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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
#include "git-compat-util.h"
#include "compat/terminal.h"
#include "sigchain.h"
#include "strbuf.h"
#if defined(HAVE_DEV_TTY) || defined(GIT_WINDOWS_NATIVE)
static void restore_term(void);
static void restore_term_on_signal(int sig)
{
restore_term();
sigchain_pop(sig);
raise(sig);
}
#ifdef HAVE_DEV_TTY
#define INPUT_PATH "/dev/tty"
#define OUTPUT_PATH "/dev/tty"
static int term_fd = -1;
static struct termios old_term;
static void restore_term(void)
{
if (term_fd < 0)
return;
tcsetattr(term_fd, TCSAFLUSH, &old_term);
close(term_fd);
term_fd = -1;
}
static int disable_echo(void)
{
struct termios t;
term_fd = open("/dev/tty", O_RDWR);
if (tcgetattr(term_fd, &t) < 0)
goto error;
old_term = t;
sigchain_push_common(restore_term_on_signal);
t.c_lflag &= ~ECHO;
if (!tcsetattr(term_fd, TCSAFLUSH, &t))
return 0;
error:
close(term_fd);
term_fd = -1;
return -1;
}
#elif defined(GIT_WINDOWS_NATIVE)
#define INPUT_PATH "CONIN$"
#define OUTPUT_PATH "CONOUT$"
#define FORCE_TEXT "t"
static HANDLE hconin = INVALID_HANDLE_VALUE;
static DWORD cmode;
static void restore_term(void)
{
if (hconin == INVALID_HANDLE_VALUE)
return;
SetConsoleMode(hconin, cmode);
CloseHandle(hconin);
hconin = INVALID_HANDLE_VALUE;
}
static int disable_echo(void)
{
hconin = CreateFile("CONIN$", GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hconin == INVALID_HANDLE_VALUE)
return -1;
GetConsoleMode(hconin, &cmode);
sigchain_push_common(restore_term_on_signal);
if (!SetConsoleMode(hconin, cmode & (~ENABLE_ECHO_INPUT))) {
CloseHandle(hconin);
hconin = INVALID_HANDLE_VALUE;
return -1;
}
return 0;
}
#endif
#ifndef FORCE_TEXT
#define FORCE_TEXT
#endif
char *git_terminal_prompt(const char *prompt, int echo)
{
static struct strbuf buf = STRBUF_INIT;
int r;
FILE *input_fh, *output_fh;
input_fh = fopen(INPUT_PATH, "r" FORCE_TEXT);
if (!input_fh)
return NULL;
output_fh = fopen(OUTPUT_PATH, "w" FORCE_TEXT);
if (!output_fh) {
fclose(input_fh);
return NULL;
}
if (!echo && disable_echo()) {
fclose(input_fh);
fclose(output_fh);
return NULL;
}
fputs(prompt, output_fh);
fflush(output_fh);
r = strbuf_getline(&buf, input_fh, '\n');
if (!echo) {
putc('\n', output_fh);
fflush(output_fh);
}
restore_term();
fclose(input_fh);
fclose(output_fh);
if (r == EOF)
return NULL;
return buf.buf;
}
#else
char *git_terminal_prompt(const char *prompt, int echo)
{
return getpass(prompt);
}
#endif
|
