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Diffstat (limited to 'include/mach/sa/errno.h')
| -rw-r--r-- | include/mach/sa/errno.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/mach/sa/errno.h b/include/mach/sa/errno.h new file mode 100644 index 0000000..1e8be23 --- /dev/null +++ b/include/mach/sa/errno.h @@ -0,0 +1,98 @@ +/* + * Copyright (c) 1995 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Author: Bryan Ford, University of Utah CSL + */ +/* + * This header file defines a set of POSIX errno values + * that fits consistently into the Mach error code "space" - + * i.e. these error code values can be mixed with kern_return_t's + * and mach_msg_return_t's and such without conflict. + * Higher-level services are not required to use these values + * (or, for that matter, any of the mach/sa header files), + * but if they use other values of their own choosing, + * those values may conflict with values in the Mach error code space, + * making it necessary to keep the different types of error codes separate. + * + * (For example, Lites uses BSD's errno values, + * which conflict with Mach's kern_return_t values, + * and therefore must carefully distinguish between BSD and Mach error codes + * and never return one type when the other is expected, etc. - + * we've found this to be a frequent source of bugs.) + * + * One (probably the main) disadvantage of using these error codes + * is that, since they don't start from around 0 like typical Unix errno values, + * it's impossible to provide a conventional Unix-style sys_errlist table for them. + * However, they are compatible with the POSIX-blessed strerror and perror routines. + */ +#ifndef _MACH_SA_ERRNO_H_ +#define _MACH_SA_ERRNO_H_ + +extern int errno; /* global error number */ + +/* ISO/ANSI C-1990 errors */ +#define EDOM 0xc001 /* Numerical argument out of domain */ +#define ERANGE 0xc002 /* Result too large */ + +/* POSIX-1990 errors */ +#define E2BIG 0xc003 /* Argument list too long */ +#define EACCES 0xc004 /* Permission denied */ +#define EAGAIN 0xc005 /* Resource temporarily unavailable */ +#define EBADF 0xc006 /* Bad file descriptor */ +#define EBUSY 0xc007 /* Device busy */ +#define ECHILD 0xc008 /* No child processes */ +#define EDEADLK 0xc009 /* Resource deadlock avoided */ +#define EEXIST 0xc00a /* File exists */ +#define EFAULT 0xc00b /* Bad address */ +#define EFBIG 0xc00c /* File too large */ +#define EINTR 0xc00d /* Interrupted system call */ +#define EINVAL 0xc00e /* Invalid argument */ +#define EIO 0xc00f /* Input/output error */ +#define EISDIR 0xc010 /* Is a directory */ +#define EMFILE 0xc011 /* Too many open files */ +#define EMLINK 0xc012 /* Too many links */ +#define ENAMETOOLONG 0xc013 /* File name too long */ +#define ENFILE 0xc014 /* Too many open files in system */ +#define ENODEV 0xc015 /* Operation not supported by device */ +#define ENOENT 0xc016 /* No such file or directory */ +#define ENOEXEC 0xc017 /* Exec format error */ +#define ENOLCK 0xc018 /* No locks available */ +#define ENOMEM 0xc019 /* Cannot allocate memory */ +#define ENOSPC 0xc01a /* No space left on device */ +#define ENOSYS 0xc01b /* Function not implemented */ +#define ENOTDIR 0xc01c /* Not a directory */ +#define ENOTEMPTY 0xc01d /* Directory not empty */ +#define ENOTTY 0xc01e /* Inappropriate ioctl for device */ +#define ENXIO 0xc01f /* Device not configured */ +#define EPERM 0xc020 /* Operation not permitted */ +#define EPIPE 0xc021 /* Broken pipe */ +#define EROFS 0xc022 /* Read-only file system */ +#define ESPIPE 0xc023 /* Illegal seek */ +#define ESRCH 0xc024 /* No such process */ +#define EXDEV 0xc025 /* Cross-device link */ + +/* POSIX-1993 errors */ +#define EBADMSG 0xc026 +#define ECANCELED 0xc027 +#define EINPROGRESS 0xc028 +#define EMSGSIZE 0xc029 +#define ENOTSUP 0xc02a + +#endif _MACH_SA_ERRNO_H_ |