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authorThomas Bushnell <thomas@gnu.org>1997-02-25 21:28:37 +0000
committerThomas Bushnell <thomas@gnu.org>1997-02-25 21:28:37 +0000
commitf07a4c844da9f0ecae5bbee1ab94be56505f26f7 (patch)
tree12b07c7e578fc1a5f53dbfde2632408491ff2a70 /include/mach/sa/errno.h
Initial source
Diffstat (limited to 'include/mach/sa/errno.h')
-rw-r--r--include/mach/sa/errno.h98
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diff --git a/include/mach/sa/errno.h b/include/mach/sa/errno.h
new file mode 100644
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+++ b/include/mach/sa/errno.h
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+/*
+ * 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_