| 1 | /* $NetBSD: error.h,v 1.16 2003/08/07 09:05:30 agc Exp $ */
|
|---|
| 2 |
|
|---|
| 3 | /*-
|
|---|
| 4 | * Copyright (c) 1991, 1993
|
|---|
| 5 | * The Regents of the University of California. All rights reserved.
|
|---|
| 6 | *
|
|---|
| 7 | * This code is derived from software contributed to Berkeley by
|
|---|
| 8 | * Kenneth Almquist.
|
|---|
| 9 | *
|
|---|
| 10 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 11 | * modification, are permitted provided that the following conditions
|
|---|
| 12 | * are met:
|
|---|
| 13 | * 1. Redistributions of source code must retain the above copyright
|
|---|
| 14 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 15 | * 2. Redistributions in binary form must reproduce the above copyright
|
|---|
| 16 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 17 | * documentation and/or other materials provided with the distribution.
|
|---|
| 18 | * 3. Neither the name of the University nor the names of its contributors
|
|---|
| 19 | * may be used to endorse or promote products derived from this software
|
|---|
| 20 | * without specific prior written permission.
|
|---|
| 21 | *
|
|---|
| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|---|
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|---|
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|---|
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|---|
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|---|
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|---|
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|---|
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|---|
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|---|
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|---|
| 32 | * SUCH DAMAGE.
|
|---|
| 33 | *
|
|---|
| 34 | * @(#)error.h 8.2 (Berkeley) 5/4/95
|
|---|
| 35 | */
|
|---|
| 36 |
|
|---|
| 37 | #include <stdarg.h>
|
|---|
| 38 |
|
|---|
| 39 | /*
|
|---|
| 40 | * Types of operations (passed to the errmsg routine).
|
|---|
| 41 | */
|
|---|
| 42 |
|
|---|
| 43 | #define E_OPEN 01 /* opening a file */
|
|---|
| 44 | #define E_CREAT 02 /* creating a file */
|
|---|
| 45 | #define E_EXEC 04 /* executing a program */
|
|---|
| 46 |
|
|---|
| 47 |
|
|---|
| 48 | /*
|
|---|
| 49 | * We enclose jmp_buf in a structure so that we can declare pointers to
|
|---|
| 50 | * jump locations. The global variable handler contains the location to
|
|---|
| 51 | * jump to when an exception occurs, and the global variable exception
|
|---|
| 52 | * contains a code identifying the exeception. To implement nested
|
|---|
| 53 | * exception handlers, the user should save the value of handler on entry
|
|---|
| 54 | * to an inner scope, set handler to point to a jmploc structure for the
|
|---|
| 55 | * inner scope, and restore handler on exit from the scope.
|
|---|
| 56 | */
|
|---|
| 57 |
|
|---|
| 58 | #include <setjmp.h>
|
|---|
| 59 |
|
|---|
| 60 | struct jmploc {
|
|---|
| 61 | jmp_buf loc;
|
|---|
| 62 | };
|
|---|
| 63 |
|
|---|
| 64 | /*
|
|---|
| 65 | extern struct jmploc *handler;
|
|---|
| 66 | extern int exception;
|
|---|
| 67 | extern int exerrno;*/ /* error for EXEXEC */
|
|---|
| 68 |
|
|---|
| 69 | /* exceptions */
|
|---|
| 70 | #define EXINT 0 /* SIGINT received */
|
|---|
| 71 | #define EXERROR 1 /* a generic error */
|
|---|
| 72 | #define EXSHELLPROC 2 /* execute a shell procedure */
|
|---|
| 73 | #define EXEXEC 3 /* command execution failed */
|
|---|
| 74 |
|
|---|
| 75 |
|
|---|
| 76 | /*
|
|---|
| 77 | * These macros allow the user to suspend the handling of interrupt signals
|
|---|
| 78 | * over a period of time. This is similar to SIGHOLD to or sigblock, but
|
|---|
| 79 | * much more efficient and portable. (But hacking the kernel is so much
|
|---|
| 80 | * more fun than worrying about efficiency and portability. :-))
|
|---|
| 81 | */
|
|---|
| 82 |
|
|---|
| 83 | /*extern volatile int suppressint;
|
|---|
| 84 | extern volatile int intpending;*/
|
|---|
| 85 |
|
|---|
| 86 | #define INTOFF psh->suppressint++
|
|---|
| 87 | #define INTON { if (--psh->suppressint == 0 && psh->intpending) onint(psh); }
|
|---|
| 88 | #define FORCEINTON {psh->suppressint = 0; if (psh->intpending) onint(psh);}
|
|---|
| 89 | #define CLEAR_PENDING_INT psh->intpending = 0
|
|---|
| 90 | #define int_pending() psh->intpending
|
|---|
| 91 |
|
|---|
| 92 | void exraise(struct shinstance *, int) __attribute__((__noreturn__));
|
|---|
| 93 | void onint(struct shinstance *);
|
|---|
| 94 | void error(struct shinstance *, const char *, ...) __attribute__((__noreturn__));
|
|---|
| 95 | void exerror(struct shinstance *, int, const char *, ...) __attribute__((__noreturn__));
|
|---|
| 96 | const char *errmsg(struct shinstance *, int, int);
|
|---|
| 97 |
|
|---|
| 98 | void sh_err(struct shinstance *, int, const char *, ...) __attribute__((__noreturn__));
|
|---|
| 99 | void sh_verr(struct shinstance *, int, const char *, va_list) __attribute__((__noreturn__));
|
|---|
| 100 | void sh_errx(struct shinstance *, int, const char *, ...) __attribute__((__noreturn__));
|
|---|
| 101 | void sh_verrx(struct shinstance *, int, const char *, va_list) __attribute__((__noreturn__));
|
|---|
| 102 | void sh_warn(struct shinstance *, const char *, ...);
|
|---|
| 103 | void sh_vwarn(struct shinstance *, const char *, va_list);
|
|---|
| 104 | void sh_warnx(struct shinstance *, const char *, ...);
|
|---|
| 105 | void sh_vwarnx(struct shinstance *, const char *, va_list);
|
|---|
| 106 |
|
|---|
| 107 | void sh_exit(struct shinstance *, int) __attribute__((__noreturn__));
|
|---|
| 108 |
|
|---|
| 109 |
|
|---|
| 110 | /*
|
|---|
| 111 | * BSD setjmp saves the signal mask, which violates ANSI C and takes time,
|
|---|
| 112 | * so we use _setjmp instead.
|
|---|
| 113 | */
|
|---|
| 114 |
|
|---|
| 115 | #if defined(BSD) && !defined(__SVR4) && !defined(__GLIBC__) && !defined(__KLIBC__) && !defined(_MSC_VER)
|
|---|
| 116 | #define setjmp(jmploc) _setjmp(jmploc)
|
|---|
| 117 | #define longjmp(jmploc, val) _longjmp(jmploc, val)
|
|---|
| 118 | #endif
|
|---|
