44 lines
1.7 KiB
Diff
44 lines
1.7 KiB
Diff
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diff -ruN libv4l-0.6.0.orig/libv4lconvert/control/libv4lcontrol.c libv4l-0.6.0/libv4lconvert/control/libv4lcontrol.c
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--- libv4l-0.6.0.orig/libv4lconvert/control/libv4lcontrol.c 2009-07-09 04:59:01.000000000 -0400
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+++ libv4l-0.6.0/libv4lconvert/control/libv4lcontrol.c 2009-08-29 03:23:06.000000000 -0400
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@@ -265,7 +265,7 @@
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struct v4lcontrol_data *v4lcontrol_create(int fd, int always_needs_conversion)
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{
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- int shm_fd;
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+ int shm_fd, fdflags;
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int i, rc, init = 0;
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char *s, shm_name[256];
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struct v4l2_capability cap;
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@@ -311,19 +311,26 @@
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return data; /* No need to create a shared memory segment */
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SYS_IOCTL(fd, VIDIOC_QUERYCAP, &cap);
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- snprintf(shm_name, 256, "/%s:%s", cap.bus_info, cap.card);
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+ snprintf(shm_name, 256, "/dev/shm/%s:%s", cap.bus_info, cap.card);
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/* / is not allowed inside shm names */
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- for (i = 1; shm_name[i]; i++)
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+ for (i = 9; shm_name[i]; i++) //start after "/dev/shm", i = 9
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if (shm_name[i] == '/')
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shm_name[i] = '-';
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/* Open the shared memory object identified by shm_name */
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- if ((shm_fd = shm_open(shm_name, (O_CREAT | O_EXCL | O_RDWR),
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+ if ((shm_fd = open(shm_name, (O_CREAT | O_EXCL | O_RDWR),
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(S_IREAD | S_IWRITE))) >= 0)
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init = 1;
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- else if ((shm_fd = shm_open(shm_name, O_RDWR, (S_IREAD | S_IWRITE))) < 0)
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+ else if ((shm_fd = open(shm_name, O_RDWR, (S_IREAD | S_IWRITE))) < 0)
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goto error;
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+
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+ /* This is all uClibc > 0.9.30 seems to do for shm_open() in librt/shm.c */
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+ fdflags = fcntl(shm_fd, F_GETFD, 0);
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+
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+ if (fdflags >= 0) {
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+ fdflags = fcntl(fd, F_SETFD, fdflags | FD_CLOEXEC);
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+ }
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/* Set the shared memory size */
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ftruncate(shm_fd, V4LCONTROL_SHM_SIZE);
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