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431fa8f83c
Without /dev/tty support, git_terminal_prompt simply ignores the 'echo'-parameter. On Windows we can do better by clevering up our getpass-implementation a bit so it can conditionally echo. While we're at it, plug a small memory-leak by returning a pointer to a static strbuf instead of detaching it. This is the same thing the /dev/tty-version of git_terminal_prompt does, and the callee doesn't expect to have to free it's memory. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
103 lines
1.5 KiB
C
103 lines
1.5 KiB
C
#include "git-compat-util.h"
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#include "compat/terminal.h"
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#include "sigchain.h"
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#include "strbuf.h"
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#ifdef HAVE_DEV_TTY
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static int term_fd = -1;
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static struct termios old_term;
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static void restore_term(void)
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{
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if (term_fd < 0)
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return;
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tcsetattr(term_fd, TCSAFLUSH, &old_term);
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term_fd = -1;
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}
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static void restore_term_on_signal(int sig)
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{
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restore_term();
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sigchain_pop(sig);
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raise(sig);
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}
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char *git_terminal_prompt(const char *prompt, int echo)
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{
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static struct strbuf buf = STRBUF_INIT;
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int r;
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FILE *fh;
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fh = fopen("/dev/tty", "w+");
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if (!fh)
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return NULL;
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if (!echo) {
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struct termios t;
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if (tcgetattr(fileno(fh), &t) < 0) {
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fclose(fh);
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return NULL;
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}
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old_term = t;
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term_fd = fileno(fh);
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sigchain_push_common(restore_term_on_signal);
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t.c_lflag &= ~ECHO;
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if (tcsetattr(fileno(fh), TCSAFLUSH, &t) < 0) {
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term_fd = -1;
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fclose(fh);
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return NULL;
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}
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}
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fputs(prompt, fh);
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fflush(fh);
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r = strbuf_getline(&buf, fh, '\n');
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if (!echo) {
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fseek(fh, SEEK_CUR, 0);
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putc('\n', fh);
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fflush(fh);
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}
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restore_term();
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fclose(fh);
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if (r == EOF)
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return NULL;
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return buf.buf;
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}
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#elif defined(WIN32)
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char *git_terminal_prompt(const char *prompt, int echo)
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{
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static struct strbuf buf = STRBUF_INIT;
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fputs(prompt, stderr);
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strbuf_reset(&buf);
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for (;;) {
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int c = _getch();
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if (c == '\n' || c == '\r')
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break;
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if (echo)
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putc(c, stderr);
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strbuf_addch(&buf, c);
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}
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putc('\n', stderr);
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return buf.buf;
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}
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#else
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char *git_terminal_prompt(const char *prompt, int echo)
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{
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return getpass(prompt);
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}
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#endif
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