git/prompt.c

73 lines
1.4 KiB
C
Raw Normal View History

#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;
int err = 0;
args[0] = cmd;
args[1] = prompt;
args[2] = NULL;
memset(&pass, 0, sizeof(pass));
pass.argv = args;
pass.out = -1;
if (start_command(&pass))
return NULL;
if (strbuf_read(&buffer, pass.out, 20) < 0)
err = 1;
close(pass.out);
if (finish_command(&pass))
err = 1;
if (err) {
error("unable to read askpass response from '%s'", cmd);
strbuf_release(&buffer);
return NULL;
}
strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
return strbuf_detach(&buffer, NULL);
}
char *git_prompt(const char *prompt, int flags)
{
char *r = NULL;
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)
r = do_askpass(askpass, prompt);
}
if (!r)
r = git_terminal_prompt(prompt, flags & PROMPT_ECHO);
if (!r) {
/* prompts already contain ": " at the end */
die("could not read %s%s", prompt, strerror(errno));
}
return r;
}
char *git_getpass(const char *prompt)
{
return git_prompt(prompt, PROMPT_ASKPASS);
}