1 /* 2 * Copyright 2012, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <portability.h> 18 #include <unistd.h> 19 #include <fcntl.h> 20 #include <stdarg.h> 21 #include <portability.h> 22 #include <fcntl_portable.h> 23 #include <filefd_portable.h> 24 25 #define PORTABLE_TAG "open_portable" 26 #include <log_portable.h> 27 28 29 #if O_CREAT_PORTABLE==O_CREAT 30 #error Bad build environment 31 #endif 32 33 34 static inline int open_flags_pton(int flags) 35 { 36 int mipsflags = flags & O_ACCMODE_PORTABLE; 37 38 ALOGV("%s(flags:0x%x) {", __func__, flags); 39 40 if (flags & O_CREAT_PORTABLE) 41 mipsflags |= O_CREAT; 42 if (flags & O_EXCL_PORTABLE) 43 mipsflags |= O_EXCL; 44 if (flags & O_NOCTTY_PORTABLE) 45 mipsflags |= O_NOCTTY; 46 if (flags & O_TRUNC_PORTABLE) 47 mipsflags |= O_TRUNC; 48 if (flags & O_APPEND_PORTABLE) 49 mipsflags |= O_APPEND; 50 if (flags & O_NONBLOCK_PORTABLE) 51 mipsflags |= O_NONBLOCK; 52 if (flags & O_SYNC_PORTABLE) 53 mipsflags |= O_SYNC; 54 if (flags & FASYNC_PORTABLE) 55 mipsflags |= FASYNC; 56 if (flags & O_DIRECT_PORTABLE) 57 mipsflags |= O_DIRECT; 58 if (flags & O_LARGEFILE_PORTABLE) 59 mipsflags |= O_LARGEFILE; 60 if (flags & O_DIRECTORY_PORTABLE) 61 mipsflags |= O_DIRECTORY; 62 if (flags & O_NOFOLLOW_PORTABLE) 63 mipsflags |= O_NOFOLLOW; 64 if (flags & O_NOATIME_PORTABLE) 65 mipsflags |= O_NOATIME; 66 if (flags & O_NDELAY_PORTABLE) 67 mipsflags |= O_NDELAY; 68 69 ALOGV("%s: return(mipsflags:0x%x); }", __func__, mipsflags); 70 return mipsflags; 71 } 72 73 74 extern int __open(const char*, int, int); 75 76 int WRAP(open)(const char *pathname, int flags, ...) 77 { 78 mode_t mode = 0; 79 int native_flags; 80 int fd; 81 82 ALOGV(" "); 83 ALOGV("%s(pathname:%p, flags:0x%x, ...) {", __func__, 84 pathname, flags); 85 86 flags |= O_LARGEFILE_PORTABLE; 87 88 if (flags & O_CREAT_PORTABLE) { 89 va_list args; 90 91 va_start(args, flags); 92 mode = (mode_t) va_arg(args, int); 93 va_end(args); 94 } 95 96 native_flags = open_flags_pton(flags); 97 98 fd = __open(pathname, native_flags, mode); 99 if (fd == -1) { 100 /* Can't print pathname as a string, might be bogus */ 101 ALOGV("%s: fd = %d = __open(pathname:%p, native_flags:0x%x, mode:0x%x);", __func__, 102 fd, pathname, native_flags, mode); 103 } else { 104 if (flags & O_CLOEXEC) { 105 filefd_CLOEXEC_enabled(fd); 106 } else { 107 filefd_CLOEXEC_disabled(fd); 108 } 109 } 110 ALOGV("%s: return(fd:%d); }", __func__, fd); 111 return fd; 112 } 113 114 115 extern int __openat(int, const char*, int, int); 116 117 int WRAP(openat)(int dirfd, const char *pathname, int flags, ...) 118 { 119 mode_t mode = 0; 120 int native_flags; 121 int fd; 122 123 ALOGV(" "); 124 ALOGV("%s(dirfd:%d, pathname:0x%p, flags:0x%x, ...) {", __func__, 125 dirfd, pathname, flags); 126 127 flags |= O_LARGEFILE_PORTABLE; 128 129 if (flags & O_CREAT_PORTABLE) { 130 va_list args; 131 132 va_start(args, flags); 133 mode = (mode_t) va_arg(args, int); 134 va_end(args); 135 } 136 137 native_flags = open_flags_pton(flags); 138 139 fd = __openat(dirfd, pathname, native_flags, mode); 140 141 if (fd == -1) { 142 ALOGV("%s: fd = %d = __open(pathname:0x%p, native_flags:0x%x, mode:0x%d);", __func__, 143 fd, pathname, native_flags, mode); 144 } else { 145 if (flags & O_CLOEXEC) { 146 filefd_CLOEXEC_enabled(fd); 147 } else { 148 filefd_CLOEXEC_disabled(fd); 149 } 150 } 151 ALOGV("%s: return(fd:%d); }", __func__, fd); 152 return fd; 153 } 154
