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Change to detect and use O_CLOEXEC

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This commit is contained in:
ridiculousfish 2012-03-02 09:58:29 -08:00
parent 8b26d0104c
commit 17a75a5aa5
1 changed files with 7 additions and 0 deletions
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7
wutil.cpp
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@ -201,6 +201,13 @@ bool set_cloexec(int fd) {
static int wopen_internal(const wcstring &pathname, int flags, mode_t mode, bool cloexec)
{
cstring tmp = wcs2string(pathname);
/* Prefer to use O_CLOEXEC. It has to both be defined and nonzero */
#ifdef O_CLOEXEC
if (cloexec && O_CLOEXEC) {
flags |= O_CLOEXEC;
cloexec = false;
}
#endif
int fd = ::open(tmp.c_str(), flags, mode);
if (cloexec && fd >= 0 && ! set_cloexec(fd)) {
close(fd);