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Diffstat (limited to 'src/misc/ioctl.c')
-rw-r--r--src/misc/ioctl.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/misc/ioctl.c b/src/misc/ioctl.c
index 49282811..35804f02 100644
--- a/src/misc/ioctl.c
+++ b/src/misc/ioctl.c
@@ -6,6 +6,7 @@
#include <stddef.h>
#include <stdint.h>
#include <string.h>
+#include <endian.h>
#include "syscall.h"
#define alignof(t) offsetof(struct { char c; t x; }, x)
@@ -53,7 +54,7 @@ static const struct ioctl_compat_map compat_map[] = {
{ _IOWR('A', 0x23, char[136]), _IOWR('A', 0x23, char[132]), 0, WR, 1, 0 },
{ 0, 0, 4, WR, 1, 0 }, /* snd_pcm_sync_ptr (flags only) */
{ 0, 0, 32, WR, 1, OFFS(8,12,16,24,28) }, /* snd_pcm_mmap_status */
- { 0, 0, 8, WR, 1, OFFS(0,4) }, /* snd_pcm_mmap_control */
+ { 0, 0, 4, WR, 1, 0 }, /* snd_pcm_mmap_control (each member) */
/* VIDIOC_QUERYBUF, VIDIOC_QBUF, VIDIOC_DQBUF, VIDIOC_PREPARE_BUF */
{ _IOWR('V', 9, new_misaligned(68)), _IOWR('V', 9, char[68]), 68, WR, 1, OFFS(20, 24) },
@@ -90,7 +91,11 @@ static void convert_ioctl_struct(const struct ioctl_compat_map *map, char *old,
* if another exception appears this needs changing. */
convert_ioctl_struct(map+1, old, new, dir);
convert_ioctl_struct(map+2, old+4, new+8, dir);
- convert_ioctl_struct(map+3, old+68, new+72, dir);
+ /* snd_pcm_mmap_control, special-cased due to kernel
+ * type definition having been botched. */
+ int adj = BYTE_ORDER==BIG_ENDIAN ? 4 : 0;
+ convert_ioctl_struct(map+3, old+68, new+72+adj, dir);
+ convert_ioctl_struct(map+3, old+72, new+76+3*adj, dir);
return;
}
for (int i=0; i < map->noffs; i++) {