1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/* pptp_compat.c ... Compatibility functions
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#if defined (__SVR4) && defined (__sun) /* Solaris */
#include <stropts.h>
#endif
#include <strings.h>
#include "pptp_compat.h"
#include <stdio.h>
#include "util.h"
#if defined (__SVR4) && defined (__sun) /* Solaris */
/*
* daemon implementation from uClibc
*/
int daemon(int nochdir, int noclose)
{
int fd;
switch (fork()) {
case -1:
return (-1);
case 0:
break;
default:
_exit(0);
}
if (setsid() == -1)
return (-1);
if (!nochdir)
chdir("/");
if (!noclose && (fd = open("/dev/null", O_RDWR, 0)) != -1) {
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
if (fd > 2)
close (fd);
}
return (0);
}
/*
* openpty implementation based on pts(7D) example
*/
int openpty(int *amaster, int *aslave, char *name, struct termios *termp, struct winsize * winp) {
int fdm,fds;
char * slavename;
/* open master */
if ( (fdm = open("/dev/ptmx", O_RDWR)) == -1 )
return -1;
/* grant access to the slave pseudo-terminal device */
if ( grantpt(fdm) == -1 )
return -1;
/* unlock a pseudo-terminal master/slave pair */
if ( unlockpt(fdm) == -1 )
return -1;
/* get name of the slave pseudo-terminal device */
if ( (slavename = ptsname(fdm)) == NULL )
return -1;
if ( (fds = open(slavename, O_RDWR)) == -1 ) {
free(slavename);
return -1;
}
ioctl(fds, I_PUSH, "ptem"); /* push ptem */
ioctl(fds, I_PUSH, "ldterm"); /* push ldterm*/
if ( name != NULL )
strcpy(name,slavename);
*amaster = fdm;
*aslave = fds;
free(slavename);
return 0;
}
#endif /* Solaris */
|
