diff options
Diffstat (limited to 'wcsmbs/mbrtowc.c')
| -rw-r--r-- | wcsmbs/mbrtowc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c index 03b8348d30..0c99b7401d 100644 --- a/wcsmbs/mbrtowc.c +++ b/wcsmbs/mbrtowc.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2005, 2011 +/* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2005, 2011, 2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.org>, 1996. @@ -73,7 +73,11 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) inbuf = (const unsigned char *) s; endbuf = inbuf + n; if (__builtin_expect (endbuf < inbuf, 0)) - endbuf = (const unsigned char *) ~(uintptr_t) 0; + { + endbuf = (const unsigned char *) ~(uintptr_t) 0; + if (endbuf == inbuf) + goto ilseq; + } __gconv_fct fct = fcts->towc->__fct; #ifdef PTR_DEMANGLE if (fcts->towc->__shlib_handle != NULL) @@ -108,6 +112,7 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) result = (size_t) -2; else { + ilseq: result = (size_t) -1; __set_errno (EILSEQ); } |