Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2#include "config.h"
   3#include "run-command.h"
   4#include "strbuf.h"
   5#include "prompt.h"
   6#include "compat/terminal.h"
   7
   8static char *do_askpass(const char *cmd, const char *prompt)
   9{
  10        struct child_process pass = CHILD_PROCESS_INIT;
  11        const char *args[3];
  12        static struct strbuf buffer = STRBUF_INIT;
  13        int err = 0;
  14
  15        args[0] = cmd;
  16        args[1] = prompt;
  17        args[2] = NULL;
  18
  19        pass.argv = args;
  20        pass.out = -1;
  21
  22        if (start_command(&pass))
  23                return NULL;
  24
  25        strbuf_reset(&buffer);
  26        if (strbuf_read(&buffer, pass.out, 20) < 0)
  27                err = 1;
  28
  29        close(pass.out);
  30
  31        if (finish_command(&pass))
  32                err = 1;
  33
  34        if (err) {
  35                error("unable to read askpass response from '%s'", cmd);
  36                strbuf_release(&buffer);
  37                return NULL;
  38        }
  39
  40        strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
  41
  42        return buffer.buf;
  43}
  44
  45char *git_prompt(const char *prompt, int flags)
  46{
  47        char *r = NULL;
  48
  49        if (flags & PROMPT_ASKPASS) {
  50                const char *askpass;
  51
  52                askpass = getenv("GIT_ASKPASS");
  53                if (!askpass)
  54                        askpass = askpass_program;
  55                if (!askpass)
  56                        askpass = getenv("SSH_ASKPASS");
  57                if (askpass && *askpass)
  58                        r = do_askpass(askpass, prompt);
  59        }
  60
  61        if (!r) {
  62                const char *err;
  63
  64                if (git_env_bool("GIT_TERMINAL_PROMPT", 1)) {
  65                        r = git_terminal_prompt(prompt, flags & PROMPT_ECHO);
  66                        err = strerror(errno);
  67                } else {
  68                        err = "terminal prompts disabled";
  69                }
  70                if (!r) {
  71                        /* prompts already contain ": " at the end */
  72                        die("could not read %s%s", prompt, err);
  73                }
  74        }
  75        return r;
  76}