From 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe Mon Sep 17 00:00:00 2001 From: Kiyoshi Aman Date: Fri, 1 Feb 2019 22:55:37 +0000 Subject: initial population --- bin/sh/error.h | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 bin/sh/error.h (limited to 'bin/sh/error.h') diff --git a/bin/sh/error.h b/bin/sh/error.h new file mode 100644 index 0000000..8dcf737 --- /dev/null +++ b/bin/sh/error.h @@ -0,0 +1,120 @@ +/* $NetBSD: error.h,v 1.21 2018/08/19 23:50:27 kre 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 + */ + +#include + +/* + * 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. + */ + +#include + +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 */ +#define EXEXIT 4 /* shell wants to exit(exitstatus) */ + + +/* + * 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 suppressint++ +#define INTON do { if (--suppressint == 0 && intpending) onint(); } while (0) +#define FORCEINTON do { suppressint = 0; if (intpending) onint(); } while (0) +#define CLEAR_PENDING_INT (intpending = 0) +#define int_pending() intpending + +#if ! defined(SHELL_BUILTIN) +void exraise(int) __dead; +void onint(void); +void error(const char *, ...) __dead __printflike(1, 2); +void exerror(int, const char *, ...) __dead __printflike(2, 3); +const char *errmsg(int, int); +#endif /* ! SHELL_BUILTIN */ + +void sh_err(int, const char *, ...) __dead __printflike(2, 3); +void sh_verr(int, const char *, va_list) __dead __printflike(2, 0); +void sh_errx(int, const char *, ...) __dead __printflike(2, 3); +void sh_verrx(int, const char *, va_list) __dead __printflike(2, 0); +void sh_warn(const char *, ...) __printflike(1, 2); +void sh_vwarn(const char *, va_list) __printflike(1, 0); +void sh_warnx(const char *, ...) __printflike(1, 2); +void sh_vwarnx(const char *, va_list) __printflike(1, 0); + +void sh_exit(int) __dead; + + +/* + * BSD setjmp saves the signal mask, which violates ANSI C and takes time, + * so we use _setjmp instead. + */ + +#if defined(BSD) && !defined(__SVR4) +#define setjmp(jmploc) _setjmp(jmploc) +#define longjmp(jmploc, val) _longjmp(jmploc, val) +#endif -- cgit v1.2.3-60-g2f50