git/prompt.c
Jeff King a50902590e prompt: use git_terminal_prompt
Our custom implementation of git_terminal_prompt has many
advantages over regular getpass(), as described in the prior
commit.

This also lets us implement a PROMPT_ECHO flag for callers
who want it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:09:38 -08:00

64 lines
1.2 KiB
C

#include "cache.h"
#include "run-command.h"
#include "strbuf.h"
#include "prompt.h"
#include "compat/terminal.h"
static char *do_askpass(const char *cmd, const char *prompt)
{
struct child_process pass;
const char *args[3];
static struct strbuf buffer = STRBUF_INIT;
args[0] = cmd;
args[1] = prompt;
args[2] = NULL;
memset(&pass, 0, sizeof(pass));
pass.argv = args;
pass.out = -1;
if (start_command(&pass))
exit(1);
strbuf_reset(&buffer);
if (strbuf_read(&buffer, pass.out, 20) < 0)
die("failed to get '%s' from %s\n", prompt, cmd);
close(pass.out);
if (finish_command(&pass))
exit(1);
strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
return buffer.buf;
}
char *git_prompt(const char *prompt, int flags)
{
char *r;
if (flags & PROMPT_ASKPASS) {
const char *askpass;
askpass = getenv("GIT_ASKPASS");
if (!askpass)
askpass = askpass_program;
if (!askpass)
askpass = getenv("SSH_ASKPASS");
if (askpass && *askpass)
return do_askpass(askpass, prompt);
}
r = git_terminal_prompt(prompt, flags & PROMPT_ECHO);
if (!r)
die_errno("could not read '%s'", prompt);
return r;
}
char *git_getpass(const char *prompt)
{
return git_prompt(prompt, PROMPT_ASKPASS);
}