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Comparing gvpe/src/util.C (file contents):
Revision 1.6 by pcg, Wed Apr 2 05:15:00 2003 UTC vs.
Revision 1.17 by pcg, Fri Mar 18 01:53:05 2005 UTC

1/* 1/*
2 util.C -- process management and other utility functions 2 util.C -- process management and other utility functions
3 Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
3 4
4 Some of these are taken from tinc, see the AUTHORS file. 5 Some of these are taken from tinc, see the AUTHORS file.
5 6
7 This file is part of GVPE.
8
6 This program is free software; you can redistribute it and/or modify 9 GVPE is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by 10 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or 11 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version. 12 (at your option) any later version.
10 13
11 This program is distributed in the hope that it will be useful, 14 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details. 17 GNU General Public License for more details.
15 18
16 You should have received a copy of the GNU General Public License 19 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software 20 along with gvpe; if not, write to the Free Software
18 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19*/ 22*/
20 23
21#include "config.h" 24#include "config.h"
22 25
23#include <cstdio> 26#include <cstdio>
27#include <cstdlib>
24#include <cstring> 28#include <cstring>
25 29
26#include <errno.h> 30#include <errno.h>
27#include <signal.h> 31#include <signal.h>
28#include <sys/types.h> 32#include <sys/types.h>
29#include <sys/wait.h> 33#include <sys/wait.h>
30#include <unistd.h> 34#include <unistd.h>
31#include <time.h> 35#include <time.h>
32#include <sys/socket.h>
33#include <netinet/in.h>
34#include <arpa/inet.h>
35 36
36
37#include <sys/mman.h>
38
39#include "gettext.h" 37#include "netcompat.h"
38
40#include "pidfile.h" 39#include "pidfile.h"
41#include "dropin.h" 40#include "dropin.h"
42 41
43#include "global.h" 42#include "global.h"
44#include "conf.h" 43#include "conf.h"
… …
48int 47int
49write_pidfile (void) 48write_pidfile (void)
50{ 49{
51 int pid; 50 int pid;
52 51
53 pid = check_pid (pidfilename); 52 pid = check_pid (conf.pidfilename);
54 53
55 if (pid) 54 if (pid)
56 { 55 {
57 fprintf (stderr, _("A vped is already running with pid %d.\n"), pid); 56 fprintf (stderr, _("A gvpe daemon is already running with pid %d.\n"), pid);
58 return 1; 57 return 1;
59 } 58 }
60 59
61 /* if it's locked, write-protected, or whatever */ 60 /* if it's locked, write-protected, or whatever */
62 if (!write_pid (pidfilename)) 61 if (!write_pid (conf.pidfilename))
63 return 1; 62 return 1;
64 63
65 return 0; 64 return 0;
66} 65}
67 66
68int 67int
69kill_other (int signal) 68kill_other (int signal)
70{ 69{
71 int pid; 70 int pid;
72 71
73 pid = read_pid (pidfilename); 72 pid = read_pid (conf.pidfilename);
74 73
75 if (!pid) 74 if (!pid)
76 { 75 {
77 fprintf (stderr, _("No other vped is running.\n")); 76 fprintf (stderr, _("No other gvpe daemon is running.\n"));
78 return 1; 77 return 1;
79 } 78 }
80 79
81 errno = 0; /* No error, sometimes errno is only changed on error */ 80 errno = 0; /* No error, sometimes errno is only changed on error */
82 81
83 /* ESRCH is returned when no process with that pid is found */ 82 /* ESRCH is returned when no process with that pid is found */
84 if (kill (pid, signal) && errno == ESRCH) 83 if (kill (pid, signal) && errno == ESRCH)
85 { 84 {
86 fprintf (stderr, _("The vped is no longer running. ")); 85 fprintf (stderr, _("The gvpe daemon is no longer running. "));
87 86
88 fprintf (stderr, _("Removing stale lock file.\n")); 87 fprintf (stderr, _("Removing stale lock file.\n"));
89 remove_pid (pidfilename); 88 remove_pid (conf.pidfilename);
90 } 89 }
91 90
92 return 0; 91 return 0;
93} 92}
94 93
… …
114 return -1; 113 return -1;
115 } 114 }
116 115
117 /* Now UPDATE the pid in the pidfile, because we changed it... */ 116 /* Now UPDATE the pid in the pidfile, because we changed it... */
118 117
119 if (!write_pid (pidfilename)) 118 if (!write_pid (conf.pidfilename))
120 return -1; 119 return -1;
121 120
122 log_to (LOGTO_SYSLOG); 121 log_to (LOGTO_SYSLOG);
123 } 122 }
124 else 123 else
125 log_to (LOGTO_SYSLOG | LOGTO_STDERR); 124 log_to (LOGTO_SYSLOG | LOGTO_STDERR);
126 125
127 slog (L_INFO, _("vped %s (%s %s) starting"), VERSION, __DATE__, __TIME__); 126 slog (L_INFO, _("gvpe daemon %s (%s %s) starting"), VERSION, __DATE__, __TIME__);
128 127
129 return 0; 128 return 0;
130}
131
132void
133make_names (void)
134{
135 if (!pidfilename)
136 pidfilename = LOCALSTATEDIR "/run/vped.pid";
137
138 if (!confbase)
139 asprintf (&confbase, "%s/vpe", CONFDIR);
140} 129}
141 130
142void run_script (const run_script_cb &cb, bool wait) 131void run_script (const run_script_cb &cb, bool wait)
143{ 132{
144 int pid; 133 int pid;
… …
146 if ((pid = fork ()) == 0) 135 if ((pid = fork ()) == 0)
147 { 136 {
148 char *filename; 137 char *filename;
149 asprintf (&filename, "%s/%s", confbase, cb()); 138 asprintf (&filename, "%s/%s", confbase, cb());
150 execl (filename, filename, (char *) 0); 139 execl (filename, filename, (char *) 0);
151 exit (255); 140 exit (126);
152 } 141 }
153 else if (pid > 0) 142 else if (pid > 0)
154 { 143 {
155 if (wait) 144 if (wait)
156 { 145 {
157 waitpid (pid, 0, 0); 146 waitpid (pid, 0, 0);
158 /* TODO: check status */ 147 /* TODO: check status */
159 } 148 }
160 } 149 }
161} 150}
151
152#if ENABLE_HTTP_PROXY
153// works like strdup
154u8 *
155base64_encode (const u8 *data, unsigned int len)
156{
157 const static char base64[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
158
159 unsigned int t, i;
160 const u8 *end = data + len;
161 u8 *res = new u8 [4 * ((len + 2) / 3) + 1];
162 u8 *out = res;
163
164 while (data <= end - 3)
165 {
166 t = (((data[0] << 8) | data[1]) << 8) | data[2];
167 data += 3;
168
169 *out++ = base64[(t >> 18) & 0x3f];
170 *out++ = base64[(t >> 12) & 0x3f];
171 *out++ = base64[(t >> 6) & 0x3f];
172 *out++ = base64[(t ) & 0x3f];
173 }
174
175 for (t = 0, i = 0; data < end; i++)
176 t = (t << 8) | *data++;
177
178 switch (i)
179 {
180 case 2:
181 *out++ = base64[(t >> 10) & 0x3f];
182 *out++ = base64[(t >> 4) & 0x3f];
183 *out++ = base64[(t << 2) & 0x3f];
184 *out++ = '=';
185 break;
186 case 1:
187 *out++ = base64[(t >> 2) & 0x3f];
188 *out++ = base64[(t << 4) & 0x3f];
189 *out++ = '=';
190 *out++ = '=';
191 break;
192 }
193
194 *out++ = 0;
195
196 return res;
197}
198#endif
199
200void
201id2mac (unsigned int id, void *m)
202{
203 mac &p = *(mac *)m;
204
205 if (id)
206 {
207 p[0] = 0xfe;
208 p[1] = 0xfd;
209 p[2] = 0x80;
210 p[3] = 0x00;
211 p[4] = id >> 8;
212 p[5] = id;
213 }
214 else
215 {
216 p[0] = 0xff;
217 p[1] = 0xff;
218 p[2] = 0xff;
219 p[3] = 0xff;
220 p[4] = 0xff;
221 p[5] = 0xff;
222 }
223}
224

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