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Diffstat (limited to 'lib/mlibc/options/posix/generic/fcntl-stubs.cpp')
-rw-r--r--lib/mlibc/options/posix/generic/fcntl-stubs.cpp108
1 files changed, 108 insertions, 0 deletions
diff --git a/lib/mlibc/options/posix/generic/fcntl-stubs.cpp b/lib/mlibc/options/posix/generic/fcntl-stubs.cpp
new file mode 100644
index 0000000..66e2d12
--- /dev/null
+++ b/lib/mlibc/options/posix/generic/fcntl-stubs.cpp
@@ -0,0 +1,108 @@
+
+#include <errno.h>
+#include <bits/ensure.h>
+#include <fcntl.h>
+#include <stdarg.h>
+
+#include <mlibc/debug.hpp>
+#include <mlibc/posix-sysdeps.hpp>
+
+int creat(const char *pathname, mode_t mode) {
+ return open(pathname, O_CREAT|O_WRONLY|O_TRUNC, mode);
+}
+
+int fallocate(int, int, off_t, off_t) {
+ mlibc::infoLogger() << "mlibc: fallocate() is a no-op" << frg::endlog;
+ errno = ENOSYS;
+ return -1;
+}
+
+int fcntl(int fd, int command, ...) {
+ va_list args;
+ va_start(args, command);
+ int result;
+ MLIBC_CHECK_OR_ENOSYS(mlibc::sys_fcntl, -1);
+ if(int e = mlibc::sys_fcntl(fd, command, args, &result); e) {
+ errno = e;
+ return -1;
+ }
+ va_end(args);
+ return result;
+}
+
+int openat(int dirfd, const char *pathname, int flags, ...) {
+ va_list args;
+ va_start(args, flags);
+ mode_t mode = 0;
+ int fd;
+
+ if((flags & (O_CREAT | O_TMPFILE)))
+ mode = va_arg(args, mode_t);
+
+ MLIBC_CHECK_OR_ENOSYS(mlibc::sys_openat, -1);
+ if(int e = mlibc::sys_openat(dirfd, pathname, flags, mode, &fd); e) {
+ errno = e;
+ return -1;
+ }
+ va_end(args);
+ return fd;
+}
+
+int posix_fadvise(int fd, off_t offset, off_t length, int advice) {
+ if(!mlibc::sys_fadvise) {
+ mlibc::infoLogger() << "mlibc: fadvise() ignored due to missing sysdep" << frg::endlog;
+ return 0;
+ }
+
+ // posix_fadvise() returns an error instead of setting errno.
+ return mlibc::sys_fadvise(fd, offset, length, advice);
+}
+
+int posix_fallocate(int fd, off_t offset, off_t size) {
+ // posix_fallocate() returns an error instead of setting errno.
+ if(!mlibc::sys_fallocate) {
+ MLIBC_MISSING_SYSDEP();
+ return ENOSYS;
+ }
+ return mlibc::sys_fallocate(fd, offset, size);
+}
+
+// This is a linux extension
+int name_to_handle_at(int, const char *, struct file_handle *, int *, int) {
+ __ensure(!"Not implemented");
+ __builtin_unreachable();
+}
+
+int open_by_handle_at(int, struct file_handle *, int) {
+ __ensure(!"Not implemented");
+ __builtin_unreachable();
+}
+
+ssize_t splice(int, off_t *, int, off_t *, size_t, unsigned int) {
+ __ensure(!"Not implemented");
+ __builtin_unreachable();
+}
+
+ssize_t vmsplice(int, const struct iovec *, size_t, unsigned int) {
+ __ensure(!"Not implemented");
+ __builtin_unreachable();
+}
+
+int open(const char *pathname, int flags, ...) {
+ mode_t mode = 0;
+
+ if ((flags & O_CREAT) || (flags & O_TMPFILE)) {
+ va_list args;
+ va_start(args, flags);
+ mode = va_arg(args, mode_t);
+ va_end(args);
+ }
+
+ int fd;
+ if(int e = mlibc::sys_open(pathname, flags, mode, &fd); e) {
+ errno = e;
+ return -1;
+ }
+ return fd;
+}
+