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[utils] windows implementation for freerdp_interruptible_getc

This commit is contained in:
Armin Novak 2023-02-27 08:38:27 +01:00 committed by akallabeth
parent e673405711
commit 5bf3a06a30
1 changed files with 64 additions and 40 deletions
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104
libfreerdp/utils/passphrase.c
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@ -28,66 +28,89 @@
#include <io.h>
#include <conio.h>
char read_chr(int isTty)
static char read_chr(FILE* f)
{
char chr;
const BOOL isTty = _isatty(_fileno(f));
if (isTty)
return _getch();
if (scanf_s("%c", &chr, (UINT32)sizeof(char)) && !feof(stdin))
return fgetc(f);
if (fscanf_s(f, "%c", &chr, (UINT32)sizeof(char)) && !feof(f))
return chr;
return 0;
}
char* freerdp_passphrase_read(const char* prompt, char* buf, size_t bufsiz, int from_stdin)
int freerdp_interruptible_getc(rdpContext* context, FILE* f)
{
const char CTRLC = 3;
const char BACKSPACE = '\b';
const char NEWLINE = '\n';
const char CARRIAGERETURN = '\r';
const char SHOW_ASTERISK = TRUE;
HANDLE handles[] = { (HANDLE)_get_osfhandle(_fileno(f)), freerdp_abort_event(context) };
const DWORD status = WaitForMultipleObjects(ARRAYSIZE(handles), handles, FALSE, INFINITE);
switch (status)
{
case WAIT_OBJECT_0:
return read_chr(f);
default:
return EOF;
}
}
char* freerdp_passphrase_read(rdpContext* context, const char* prompt, char* buf, size_t bufsiz,
int from_stdin)
{
#define CTRLC 3
#define BACKSPACE '\b'
#define NEWLINE '\n'
#define CARRIAGERETURN '\r'
#define SHOW_ASTERISK TRUE
size_t read_cnt = 0, chr;
char isTty;
if (from_stdin)
{
printf("%s ", prompt);
fflush(stdout);
isTty = _isatty(_fileno(stdin));
while (read_cnt < bufsiz - 1 && (chr = read_chr(isTty)) && chr != NEWLINE &&
chr != CARRIAGERETURN)
while (read_cnt < bufsiz - 1 && (chr = freerdp_interruptible_getc(context, stdin)) &&
chr != NEWLINE && chr != CARRIAGERETURN)
{
if (chr == BACKSPACE)
switch (chr)
{
if (read_cnt > 0)
case EOF:
goto end;
case BACKSPACE:
{
if (SHOW_ASTERISK)
printf("\b \b");
read_cnt--;
}
}
else if (chr == CTRLC)
{
if (read_cnt != 0)
{
while (read_cnt > 0)
if (read_cnt > 0)
{
if (SHOW_ASTERISK)
printf("\b \b");
read_cnt--;
}
}
else
goto fail;
}
else
{
*(buf + read_cnt) = chr;
read_cnt++;
if (SHOW_ASTERISK)
printf("*");
break;
case CTRLC:
{
if (read_cnt != 0)
{
while (read_cnt > 0)
{
if (SHOW_ASTERISK)
printf("\b \b");
read_cnt--;
}
}
else
goto fail;
}
break;
default:
{
*(buf + read_cnt) = chr;
read_cnt++;
if (SHOW_ASTERISK)
printf("*");
}
break;
}
}
end:
*(buf + read_cnt) = '\0';
printf("\n");
fflush(stdout);
@ -259,11 +282,11 @@ int freerdp_interruptible_getc(rdpContext* context, FILE* f)
const int res = wait_for_fd(fd, 10);
if (res != 0)
{
char c = 0;
const ssize_t rd = read(fd, &c, 1);
if (rd == 1)
rc = c;
break;
char c = 0;
const ssize_t rd = read(fd, &c, 1);
if (rd == 1)
rc = c;
break;
}
} while (!freerdp_shall_disconnect_context(context));
@ -273,7 +296,8 @@ int freerdp_interruptible_getc(rdpContext* context, FILE* f)
#else
char* freerdp_passphrase_read(const char* prompt, char* buf, size_t bufsiz, int from_stdin)
char* freerdp_passphrase_read(rdpContext* context, const char* prompt, char* buf, size_t bufsiz,
int from_stdin)
{
return NULL;
}