diff options
| -rw-r--r-- | winsup/cygwin/release/3.2.0 | 4 | ||||
| -rw-r--r-- | winsup/cygwin/syscalls.cc | 19 |
2 files changed, 23 insertions, 0 deletions
diff --git a/winsup/cygwin/release/3.2.0 b/winsup/cygwin/release/3.2.0 index f748a9bc8..d02d16863 100644 --- a/winsup/cygwin/release/3.2.0 +++ b/winsup/cygwin/release/3.2.0 @@ -19,6 +19,10 @@ What changed: - A few FAQ updates. +- Have tmpfile(3) make use of Win32 FILE_ATTRIBUTE_TEMPORARY via open(2) + flag O_TMPFILE. + Addresses: https://cygwin.com/pipermail/cygwin/2021-January/247304.html + Bug Fixes --------- diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 52a020f07..d04b2d9b3 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -5225,3 +5225,22 @@ pipe2 (int filedes[2], int mode) syscall_printf ("%R = pipe2([%d, %d], %y)", res, read, write, mode); return res; } + +extern "C" FILE * +tmpfile (void) +{ + char *dir = getenv ("TMPDIR"); + if (!dir) + dir = P_tmpdir; + int fd = open (dir, O_RDWR | O_BINARY | O_TMPFILE, S_IRUSR | S_IWUSR); + if (fd < 0) + return NULL; + FILE *fp = fdopen (fd, "wb+"); + int e = errno; + if (!fp) + close (fd); // ..will remove tmp file + set_errno (e); + return fp; +} + +EXPORT_ALIAS (tmpfile, tmpfile64) |