398 lines
11 KiB
C
398 lines
11 KiB
C
/*
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* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software
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* is freely granted, provided that this notice is preserved.
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*
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* Tests gleaned from Markus Kuhn's UTF-8 and Unicode FAQ,
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* and specifically, his UTF-8-test.txt decoder stress test file.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <locale.h>
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#define MAX_BYTES 65
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int num_invalid(const char *s, int len);
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char first[6][6] = {
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{0x0}, /* U-00000000 */
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{0xc2, 0x80}, /* U-00000080 */
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{0xe0, 0xa0, 0x80}, /* U-00000800 */
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{0xf0, 0x90, 0x80, 0x80}, /* U-00010000 */
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{0xf8, 0x88, 0x80, 0x80, 0x80}, /* U-00200000 */
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{0xfc, 0x84, 0x80, 0x80, 0x80, 0x80} /* U-04000000 */
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};
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char last[6][6] = {
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{0x7f}, /* U-0000007F */
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{0xdf, 0xbf}, /* U-000007FF */
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{0xef, 0xbf, 0xbf}, /* U-0000FFFF */
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{0xf7, 0xbf, 0xbf, 0xbf}, /* U-001FFFFF */
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{0xfb, 0xbf, 0xbf, 0xbf, 0xbf}, /* U-03FFFFFF */
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{0xfd, 0xbf, 0xbf, 0xbf, 0xbf, 0xbf} /* U-7FFFFFFF */
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};
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char boundary[5][6] = {
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{0xed, 0x9f, 0xbf}, /* U-0000D7FF */
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{0xee, 0x80, 0x80}, /* U-0000E000 */
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{0xef, 0xbf, 0xbd}, /* U-0000FFFD */
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{0xf4, 0x8f, 0xbf, 0xbf}, /* U-0010FFFF */
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{0xf4, 0x90, 0x80, 0x80} /* U-00110000 */
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};
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char continuation_bytes[8][7] = {
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{0x80},
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{0xbf},
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{0x80, 0xbf},
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{0x80, 0xbf, 0x80},
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{0x80, 0xbf, 0x80, 0xbf},
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{0x80, 0xbf, 0x80, 0xbf, 0x80},
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{0x80, 0xbf, 0x80, 0xbf, 0x80, 0xbf},
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{0x80, 0xbf, 0x80, 0xbf, 0x80, 0xbf, 0x80}
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};
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char all_continuation_bytes[64];
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char all_two_byte_seq[32];
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char all_three_byte_seq[16];
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char all_four_byte_seq[8];
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char all_five_byte_seq[4];
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char all_six_byte_seq[2];
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char incomplete_seq[10][6] = {
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{0xc2}, /* U-00000080 */
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{0xe0, 0x80}, /* U-00000800 */
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{0xf0, 0x80, 0x80}, /* U-00010000 */
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{0xf8, 0x80, 0x80, 0x80}, /* U-00200000 */
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{0xfc, 0x80, 0x80, 0x80, 0x80}, /* U-04000000 */
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{0xdf}, /* U-000007FF */
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{0xef, 0xbf}, /* U-0000FFFF */
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{0xf7, 0xbf, 0xbf}, /* U-001FFFFF */
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{0xfb, 0xbf, 0xbf, 0xbf}, /* U-03FFFFFF */
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{0xfd, 0xbf, 0xbf, 0xbf, 0xbf} /* U-7FFFFFFF */
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};
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char incomplete_seq_concat[30];
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char impossible_bytes[3][4] = {
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{0xfe},
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{0xff},
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{0xfe, 0xfe, 0xff, 0xff}
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};
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char overlong[5][6] = {
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{0xc0, 0xaf},
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{0xe0, 0x80, 0xaf},
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{0xf0, 0x80, 0x80, 0xaf},
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{0xf8, 0x80, 0x80, 0x80, 0xaf},
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{0xfc, 0x80, 0x80, 0x80, 0x80, 0xaf}
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};
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char overlong_max[5][6] = {
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{0xc1, 0xbf},
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{0xe0, 0x9f, 0xbf},
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{0xf0, 0x8f, 0xbf, 0xbf},
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{0xf8, 0x87, 0xbf, 0xbf, 0xbf},
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{0xfc, 0x83, 0xbf, 0xbf, 0xbf, 0xbf}
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};
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char overlong_nul[5][6] = {
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{0xc0, 0x80},
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{0xe0, 0x80, 0x80},
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{0xf0, 0x80, 0x80, 0x80},
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{0xf8, 0x80, 0x80, 0x80, 0x80},
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{0xfc, 0x80, 0x80, 0x80, 0x80, 0x80}
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};
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char single_surrogates[7][3] = {
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{0xed, 0xa0, 0x80},
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{0xed, 0xad, 0xbf},
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{0xed, 0xae, 0x80},
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{0xed, 0xaf, 0xbf},
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{0xed, 0xb0, 0x80},
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{0xed, 0xbe, 0x80},
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{0xed, 0xbf, 0xbf}
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};
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char paired_surrogates[8][6] = {
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{0xed, 0xa0, 0x80, 0xed, 0xb0, 0x80},
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{0xed, 0xa0, 0x80, 0xed, 0xbf, 0xbf},
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{0xed, 0xad, 0xbf, 0xed, 0xb0, 0x80},
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{0xed, 0xad, 0xbf, 0xed, 0xbf, 0xbf},
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{0xed, 0xae, 0x80, 0xed, 0xb0, 0x80},
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{0xed, 0xae, 0x80, 0xed, 0xbf, 0xbf},
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{0xed, 0xaf, 0xbf, 0xed, 0xb0, 0x80},
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{0xed, 0xaf, 0xbf, 0xed, 0xbf, 0xbf}
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};
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char illegal_pos[2][3] = {
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{0xff, 0xfe},
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{0xff, 0xff}
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};
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int main()
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{
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wchar_t wchar;
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int retval;
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int i;
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if (!setlocale(LC_CTYPE, "C-UTF-8"))
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{
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printf("Failed to set C-UTF-8 locale.\n");
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return 1;
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}
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else
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printf("Set C-UTF-8 locale.\n");
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/* 2 Boundary condition test cases */
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/* 2.1 First possible sequence of a certain length */
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retval = mbtowc(&wchar, first[0], MAX_BYTES);
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if (retval == 0)
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printf("2.1.1: U-%08d\n", wchar);
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else
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printf("2.1.1: Invalid\n");
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for (i = 2; i < 7; i++)
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{
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retval = mbtowc (&wchar, first[i-1], MAX_BYTES);
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if (retval == i)
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printf("2.1.%d: U-%08x\n", i, wchar);
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else
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printf("2.1.%d: Invalid\n", i);
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}
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/* 2.2 Last possible sequence of a certain length */
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for (i = 1; i < 7; i++)
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{
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retval = mbtowc (&wchar, last[i-1], MAX_BYTES);
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if (retval == i)
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printf("2.2.%d: U-%08x\n", i, wchar);
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else
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printf("2.2.%d: Invalid\n", i);
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}
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/* 2.3 Other boundary conditions */
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for (i = 1; i < 6; i++)
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{
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retval = mbtowc (&wchar, boundary[i-1], MAX_BYTES);
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if ((i < 4 && retval == 3) || (i > 3 && retval == 4))
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printf("2.3.%d: U-%08x\n", i, wchar);
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else
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printf("2.3.%d: Invalid\n", i);
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}
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/* 3 Malformed sequences */
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/* 3.1 Unexpected continuation bytes */
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retval = mbtowc (&wchar, continuation_bytes[0], MAX_BYTES);
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if (retval == 1)
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printf("3.1.1: U-%08x\n", wchar);
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else
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printf("3.1.1: 1 Invalid\n");
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retval = mbtowc (&wchar, continuation_bytes[1], MAX_BYTES);
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if (retval == 1)
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printf("3.1.2: U-%08x\n", wchar);
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else
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printf("3.1.2: 1 Invalid\n");
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for(i=2; i< 8; i++)
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{
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retval = num_invalid(continuation_bytes[i], i);
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if (retval == -1)
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printf("3.1.%d: Valid Character Found\n", i+1);
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else
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printf("3.1.%d: %d Invalid\n", i+1, retval);
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}
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for(i = 0x80; i < 0xc0; i++)
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all_continuation_bytes[i-0x80] = i;
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retval = num_invalid(all_continuation_bytes, 0xc0 - 0x80);
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if (retval == -1)
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printf("3.1.9: Valid Character Found\n");
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else
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printf("3.1.9: %d Invalid\n", retval);
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/* 3.2 Lonely start characters */
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for(i = 0xc0; i < 0xe0; i++)
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all_two_byte_seq[i-0xc0] = i;
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retval = num_invalid(all_two_byte_seq, 0xe0 - 0xc0);
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if (retval == -1)
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printf("3.2.1: Valid Character Found\n");
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else
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printf("3.2.1: %d Invalid\n", retval);
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for(i = 0xe0; i < 0xf0; i++)
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all_three_byte_seq[i-0xe0] = i;
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retval = num_invalid(all_three_byte_seq, 0xf0 - 0xe0);
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if (retval == -1)
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printf("3.2.2: Valid Character Found\n");
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else
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printf("3.2.2: %d Invalid\n", retval);
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for(i = 0xf0; i < 0xf8; i++)
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all_four_byte_seq[i-0xf0] = i;
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retval = num_invalid(all_four_byte_seq, 0xf8 - 0xf0);
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if (retval == -1)
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printf("3.2.3: Valid Character Found\n");
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else
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printf("3.2.3: %d Invalid\n", retval);
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for(i = 0xf8; i < 0xfc; i++)
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all_five_byte_seq[i-0xf8] = i;
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retval = num_invalid(all_five_byte_seq, 0xfc - 0xf8);
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if (retval == -1)
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printf("3.2.4: Valid Character Found\n");
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else
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printf("3.2.4: %d Invalid\n", retval);
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for(i = 0xfc; i < 0xfe; i++)
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all_six_byte_seq[i-0xfc] = i;
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retval = num_invalid(all_six_byte_seq, 0xfe - 0xfc);
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if (retval == -1)
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printf("3.2.5: Valid Character Found\n");
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else
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printf("3.2.5: %d Invalid\n", retval);
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/* 3.3 Sequences with last continuation byte missing */
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for(i = 1; i < 6; i++)
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{
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retval = mbtowc(&wchar, incomplete_seq[i-1], i);
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if(retval == -1)
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printf("3.3.%d: 1 Invalid\n", i);
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else
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printf("3.3.%d: Valid Character Found\n", i);
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}
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for(i = 6; i < 11; i++)
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{
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retval = mbtowc(&wchar, incomplete_seq[i-1], i - 5);
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if(retval == -1)
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printf("3.3.%d: 1 Invalid\n", i);
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else
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printf("3.3.%d: Valid Character Found\n", i);
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}
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/* 3.4 Concatenation of incomplete sequences */
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/* This test is excluded because the mbtowc function does not return the
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number of bytes read in an invalid multi-byte sequence. */
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/* 3.5 Impossible bytes */
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retval = mbtowc(&wchar, impossible_bytes[0], 1);
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if(retval == -1)
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printf("3.5.1: 1 Invalid\n");
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else
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printf("3.5.1: Valid Character Found\n");
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retval = mbtowc(&wchar, impossible_bytes[1], 1);
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if(retval == -1)
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printf("3.5.2: 1 Invalid\n");
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else
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printf("3.5.2: Valid Character Found\n");
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retval = mbtowc(&wchar, impossible_bytes[2], 4);
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if(retval == -1)
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printf("3.5.3: 1 Invalid\n");
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else
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printf("3.5.3: Valid Character Found\n");
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/* 4 Overlong sequences */
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/* 4.1 Examples of an overlong ASCII character */
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for(i = 2; i < 7; i++)
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{
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retval = mbtowc(&wchar, overlong[i-2], i);
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if(retval == -1)
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printf("4.1.%d: 1 Invalid\n", i-1);
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else
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printf("4.1.%d: Valid Character Found\n", i-1);
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}
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/* 4.2 Maximum overlong sequences */
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for(i = 2; i < 7; i++)
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{
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retval = mbtowc(&wchar, overlong_max[i-2], i);
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if(retval == -1)
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printf("4.2.%d: 1 Invalid\n", i-1);
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else
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printf("4.2.%d: Valid Character Found\n", i-1);
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}
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/* 4.3 Overlong representation of the NUL character */
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for(i = 2; i < 7; i++)
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{
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retval = mbtowc(&wchar, overlong_nul[i-2], i);
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if(retval == -1)
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printf("4.3.%d: 1 Invalid\n", i-1);
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else
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printf("4.3.%d: Valid Character Found\n", i-1);
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}
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/* 5 Illegal code positions */
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/* 5.1 Single UTF-16 surrogates */
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for (i = 1; i < 8; i++)
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{
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retval = mbtowc(&wchar, single_surrogates[i-1], 3);
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if(retval == -1)
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printf("5.1.%d: 1 Invalid\n", i);
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else
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printf("5.1.%d: Valid Character Found\n", i);
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}
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/* 5.2 Paired UTF-16 surrogates */
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for (i = 1; i < 8; i++)
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{
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retval = mbtowc(&wchar, paired_surrogates[i-1], 6);
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if(retval == -1)
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printf("5.2.%d: 1 Invalid\n", i);
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else
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printf("5.2.%d: Valid Character Found\n", i);
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}
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/* 5.3 Other illegal code positions */
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retval = mbtowc(&wchar, illegal_pos[0], 3);
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if(retval == -1)
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printf("5.3.1: 1 Invalid\n");
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else
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printf("5.3.1: Valid Character Found\n");
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retval = mbtowc(&wchar, illegal_pos[1], 3);
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if(retval == -1)
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printf("5.3.2: 1 Invalid\n");
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else
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printf("5.3.2: Valid Character Found\n");
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return 0;
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}
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/* return number of invalid characters in string,
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returns -1 if a valid character is found */
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int
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num_invalid(const char *s, int len)
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{
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int retval = 0;
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int i = 0;
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int num_inv = 0;
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wchar_t wchar;
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const char *t;
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t = s;
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for(i=0; i<len; t++, i++)
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{
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retval = mbtowc (&wchar, t, len - i);
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if(retval == -1)
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num_inv++;
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else
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return -1;
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}
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return num_inv;
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}
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