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| author | Ulrich Drepper <drepper@redhat.com> | 2004-02-23 23:30:12 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-02-23 23:30:12 +0000 |
| commit | 16edf13b226dbe5f4f39794cfa363904af2c7973 (patch) | |
| tree | ab38d57dd3ddfeaae672f0253a2bbdfb759ee96f /wcsmbs/mbrtowc.c | |
| parent | 5605e1177d4728b66b92cb5012810b5feda1ec4b (diff) | |
| download | glibc-16edf13b226dbe5f4f39794cfa363904af2c7973.tar.gz glibc-16edf13b226dbe5f4f39794cfa363904af2c7973.tar.xz glibc-16edf13b226dbe5f4f39794cfa363904af2c7973.zip | |
Update.
* wcsmbs/mbrtowc.c (__mbrtowc): Cap s + n at the end of address space. * stdlib/Makefile (tests): Add testmb2. (testmb2-ENV): New. * stdlib/testmb2.c: New test. 2004-02-23 Jakub Jelinek <jakub@redhat.com>
Diffstat (limited to 'wcsmbs/mbrtowc.c')
| -rw-r--r-- | wcsmbs/mbrtowc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c index de79e10e5d..6932b047ae 100644 --- a/wcsmbs/mbrtowc.c +++ b/wcsmbs/mbrtowc.c @@ -1,4 +1,5 @@ -/* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2004 + Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.org>, 1996. @@ -40,7 +41,7 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) int status; size_t result; size_t dummy; - const unsigned char *inbuf; + const unsigned char *inbuf, *endbuf; char *outbuf = (char *) (pwc ?: buf); const struct gconv_fcts *fcts; @@ -69,8 +70,11 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) /* Do a normal conversion. */ inbuf = (const unsigned char *) s; + endbuf = inbuf + n; + if (__builtin_expect (endbuf < inbuf, 0)) + endbuf = (const unsigned char *) ~(uintptr_t) 0; status = DL_CALL_FCT (fcts->towc->__fct, - (fcts->towc, &data, &inbuf, inbuf + n, + (fcts->towc, &data, &inbuf, endbuf, NULL, &dummy, 0, 1)); /* There must not be any problems with the conversion but illegal input |