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| author | Christopher Faylor <me@cgf.cx> | 2001-11-14 04:13:10 +0000 |
|---|---|---|
| committer | Christopher Faylor <me@cgf.cx> | 2001-11-14 04:13:10 +0000 |
| commit | c9597ae2314b2e3f36139081f389b394203ea92c (patch) | |
| tree | 70e26daa25f7f08df29202983b6f6c0c5ab4a714 | |
| parent | 1e5d06f2eac0f6655c6d67689f66786dde14fd86 (diff) | |
| download | newlib-unlabeled-1.172.4.zip newlib-unlabeled-1.172.4.tar.gz newlib-unlabeled-1.172.4.tar.bz2 | |
* syscalls.cc (_write): Allow zero length as per SUSv2.github/unlabeled-1.172.4unlabeled-1.172.4
| -rw-r--r-- | winsup/cygwin/syscalls.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 3b2104d..f181852 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -355,6 +355,9 @@ _read (int fd, void *ptr, size_t len) extern "C" ssize_t _write (int fd, const void *ptr, size_t len) { + if (len == 0) + return 0; + if (__check_invalid_read_ptr_errno (ptr, len)) return -1; |