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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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This commit is contained in:
Gregory Nutt 2017-03-09 08:06:53 -06:00
parent ad5784b24a
commit 2ef46ce4ba
1 changed files with 6 additions and 2 deletions
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8
nshlib/nsh_parse.c
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@ -1,7 +1,7 @@
/**************************************************************************** /****************************************************************************
* apps/nshlib/nsh_parse.c * apps/nshlib/nsh_parse.c
* *
* Copyright (C) 2007-2013, 2014 Gregory Nutt. All rights reserved. * Copyright (C) 2007-2013, 2014, 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org> * Author: Gregory Nutt <gnutt@nuttx.org>
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
@ -1180,7 +1180,11 @@ static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
else else
#endif #endif
{ {
/* Just to catch any dangling else clauses */ /* Not a special character... skip to the next character in the
* cmdline.
*/
working++;
} }
} }
} }