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Diffstat (limited to 'bin/dash/src/error.c')
| -rw-r--r-- | bin/dash/src/error.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/bin/dash/src/error.c b/bin/dash/src/error.c deleted file mode 100644 index 728ff885..00000000 --- a/bin/dash/src/error.c +++ /dev/null @@ -1,238 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1997-2005 - * Herbert Xu <herbert@gondor.apana.org.au>. 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. - */ - -/* - * Errors and exceptions. - */ - -#include <signal.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <stdio.h> -#include <string.h> - -#include "jobs.h" -#include "shell.h" -#include "main.h" -#include "options.h" -#include "output.h" -#include "error.h" -#include "show.h" -#include "eval.h" -#include "parser.h" -#include "system.h" - - -/* - * Code to handle exceptions in C. - */ - -struct jmploc *handler; -int exception; -int suppressint; -volatile sig_atomic_t intpending; -int errlinno; - - -static void exverror(int, const char *, va_list) - __attribute__((__noreturn__)); - -/* - * Called to raise an exception. Since C doesn't include exceptions, we - * just do a longjmp to the exception handler. The type of exception is - * stored in the global variable "exception". - */ - -void -exraise(int e) -{ -#ifdef DEBUG - if (handler == NULL) - abort(); -#endif - - if (vforked) - _exit(exitstatus); - - INTOFF; - - exception = e; - longjmp(handler->loc, 1); -} - - -/* - * Called from trap.c when a SIGINT is received. (If the user specifies - * that SIGINT is to be trapped or ignored using the trap builtin, then - * this routine is not called.) Suppressint is nonzero when interrupts - * are held using the INTOFF macro. (The test for iflag is just - * defensive programming.) - */ - -void -onint(void) { - - intpending = 0; - sigclearmask(); - if (!(rootshell && iflag)) { - signal(SIGINT, SIG_DFL); - raise(SIGINT); - } - exitstatus = SIGINT + 128; - exraise(EXINT); - /* NOTREACHED */ -} - -static void -exvwarning2(const char *msg, va_list ap) -{ - struct output *errs; - const char *name; - const char *fmt; - - errs = out2; - name = arg0 ? arg0 : "sh"; - if (!commandname) - fmt = "%s: %d: "; - else - fmt = "%s: %d: %s: "; - outfmt(errs, fmt, name, errlinno, commandname); - doformat(errs, msg, ap); -#if FLUSHERR - outc('\n', errs); -#else - outcslow('\n', errs); -#endif -} - -#define exvwarning(a, b, c) exvwarning2(b, c) - -/* - * Exverror is called to raise the error exception. If the second argument - * is not NULL then error prints an error message using printf style - * formatting. It then raises the error exception. - */ -static void -exverror(int cond, const char *msg, va_list ap) -{ -#ifdef DEBUG - if (msg) { - va_list aq; - TRACE(("exverror(%d, \"", cond)); - va_copy(aq, ap); - TRACEV((msg, aq)); - va_end(aq); - TRACE(("\") pid=%d\n", getpid())); - } else - TRACE(("exverror(%d, NULL) pid=%d\n", cond, getpid())); - if (msg) -#endif - exvwarning(-1, msg, ap); - - flushall(); - exraise(cond); - /* NOTREACHED */ -} - - -void -sh_error(const char *msg, ...) -{ - va_list ap; - - exitstatus = 2; - - va_start(ap, msg); - exverror(EXERROR, msg, ap); - /* NOTREACHED */ - va_end(ap); -} - - -void -exerror(int cond, const char *msg, ...) -{ - va_list ap; - - va_start(ap, msg); - exverror(cond, msg, ap); - /* NOTREACHED */ - va_end(ap); -} - -/* - * error/warning routines for external builtins - */ - -void -sh_warnx(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - exvwarning(-1, fmt, ap); - va_end(ap); -} - - -/* - * Return a string describing an error. The returned string may be a - * pointer to a static buffer that will be overwritten on the next call. - * Action describes the operation that got the error. - */ - -const char * -errmsg(int e, int action) -{ - if (e != ENOENT && e != ENOTDIR) - return strerror(e); - - if (action & E_OPEN) - return "No such file"; - else if (action & E_CREAT) - return "Directory nonexistent"; - else - return "not found"; -} - - -#ifdef REALLY_SMALL -void -__inton() { - if (--suppressint == 0 && intpending) { - onint(); - } -} -#endif |