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1 | #include "cache.h" | |
2 | #include "run-command.h" | |
3 | #include "strbuf.h" | |
4 | #include "prompt.h" | |
5 | #include "compat/terminal.h" | |
6 | ||
7 | static char *do_askpass(const char *cmd, const char *prompt) | |
8 | { | |
9 | struct child_process pass; | |
10 | const char *args[3]; | |
11 | static struct strbuf buffer = STRBUF_INIT; | |
12 | int err = 0; | |
13 | ||
14 | args[0] = cmd; | |
15 | args[1] = prompt; | |
16 | args[2] = NULL; | |
17 | ||
18 | memset(&pass, 0, sizeof(pass)); | |
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 | ||
45 | char *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 | r = git_terminal_prompt(prompt, flags & PROMPT_ECHO); | |
63 | if (!r) { | |
64 | /* prompts already contain ": " at the end */ | |
65 | die("could not read %s%s", prompt, strerror(errno)); | |
66 | } | |
67 | return r; | |
68 | } | |
69 | ||
70 | char *git_getpass(const char *prompt) | |
71 | { | |
72 | return git_prompt(prompt, PROMPT_ASKPASS); | |
73 | } |