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Assume that O_CLOEXEC is always defined and works

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This commit is contained in:
Florian Weimer
2017-04-18 14:56:51 +02:00
parent b48061e1a5
commit cef9b65376
27 changed files with 91 additions and 565 deletions
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35
nss/nss_files/files-alias.c
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@@ -51,41 +51,6 @@ internal_setent (FILE **stream)
if (*stream == NULL)
status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
else
{
#if !defined O_CLOEXEC || !defined __ASSUME_O_CLOEXEC
# ifdef O_CLOEXEC
if (__have_o_cloexec <= 0)
# endif
{
/* We have to make sure the file is `closed on exec'. */
int result;
int flags;
result = flags = fcntl (fileno (*stream), F_GETFD, 0);
if (result >= 0)
{
# ifdef O_CLOEXEC
if (__have_o_cloexec == 0)
__have_o_cloexec = (flags & FD_CLOEXEC) == 0 ? -1 : 1;
if (__have_o_cloexec < 0)
# endif
{
flags |= FD_CLOEXEC;
result = fcntl (fileno (*stream), F_SETFD, flags);
}
}
if (result < 0)
{
/* Something went wrong. Close the stream and return a
failure. */
fclose (*stream);
stream = NULL;
status = NSS_STATUS_UNAVAIL;
}
}
#endif
}
}
else
rewind (*stream);