| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <ctype.h> |
| 4 | |
| 5 | #include <time.h> |
| 6 | #include "putty.h" |
| 7 | #include "misc.h" |
| 8 | |
| 9 | /* |
| 10 | * Unix Unicode-handling routines. |
| 11 | * |
| 12 | * FIXME: currently trivial stub versions assuming all codepages |
| 13 | * are ISO8859-1. |
| 14 | */ |
| 15 | |
| 16 | void lpage_send(int codepage, char *buf, int len, int interactive) |
| 17 | { |
| 18 | ldisc_send(buf, len, interactive); |
| 19 | } |
| 20 | |
| 21 | void luni_send(wchar_t * widebuf, int len, int interactive) |
| 22 | { |
| 23 | static char *linebuffer = 0; |
| 24 | static int linesize = 0; |
| 25 | int ratio = (in_utf)?6:1; |
| 26 | int i; |
| 27 | char *p; |
| 28 | |
| 29 | if (len * ratio > linesize) { |
| 30 | sfree(linebuffer); |
| 31 | linebuffer = smalloc(len * ratio * 2 * sizeof(wchar_t)); |
| 32 | linesize = len * ratio * 2; |
| 33 | } |
| 34 | |
| 35 | if (in_utf) { |
| 36 | /* UTF is a simple algorithm */ |
| 37 | for (p = linebuffer, i = 0; i < len; i++) { |
| 38 | wchar_t ch = widebuf[i]; |
| 39 | |
| 40 | if ((ch&0xF800) == 0xD800) ch = '.'; |
| 41 | |
| 42 | if (ch < 0x80) { |
| 43 | *p++ = (char) (ch); |
| 44 | } else if (ch < 0x800) { |
| 45 | *p++ = (0xC0 | (ch >> 6)); |
| 46 | *p++ = (0x80 | (ch & 0x3F)); |
| 47 | } else if (ch < 0x10000) { |
| 48 | *p++ = (0xE0 | (ch >> 12)); |
| 49 | *p++ = (0x80 | ((ch >> 6) & 0x3F)); |
| 50 | *p++ = (0x80 | (ch & 0x3F)); |
| 51 | } else if (ch < 0x200000) { |
| 52 | *p++ = (0xF0 | (ch >> 18)); |
| 53 | *p++ = (0x80 | ((ch >> 12) & 0x3F)); |
| 54 | *p++ = (0x80 | ((ch >> 6) & 0x3F)); |
| 55 | *p++ = (0x80 | (ch & 0x3F)); |
| 56 | } else if (ch < 0x4000000) { |
| 57 | *p++ = (0xF8 | (ch >> 24)); |
| 58 | *p++ = (0x80 | ((ch >> 18) & 0x3F)); |
| 59 | *p++ = (0x80 | ((ch >> 12) & 0x3F)); |
| 60 | *p++ = (0x80 | ((ch >> 6) & 0x3F)); |
| 61 | *p++ = (0x80 | (ch & 0x3F)); |
| 62 | } else { |
| 63 | *p++ = (0xFC | (ch >> 30)); |
| 64 | *p++ = (0x80 | ((ch >> 24) & 0x3F)); |
| 65 | *p++ = (0x80 | ((ch >> 18) & 0x3F)); |
| 66 | *p++ = (0x80 | ((ch >> 12) & 0x3F)); |
| 67 | *p++ = (0x80 | ((ch >> 6) & 0x3F)); |
| 68 | *p++ = (0x80 | (ch & 0x3F)); |
| 69 | } |
| 70 | } |
| 71 | } else { |
| 72 | for (p = linebuffer, i = 0; i < len; i++) { |
| 73 | wchar_t ch = widebuf[i]; |
| 74 | if (ch < 0x100) |
| 75 | *p++ = (char) ch; |
| 76 | else |
| 77 | *p++ = '.'; |
| 78 | } |
| 79 | } |
| 80 | if (p > linebuffer) |
| 81 | ldisc_send(linebuffer, p - linebuffer, interactive); |
| 82 | } |
| 83 | |
| 84 | int is_dbcs_leadbyte(int codepage, char byte) |
| 85 | { |
| 86 | return 0; /* we don't do DBCS */ |
| 87 | } |
| 88 | |
| 89 | int mb_to_wc(int codepage, int flags, char *mbstr, int mblen, |
| 90 | wchar_t *wcstr, int wclen) |
| 91 | { |
| 92 | int ret = 0; |
| 93 | while (mblen > 0 && wclen > 0) { |
| 94 | *wcstr++ = (unsigned char) *mbstr++; |
| 95 | mblen--, wclen--, ret++; |
| 96 | } |
| 97 | return ret; /* FIXME: check error codes! */ |
| 98 | } |
| 99 | |
| 100 | int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen, |
| 101 | char *mbstr, int mblen, char *defchr, int *defused) |
| 102 | { |
| 103 | int ret = 0; |
| 104 | if (defused) |
| 105 | *defused = 0; |
| 106 | while (mblen > 0 && wclen > 0) { |
| 107 | if (*wcstr >= 0x100) { |
| 108 | if (defchr) |
| 109 | *mbstr++ = *defchr; |
| 110 | else |
| 111 | *mbstr++ = '\xBF'; |
| 112 | if (defused) |
| 113 | *defused = 1; |
| 114 | } else |
| 115 | *mbstr++ = (unsigned char) *wcstr; |
| 116 | wcstr++; |
| 117 | mblen--, wclen--, ret++; |
| 118 | } |
| 119 | return ret; /* FIXME: check error codes! */ |
| 120 | } |
| 121 | |
| 122 | void init_ucs(void) |
| 123 | { |
| 124 | int i; |
| 125 | /* Find the line control characters. FIXME: this is not right. */ |
| 126 | for (i = 0; i < 256; i++) |
| 127 | if (i < ' ' || (i >= 0x7F && i < 0xA0)) |
| 128 | unitab_ctrl[i] = i; |
| 129 | else |
| 130 | unitab_ctrl[i] = 0xFF; |
| 131 | |
| 132 | for (i = 0; i < 256; i++) { |
| 133 | unitab_line[i] = unitab_scoacs[i] = i; |
| 134 | unitab_xterm[i] = (i+1) & 0x1F; |
| 135 | } |
| 136 | } |