Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/uwin/getpass.c
1811 views
1
/***********************************************************************

2
*                                                                      *

3
*               This software is part of the ast package               *

4
*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

5
*                      and is licensed under the                       *

6
*                 Eclipse Public License, Version 1.0                  *

7
*                    by AT&T Intellectual Property                     *

8
*                                                                      *

9
*                A copy of the License is available at                 *

10
*          http://www.eclipse.org/org/documents/epl-v10.html           *

11
*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

12
*                                                                      *

13
*              Information and Software Systems Research               *

14
*                            AT&T Research                             *

15
*                           Florham Park NJ                            *

16
*                                                                      *

17
*                 Glenn Fowler <[email protected]>                  *

18
*                  David Korn <[email protected]>                   *

19
*                   Phong Vo <[email protected]>                    *

20
*                                                                      *

21
***********************************************************************/

22
#include "FEATURE/uwin"

23


24
#if !_UWIN || _lib_getpass

25


26
void _STUB_getpass(){}

27


28
#else

29


30
#pragma prototyped

31


32
#define getpass	______getpass

33


34
#include	<ast.h>

35
#include	<termios.h>

36
#include	<signal.h>

37


38
#undef	getpass

39


40
#if defined(__EXPORT__)

41
#define extern		__EXPORT__

42
#endif

43


44
static int interrupt;

45
static void handler(int sig)

46
{

47
	interrupt++;

48
}

49


50
extern char*	getpass(const char *prompt)

51
{

52
	struct termios told,tnew;

53
	Sfio_t *iop;

54
	static char *cp, passwd[32];

55
	void (*savesig)(int);

56
	if(!(iop = sfopen((Sfio_t*)0, "/dev/tty", "r")))

57
		return(0);

58
	if(tcgetattr(sffileno(iop),&told) < 0)

59
		return(0);

60
	interrupt = 0;

61
	tnew = told;

62
	tnew.c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL);

63
	if(tcsetattr(sffileno(iop),TCSANOW,&tnew) < 0)

64
		return(0);

65
	savesig = signal(SIGINT, handler);

66
	sfputr(sfstderr,prompt,-1);

67
	if(cp = sfgetr(iop,'\n',1))

68
		strncpy(passwd,cp,sizeof(passwd)-1);

69
	tcsetattr(sffileno(iop),TCSANOW,&told);

70
	sfputc(sfstderr,'\n');

71
	sfclose(iop);

72
	signal(SIGINT, savesig);

73
	if(interrupt)

74
		kill(getpid(),SIGINT);

75
	return(cp?passwd:0);

76
}

77


78


79
#endif

80


81