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
|
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2010 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#include "FEATURE/uwin"
#if !_UWIN || _lib_getpass
void _STUB_getpass(){}
#else
#pragma prototyped
#define getpass ______getpass
#include <ast.h>
#include <termios.h>
#include <signal.h>
#undef getpass
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
static int interrupt;
static void handler(int sig)
{
interrupt++;
}
extern char* getpass(const char *prompt)
{
struct termios told,tnew;
Sfio_t *iop;
static char *cp, passwd[32];
void (*savesig)(int);
if(!(iop = sfopen((Sfio_t*)0, "/dev/tty", "r")))
return(0);
if(tcgetattr(sffileno(iop),&told) < 0)
return(0);
interrupt = 0;
tnew = told;
tnew.c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL);
if(tcsetattr(sffileno(iop),TCSANOW,&tnew) < 0)
return(0);
savesig = signal(SIGINT, handler);
sfputr(sfstderr,prompt,-1);
if(cp = sfgetr(iop,'\n',1))
strncpy(passwd,cp,sizeof(passwd)-1);
tcsetattr(sffileno(iop),TCSANOW,&told);
sfputc(sfstderr,'\n');
sfclose(iop);
signal(SIGINT, savesig);
if(interrupt)
kill(getpid(),SIGINT);
return(cp?passwd:0);
}
#endif
|
