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NSH library: In nsh_argexand(), if CONFIG_NSH_ARGCAT is defined but CONFIG_NSH_CMDPARMS defined and/or CONFIG_DISABLE_ENVIRON not defined, then there is a situation that causes an infinite loop in the parser. Noted by Freddie Chopin.
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@@ -1,7 +1,7 @@
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/****************************************************************************
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* apps/nshlib/nsh_parse.c
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*
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* Copyright (C) 2007-2013, 2014 Gregory Nutt. All rights reserved.
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* Copyright (C) 2007-2013, 2014, 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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@@ -1180,7 +1180,11 @@ static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
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else
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#endif
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{
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/* Just to catch any dangling else clauses */
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/* Not a special character... skip to the next character in the
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* cmdline.
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*/
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working++;
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}
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}
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}
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