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| author | A. Wilcox <AWilcox@Wilcox-Tech.com> | 2019-05-07 20:02:39 -0500 |
|---|---|---|
| committer | A. Wilcox <AWilcox@Wilcox-Tech.com> | 2019-05-07 20:02:39 -0500 |
| commit | c820eed56f8e30a524050d8f91148decfea1ec9b (patch) | |
| tree | 019992d2f05a68c4a863939a25c54d6356108596 | |
| parent | 620e2ff5197dbf6c6e1a8ca6faf532dc2e874e65 (diff) | |
| download | gcompat-c820eed56f8e30a524050d8f91148decfea1ec9b.tar.gz gcompat-c820eed56f8e30a524050d8f91148decfea1ec9b.tar.bz2 gcompat-c820eed56f8e30a524050d8f91148decfea1ec9b.tar.xz gcompat-c820eed56f8e30a524050d8f91148decfea1ec9b.zip | |
wchar: Add __wcscpy_chk
| -rw-r--r-- | CHANGELOG.rst | 5 | ||||
| -rw-r--r-- | libgcompat/wchar.c | 21 |
2 files changed, 26 insertions, 0 deletions
diff --git a/CHANGELOG.rst b/CHANGELOG.rst index 5a17069..a4d7698 100644 --- a/CHANGELOG.rst +++ b/CHANGELOG.rst @@ -11,6 +11,11 @@ 1.0.0 (20??-??-??) ================== +wchar +----- + +* Add __wcscpy_chk. + 0.4.0 (2019-05-03) ================== diff --git a/libgcompat/wchar.c b/libgcompat/wchar.c index c60963e..1a5a23c 100644 --- a/libgcompat/wchar.c +++ b/libgcompat/wchar.c @@ -40,6 +40,27 @@ int __vswprintf_chk(wchar_t *s, size_t n, int flag, size_t slen, } /** + * Copy a wide-character string, with buffer overflow checking + * + * LSB 5.0: LSB-Core-generic/baselib---wcscpy-chk-1.html + */ +wchar_t *__wcscpy_chk(wchar_t *dest, const wchar_t *src, size_t n) +{ + size_t srclen = wcslen(src) + 1; + + assert(dest != NULL); + assert(src != NULL); + assert(n >= srclen); + if (dest < src) { + assert(dest + n <= src); + } else { + assert(src + n <= dest); + } + + return wcscpy(dest, src); +} + +/** * Representation of the glibc internals of wcstol(3). * * LSB 5.0: LSB-Core-generic/baselib---wcstol-internal-1.html |