* [PATCH v2 1/6] mingw: correct exit-code for SIGALRM's SIG_DFL
2012-12-04 8:10 [PATCH v2 0/6] win32: support echo for terminal-prompt Erik Faye-Lund
@ 2012-12-04 8:10 ` Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 2/6] mingw: make fgetc raise SIGINT if apropriate Erik Faye-Lund
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Erik Faye-Lund @ 2012-12-04 8:10 UTC (permalink / raw)
To: git; +Cc: msysgit, johannes.schindelin, gitster, peff
Make sure SIG_DFL for SIGALRM exits with 128 + SIGALRM so other
processes can diagnose why it exits.
While we're at it, make sure we only write to stderr if it's a
terminal, and change the output to match that of Linux.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
compat/mingw.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/compat/mingw.c b/compat/mingw.c
index afc892d..78e8f54 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1538,8 +1538,11 @@ static sig_handler_t timer_fn = SIG_DFL;
static unsigned __stdcall ticktack(void *dummy)
{
while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
- if (timer_fn == SIG_DFL)
- die("Alarm");
+ if (timer_fn == SIG_DFL) {
+ if (isatty(STDERR_FILENO))
+ fputs("Alarm clock\n", stderr);
+ exit(128 + SIGALRM);
+ }
if (timer_fn != SIG_IGN)
timer_fn(SIGALRM);
if (one_shot)
--
1.8.0.4.g3c6fb4f.dirty
--
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^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 2/6] mingw: make fgetc raise SIGINT if apropriate
2012-12-04 8:10 [PATCH v2 0/6] win32: support echo for terminal-prompt Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 1/6] mingw: correct exit-code for SIGALRM's SIG_DFL Erik Faye-Lund
@ 2012-12-04 8:10 ` Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 3/6] compat/terminal: factor out echo-disabling Erik Faye-Lund
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Erik Faye-Lund @ 2012-12-04 8:10 UTC (permalink / raw)
To: git; +Cc: msysgit, johannes.schindelin, gitster, peff
Set a control-handler to prevent the process from terminating, and
simulate SIGINT so it can be handled by a signal-handler as usual.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
compat/mingw.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++--------
compat/mingw.h | 6 +++++
2 files changed, 72 insertions(+), 10 deletions(-)
diff --git a/compat/mingw.c b/compat/mingw.c
index 78e8f54..33ddfdf 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -319,6 +319,31 @@ ssize_t mingw_write(int fd, const void *buf, size_t count)
return write(fd, buf, min(count, 31 * 1024 * 1024));
}
+static BOOL WINAPI ctrl_ignore(DWORD type)
+{
+ return TRUE;
+}
+
+#undef fgetc
+int mingw_fgetc(FILE *stream)
+{
+ int ch;
+ if (!isatty(_fileno(stream)))
+ return fgetc(stream);
+
+ SetConsoleCtrlHandler(ctrl_ignore, TRUE);
+ while (1) {
+ ch = fgetc(stream);
+ if (ch != EOF || GetLastError() != ERROR_OPERATION_ABORTED)
+ break;
+
+ /* Ctrl+C was pressed, simulate SIGINT and retry */
+ mingw_raise(SIGINT);
+ }
+ SetConsoleCtrlHandler(ctrl_ignore, FALSE);
+ return ch;
+}
+
#undef fopen
FILE *mingw_fopen (const char *filename, const char *otype)
{
@@ -1524,7 +1549,7 @@ static HANDLE timer_event;
static HANDLE timer_thread;
static int timer_interval;
static int one_shot;
-static sig_handler_t timer_fn = SIG_DFL;
+static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL;
/* The timer works like this:
* The thread, ticktack(), is a trivial routine that most of the time
@@ -1538,13 +1563,7 @@ static sig_handler_t timer_fn = SIG_DFL;
static unsigned __stdcall ticktack(void *dummy)
{
while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
- if (timer_fn == SIG_DFL) {
- if (isatty(STDERR_FILENO))
- fputs("Alarm clock\n", stderr);
- exit(128 + SIGALRM);
- }
- if (timer_fn != SIG_IGN)
- timer_fn(SIGALRM);
+ mingw_raise(SIGALRM);
if (one_shot)
break;
}
@@ -1635,12 +1654,49 @@ int sigaction(int sig, struct sigaction *in, struct sigaction *out)
sig_handler_t mingw_signal(int sig, sig_handler_t handler)
{
sig_handler_t old = timer_fn;
- if (sig != SIGALRM)
+
+ switch (sig) {
+ case SIGALRM:
+ timer_fn = handler;
+ break;
+
+ case SIGINT:
+ sigint_fn = handler;
+ break;
+
+ default:
return signal(sig, handler);
- timer_fn = handler;
+ }
+
return old;
}
+#undef raise
+int mingw_raise(int sig)
+{
+ switch (sig) {
+ case SIGALRM:
+ if (timer_fn == SIG_DFL) {
+ if (isatty(STDERR_FILENO))
+ fputs("Alarm clock\n", stderr);
+ exit(128 + SIGALRM);
+ } else if (timer_fn != SIG_IGN)
+ timer_fn(SIGALRM);
+ return 0;
+
+ case SIGINT:
+ if (sigint_fn == SIG_DFL)
+ exit(128 + SIGINT);
+ else if (sigint_fn != SIG_IGN)
+ sigint_fn(SIGINT);
+ return 0;
+
+ default:
+ return raise(sig);
+ }
+}
+
+
static const char *make_backslash_path(const char *path)
{
static char buf[PATH_MAX + 1];
diff --git a/compat/mingw.h b/compat/mingw.h
index 61a6521..6b9e69a 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -179,6 +179,9 @@ int mingw_open (const char *filename, int oflags, ...);
ssize_t mingw_write(int fd, const void *buf, size_t count);
#define write mingw_write
+int mingw_fgetc(FILE *stream);
+#define fgetc mingw_fgetc
+
FILE *mingw_fopen (const char *filename, const char *otype);
#define fopen mingw_fopen
@@ -287,6 +290,9 @@ static inline unsigned int git_ntohl(unsigned int x)
sig_handler_t mingw_signal(int sig, sig_handler_t handler);
#define signal mingw_signal
+int mingw_raise(int sig);
+#define raise mingw_raise
+
/*
* ANSI emulation wrappers
*/
--
1.8.0.4.g3c6fb4f.dirty
--
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^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 3/6] compat/terminal: factor out echo-disabling
2012-12-04 8:10 [PATCH v2 0/6] win32: support echo for terminal-prompt Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 1/6] mingw: correct exit-code for SIGALRM's SIG_DFL Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 2/6] mingw: make fgetc raise SIGINT if apropriate Erik Faye-Lund
@ 2012-12-04 8:10 ` Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 4/6] compat/terminal: separate input and output handles Erik Faye-Lund
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Erik Faye-Lund @ 2012-12-04 8:10 UTC (permalink / raw)
To: git; +Cc: msysgit, johannes.schindelin, gitster, peff
By moving the echo-disabling code to a separate function, we can
implement OS-specific versions of it for non-POSIX platforms.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
compat/terminal.c | 43 +++++++++++++++++++++++++------------------
1 file changed, 25 insertions(+), 18 deletions(-)
diff --git a/compat/terminal.c b/compat/terminal.c
index bbb038d..a6212ca 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c
@@ -14,6 +14,7 @@ static void restore_term(void)
return;
tcsetattr(term_fd, TCSAFLUSH, &old_term);
+ close(term_fd);
term_fd = -1;
}
@@ -24,6 +25,27 @@ static void restore_term_on_signal(int sig)
raise(sig);
}
+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;
+}
+
char *git_terminal_prompt(const char *prompt, int echo)
{
static struct strbuf buf = STRBUF_INIT;
@@ -34,24 +56,9 @@ char *git_terminal_prompt(const char *prompt, int echo)
if (!fh)
return NULL;
- if (!echo) {
- struct termios t;
-
- if (tcgetattr(fileno(fh), &t) < 0) {
- fclose(fh);
- return NULL;
- }
-
- old_term = t;
- term_fd = fileno(fh);
- sigchain_push_common(restore_term_on_signal);
-
- t.c_lflag &= ~ECHO;
- if (tcsetattr(fileno(fh), TCSAFLUSH, &t) < 0) {
- term_fd = -1;
- fclose(fh);
- return NULL;
- }
+ if (!echo && disable_echo()) {
+ fclose(fh);
+ return NULL;
}
fputs(prompt, fh);
--
1.8.0.4.g3c6fb4f.dirty
--
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^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 4/6] compat/terminal: separate input and output handles
2012-12-04 8:10 [PATCH v2 0/6] win32: support echo for terminal-prompt Erik Faye-Lund
` (2 preceding siblings ...)
2012-12-04 8:10 ` [PATCH v2 3/6] compat/terminal: factor out echo-disabling Erik Faye-Lund
@ 2012-12-04 8:10 ` Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 5/6] mingw: reuse tty-version of git_terminal_prompt Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 6/6] mingw: get rid of getpass implementation Erik Faye-Lund
5 siblings, 0 replies; 7+ messages in thread
From: Erik Faye-Lund @ 2012-12-04 8:10 UTC (permalink / raw)
To: git; +Cc: msysgit, johannes.schindelin, gitster, peff
On Windows, the terminal cannot be opened in read-write mode, so
we need distinct pairs for reading and writing. Since this works
fine on other platforms as well, always open them in pairs.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
compat/terminal.c | 29 ++++++++++++++++++-----------
1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/compat/terminal.c b/compat/terminal.c
index a6212ca..9aecad6 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c
@@ -50,29 +50,36 @@ char *git_terminal_prompt(const char *prompt, int echo)
{
static struct strbuf buf = STRBUF_INIT;
int r;
- FILE *fh;
+ FILE *input_fh, *output_fh;
- fh = fopen("/dev/tty", "w+");
- if (!fh)
+ input_fh = fopen("/dev/tty", "r");
+ if (!input_fh)
return NULL;
+ output_fh = fopen("/dev/tty", "w");
+ if (!output_fh) {
+ fclose(input_fh);
+ return NULL;
+ }
+
if (!echo && disable_echo()) {
- fclose(fh);
+ fclose(input_fh);
+ fclose(output_fh);
return NULL;
}
- fputs(prompt, fh);
- fflush(fh);
+ fputs(prompt, output_fh);
+ fflush(output_fh);
- r = strbuf_getline(&buf, fh, '\n');
+ r = strbuf_getline(&buf, input_fh, '\n');
if (!echo) {
- fseek(fh, SEEK_CUR, 0);
- putc('\n', fh);
- fflush(fh);
+ putc('\n', output_fh);
+ fflush(output_fh);
}
restore_term();
- fclose(fh);
+ fclose(input_fh);
+ fclose(output_fh);
if (r == EOF)
return NULL;
--
1.8.0.4.g3c6fb4f.dirty
--
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^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 5/6] mingw: reuse tty-version of git_terminal_prompt
2012-12-04 8:10 [PATCH v2 0/6] win32: support echo for terminal-prompt Erik Faye-Lund
` (3 preceding siblings ...)
2012-12-04 8:10 ` [PATCH v2 4/6] compat/terminal: separate input and output handles Erik Faye-Lund
@ 2012-12-04 8:10 ` Erik Faye-Lund
2012-12-04 8:10 ` [PATCH v2 6/6] mingw: get rid of getpass implementation Erik Faye-Lund
5 siblings, 0 replies; 7+ messages in thread
From: Erik Faye-Lund @ 2012-12-04 8:10 UTC (permalink / raw)
To: git; +Cc: msysgit, johannes.schindelin, gitster, peff
The getpass-implementation we use on Windows isn't at all ideal;
it works in raw-mode (as opposed to cooked mode), and as a result
does not deal correcly with deletion, arrow-keys etc.
Instead, use cooked mode to read a line at the time, allowing the
C run-time to process the input properly.
Since we set files to be opened in binary-mode by default on
Windows, introduce a FORCE_TEXT macro that expands to the "t"
modifier that forces the terminal to be opened in text-mode so we
do not have to deal with CRLF issues.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
compat/terminal.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 60 insertions(+), 9 deletions(-)
diff --git a/compat/terminal.c b/compat/terminal.c
index 9aecad6..9b5e3d1 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c
@@ -3,8 +3,22 @@
#include "sigchain.h"
#include "strbuf.h"
+#if defined(HAVE_DEV_TTY) || defined(WIN32)
+
+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;
@@ -18,13 +32,6 @@ static void restore_term(void)
term_fd = -1;
}
-static void restore_term_on_signal(int sig)
-{
- restore_term();
- sigchain_pop(sig);
- raise(sig);
-}
-
static int disable_echo(void)
{
struct termios t;
@@ -46,17 +53,61 @@ error:
return -1;
}
+#elif defined(WIN32)
+
+#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("/dev/tty", "r");
+ input_fh = fopen(INPUT_PATH, "r" FORCE_TEXT);
if (!input_fh)
return NULL;
- output_fh = fopen("/dev/tty", "w");
+ output_fh = fopen(OUTPUT_PATH, "w" FORCE_TEXT);
if (!output_fh) {
fclose(input_fh);
return NULL;
--
1.8.0.4.g3c6fb4f.dirty
--
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^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 6/6] mingw: get rid of getpass implementation
2012-12-04 8:10 [PATCH v2 0/6] win32: support echo for terminal-prompt Erik Faye-Lund
` (4 preceding siblings ...)
2012-12-04 8:10 ` [PATCH v2 5/6] mingw: reuse tty-version of git_terminal_prompt Erik Faye-Lund
@ 2012-12-04 8:10 ` Erik Faye-Lund
5 siblings, 0 replies; 7+ messages in thread
From: Erik Faye-Lund @ 2012-12-04 8:10 UTC (permalink / raw)
To: git; +Cc: msysgit, johannes.schindelin, gitster, peff
There's no remaining call-sites, and as pointed out in the
previous commit message, it's not quite ideal. So let's just
lose it.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---
compat/mingw.c | 15 ---------------
compat/mingw.h | 2 --
2 files changed, 17 deletions(-)
diff --git a/compat/mingw.c b/compat/mingw.c
index 33ddfdf..5fc14b7 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1758,21 +1758,6 @@ int link(const char *oldpath, const char *newpath)
return 0;
}
-char *getpass(const char *prompt)
-{
- struct strbuf buf = STRBUF_INIT;
-
- fputs(prompt, stderr);
- for (;;) {
- char c = _getch();
- if (c == '\r' || c == '\n')
- break;
- strbuf_addch(&buf, c);
- }
- fputs("\n", stderr);
- return strbuf_detach(&buf, NULL);
-}
-
pid_t waitpid(pid_t pid, int *status, int options)
{
HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
diff --git a/compat/mingw.h b/compat/mingw.h
index 6b9e69a..f494ecb 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -55,8 +55,6 @@ struct passwd {
char *pw_dir;
};
-extern char *getpass(const char *prompt);
-
typedef void (__cdecl *sig_handler_t)(int);
struct sigaction {
sig_handler_t sa_handler;
--
1.8.0.4.g3c6fb4f.dirty
--
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^ permalink raw reply related [flat|nested] 7+ messages in thread