rxvt-unicode/src/rxvtdaemon.C

/*--------------------------------*-C-*---------------------------------*
 * File:        rxvtdaemon.C
 *----------------------------------------------------------------------*
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>
 *
 * 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 <limits.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];

  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 > 4096)
    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:	1.10
Committed:	Sun Dec 25 16:19:34 2005 UTC (18 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-6_2, rel-6_3, rel-6_1
Changes since 1.9:	+3 -16 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.6	/---------------------------------C----------------------------------
2			* File: rxvtdaemon.C
3			----------------------------------------------------------------------
4			*
5			* All portions of code are copyright by their respective author/s.
6			* Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>
7			*
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			#include <limits.h>
33
34	pcg	1.1	#include "rxvtdaemon.h"
35
36	pcg	1.3	char *rxvt_connection::unix_sockname ()
37	pcg	1.1	{
38	pcg	1.3	char name[PATH_MAX];
39			char *path = getenv ("RXVT_SOCKET");
40
41			if (!path)
42			{
43			struct utsname u;
44			uname (&u);
45
46			path = getenv ("HOME");
47	root	1.8	snprintf (name, PATH_MAX, "%s/.rxvt-unicode-%s",
48	pcg	1.3	path ? path : "/tmp",
49			u.nodename);
50
51			path = name;
52			}
53
54			return strdup (path);
55	pcg	1.1	}
56
57			void rxvt_connection::send (const char *data, int len)
58			{
59			uint8_t s[2];
60
61			s[0] = len >> 8; s[1] = len;
62
63			write (fd, s, 2);
64			write (fd, data, len);
65			}
66
67			void rxvt_connection::send (const char *data)
68			{
69			send (data, strlen (data));
70			}
71
72	pcg	1.2	bool rxvt_connection::recv (auto_str &data, int *len)
73	pcg	1.1	{
74			uint8_t s[2];
75			int l;
76
77	root	1.10	if (read (fd, s, 2) != 2)
78	pcg	1.1	return false;
79
80			l = (s[0] << 8) + s[1];
81			if (l > 4096)
82			return false;
83
84			if (len)
85			*len = l;
86
87			data = new char[l + 1];
88
89			if (!data)
90			return false;
91
92	root	1.10	if (read (fd, data, l) != l)
93	pcg	1.1	return false;
94
95			data[l] = 0;
96
97			return true;
98			}
99
100			void rxvt_connection::send (int data)
101			{
102			uint8_t s[4];
103
104	pcg	1.5	s[0] = data >> 24; s[1] = data >> 16; s[2] = data >> 8; s[3] = data;
105	pcg	1.1
106			write (fd, s, 4);
107			}
108
109			bool rxvt_connection::recv (int &data)
110			{
111			uint8_t s[4];
112
113	root	1.10	if (read (fd, s, 4) != 4)
114	pcg	1.1	return false;
115
116			data = (((((s[0] << 8) \| s[1]) << 8) \| s[2]) << 8) \| s[3];
117
118			return true;
119			}
120
121
122