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| author | Jarkko Hietaniemi <jhi@iki.fi> | 2015-08-26 08:55:37 -0400 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2015-08-26 11:40:40 -0400 |
| commit | 131d45a96c910d0fe46597ab156a35837879bf9c (patch) | |
| tree | 0fca2751032d5ac423fae4e625eab7cce08386ec /pp_sys.c | |
| parent | 5798d63101f7b13bd5aaf5a5bf429a8e08991016 (diff) | |
| download | perl-131d45a96c910d0fe46597ab156a35837879bf9c.tar.gz | |
Explicitly use and check for FD_CLOEXEC.
This may break places which have the FD_CLOEXEC functionality
but do not have the FD_CLOEXEC define.
In any case, using a boolean for the F_SETFD flag is icky.
Using an explicit 1 is also dubious.
Diffstat (limited to 'pp_sys.c')
| -rw-r--r-- | pp_sys.c | 24 |
1 files changed, 13 insertions, 11 deletions
@@ -708,10 +708,10 @@ PP(pp_pipe_op) PerlLIO_close(fd[1]); goto badexit; } -#if defined(HAS_FCNTL) && defined(F_SETFD) +#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC) /* ensure close-on-exec */ - if ((fcntl(fd[0], F_SETFD,fd[0] > PL_maxsysfd) < 0) || - (fcntl(fd[1], F_SETFD,fd[1] > PL_maxsysfd) < 0)) + if ((fd[0] > PL_maxsysfd && fcntl(fd[0], F_SETFD, FD_CLOEXEC) < 0) || + (fd[1] > PL_maxsysfd && fcntl(fd[1], F_SETFD, FD_CLOEXEC) < 0)) goto badexit; #endif RETPUSHYES; @@ -2496,8 +2496,9 @@ PP(pp_socket) if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd); RETPUSHUNDEF; } -#if defined(HAS_FCNTL) && defined(F_SETFD) - if (fcntl(fd, F_SETFD, fd > PL_maxsysfd) < 0) /* ensure close-on-exec */ +#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC) + /* ensure close-on-exec */ + if (fd > PL_maxsysfd && fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) RETPUSHUNDEF; #endif @@ -2542,10 +2543,10 @@ PP(pp_sockpair) if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]); RETPUSHUNDEF; } -#if defined(HAS_FCNTL) && defined(F_SETFD) +#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC) /* ensure close-on-exec */ - if ((fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd) < 0) || - (fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd) < 0)) + if ((fd[0] > PL_maxsysfd && fcntl(fd[0], F_SETFD, FD_CLOEXEC) < 0) || + (fd[1] > PL_maxsysfd && fcntl(fd[1], F_SETFD, FD_CLOEXEC) < 0)) RETPUSHUNDEF; #endif @@ -2659,8 +2660,9 @@ PP(pp_accept) if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd); goto badexit; } -#if defined(HAS_FCNTL) && defined(F_SETFD) - if (fcntl(fd, F_SETFD, fd > PL_maxsysfd) < 0) /* ensure close-on-exec */ +#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC) + /* ensure close-on-exec */ + if (fd > PL_maxsysfd && fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) goto badexit; #endif @@ -4386,7 +4388,7 @@ PP(pp_system) #endif if (did_pipes) { PerlLIO_close(pp[0]); -#if defined(HAS_FCNTL) && defined(F_SETFD) +#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC) if (fcntl(pp[1], F_SETFD, FD_CLOEXEC) < 0) RETPUSHUNDEF; #endif |