nsh: fix nsh redirect fd double close

avoid double-close of redirection fds

Signed-off-by: zhenwei fang <fangzhenwei@bytedance.com>

nshlib/nsh_parse.c

@@ -729,6 +729,8 @@ static int nsh_execute(FAR struct nsh_vtbl_s *vtbl,
           vtbl->np.np_redir_err)
         {
           nsh_undirect(vtbl, save);
+          fd_out = -1;
+          fd_in = -1;
         }
 
       /* Mark errors so that it is possible to test for non-zero return

system/nxcamera/nxcamera_main.c

@@ -420,7 +420,7 @@ int main(int argc, FAR char *argv[])
       return -ENOMEM;
     }
 
-  buffer = lib_get_tempbuffer(CONFIG_NSH_LINELEN);
+  buffer = lib_get_tempbuffer(LINE_MAX);
   if (buffer == NULL)
     {
       nxcamera_release(pcam);
@@ -439,7 +439,7 @@ int main(int argc, FAR char *argv[])
 
       /* Read a line from the terminal */
 
-      len = readline_stream(buffer, CONFIG_NSH_LINELEN,
+      len = readline_stream(buffer, LINE_MAX,
                             stdin, stdout);
       if (len > 0)
         {

system/nxlooper/nxlooper_main.c

@@ -521,7 +521,7 @@ int main(int argc, FAR char *argv[])
       return -ENOMEM;
     }
 
-  buffer = lib_get_tempbuffer(CONFIG_NSH_LINELEN);
+  buffer = lib_get_tempbuffer(LINE_MAX);
   if (buffer == NULL)
     {
       nxlooper_release(plooper);
@@ -541,7 +541,7 @@ int main(int argc, FAR char *argv[])
 
       /* Read a line from the terminal */
 
-      len = readline_stream(buffer, CONFIG_NSH_LINELEN,
+      len = readline_stream(buffer, LINE_MAX,
                             stdin, stdout);
       if (len > 0)
         {

system/nxplayer/nxplayer_main.c

@@ -810,7 +810,7 @@ int main(int argc, FAR char *argv[])
       return -ENOMEM;
     }
 
-  buffer = lib_get_tempbuffer(CONFIG_NSH_LINELEN);
+  buffer = lib_get_tempbuffer(LINE_MAX);
   if (buffer == NULL)
     {
       nxplayer_release(pplayer);
@@ -830,7 +830,7 @@ int main(int argc, FAR char *argv[])
 
       /* Read a line from the terminal */
 
-      len = readline_stream(buffer, CONFIG_NSH_LINELEN,
+      len = readline_stream(buffer, LINE_MAX,
                             stdin, stdout);
       if (len > 0)
         {

system/nxrecorder/nxrecorder_main.c

@@ -550,7 +550,7 @@ int main(int argc, FAR char *argv[])
       return -ENOMEM;
     }
 
-  buffer = lib_get_tempbuffer(CONFIG_NSH_LINELEN);
+  buffer = lib_get_tempbuffer(LINE_MAX);
   if (buffer == NULL)
     {
       nxrecorder_release(precorder);
@@ -570,7 +570,7 @@ int main(int argc, FAR char *argv[])
 
       /* Read a line from the terminal */
 
-      len = readline_stream(buffer, CONFIG_NSH_LINELEN,
+      len = readline_stream(buffer, LINE_MAX,
                             stdin, stdout);
       if (len > 0)
         {