source: projects/initscripts/tags/initscripts-8.91.3/src/netreport.c @ 1108

Revision 1108, 1.8 KB checked in by daisuke, 13 years ago (diff)

import initscripts-8.90.6 from internal cvs repository

Line 
1/*
2 * Copyright (c) 1997-2002 Red Hat, Inc. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2,
6 * as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
16 *
17 */
18#include <errno.h>
19#include <fcntl.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23#include <unistd.h>
24
25/* this will be running setgid root, so be careful! */
26
27static void
28usage(void) {
29    fprintf(stderr, "usage: netreport [-r]\n");
30    exit(1);
31}
32
33#define ADD 1
34#define DEL 0
35int main(int argc, char ** argv) {
36    int action = ADD;
37    /* more than long enough for "/var/run/netreport/<pid>\0" */
38    char netreport_name[64];
39    int  netreport_file;
40
41    if (argc > 2) {
42        usage();
43    }
44
45    if (argc > 1) {
46          if (argc == 2 && strcmp(argv[1], "-r") == 0) {
47                  action = DEL;
48          } else {
49                  usage();
50          }
51    }
52
53    snprintf(netreport_name, sizeof(netreport_name),
54             "/var/run/netreport/%d", getppid());
55    if (action == ADD) {
56        netreport_file = open(netreport_name,
57                              O_EXCL|O_CREAT|O_WRONLY|O_TRUNC|O_NOFOLLOW, 0);
58        if (netreport_file == -1) {
59            if (errno != EEXIST) {
60                perror("Could not create netreport file");
61                exit (1);
62            }
63        } else {
64            close(netreport_file);
65        }
66    } else {
67        /* ignore errors; not much we can do, won't hurt anything */
68        unlink(netreport_name);
69    }
70
71    return 0;
72}
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