/*

* msg.c - routines for error messages.

*/

/*

* Copyright (C) 1986, 1988, 1989, 1991-2001, 2003, 2010-2013

* the Free Software Foundation, Inc.

*

* This file is part of GAWK, the GNU implementation of the

* AWK Programming Language.

*

* GAWK is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 2, or (at your option)

* any later version.

*

* GAWK is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

*/

#include "awk.h"

extern FILE *output_fp;

int sourceline = 0;

char *source = NULL;

static const char *srcfile = NULL;

static int srcline;

jmp_buf fatal_tag;

bool fatal_tag_valid = false;

/* err --- print an error message with source line and file and record */

/* VARARGS2 */

void

err(bool isfatal, const char *s, const char *emsg, va_list argp)

{

char *file;

const char *me;

static bool first = true;

static bool add_src_info = false;

if (first) {

first = false;

add_src_info = (getenv("GAWK_MSG_SRC") != NULL);

}

(void) fflush(output_fp);

me = myname;

(void) fprintf(stderr, "%s: ", me);

if (srcfile != NULL && add_src_info) {

fprintf(stderr, "%s:%d:", srcfile, srcline);

srcfile = NULL;

}

if (sourceline > 0) {

if (source != NULL)

(void) fprintf(stderr, "%s:", source);

else

(void) fprintf(stderr, _("cmd. line:"));

(void) fprintf(stderr, "%d: ", sourceline);

}

#ifdef HAVE_MPFR

if (FNR_node && is_mpg_number(FNR_node->var_value)) {

NODE *val;

val = mpg_update_var(FNR_node);

assert((val->flags & MPZN) != 0);

if (mpz_sgn(val->mpg_i) > 0) {

file = FILENAME_node->var_value->stptr;

(void) putc('(', stderr);

if (file)

(void) fprintf(stderr, "FILENAME=%s ", file);

(void) mpfr_fprintf(stderr, "FNR=%Zd) ", val->mpg_i);

}

} else

#endif

if (FNR > 0) {

file = FILENAME_node->var_value->stptr;

(void) putc('(', stderr);

if (file)

(void) fprintf(stderr, "FILENAME=%s ", file);

(void) fprintf(stderr, "FNR=%ld) ", FNR);

}

(void) fprintf(stderr, "%s", s);

vfprintf(stderr, emsg, argp);

(void) fprintf(stderr, "\n");

(void) fflush(stderr);

if (isfatal) {

#ifdef GAWKDEBUG

abort();

#endif

gawk_exit(EXIT_FATAL);

}

}

/* msg --- take a varargs error message and print it */

void

msg(const char *mesg, ...)

{

va_list args;

va_start(args, mesg);

err(false, "", mesg, args);

va_end(args);

}

/* r_warning --- print a warning message */

void

r_warning(const char *mesg, ...)

{

va_list args;

va_start(args, mesg);

err(false, _("warning: "), mesg, args);

va_end(args);

}

void

error(const char *mesg, ...)

{

va_list args;

va_start(args, mesg);

err(false, _("error: "), mesg, args);

va_end(args);

}

/* set_loc --- set location where a fatal error happened */

void

set_loc(const char *file, int line)

{

srcfile = file;

srcline = line;

/* This stupid line keeps some compilers happy: */

file = srcfile; line = srcline;

}

/* r_fatal --- print a fatal error message */

void

r_fatal(const char *mesg, ...)

{

va_list args;

va_start(args, mesg);

err(true, _("fatal: "), mesg, args);

va_end(args);

}

/* gawk_exit --- longjmp out if necessary */

void

gawk_exit(int status)

{

if (fatal_tag_valid) {

exit_val = status;

longjmp(fatal_tag, 1);

}

final_exit(status);

}

/* final_exit --- run extension exit handlers and exit */

void

final_exit(int status)

{

/* run any extension exit handlers */

run_ext_exit_handlers(status);

/* we could close_io() here */

close_extensions();

exit(status);

}