apps/system: replace CONFIG_NSH_LINELEN to LINE_MAX

Applications should not depend on any properties of nshlib

Signed-off-by: chao an <anchao@lixiang.com>

examples/lp503x/lp503x_main.c

@@ -626,7 +626,7 @@ static int lp503x_cmd_help(FAR char *parg)
 int main(int argc, FAR char *argv[])
 {
   bool running;
-  char buffer[CONFIG_NSH_LINELEN];
+  char buffer[LINE_MAX];
   int len;
   int x;
   char *cmd;

netutils/rexec/rexec.c

@@ -155,7 +155,7 @@ static int do_rexec(FAR struct rexec_arg_s *arg)
 
 int main(int argc, FAR char **argv)
 {
-  char cmd[CONFIG_NSH_LINELEN];
+  char cmd[LINE_MAX];
   struct rexec_arg_s arg;
   int option;
   int i;

nshlib/nsh.h

@@ -382,7 +382,7 @@
 /* Maximum size of one command line (telnet or serial) */
 
 #ifndef CONFIG_NSH_LINELEN
-#  define CONFIG_NSH_LINELEN 80
+#  define CONFIG_NSH_LINELEN LINE_MAX
 #endif
 
 /* The maximum number of nested if-then[-else]-fi sequences that

system/nxcamera/nxcamera_main.c

@@ -398,7 +398,7 @@ static int nxcamera_cmd_help(FAR struct nxcamera_s *pcam, FAR char *parg)
 
 int main(int argc, FAR char *argv[])
 {
-  char                  buffer[CONFIG_NSH_LINELEN];
+  char                  buffer[LINE_MAX];
   int                   len;
   int                   x;
   bool                  running = true;

system/nxlooper/nxlooper_main.c

@@ -502,7 +502,7 @@ static int nxlooper_cmd_help(FAR struct nxlooper_s *plooper, char *parg)
 
 int main(int argc, FAR char *argv[])
 {
-  char                  buffer[CONFIG_NSH_LINELEN];
+  char                  buffer[LINE_MAX];
   int                   len;
   int                   x;
   int                   running;

system/nxplayer/nxplayer_main.c

@@ -739,7 +739,7 @@ static int nxplayer_cmd_help(FAR struct nxplayer_s *pplayer, char *parg)
 
 int main(int argc, FAR char *argv[])
 {
-  char                    buffer[CONFIG_NSH_LINELEN];
+  char                    buffer[LINE_MAX];
   int                     len;
   int                     x;
   int                     running;

system/nxrecorder/nxrecorder_main.c

@@ -531,7 +531,7 @@ static int nxrecorder_cmd_help(FAR struct nxrecorder_s *precorder,
 
 int main(int argc, FAR char *argv[])
 {
-  char                    buffer[CONFIG_NSH_LINELEN];
+  char                    buffer[LINE_MAX];
   int                     len;
   int                     x;
   int                     running;

system/readline/readline.c

@@ -32,16 +32,6 @@
 
 #include "system/readline.h"
 
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/* Maximum size of one command line (telnet or serial) */
-
-#ifndef CONFIG_NSH_LINELEN
-#  define CONFIG_NSH_LINELEN 80
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -59,14 +49,14 @@
 
 FAR char *readline(FAR const char *prompt)
 {
-  FAR char *line = malloc(CONFIG_NSH_LINELEN);
+  FAR char *line = malloc(LINE_MAX);
 
   if (line != NULL)
     {
 #ifdef CONFIG_READLINE_TABCOMPLETION
       FAR const char *orig = readline_prompt(prompt);
 #endif
-      if (readline_fd(line, CONFIG_NSH_LINELEN,
+      if (readline_fd(line, LINE_MAX,
                       STDIN_FILENO, STDOUT_FILENO) == 0)
         {
           free(line);

system/taskset/taskset.c

@@ -82,7 +82,7 @@ static bool get_cpuset(const char *arg, cpu_set_t *cpu_set)
 
 int main(int argc, FAR char *argv[])
 {
-  char command[CONFIG_NSH_LINELEN];
+  char command[LINE_MAX];
   int exitcode;
   int option;
   int pid = -1;
@@ -153,7 +153,7 @@ int main(int argc, FAR char *argv[])
             }
 
           /* Construct actual command with args
-           * NOTE: total length does not exceed CONFIG_NSH_LINELEN
+           * NOTE: total length does not exceed LINE_MAX
            */
 
           for (i = 0; i < argc - 2; i++)

system/trace/trace.c

@@ -229,7 +229,7 @@ static int trace_cmd_dump(FAR const char *name, int index, int argc,
 static int trace_cmd_cmd(FAR const char *name, int index, int argc,
                          FAR char **argv, int notectlfd)
 {
-  char command[CONFIG_NSH_LINELEN];
+  char command[LINE_MAX];
   bool changed;
   bool cont = false;