From 7a46c07230b8d8108c0e8e80df4522d0ac116538 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:28:17 +0200 Subject: Adding upstream version 0.3.65. Signed-off-by: Daniel Baumann --- pipewire-v4l2/src/v4l2-func.c | 150 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 pipewire-v4l2/src/v4l2-func.c (limited to 'pipewire-v4l2/src/v4l2-func.c') diff --git a/pipewire-v4l2/src/v4l2-func.c b/pipewire-v4l2/src/v4l2-func.c new file mode 100644 index 0000000..c28e834 --- /dev/null +++ b/pipewire-v4l2/src/v4l2-func.c @@ -0,0 +1,150 @@ +/* PipeWire + * + * Copyright © 2021 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + + +/* + * We need to export open* etc., but _FORTIFY_SOURCE defines conflicting + * always_inline versions. Disable _FORTIFY_SOURCE for this file, so we + * can define our overrides. + */ +#ifdef _FORTIFY_SOURCE +#undef _FORTIFY_SOURCE +#endif + +#include +#include +#include +#include +#include +#include +#include + +#include "pipewire-v4l2.h" + +#define SPA_EXPORT __attribute__((visibility("default"))) + +#define extract_va_arg(type, arg, last) \ +{ \ + va_list ap; \ + va_start(ap, last); \ + arg = va_arg(ap, type); \ + va_end(ap); \ +} + +SPA_EXPORT int open(const char *path, int oflag, ...) +{ + mode_t mode = 0; + if (oflag & O_CREAT || oflag & O_TMPFILE) + extract_va_arg(mode_t, mode, oflag); + + return get_fops()->openat(AT_FDCWD, path, oflag, mode); +} + +/* _FORTIFY_SOURCE redirects open to __open_2 */ +SPA_EXPORT int __open_2(const char *path, int oflag) +{ + return open(path, oflag); +} + +#ifndef open64 +SPA_EXPORT int open64(const char *path, int oflag, ...) +{ + mode_t mode = 0; + if (oflag & O_CREAT || oflag & O_TMPFILE) + extract_va_arg(mode_t, mode, oflag); + + return get_fops()->openat(AT_FDCWD, path, oflag | O_LARGEFILE, mode); +} + +SPA_EXPORT int __open64_2(const char *path, int oflag) +{ + return open(path, oflag); +} +#endif + +SPA_EXPORT int openat(int dirfd, const char *path, int oflag, ...) +{ + mode_t mode = 0; + if (oflag & O_CREAT || oflag & O_TMPFILE) + extract_va_arg(mode_t, mode, oflag); + + return get_fops()->openat(dirfd, path, oflag, mode); +} + +SPA_EXPORT int __openat_2(int dirfd, const char *path, int oflag) +{ + return openat(dirfd, path, oflag); +} + +#ifndef openat64 +SPA_EXPORT int openat64(int dirfd, const char *path, int oflag, ...) +{ + mode_t mode = 0; + if (oflag & O_CREAT || oflag & O_TMPFILE) + extract_va_arg(mode_t, mode, oflag); + + return get_fops()->openat(dirfd, path, oflag | O_LARGEFILE, mode); +} + +SPA_EXPORT int __openat64_2(int dirfd, const char *path, int oflag) +{ + return openat(dirfd, path, oflag); +} +#endif + +SPA_EXPORT int dup(int oldfd) +{ + return get_fops()->dup(oldfd); +} + +SPA_EXPORT int close(int fd) +{ + return get_fops()->close(fd); +} + +SPA_EXPORT void *mmap(void *addr, size_t length, int prot, int flags, + int fd, off_t offset) +{ + return get_fops()->mmap(addr, length, prot, flags, fd, offset); +} + +#ifndef mmap64 +SPA_EXPORT void *mmap64(void *addr, size_t length, int prot, int flags, + int fd, off64_t offset) +{ + return get_fops()->mmap(addr, length, prot, flags, fd, offset); +} +#endif + +SPA_EXPORT int munmap(void *addr, size_t length) +{ + return get_fops()->munmap(addr, length); +} + +SPA_EXPORT int ioctl(int fd, unsigned long int request, ...) +{ + void *arg; + extract_va_arg(void *, arg, request); + return get_fops()->ioctl(fd, request, arg); +} -- cgit v1.2.3