rxvt-unicode/src/rxvtdaemon.C

/*----------------------------------------------------------------------*
 * File:        rxvtdaemon.C
 *----------------------------------------------------------------------*
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 2003-2007 Marc Lehmann <schmorp@schmorp.de>
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------*/

#include <cstdlib>
#include <cstring>
#include <cstdio>

#include <inttypes.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/utsname.h>

#include "rxvtdaemon.h"

char *rxvt_connection::unix_sockname ()
{
  char name[PATH_MAX];
  char *path = getenv ("RXVT_SOCKET");

  if (!path)
    {
      struct utsname u;
      uname (&u);

      path = getenv ("HOME");
      snprintf (name, PATH_MAX, "%s/.rxvt-unicode-%s",
                path ? path : "/tmp",
                u.nodename);

      path = name;
    }

  return strdup (path);
}

void rxvt_connection::send (const char *data, int len)
{
  uint8_t s[2];

  if (len > 65535)
    len = 65535;

  s[0] = len >> 8; s[1] = len;

  write (fd, s, 2);
  write (fd, data, len);
}

void rxvt_connection::send (const char *data)
{
  send (data, strlen (data));
}

bool rxvt_connection::recv (auto_str &data, int *len)
{
  uint8_t s[2];
  int l;

  if (read (fd, s, 2) != 2)
    return false;

  l = (s[0] << 8) + s[1];
  if (l > 65535)
    return false;

  if (len)
    *len = l;

  data = new char[l + 1];

  if (!data)
    return false;

  if (read (fd, data, l) != l)
    return false;

  data[l] = 0;

  return true;
}

void rxvt_connection::send (int data)
{
  uint8_t s[4];

  s[0] = data >> 24; s[1] = data >> 16; s[2] = data >> 8; s[3] = data;

  write (fd, s, 4);
}

bool rxvt_connection::recv (int &data)
{
  uint8_t s[4];

  if (read (fd, s, 4) != 4)
    return false;

  data = (((((s[0] << 8) | s[1]) << 8) | s[2]) << 8) | s[3];

  return true;
}


Revision:	1.16
Committed:	Sun May 1 13:54:27 2011 UTC (13 years, 1 month ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-9_11, rel-9_12
Changes since 1.15:	+0 -1 lines
Log Message:	Fix compilation on systems that do not provide a definition for PATH_MAX, such as GNU/Hurd.
#	User	Rev	Content
1	root	1.13	/----------------------------------------------------------------------
2	pcg	1.6	* File: rxvtdaemon.C
3			----------------------------------------------------------------------
4			*
5			* All portions of code are copyright by their respective author/s.
6	root	1.15	* Copyright (c) 2003-2007 Marc Lehmann <schmorp@schmorp.de>
7	pcg	1.6	*
8			* This program is free software; you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation; either version 2 of the License, or
11			* (at your option) any later version.
12			*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU General Public License for more details.
17			*
18			* You should have received a copy of the GNU General Public License
19			* along with this program; if not, write to the Free Software
20			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21			----------------------------------------------------------------------/
22
23	pcg	1.1	#include <cstdlib>
24			#include <cstring>
25	pcg	1.4	#include <cstdio>
26	pcg	1.1
27	root	1.7	#include <inttypes.h>
28	pcg	1.3	#include <unistd.h>
29	root	1.9	#include <errno.h>
30			#include <sys/types.h>
31	pcg	1.3	#include <sys/utsname.h>
32
33	pcg	1.1	#include "rxvtdaemon.h"
34
35	pcg	1.3	char *rxvt_connection::unix_sockname ()
36	pcg	1.1	{
37	pcg	1.3	char name[PATH_MAX];
38			char *path = getenv ("RXVT_SOCKET");
39
40			if (!path)
41			{
42			struct utsname u;
43			uname (&u);
44
45			path = getenv ("HOME");
46	root	1.8	snprintf (name, PATH_MAX, "%s/.rxvt-unicode-%s",
47	pcg	1.3	path ? path : "/tmp",
48			u.nodename);
49
50			path = name;
51			}
52
53			return strdup (path);
54	pcg	1.1	}
55
56			void rxvt_connection::send (const char *data, int len)
57			{
58			uint8_t s[2];
59
60	root	1.11	if (len > 65535)
61			len = 65535;
62
63	pcg	1.1	s[0] = len >> 8; s[1] = len;
64
65			write (fd, s, 2);
66			write (fd, data, len);
67			}
68
69			void rxvt_connection::send (const char *data)
70			{
71			send (data, strlen (data));
72			}
73
74	pcg	1.2	bool rxvt_connection::recv (auto_str &data, int *len)
75	pcg	1.1	{
76			uint8_t s[2];
77			int l;
78
79	root	1.10	if (read (fd, s, 2) != 2)
80	pcg	1.1	return false;
81
82			l = (s[0] << 8) + s[1];
83	root	1.11	if (l > 65535)
84	pcg	1.1	return false;
85
86			if (len)
87			*len = l;
88
89			data = new char[l + 1];
90
91			if (!data)
92			return false;
93
94	root	1.10	if (read (fd, data, l) != l)
95	pcg	1.1	return false;
96
97			data[l] = 0;
98
99			return true;
100			}
101
102			void rxvt_connection::send (int data)
103			{
104			uint8_t s[4];
105
106	pcg	1.5	s[0] = data >> 24; s[1] = data >> 16; s[2] = data >> 8; s[3] = data;
107	pcg	1.1
108			write (fd, s, 4);
109			}
110
111			bool rxvt_connection::recv (int &data)
112			{
113			uint8_t s[4];
114
115	root	1.10	if (read (fd, s, 4) != 4)
116	pcg	1.1	return false;
117
118			data = (((((s[0] << 8) \| s[1]) << 8) \| s[2]) << 8) \| s[3];
119
120			return true;
121			}
122
123
124