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/* common.c */
/*
Copyright (C) 1993, 1996, 1997, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of the GNU Accounting Utilities
The GNU Accounting Utilities are free software; you can redistribute
them and/or modify them under the terms of the GNU General Public
License as published by the Free Software Foundation; either version
3, or (at your option) any later version.
The GNU Accounting Utilities are distributed in the hope that they 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 the GNU Accounting Utilities; see the file COPYING. If
not, write to the Free Software Foundation, 675 Mass Ave, Cambridge,
MA 02139, USA.
*/
#include "config.h"
/* AIX requires this to be the first thing in the file. */
#ifdef __GNUC__
# define alloca __builtin_alloca
#else
# ifdef HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
#pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca ();
# endif
# endif
# endif
#endif
#include "files.h"
#include "xalloc.h"
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "common.h"
extern char *program_name;
/* Exit the program with error message S */
void fatal(char *s)
{
(void)fprintf(stderr, "%s: %s\n", program_name, s);
exit(EXIT_FAILURE);
}
/* open file FILE_NAME & return a pointer to it */
FILE *file_open(char *file_name, int write_flag)
{
FILE *fp = NULL;
if (file_name == NULL)
fatal("file_open: FILE_NAME is NULL");
if (strcmp(file_name, "-") == 0)
return write_flag ? stdout : stdin;
if ((fp = fopen(file_name, write_flag ? "wb" : "rb")) == NULL)
{
char *tmp = (char *)alloca(sizeof (char) *(strlen(file_name) + 30));
(void)sprintf(tmp, "couldn't open file '%s'", file_name);
perror(tmp);
}
return fp;
}
/* Print the default wtmp file (for ac, last). */
void print_wtmp_file_location(void)
{
(void)printf("\nThe system's default login accounting file is %s.\n", WTMP_FILE_LOC);
}
/* Print the default acct file (for accton, lastcomm). */
void print_acct_file_location(void)
{
(void)printf("\nThe system's default process accounting file is %s.\n", ACCT_FILE_LOC);
}
/* Print the default acct file (for sa). */
void print_acct_file_locations(void)
{
(void)printf("The system's default process accounting files are:\n\n");
(void)printf(" raw process accounting data: %s\n", ACCT_FILE_LOC);
(void)printf(" summary by command name: %s\n", SAVACCT_FILE_LOC);
(void)printf(" summary by username: %s\n\n", USRACCT_FILE_LOC);
}
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