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67fe735653
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> Signed-off-by: Junio C Hamano <gitster@pobox.com>
97 lines
1.5 KiB
C
97 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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close(term_fd);
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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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static int disable_echo(void)
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{
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struct termios t;
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term_fd = open("/dev/tty", O_RDWR);
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if (tcgetattr(term_fd, &t) < 0)
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goto error;
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old_term = t;
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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(term_fd, TCSAFLUSH, &t))
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return 0;
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error:
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close(term_fd);
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term_fd = -1;
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return -1;
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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 *input_fh, *output_fh;
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input_fh = fopen("/dev/tty", "r");
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if (!input_fh)
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return NULL;
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output_fh = fopen("/dev/tty", "w");
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if (!output_fh) {
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fclose(input_fh);
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return NULL;
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}
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if (!echo && disable_echo()) {
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fclose(input_fh);
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fclose(output_fh);
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return NULL;
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}
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fputs(prompt, output_fh);
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fflush(output_fh);
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r = strbuf_getline(&buf, input_fh, '\n');
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if (!echo) {
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putc('\n', output_fh);
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fflush(output_fh);
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}
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restore_term();
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fclose(input_fh);
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fclose(output_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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#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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