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Update a README/Improve some C comments.

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This commit is contained in:
Gregory Nutt
2018-10-02 06:53:16 -06:00
parent 65e0b791b7
commit 8b01ea4434
2 changed files with 41 additions and 17 deletions
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9
nshlib/nsh_envcmds.c
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@@ -411,6 +411,9 @@ int cmd_set(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
#ifndef CONFIG_DISABLE_ENVIRON
/* Check if the NSH variable has already been promoted to an group-
* wide environment variable.
*
* REVISIT: Is this the correct behavior? Bash would create/modify
* a local variable that shadows the environment variable.
*/
oldvalue = getenv(argv[ndx]);
@@ -529,7 +532,11 @@ int cmd_export(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
}
else
{
/* Unset NSH variable */
/* Unset NSH variable.
*
* REVISIT: Is this the correct behavior? Bash would retain
* a local variable that shadows the environment variable.
*/
status = nsh_unsetvar(vtbl, argv[1]);
if (status < 0 && status != -ENOENT)