Andrew's git / gitweb.git /
20026444c018d0358d6dfbeecb23df3f021bc4ce
   1#include "cache.h"
   2#include "run-command.h"
   3#include "strbuf.h"
   4#include "prompt.h"
   5
   6static char *do_askpass(const char *cmd, const char *prompt)
   7{
   8        struct child_process pass;
   9        const char *args[3];
  10        static struct strbuf buffer = STRBUF_INIT;
  11
  12        args[0] = cmd;
  13        args[1] = prompt;
  14        args[2] = NULL;
  15
  16        memset(&pass, 0, sizeof(pass));
  17        pass.argv = args;
  18        pass.out = -1;
  19
  20        if (start_command(&pass))
  21                exit(1);
  22
  23        strbuf_reset(&buffer);
  24        if (strbuf_read(&buffer, pass.out, 20) < 0)
  25                die("failed to get '%s' from %s\n", prompt, cmd);
  26
  27        close(pass.out);
  28
  29        if (finish_command(&pass))
  30                exit(1);
  31
  32        strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
  33
  34        return buffer.buf;
  35}
  36
  37char *git_prompt(const char *prompt, int flags)
  38{
  39        char *r;
  40
  41        if (flags & PROMPT_ASKPASS) {
  42                const char *askpass;
  43
  44                askpass = getenv("GIT_ASKPASS");
  45                if (!askpass)
  46                        askpass = askpass_program;
  47                if (!askpass)
  48                        askpass = getenv("SSH_ASKPASS");
  49                if (askpass && *askpass)
  50                        return do_askpass(askpass, prompt);
  51        }
  52
  53        r = getpass(prompt);
  54        if (!r)
  55                die_errno("could not read '%s'", prompt);
  56        return r;
  57}
  58
  59char *git_getpass(const char *prompt)
  60{
  61        return git_prompt(prompt, PROMPT_ASKPASS);
  62}