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Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
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bash_114.zip
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bash-1.14.2
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error.c
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1994-03-31
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/* error.c -- Functions for handling errors. */
/* Copyright (C) 1993 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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.
Bash 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 Bash; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include <fcntl.h>
#if defined (HAVE_VFPRINTF)
#include <varargs.h>
#endif
#include <errno.h>
#if !defined (errno)
extern int errno;
#endif /* !errno */
#include "bashansi.h"
#include "flags.h"
#include "error.h"
#include "command.h"
#include "general.h"
extern int interactive_shell;
extern char *dollar_vars[];
extern char *shell_name;
extern char *the_current_maintainer;
#if defined (JOB_CONTROL)
extern pid_t shell_pgrp;
#endif /* JOB_CONTROL */
/* Return the name of the shell or the shell script for error reporting. */
char *
get_name_for_error ()
{
char *name = (char *) NULL;
if (!interactive_shell)
name = dollar_vars[0];
if (!name && shell_name && *shell_name)
name = base_pathname (shell_name);
if (!name)
name = "bash";
return (name);
}
/* Report an error having to do with FILENAME. */
void
file_error (filename)
char *filename;
{
report_error ("%s: %s", filename, strerror (errno));
}
#if !defined (HAVE_VFPRINTF)
void
programming_error (reason, arg1, arg2, arg3, arg4, arg5)
char *reason;
{
#if defined (JOB_CONTROL)
give_terminal_to (shell_pgrp);
#endif /* JOB_CONTROL */
report_error (reason, arg1, arg2);
fprintf (stderr, "Report this to %s\n", the_current_maintainer);
fprintf (stderr, "Stopping myself...");
fflush (stderr);
abort ();
}
void
report_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
if (exit_immediately_on_error)
exit (1);
}
void
fatal_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
exit (2);
}
void
internal_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
}
#else /* We have VARARGS support, so use it. */
void
programming_error (va_alist)
va_dcl
{
va_list args;
char *format;
#if defined (JOB_CONTROL)
give_terminal_to (shell_pgrp);
#endif /* JOB_CONTROL */
va_start (args);
format = va_arg (args, char *);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
fprintf (stderr, "Tell %s to fix this someday.\n", the_current_maintainer);
fprintf (stderr, "Stopping myself...");
fflush (stderr);
abort ();
}
void
report_error (va_alist)
va_dcl
{
va_list args;
char *format;
fprintf (stderr, "%s: ", get_name_for_error ());
va_start (args);
format = va_arg (args, char *);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
if (exit_immediately_on_error)
exit (1);
}
void
fatal_error (va_alist)
va_dcl
{
va_list args;
char *format;
fprintf (stderr, "%s: ", get_name_for_error ());
va_start (args);
format = va_arg (args, char *);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
exit (2);
}
void
internal_error (va_alist)
va_dcl
{
va_list args;
char *format;
fprintf (stderr, "%s: ", get_name_for_error ());
va_start (args);
format = va_arg (args, char *);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
}
itrace (va_alist)
va_dcl
{
va_list args;
char *format;
fprintf(stderr, "TRACE: pid %d: ", getpid());
va_start (args);
format = va_arg (args, char *);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
fflush(stderr);
}
#if 0
/* A trace function for silent debugging -- doesn't require a control
terminal. */
trace (va_alist)
va_dcl
{
va_list args;
char *format;
static FILE *tracefp = (FILE *)NULL;
if (tracefp == NULL)
tracefp = fopen("/usr/tmp/bash-trace.log", "a+");
if (tracefp == NULL)
tracefp = stderr;
else
fcntl (fileno (tracefp), F_SETFD, 1); /* close-on-exec */
fprintf(tracefp, "TRACE: pid %d: ", getpid());
va_start (args);
format = va_arg (args, char *);
vfprintf (tracefp, format, args);
fprintf (tracefp, "\n");
va_end (args);
fflush(tracefp);
}
#endif
#endif /* HAVE_VFPRINTF */