/* * Copyright 2012, The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include #include #include #define PORTABLE_TAG "open_portable" #include #if O_CREAT_PORTABLE==O_CREAT #error Bad build environment #endif static inline int open_flags_pton(int flags) { int mipsflags = flags & O_ACCMODE_PORTABLE; ALOGV("%s(flags:0x%x) {", __func__, flags); if (flags & O_CREAT_PORTABLE) mipsflags |= O_CREAT; if (flags & O_EXCL_PORTABLE) mipsflags |= O_EXCL; if (flags & O_NOCTTY_PORTABLE) mipsflags |= O_NOCTTY; if (flags & O_TRUNC_PORTABLE) mipsflags |= O_TRUNC; if (flags & O_APPEND_PORTABLE) mipsflags |= O_APPEND; if (flags & O_NONBLOCK_PORTABLE) mipsflags |= O_NONBLOCK; if (flags & O_SYNC_PORTABLE) mipsflags |= O_SYNC; if (flags & FASYNC_PORTABLE) mipsflags |= FASYNC; if (flags & O_DIRECT_PORTABLE) mipsflags |= O_DIRECT; if (flags & O_LARGEFILE_PORTABLE) mipsflags |= O_LARGEFILE; if (flags & O_DIRECTORY_PORTABLE) mipsflags |= O_DIRECTORY; if (flags & O_NOFOLLOW_PORTABLE) mipsflags |= O_NOFOLLOW; if (flags & O_NOATIME_PORTABLE) mipsflags |= O_NOATIME; if (flags & O_NDELAY_PORTABLE) mipsflags |= O_NDELAY; ALOGV("%s: return(mipsflags:0x%x); }", __func__, mipsflags); return mipsflags; } extern int __open(const char*, int, int); int WRAP(open)(const char *pathname, int flags, ...) { mode_t mode = 0; int native_flags; int fd; ALOGV(" "); ALOGV("%s(pathname:%p, flags:0x%x, ...) {", __func__, pathname, flags); flags |= O_LARGEFILE_PORTABLE; if (flags & O_CREAT_PORTABLE) { va_list args; va_start(args, flags); mode = (mode_t) va_arg(args, int); va_end(args); } native_flags = open_flags_pton(flags); fd = __open(pathname, native_flags, mode); if (fd == -1) { /* Can't print pathname as a string, might be bogus */ ALOGV("%s: fd = %d = __open(pathname:%p, native_flags:0x%x, mode:0x%x);", __func__, fd, pathname, native_flags, mode); } else { if (flags & O_CLOEXEC) { filefd_CLOEXEC_enabled(fd); } else { filefd_CLOEXEC_disabled(fd); } } ALOGV("%s: return(fd:%d); }", __func__, fd); return fd; } extern int __openat(int, const char*, int, int); int WRAP(openat)(int dirfd, const char *pathname, int flags, ...) { mode_t mode = 0; int native_flags; int fd; ALOGV(" "); ALOGV("%s(dirfd:%d, pathname:0x%p, flags:0x%x, ...) {", __func__, dirfd, pathname, flags); flags |= O_LARGEFILE_PORTABLE; if (flags & O_CREAT_PORTABLE) { va_list args; va_start(args, flags); mode = (mode_t) va_arg(args, int); va_end(args); } native_flags = open_flags_pton(flags); fd = __openat(dirfd, pathname, native_flags, mode); if (fd == -1) { ALOGV("%s: fd = %d = __open(pathname:0x%p, native_flags:0x%x, mode:0x%d);", __func__, fd, pathname, native_flags, mode); } else { if (flags & O_CLOEXEC) { filefd_CLOEXEC_enabled(fd); } else { filefd_CLOEXEC_disabled(fd); } } ALOGV("%s: return(fd:%d); }", __func__, fd); return fd; }