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azbox: add O_CLOEXEC to open()

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This commit is contained in:
Stefan Seyfried
2013-09-21 15:00:16 +02:00
parent 9338fc6d1f
commit ad64d0ab4f
3 changed files with 7 additions and 12 deletions
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8
azbox/audio.cpp
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@@ -39,9 +39,8 @@ void cAudio::openDevice(void)
lt_debug("%s\n", __func__); lt_debug("%s\n", __func__);
if (fd < 0) if (fd < 0)
{ {
if ((fd = open(AUDIO_DEVICE, O_RDWR)) < 0) if ((fd = open(AUDIO_DEVICE, O_RDONLY|O_CLOEXEC)) < 0)
lt_info("openDevice: open failed (%m)\n"); lt_info("openDevice: open failed (%m)\n");
fcntl(fd, F_SETFD, FD_CLOEXEC);
do_mute(true, false); do_mute(true, false);
} }
else else
@@ -211,12 +210,11 @@ int cAudio::PrepareClipPlay(int ch, int srate, int bits, int little_endian)
} }
lt_info("%s: dsp_dev %s mix_dev %s\n", __func__, dsp_dev, mix_dev); /* NULL mix_dev is ok */ lt_info("%s: dsp_dev %s mix_dev %s\n", __func__, dsp_dev, mix_dev); /* NULL mix_dev is ok */
/* the tdoss dsp driver seems to work only on the second open(). really. */ /* the tdoss dsp driver seems to work only on the second open(). really. */
clipfd = open(dsp_dev, O_WRONLY); clipfd = open(dsp_dev, O_WRONLY|O_CLOEXEC);
if (clipfd < 0) { if (clipfd < 0) {
lt_info("%s open %s: %m\n", dsp_dev, __FUNCTION__); lt_info("%s open %s: %m\n", dsp_dev, __FUNCTION__);
return -1; return -1;
} }
fcntl(clipfd, F_SETFD, FD_CLOEXEC);
/* no idea if we ever get little_endian == 0 */ /* no idea if we ever get little_endian == 0 */
if (little_endian) if (little_endian)
fmt = AFMT_S16_BE; fmt = AFMT_S16_BE;
@@ -234,7 +232,7 @@ int cAudio::PrepareClipPlay(int ch, int srate, int bits, int little_endian)
if (!mix_dev) if (!mix_dev)
return 0; return 0;
mixer_fd = open(mix_dev, O_RDWR); mixer_fd = open(mix_dev, O_RDWR|O_CLOEXEC);
if (mixer_fd < 0) { if (mixer_fd < 0) {
lt_info("%s: open mixer %s failed (%m)\n", __func__, mix_dev); lt_info("%s: open mixer %s failed (%m)\n", __func__, mix_dev);
/* not a real error */ /* not a real error */

3
azbox/dmx.cpp
View File

@@ -114,7 +114,7 @@ cDemux::~cDemux()
bool cDemux::Open(DMX_CHANNEL_TYPE pes_type, void * /*hVideoBuffer*/, int uBufferSize) bool cDemux::Open(DMX_CHANNEL_TYPE pes_type, void * /*hVideoBuffer*/, int uBufferSize)
{ {
int devnum = num; int devnum = num;
int flags = O_RDWR; int flags = O_RDWR|O_CLOEXEC;
if (fd > -1) if (fd > -1)
lt_info("%s FD ALREADY OPENED? fd = %d\n", __FUNCTION__, fd); lt_info("%s FD ALREADY OPENED? fd = %d\n", __FUNCTION__, fd);
@@ -127,7 +127,6 @@ bool cDemux::Open(DMX_CHANNEL_TYPE pes_type, void * /*hVideoBuffer*/, int uBuffe
lt_info("%s %s: %m\n", __FUNCTION__, devname[devnum]); lt_info("%s %s: %m\n", __FUNCTION__, devname[devnum]);
return false; return false;
} }
fcntl(fd, F_SETFD, FD_CLOEXEC);
lt_debug("%s #%d pes_type: %s(%d), uBufferSize: %d fd: %d\n", __func__, lt_debug("%s #%d pes_type: %s(%d), uBufferSize: %d fd: %d\n", __func__,
num, DMX_T[pes_type], pes_type, uBufferSize, fd); num, DMX_T[pes_type], pes_type, uBufferSize, fd);

8
azbox/video.cpp
View File

@@ -90,7 +90,7 @@ cVideo::cVideo(int, void *, void *)
blank_data = NULL; /* initialize */ blank_data = NULL; /* initialize */
blank_size = 0; blank_size = 0;
blankfd = open(blankname, O_RDONLY); blankfd = open(blankname, O_RDONLY|O_CLOEXEC);
if (blankfd < 0) if (blankfd < 0)
lt_info("%s cannot open %s: %m", __func__, blankname); lt_info("%s cannot open %s: %m", __func__, blankname);
else else
@@ -129,7 +129,7 @@ void cVideo::openDevice(void)
if (fd != -1) /* already open */ if (fd != -1) /* already open */
return; return;
retry: retry:
if ((fd = open(VIDEO_DEVICE, O_RDWR)) < 0) if ((fd = open(VIDEO_DEVICE, O_RDWR|O_CLOEXEC)) < 0)
{ {
if (errno == EBUSY) if (errno == EBUSY)
{ {
@@ -140,8 +140,6 @@ retry:
} }
lt_info("%s cannot open %s: %m, retries %d\n", __func__, VIDEO_DEVICE, n); lt_info("%s cannot open %s: %m, retries %d\n", __func__, VIDEO_DEVICE, n);
} }
else
fcntl(fd, F_SETFD, FD_CLOEXEC);
playstate = VIDEO_STOPPED; playstate = VIDEO_STOPPED;
} }
@@ -387,7 +385,7 @@ void cVideo::ShowPicture(const char * fname)
what we want. the mutex ensures proper ordering. */ what we want. the mutex ensures proper ordering. */
pthread_mutex_lock(&stillp_mutex); pthread_mutex_lock(&stillp_mutex);
mfd = open(destname, O_RDONLY); mfd = open(destname, O_RDONLY|O_CLOEXEC);
if (mfd < 0) if (mfd < 0)
{ {
lt_info("%s cannot open %s: %m", __func__, destname); lt_info("%s cannot open %s: %m", __func__, destname);