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Diffstat (limited to 'compat/terminal.c')
-rw-r--r--compat/terminal.c129
1 files changed, 97 insertions, 32 deletions
diff --git a/compat/terminal.c b/compat/terminal.c
index bbb038dd01..9b5e3d1bb8 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;
@@ -14,58 +28,109 @@ static void restore_term(void)
return;
tcsetattr(term_fd, TCSAFLUSH, &old_term);
+ close(term_fd);
term_fd = -1;
}
-static void restore_term_on_signal(int sig)
+static int disable_echo(void)
{
- restore_term();
- sigchain_pop(sig);
- raise(sig);
+ 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(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 *fh;
+ FILE *input_fh, *output_fh;
- fh = fopen("/dev/tty", "w+");
- if (!fh)
+ input_fh = fopen(INPUT_PATH, "r" FORCE_TEXT);
+ if (!input_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;
- }
+ 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, 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;