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authorPatrik Nyblom <[email protected]>2012-08-20 18:19:52 +0200
committerPatrik Nyblom <[email protected]>2012-08-20 18:19:52 +0200
commita8fb0d0537314f717f9ab33989a5115457c9aab0 (patch)
tree07dcacdaa266c01391a8e422c60c7b6ff9c810cf /erts/emulator/sys
parent00ef468474d0628903e0a3a3abc7aceb8d2c4061 (diff)
parenta49b1a844febb2740c530895b32c0bb0ae7d5aa0 (diff)
downloadotp-a8fb0d0537314f717f9ab33989a5115457c9aab0.tar.gz
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Merge branch 'maint'
Conflicts: erts/doc/src/erlang.xml erts/preloaded/ebin/init.beam lib/kernel/doc/src/os.xml lib/stdlib/test/filename_SUITE.erl
Diffstat (limited to 'erts/emulator/sys')
-rw-r--r--erts/emulator/sys/unix/sys.c41
-rw-r--r--erts/emulator/sys/win32/erl_win_sys.h4
-rwxr-xr-xerts/emulator/sys/win32/sys.c10
-rw-r--r--erts/emulator/sys/win32/sys_env.c570
4 files changed, 334 insertions, 291 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index bf69f3bf90..0e8395ea8a 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -551,7 +551,7 @@ erl_sys_init(void)
size_t bindirsz = sizeof(bindir);
Uint csp_path_sz;
- res = erts_sys_getenv("BINDIR", bindir, &bindirsz);
+ res = erts_sys_getenv_raw("BINDIR", bindir, &bindirsz);
if (res != 0) {
if (res < 0)
erl_exit(-1,
@@ -708,7 +708,7 @@ prepare_crash_dump(void)
}
envsz = sizeof(env);
- i = erts_sys_getenv("ERL_CRASH_DUMP_NICE", env, &envsz);
+ i = erts_sys_getenv_raw("ERL_CRASH_DUMP_NICE", env, &envsz);
if (i >= 0) {
int nice_val;
nice_val = i != 0 ? 0 : atoi(env);
@@ -719,7 +719,7 @@ prepare_crash_dump(void)
}
envsz = sizeof(env);
- i = erts_sys_getenv("ERL_CRASH_DUMP_SECONDS", env, &envsz);
+ i = erts_sys_getenv_raw("ERL_CRASH_DUMP_SECONDS", env, &envsz);
if (i >= 0) {
unsigned sec;
sec = (unsigned) i != 0 ? 0 : atoi(env);
@@ -1356,9 +1356,9 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op
int no_vfork;
size_t no_vfork_sz = sizeof(no_vfork);
- no_vfork = (erts_sys_getenv("ERL_NO_VFORK",
- (char *) &no_vfork,
- &no_vfork_sz) >= 0);
+ no_vfork = (erts_sys_getenv_raw("ERL_NO_VFORK",
+ (char *) &no_vfork,
+ &no_vfork_sz) >= 0);
#endif
switch (opts->read_write) {
@@ -2362,21 +2362,31 @@ void sys_get_pid(char *buffer){
}
int
-erts_sys_putenv(char *buffer, int sep_ix)
+erts_sys_putenv_raw(char *key, char *value) {
+ return erts_sys_putenv(key, value);
+}
+int
+erts_sys_putenv(char *key, char *value)
{
int res;
char *env;
+ Uint need = strlen(key) + strlen(value) + 2;
+
#ifdef HAVE_COPYING_PUTENV
- env = buffer;
+ env = erts_alloc(ERTS_ALC_T_TMP, need);
#else
- Uint sz = strlen(buffer)+1;
- env = erts_alloc(ERTS_ALC_T_PUTENV_STR, sz);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, sz);
- strcpy(env,buffer);
+ env = erts_alloc(ERTS_ALC_T_PUTENV_STR, need);
+ erts_smp_atomic_add_nob(&sys_misc_mem_sz, need);
#endif
+ strcpy(env,key);
+ strcat(env,"=");
+ strcat(env,value);
erts_smp_rwmtx_rwlock(&environ_rwmtx);
res = putenv(env);
erts_smp_rwmtx_rwunlock(&environ_rwmtx);
+#ifdef HAVE_COPYING_PUTENV
+ erts_free(ERTS_ALC_T_TMP, env);
+#endif
return res;
}
@@ -2403,6 +2413,11 @@ erts_sys_getenv__(char *key, char *value, size_t *size)
}
int
+erts_sys_getenv_raw(char *key, char *value, size_t *size) {
+ return erts_sys_getenv(key, value, size);
+}
+
+int
erts_sys_getenv(char *key, char *value, size_t *size)
{
int res;
@@ -3001,7 +3016,7 @@ erl_sys_args(int* argc, char** argv)
if (erts_use_kernel_poll) {
char no_kp[10];
size_t no_kp_sz = sizeof(no_kp);
- int res = erts_sys_getenv("ERL_NO_KERNEL_POLL", no_kp, &no_kp_sz);
+ int res = erts_sys_getenv_raw("ERL_NO_KERNEL_POLL", no_kp, &no_kp_sz);
if (res > 0
|| (res == 0
&& sys_strcmp("false", no_kp) != 0
diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h
index 21c52ca26d..db4b9999d6 100644
--- a/erts/emulator/sys/win32/erl_win_sys.h
+++ b/erts/emulator/sys/win32/erl_win_sys.h
@@ -176,8 +176,8 @@ extern clock_t sys_times(SysTimes *buffer);
extern char *win_build_environment(char *);
typedef struct {
- char *environment_strings;
- char *next_string;
+ WCHAR *environment_strings;
+ WCHAR *next_string;
} GETENV_STATE;
void erts_sys_env_init(void);
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index acbbfc2ce9..29e2749800 100755
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -1204,9 +1204,7 @@ spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts)
*/
DEBUGF(("Spawning \"%s\"\n", name));
- envir = win_build_environment(envir); /* Still an ansi environment, could be
- converted to unicode for spawn_executable, but
- that is not done (yet) */
+ envir = win_build_environment(envir); /* Always a unicode environment */
ok = create_child_process(name,
hChildStdin,
hChildStdout,
@@ -1485,7 +1483,8 @@ create_child_process
NULL,
NULL,
TRUE,
- createFlags | staticCreateFlags,
+ createFlags | staticCreateFlags |
+ CREATE_UNICODE_ENVIRONMENT,
env,
wd,
&siStartInfo,
@@ -1613,7 +1612,8 @@ create_child_process
NULL,
NULL,
TRUE,
- createFlags | staticCreateFlags,
+ createFlags | staticCreateFlags |
+ CREATE_UNICODE_ENVIRONMENT,
env,
(WCHAR *) wd,
&siStartInfo,
diff --git a/erts/emulator/sys/win32/sys_env.c b/erts/emulator/sys/win32/sys_env.c
index 064745d418..658a77c824 100644
--- a/erts/emulator/sys/win32/sys_env.c
+++ b/erts/emulator/sys/win32/sys_env.c
@@ -1,271 +1,299 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 2002-2011. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include "sys.h"
-#include "erl_sys_driver.h"
-#include "erl_alloc.h"
-
-static char* merge_environment(char *current, char *add);
-static char* arg_to_env(char **arg);
-static char** env_to_arg(char *env);
-static char** find_arg(char **arg, char *str);
-static int compare(const void *a, const void *b);
-
-static erts_smp_rwmtx_t environ_rwmtx;
-
-void
-erts_sys_env_init(void)
-{
- erts_smp_rwmtx_init(&environ_rwmtx, "environ");
-}
-
-int
-erts_sys_putenv(char *key_value, int sep_ix)
-{
- int res;
- char sep = key_value[sep_ix];
- ASSERT(sep == '=');
- key_value[sep_ix] = '\0';
- erts_smp_rwmtx_rwlock(&environ_rwmtx);
- res = (SetEnvironmentVariable((LPCTSTR) key_value,
- (LPCTSTR) &key_value[sep_ix+1]) ? 0 : 1);
- erts_smp_rwmtx_rwunlock(&environ_rwmtx);
- key_value[sep_ix] = sep;
- return res;
-}
-
-int
-erts_sys_getenv__(char *key, char *value, size_t *size)
-{
- size_t req_size = 0;
- int res = 0;
- DWORD new_size;
-
- SetLastError(0);
- new_size = GetEnvironmentVariable((LPCTSTR) key,
- (LPTSTR) value,
- (DWORD) *size);
- res = !new_size && GetLastError() == ERROR_ENVVAR_NOT_FOUND ? -1 : 0;
- if (res < 0)
- return res;
- res = new_size > *size ? 1 : 0;
- *size = new_size;
- return res;
-}
-
-int
-erts_sys_getenv(char *key, char *value, size_t *size)
-{
- int res;
- erts_smp_rwmtx_rlock(&environ_rwmtx);
- res = erts_sys_getenv__(key, value, size);
- erts_smp_rwmtx_runlock(&environ_rwmtx);
- return res;
-}
-
-struct win32_getenv_state {
- char *env;
- char *next;
-};
-
-
-void init_getenv_state(GETENV_STATE *state)
-{
- erts_smp_rwmtx_rlock(&environ_rwmtx);
- state->environment_strings = (char *) GetEnvironmentStrings();
- state->next_string = state->environment_strings;
-}
-
-char *getenv_string(GETENV_STATE *state)
-{
- ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&environ_rwmtx));
- if (state->next_string[0] == '\0')
- return NULL;
- else {
- char *res = state->next_string;
- state->next_string += sys_strlen(res) + 1;
- return res;
- }
-}
-
-void fini_getenv_state(GETENV_STATE *state)
-{
- FreeEnvironmentStrings(state->environment_strings);
- state->environment_strings = state->next_string = NULL;
- erts_smp_rwmtx_runlock(&environ_rwmtx);
-}
-
-char*
-win_build_environment(char* new_env)
-{
- if (new_env == NULL) {
- return NULL;
- } else {
- char *tmp, *merged;
-
- erts_smp_rwmtx_rlock(&environ_rwmtx);
- tmp = GetEnvironmentStrings();
- merged = merge_environment(tmp, new_env);
-
- FreeEnvironmentStrings(tmp);
- erts_smp_rwmtx_runlock(&environ_rwmtx);
- return merged;
- }
-}
-
-static char*
-merge_environment(char *old, char *add)
-{
- char **a_arg = env_to_arg(add);
- char **c_arg = env_to_arg(old);
- char *ret;
- int i, j;
-
- for(i = 0; c_arg[i] != NULL; ++i)
- ;
-
- for(j = 0; a_arg[j] != NULL; ++j)
- ;
-
- c_arg = erts_realloc(ERTS_ALC_T_TMP,
- c_arg, (i+j+1) * sizeof(char *));
-
- for(j = 0; a_arg[j] != NULL; ++j){
- char **tmp;
- char *current = a_arg[j];
- char *eq_p = strchr(current,'=');
- int unset = (eq_p!=NULL && eq_p[1]=='\0');
-
- if ((tmp = find_arg(c_arg, current)) != NULL) {
- if (!unset) {
- *tmp = current;
- } else {
- *tmp = c_arg[--i];
- c_arg[i] = NULL;
- }
- } else if (!unset) {
- c_arg[i++] = current;
- c_arg[i] = NULL;
- }
- }
- ret = arg_to_env(c_arg);
- erts_free(ERTS_ALC_T_TMP, c_arg);
- erts_free(ERTS_ALC_T_TMP, a_arg);
- return ret;
-}
-
-static char**
-find_arg(char **arg, char *str)
-{
- char *tmp;
- int len;
-
- if ((tmp = strchr(str, '=')) != NULL) {
- tmp++;
- len = tmp - str;
- while (*arg != NULL){
- if (_strnicmp(*arg, str, len) == 0){
- return arg;
- }
- ++arg;
- }
- }
- return NULL;
-}
-
-static int
-compare(const void *a, const void *b)
-{
- char *s1 = *((char **) a);
- char *s2 = *((char **) b);
- char *e1 = strchr(s1,'=');
- char *e2 = strchr(s2,'=');
- int ret;
- int len;
-
- if(!e1)
- e1 = s1 + strlen(s1);
- if(!e2)
- e2 = s2 + strlen(s2);
-
- if((e1 - s1) > (e2 - s2))
- len = (e2 - s2);
- else
- len = (e1 - s1);
-
- ret = _strnicmp(s1,s2,len);
- if (ret == 0)
- return ((e1 - s1) - (e2 - s2));
- else
- return ret;
-}
-
-static char**
-env_to_arg(char *env)
-{
- char **ret;
- char *tmp;
- int i;
- int num_strings = 0;
-
- for(tmp = env; *tmp != '\0'; tmp += strlen(tmp)+1) {
- ++num_strings;
- }
- ret = erts_alloc(ERTS_ALC_T_TMP, sizeof(char *) * (num_strings + 1));
- i = 0;
- for(tmp = env; *tmp != '\0'; tmp += strlen(tmp)+1){
- ret[i++] = tmp;
- }
- ret[i] = NULL;
- return ret;
-}
-
-static char*
-arg_to_env(char **arg)
-{
- char *block;
- char *ptr;
- int i;
- int totlen = 1; /* extra '\0' */
-
- for(i = 0; arg[i] != NULL; ++i) {
- totlen += strlen(arg[i])+1;
- }
-
- /* sort the environment vector */
- qsort(arg, i, sizeof(char *), &compare);
-
- if (totlen == 1){
- block = erts_alloc(ERTS_ALC_T_ENVIRONMENT, 2);
- block[0] = block[1] = '\0';
- } else {
- block = erts_alloc(ERTS_ALC_T_ENVIRONMENT, totlen);
- ptr = block;
- for(i=0; arg[i] != NULL; ++i){
- strcpy(ptr, arg[i]);
- ptr += strlen(ptr)+1;
- }
- *ptr = '\0';
- }
- return block;
-}
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2002-2011. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "sys.h"
+#include "erl_sys_driver.h"
+#include "erl_alloc.h"
+
+static WCHAR *merge_environment(WCHAR *current, WCHAR *add);
+static WCHAR *arg_to_env(WCHAR **arg);
+static WCHAR **env_to_arg(WCHAR *env);
+static WCHAR **find_arg(WCHAR **arg, WCHAR *str);
+static int compare(const void *a, const void *b);
+
+static erts_smp_rwmtx_t environ_rwmtx;
+
+void
+erts_sys_env_init(void)
+{
+ erts_smp_rwmtx_init(&environ_rwmtx, "environ");
+}
+
+int
+erts_sys_putenv_raw(char *key, char *value)
+{
+ int res;
+ erts_smp_rwmtx_rwlock(&environ_rwmtx);
+ res = (SetEnvironmentVariable((LPCTSTR) key,
+ (LPCTSTR) value) ? 0 : 1);
+ erts_smp_rwmtx_rwunlock(&environ_rwmtx);
+ return res;
+}
+
+int
+erts_sys_putenv(char *key, char *value)
+{
+ int res;
+ WCHAR *wkey = (WCHAR *) key;
+ WCHAR *wvalue = (WCHAR *) value;
+ erts_smp_rwmtx_rwlock(&environ_rwmtx);
+ res = (SetEnvironmentVariableW(wkey,
+ wvalue) ? 0 : 1);
+ erts_smp_rwmtx_rwunlock(&environ_rwmtx);
+ return res;
+}
+
+int
+erts_sys_getenv(char *key, char *value, size_t *size)
+{
+ size_t req_size = 0;
+ int res = 0;
+ DWORD new_size;
+ WCHAR *wkey = (WCHAR *) key;
+ WCHAR *wvalue = (WCHAR *) value;
+ DWORD wsize = *size / (sizeof(WCHAR) / sizeof(char));
+
+ SetLastError(0);
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ new_size = GetEnvironmentVariableW(wkey,
+ wvalue,
+ (DWORD) wsize);
+ res = !new_size && GetLastError() == ERROR_ENVVAR_NOT_FOUND ? -1 : 0;
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+ if (res < 0)
+ return res;
+ res = new_size > wsize ? 1 : 0;
+ *size = new_size * (sizeof(WCHAR) / sizeof(char));
+ return res;
+}
+int
+erts_sys_getenv__(char *key, char *value, size_t *size)
+{
+ size_t req_size = 0;
+ int res = 0;
+ DWORD new_size;
+
+ SetLastError(0);
+ new_size = GetEnvironmentVariable((LPCTSTR) key,
+ (LPTSTR) value,
+ (DWORD) *size);
+ res = !new_size && GetLastError() == ERROR_ENVVAR_NOT_FOUND ? -1 : 0;
+ if (res < 0)
+ return res;
+ res = new_size > *size ? 1 : 0;
+ *size = new_size;
+ return res;
+}
+
+int
+erts_sys_getenv_raw(char *key, char *value, size_t *size)
+{
+ int res;
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ res = erts_sys_getenv__(key, value, size);
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+ return res;
+}
+
+void init_getenv_state(GETENV_STATE *state)
+{
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ state->environment_strings = GetEnvironmentStringsW();
+ state->next_string = state->environment_strings;
+}
+
+char *getenv_string(GETENV_STATE *state)
+{
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&environ_rwmtx));
+ if (state->next_string[0] == L'\0') {
+ return NULL;
+ } else {
+ WCHAR *res = state->next_string;
+ state->next_string += wcslen(res) + 1;
+ return (char *) res;
+ }
+}
+
+void fini_getenv_state(GETENV_STATE *state)
+{
+ FreeEnvironmentStringsW(state->environment_strings);
+ state->environment_strings = state->next_string = NULL;
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+}
+
+char*
+win_build_environment(char* new_env)
+{
+ if (new_env == NULL) {
+ return NULL;
+ } else {
+ WCHAR *tmp, *merged, *tmp_new;
+
+ tmp_new = (WCHAR *) new_env;
+
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ tmp = GetEnvironmentStringsW();
+ merged = merge_environment(tmp, tmp_new);
+
+ FreeEnvironmentStringsW(tmp);
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+ return (char *) merged;
+ }
+}
+
+static WCHAR *
+merge_environment(WCHAR *old, WCHAR *add)
+{
+ WCHAR **a_arg = env_to_arg(add);
+ WCHAR **c_arg = env_to_arg(old);
+ WCHAR *ret;
+ int i, j;
+
+ for(i = 0; c_arg[i] != NULL; ++i)
+ ;
+
+ for(j = 0; a_arg[j] != NULL; ++j)
+ ;
+
+ c_arg = erts_realloc(ERTS_ALC_T_TMP,
+ c_arg, (i+j+1) * sizeof(WCHAR *));
+
+ for(j = 0; a_arg[j] != NULL; ++j){
+ WCHAR **tmp;
+ WCHAR *current = a_arg[j];
+ WCHAR *eq_p = wcschr(current,L'=');
+ int unset = (eq_p!=NULL && eq_p[1]==L'\0');
+
+ if ((tmp = find_arg(c_arg, current)) != NULL) {
+ if (!unset) {
+ *tmp = current;
+ } else {
+ *tmp = c_arg[--i];
+ c_arg[i] = NULL;
+ }
+ } else if (!unset) {
+ c_arg[i++] = current;
+ c_arg[i] = NULL;
+ }
+ }
+ ret = arg_to_env(c_arg);
+ erts_free(ERTS_ALC_T_TMP, c_arg);
+ erts_free(ERTS_ALC_T_TMP, a_arg);
+ return ret;
+}
+
+static WCHAR**
+find_arg(WCHAR **arg, WCHAR *str)
+{
+ WCHAR *tmp;
+ int len;
+
+ if ((tmp = wcschr(str, L'=')) != NULL) {
+ tmp++;
+ len = tmp - str;
+ while (*arg != NULL){
+ if (_wcsnicmp(*arg, str, len) == 0){
+ return arg;
+ }
+ ++arg;
+ }
+ }
+ return NULL;
+}
+
+static int
+compare(const void *a, const void *b)
+{
+ WCHAR *s1 = *((WCHAR **) a);
+ WCHAR *s2 = *((WCHAR **) b);
+ WCHAR *e1 = wcschr(s1,L'=');
+ WCHAR *e2 = wcschr(s2,L'=');
+ int ret;
+ int len;
+
+ if(!e1)
+ e1 = s1 + wcslen(s1);
+ if(!e2)
+ e2 = s2 + wcslen(s2);
+
+ if((e1 - s1) > (e2 - s2))
+ len = (e2 - s2);
+ else
+ len = (e1 - s1);
+
+ ret = _wcsnicmp(s1,s2,len);
+ if (ret == 0)
+ return ((e1 - s1) - (e2 - s2));
+ else
+ return ret;
+}
+
+static WCHAR**
+env_to_arg(WCHAR *env)
+{
+ WCHAR **ret;
+ WCHAR *tmp;
+ int i;
+ int num_strings = 0;
+
+ for(tmp = env; *tmp != '\0'; tmp += wcslen(tmp)+1) {
+ ++num_strings;
+ }
+ ret = erts_alloc(ERTS_ALC_T_TMP, sizeof(WCHAR *) * (num_strings + 1));
+ i = 0;
+ for(tmp = env; *tmp != '\0'; tmp += wcslen(tmp)+1){
+ ret[i++] = tmp;
+ }
+ ret[i] = NULL;
+ return ret;
+}
+
+static WCHAR *
+arg_to_env(WCHAR **arg)
+{
+ WCHAR *block;
+ WCHAR *ptr;
+ int i;
+ int totlen = 1; /* extra '\0' */
+
+ for(i = 0; arg[i] != NULL; ++i) {
+ totlen += wcslen(arg[i])+1;
+ }
+
+ /* sort the environment vector */
+ qsort(arg, i, sizeof(WCHAR *), &compare);
+
+ if (totlen == 1){
+ block = erts_alloc(ERTS_ALC_T_ENVIRONMENT, 2 * sizeof(WCHAR));
+ block[0] = block[1] = '\0';
+ } else {
+ block = erts_alloc(ERTS_ALC_T_ENVIRONMENT, totlen * sizeof(WCHAR));
+ ptr = block;
+ for(i=0; arg[i] != NULL; ++i){
+ wcscpy(ptr, arg[i]);
+ ptr += wcslen(ptr)+1;
+ }
+ *ptr = '\0';
+ }
+ return block;
+}