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/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley Software License Agreement
* specifies the terms and conditions for redistribution.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "sh.h"
#include <locale.h>
#include <dirent.h>
#include <string.h>
/*
* #include <sys/ioctl.h>
* #include <stdlib.h>
*/
#include "sh.tconst.h"
/*
* C Shell
*/
bool errspl; /* Argument to error was spliced by seterr2 */
tchar one[2] = { '1', 0 };
tchar *onev[2] = { one, NOSTR };
/*
* contains DIR * for last opendir_(), its left open if an error
* longjmp (reset) occurs before it gets closed via closedir.
* if its not null in the error handler, then closedir it.
*/
DIR *Dirp = NULL;
/*
* Print error string s with optional argument arg.
* This routine always resets or exits. The flag haderr
* is set so the routine who catches the unwind can propogate
* it if they want.
*
* Note that any open files at the point of error will eventually
* be closed in the routine process in sh.c which is the only
* place error unwinds are ever caught.
*/
/*VARARGS1*/
void
error(s, a1, a2)
char *s;
{
tchar **v;
char *ep;
/*
* Must flush before we print as we wish output before the error
* to go on (some form of) standard output, while output after
* goes on (some form of) diagnostic output.
* If didfds then output will go to 1/2 else to FSHOUT/FSHDIAG.
* See flush in sh.print.c.
*/
flush();
haderr = 1; /* Now to diagnostic output */
timflg = 0; /* This isn't otherwise reset */
if (v = pargv)
pargv = 0, blkfree(v);
if (v = gargv)
gargv = 0, blkfree(v);
/*
* A zero arguments causes no printing, else print
* an error diagnostic here.
*/
if (s) {
printf(s, a1, a2), printf("\n");
}
didfds = 0; /* Forget about 0,1,2 */
if ((ep = err) && errspl) {
errspl = 0;
xfree(ep);
}
errspl = 0;
if ( Dirp ){
closedir(Dirp);
Dirp = NULL;
}
/*
* Go away if -e or we are a child shell
*/
if (exiterr || child) {
exit(1);
}
/*
* Reset the state of the input.
* This buffered seek to end of file will also
* clear the while/foreach stack.
*/
btoeof();
setq(S_status, onev, &shvhed);
if (tpgrp > 0)
(void) ioctl(FSHTTY, TIOCSPGRP, (char *)&tpgrp);
reset(); /* Unwind */
}
/*
* Perror is the shells version of perror which should otherwise
* never be called.
*/
void
Perror(tchar *s)
{
char chbuf[BUFSIZ];
/*
* Perror uses unit 2, thus if we didn't set up the fd's
* we must set up unit 2 now else the diagnostic will disappear
*/
if (!didfds) {
int oerrno = errno;
(void) dcopy(SHDIAG, 2);
errno = oerrno;
}
tstostr(chbuf, s);
perror(chbuf);
error(NULL); /* To exit or unwind */
}
void
bferr(char *cp)
{
flush();
haderr = 1;
if( bname) printf("%t: ", bname);
error("%s", gettext(cp));
}
/*
* The parser and scanner set up errors for later by calling seterr,
* which sets the variable err as a side effect; later to be tested,
* e.g. in process.
*/
void
seterr(char *s)
{
if (err == 0)
err = s, errspl = 0;
}
/* Set err to a splice of cp and dp, to be freed later in error() */
void
seterr2(tchar *cp, char *dp)
{
char chbuf[BUFSIZ];
char *gdp;
if (err)
return;
/* Concatinate cp and dp in the allocated space. */
tstostr(chbuf, cp);
gdp = gettext(dp);
err = (char *)xalloc(strlen(chbuf)+strlen(gdp)+1);
strcpy(err, chbuf);
strcat(err, gdp);
errspl++;/* Remember to xfree(err). */
}
/* Set err to a splice of cp with a string form of character d */
void
seterrc(char *cp, tchar d)
{
char chbuf[MB_LEN_MAX+1];
/* don't overwrite an existing error message */
if (err)
return;
#ifdef MBCHAR
{
wchar_t wcd=(wchar_t)(d&TRIM);
int i;
i = wctomb(chbuf, wcd); /* chbuf holds d in multibyte representation. */
chbuf[(i>0)?i:0] = (char) 0;
}
#else
chbuf[0]=(char)(d&TRIM); chbuf[1]=(char)0;
#endif
/* Concatinate cp and d in the allocated space. */
err = (char *)xalloc(strlen(cp)+strlen(chbuf)+1);
strcpy(err, cp);
strcat(err, chbuf);
errspl++; /* Remember to xfree(err). */
}
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