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apps/nshlib: If CONFIG_NSH_VARS=y, the NSH 'set' command with not argument will list all of the local NSH variables.

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This commit is contained in:
Gregory Nutt
2018-10-02 11:54:18 -06:00
parent cb982ea8df
commit cf6c6a9556
5 changed files with 128 additions and 7 deletions
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24
nshlib/nsh_envcmds.c
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@@ -124,6 +124,19 @@ static inline char *nsh_getdirpath(FAR struct nsh_vtbl_s *vtbl,
return alloc;
}
/****************************************************************************
* Name: nsh_dumpvar
****************************************************************************/
#if defined(CONFIG_NSH_VARS) && !defined(CONFIG_NSH_DISABLE_SET)
static int nsh_dumpvar(FAR struct nsh_vtbl_s *vtbl, FAR void *arg,
FAR const char *pair)
{
nsh_output(vtbl, "%s\n", pair);
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
@@ -336,8 +349,17 @@ int cmd_set(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
const char opts[] = NSH_NP_SET_OPTIONS;
int op;
/* REVISIT: set with no arguments should show all of the NSH variables */
#ifdef CONFIG_NSH_VARS
/* Set with no arguments will show all of the NSH variables */
if (argc == 1)
{
ret = nsh_foreach_var(vtbl, nsh_dumpvar, NULL);
nsh_output(vtbl, "\n");
return ret < 0 ? ERROR : OK;
}
else
#endif
#ifdef NSH_HAVE_VARS
/* Support set [{+|-}{e|x|xe|ex}] [<name> <value>] */