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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #include |
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| 3 | #include |
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| 4 | #include |
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| 5 | |||
| 6 | int |
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| 7 | getlongpass(const char *prompt, char *password, int max_length) |
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| 8 | { |
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| 9 | char *p = password; |
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| 10 | int c, count = 0; |
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| 11 | |||
| 12 | fflush(stdout); |
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| 13 | /* If we can't prompt, abort */ |
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| 14 | if (fputs(prompt, stderr) < 0) |
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| 15 | { |
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| 16 | *p = '\0'; |
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| 17 | return -1; |
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| 18 | } |
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| 19 | |||
| 20 | while (1) |
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| 21 | { |
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| 22 | /* Get a character with no echo */ |
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| 23 | c = getkey(); |
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| 24 | |||
| 25 | /* Exit on interrupt (^c or ^break) */ |
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| 26 | if (c == '\003' || c == 0x100) |
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| 27 | exit(1); |
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| 28 | |||
| 29 | /* Terminate on end of line or file (^j, ^m, ^d, ^z) */ |
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| 30 | if (c == '\r' || c == '\n' || c == '\004' || c == '\032') |
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| 31 | break; |
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| 32 | |||
| 33 | /* Back up on backspace */ |
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| 34 | if (c == '\b') |
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| 35 | { |
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| 36 | if (count) |
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| 37 | count--; |
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| 38 | else if (p > password) |
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| 39 | p--; |
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| 40 | continue; |
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| 41 | } |
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| 42 | |||
| 43 | /* Ignore DOS extended characters */ |
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| 44 | if ((c & 0xff) != c) |
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| 45 | continue; |
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| 46 | |||
| 47 | /* Add to password if it isn't full */ |
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| 48 | if (p < password + max_length - 1) |
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| 49 | *p++ = c; |
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| 50 | else |
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| 51 | count++; |
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| 52 | } |
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| 53 | *p = '\0'; |
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| 54 | |||
| 55 | fputc('\n', stderr); |
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| 56 | |||
| 57 | return 0; |
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| 58 | } |