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Diffstat (limited to 'src/kash/error.h')
| -rw-r--r-- | src/kash/error.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/kash/error.h b/src/kash/error.h new file mode 100644 index 0000000..6388a75 --- /dev/null +++ b/src/kash/error.h @@ -0,0 +1,133 @@ +/* $NetBSD: error.h,v 1.16 2003/08/07 09:05:30 agc Exp $ */ + +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)error.h 8.2 (Berkeley) 5/4/95 + */ + +#ifndef ___error_h +#define ___error_h + +#include "shtypes.h" +#include <stdarg.h> + +/* + * Types of operations (passed to the errmsg routine). + */ + +#define E_OPEN 01 /* opening a file */ +#define E_CREAT 02 /* creating a file */ +#define E_EXEC 04 /* executing a program */ + + +/* + * We enclose jmp_buf in a structure so that we can declare pointers to + * jump locations. The global variable handler contains the location to + * jump to when an exception occurs, and the global variable exception + * contains a code identifying the exeception. To implement nested + * exception handlers, the user should save the value of handler on entry + * to an inner scope, set handler to point to a jmploc structure for the + * inner scope, and restore handler on exit from the scope. + */ + +#ifndef __HAIKU__ +# include <setjmp.h> +#else +# include <posix/setjmp.h> /** @todo silly */ +#endif + +struct jmploc { + jmp_buf loc; +}; + +/* +extern struct jmploc *handler; +extern int exception; +extern int exerrno;*/ /* error for EXEXEC */ + +/* exceptions */ +#define EXINT 0 /* SIGINT received */ +#define EXERROR 1 /* a generic error */ +#define EXSHELLPROC 2 /* execute a shell procedure */ +#define EXEXEC 3 /* command execution failed */ + + +/* + * These macros allow the user to suspend the handling of interrupt signals + * over a period of time. This is similar to SIGHOLD to or sigblock, but + * much more efficient and portable. (But hacking the kernel is so much + * more fun than worrying about efficiency and portability. :-)) + */ + +/*extern volatile int suppressint; +extern volatile int intpending;*/ + +#define INTOFF psh->suppressint++ +#define INTON { if (--psh->suppressint == 0 && psh->intpending) onint(psh); } +#define FORCEINTON {psh->suppressint = 0; if (psh->intpending) onint(psh);} +#define CLEAR_PENDING_INT psh->intpending = 0 +#define int_pending() psh->intpending + +#if !defined(__GNUC__) && !defined(__attribute__) +# define __attribute__(a) +#endif + +SH_NORETURN_1 void exraise(struct shinstance *, int) SH_NORETURN_2; +void onint(struct shinstance *); +SH_NORETURN_1 void error(struct shinstance *, const char *, ...) SH_NORETURN_2; +SH_NORETURN_1 void exerror(struct shinstance *, int, const char *, ...) SH_NORETURN_2; +const char *errmsg(struct shinstance *, int, int); + +SH_NORETURN_1 void sh_err(struct shinstance *, int, const char *, ...) SH_NORETURN_2; +SH_NORETURN_1 void sh_verr(struct shinstance *, int, const char *, va_list) SH_NORETURN_2; +SH_NORETURN_1 void sh_errx(struct shinstance *, int, const char *, ...) SH_NORETURN_2; +SH_NORETURN_1 void sh_verrx(struct shinstance *, int, const char *, va_list) SH_NORETURN_2; +void sh_warn(struct shinstance *, const char *, ...); +void sh_vwarn(struct shinstance *, const char *, va_list); +void sh_warnx(struct shinstance *, const char *, ...); +void sh_vwarnx(struct shinstance *, const char *, va_list); + +SH_NORETURN_1 void sh_exit(struct shinstance *, int) SH_NORETURN_2; + + +/* + * BSD setjmp saves the signal mask, which violates ANSI C and takes time, + * so we use _setjmp instead. + */ + +#if defined(BSD) && !defined(__SVR4) && !defined(__GLIBC__) \ + && !defined(__KLIBC__) && !defined(_MSC_VER) && !defined(__HAIKU__) +#define setjmp(jmploc) _setjmp(jmploc) +#define longjmp(jmploc, val) _longjmp(jmploc, val) +#endif + +#endif |