c5e 100644
--- a/include/sal/main.h
+++ b/include/sal/main.h
@@ -29,6 +29,11 @@
 #include <unistd.h>
 #endif
 
+#ifdef UNX
+#include <unistd.h>
+extern char **environ;
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/sal/osl/unx/process_impl.cxx b/sal/osl/unx/process_impl.cxx
index c38ecedc6491..21fa85dff70a 100644
--- a/sal/osl/unx/process_impl.cxx
+++ b/sal/osl/unx/process_impl.cxx
@@ -44,6 +44,9 @@
 #if defined(MACOSX) || defined(IOS)
 #include <mach-o/dyld.h>
 
+#include <unistd.h>
+extern char **environ;
+
 namespace {
 
 oslProcessError SAL_CALL bootstrap_getExecutableFile(rtl_uString ** ppFileURL)
@@ -234,6 +237,34 @@ void SAL_CALL osl_setCommandArgs (int argc, char ** argv)
     pthread_mutex_unlock (&(g_command_args.m_mutex));
 }
 
+oslProcessError SAL_CALL osl_getAllEnvironment(rtl_uString **ppustrVars)
+{
+    sal_uInt32 countenv=0;
+
+    for (char **env = environ; *env; ++env)
+        countenv++;
+
+    if (ppustrVars)
+    {
+        rtl_uString **temp;
+        for (temp = ppustrVars; *temp; ++temp)
+            rtl_freeMemory(*temp);
+
+        rtl_freeMemory(temp);
+    }
+
+    ppustrVars = static_cast<rtl_uString**>(rtl_allocateMemory(sizeof(rtl_uString*) * countenv));
+
+    for (char **env = environ; *env; ++env, ++ppustrVars)
+    {
+        rtl_uString *pstrTmp = nullptr;
+        rtl_uString_newFromAscii(&pstrTmp, *env);
+        ppustrVars = &pstrTmp;
+    }
+
+    return osl_Process_E_None;
+}
+
 oslProcessError SAL_CALL osl_getEnvironment(rtl_uString* pustrEnvVar, rtl_uString** ppustrValue)
 {
     oslProcessError  result   = osl_Process_E_NotFound;
diff --git a/sal/osl/w32/process.cxx b/sal/osl/w32/process.cxx
index 758100fc3417..8cb92e9257c3 100644
--- a/sal/osl/w32/process.cxx
+++ b/sal/osl/w32/process.cxx
@@ -448,6 +448,35 @@ void SAL_CALL osl_setCommandArgs (int argc, char ** argv)
 
 #define ENV_BUFFER_SIZE (32*1024-1)
 
+oslProcessError SAL_CALL osl_getAllEnvironment(rtl_uString **ppustrVars)
+{
+    sal_uInt32 countenv;
+    LPTCH environ = GetEnvironmentStrings();
+
+    for (LPSTR **env = environ; *env; ++env)
+        countenv++;
+
+    if (ppustrVars)
+    {
+        rtl_uString **temp;
+        for (temp = ppustrVars; *temp; ++temp)
+            rtl_freeMemory(*temp);
+
+        rtl_freeMemory(temp);
+    }
+
+    ppustrVars = static_cast<rtl_uString**>(rtl_allocateMemory(sizeof(rtl_uString*) * countenv));
+
+    for (char **env = environ; *env; ++env, ++ppustrVars)
+    {
+        rtl_uString *pstrTmp = nullptr;
+        rtl_uString_newFromAscii(&pstrTmp, *env);
+        ppustrVars = &pstrTmp;
+    }
+    return osl_Process_E_None;
+}
+
+
 oslProcessError SAL_CALL osl_getEnvironment(rtl_uString *ustrVar, rtl_uString **ustrValue)
 {
     WCHAR buff[ENV_BUFFER_SIZE];