1 /* 2 * Copyright 2002-2009, Axel Dörfler, axeld@pinc-software.de. 3 * Distributed under the terms of the MIT License. 4 * 5 * Copyright 2001, Manuel J. Petit. All rights reserved. 6 * Distributed under the terms of the NewOS License. 7 */ 8 9 10 #include <errno.h> 11 #include <fcntl.h> 12 #include <pthread.h> 13 #include <stdarg.h> 14 #include <unistd.h> 15 16 #include <errno_private.h> 17 #include <syscalls.h> 18 #include <syscall_utils.h> 19 #include <umask.h> 20 21 22 int 23 creat(const char *path, mode_t mode) 24 { 25 RETURN_AND_SET_ERRNO_TEST_CANCEL( 26 _kern_open(-1, path, O_CREAT | O_TRUNC | O_WRONLY, mode & ~__gUmask)); 27 // adapt the permissions as required by POSIX 28 } 29 30 31 int 32 open(const char *path, int openMode, ...) 33 { 34 int perms = 0; 35 if (openMode & O_CREAT) { 36 va_list args; 37 va_start(args, openMode); 38 perms = va_arg(args, int) & ~__gUmask; 39 // adapt the permissions as required by POSIX 40 va_end(args); 41 } 42 43 RETURN_AND_SET_ERRNO_TEST_CANCEL(_kern_open(-1, path, openMode, perms)); 44 } 45 46 47 int 48 openat(int fd, const char *path, int openMode, ...) 49 { 50 int perms = 0; 51 if (openMode & O_CREAT) { 52 va_list args; 53 va_start(args, openMode); 54 perms = va_arg(args, int) & ~__gUmask; 55 // adapt the permissions as required by POSIX 56 va_end(args); 57 } 58 59 RETURN_AND_SET_ERRNO_TEST_CANCEL(_kern_open(fd, path, openMode, perms)); 60 } 61 62 63 int 64 fcntl(int fd, int op, ...) 65 { 66 va_list args; 67 va_start(args, op); 68 size_t argument = va_arg(args, size_t); 69 va_end(args); 70 71 status_t error = _kern_fcntl(fd, op, argument); 72 73 if (op == F_SETLKW) 74 pthread_testcancel(); 75 76 RETURN_AND_SET_ERRNO(error); 77 } 78 79 80 int 81 posix_fadvise(int fd, off_t offset, off_t len, int advice) 82 { 83 if (len < 0 || offset < 0 || advice < POSIX_FADV_NORMAL 84 || advice > POSIX_FADV_NOREUSE) { 85 return EINVAL; 86 } 87 88 struct stat stat; 89 if (fstat(fd, &stat) < 0) 90 return EBADF; 91 if (S_ISFIFO(stat.st_mode)) 92 return ESPIPE; 93 94 // Haiku does not use this information. 95 return 0; 96 } 97 98 99 int 100 posix_fallocate(int fd, off_t offset, off_t len) 101 { 102 if (len == 0 || offset < 0) 103 return EINVAL; 104 105 return _kern_preallocate(fd, offset, len); 106 } 107