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-rw-r--r--gnulib-tests/test-mbrtowc.c391
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diff --git a/gnulib-tests/test-mbrtowc.c b/gnulib-tests/test-mbrtowc.c
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+/* Test of conversion of multibyte character to wide character.
+ Copyright (C) 2008-2023 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008. */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (mbrtowc, size_t, (wchar_t *, char const *, size_t,
+ mbstate_t *));
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+ mbstate_t state;
+ wchar_t wc;
+ size_t ret;
+
+ /* configure should already have checked that the locale is supported. */
+ if (setlocale (LC_ALL, "") == NULL)
+ return 1;
+
+ /* Test zero-length input. */
+ {
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, "x", 0, &state);
+ ASSERT (ret == (size_t)(-2));
+ ASSERT (mbsinit (&state));
+ }
+
+ /* Test NUL byte input. */
+ {
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, "", 1, &state);
+ ASSERT (ret == 0);
+ ASSERT (wc == 0);
+ ASSERT (mbsinit (&state));
+ ret = mbrtowc (NULL, "", 1, &state);
+ ASSERT (ret == 0);
+ ASSERT (mbsinit (&state));
+ }
+
+ /* Test single-byte input. */
+ {
+ int c;
+ char buf[1];
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ for (c = 0; c < 0x100; c++)
+ switch (c)
+ {
+ case '\t': case '\v': case '\f':
+ case ' ': case '!': case '"': case '#': case '%':
+ case '&': case '\'': case '(': case ')': case '*':
+ case '+': case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>':
+ case '?':
+ case 'A': case 'B': case 'C': case 'D': case 'E':
+ case 'F': case 'G': case 'H': case 'I': case 'J':
+ case 'K': case 'L': case 'M': case 'N': case 'O':
+ case 'P': case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X': case 'Y':
+ case 'Z':
+ case '[': case '\\': case ']': case '^': case '_':
+ case 'a': case 'b': case 'c': case 'd': case 'e':
+ case 'f': case 'g': case 'h': case 'i': case 'j':
+ case 'k': case 'l': case 'm': case 'n': case 'o':
+ case 'p': case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x': case 'y':
+ case 'z': case '{': case '|': case '}': case '~':
+ /* c is in the ISO C "basic character set". */
+ ASSERT (c < 0x80);
+ /* c is an ASCII character. */
+ buf[0] = c;
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, buf, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == c);
+ ASSERT (mbsinit (&state));
+
+ ret = mbrtowc (NULL, buf, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (mbsinit (&state));
+
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Test special calling convention, passing a NULL pointer. */
+ {
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, NULL, 5, &state);
+ ASSERT (ret == 0);
+ ASSERT (wc == (wchar_t) 0xBADFACE);
+ ASSERT (mbsinit (&state));
+ }
+
+#ifdef __ANDROID__
+ /* On Android ≥ 5.0, the default locale is the "C.UTF-8" locale, not the
+ "C" locale. Furthermore, when you attempt to set the "C" or "POSIX"
+ locale via setlocale(), what you get is a "C" locale with UTF-8 encoding,
+ that is, effectively the "C.UTF-8" locale. */
+ if (argc > 1 && strcmp (argv[1], "1") == 0 && MB_CUR_MAX > 1)
+ argv[1] = "3";
+#endif
+
+ if (argc > 1)
+ switch (argv[1][0])
+ {
+ case '1':
+ /* C or POSIX locale. */
+ {
+ int c;
+ char buf[1];
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ for (c = 0; c < 0x100; c++)
+ if (c != 0)
+ {
+ /* We are testing all nonnull bytes. */
+ buf[0] = c;
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, buf, 1, &state);
+ /* POSIX:2018 says: "In the POSIX locale an [EILSEQ] error
+ cannot occur since all byte values are valid characters." */
+ ASSERT (ret == 1);
+ if (c < 0x80)
+ /* c is an ASCII character. */
+ ASSERT (wc == c);
+ else
+ /* On most platforms, the bytes 0x80..0xFF map to U+0080..U+00FF.
+ But on musl libc, the bytes 0x80..0xFF map to U+DF80..U+DFFF. */
+ ASSERT (wc == (btowc (c) == 0xDF00 + c ? btowc (c) : c));
+ ASSERT (mbsinit (&state));
+
+ ret = mbrtowc (NULL, buf, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (mbsinit (&state));
+ }
+ }
+ return 0;
+
+ case '2':
+ /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
+ {
+ char input[] = "B\374\337er"; /* "Büßer" */
+ memset (&state, '\0', sizeof (mbstate_t));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'B');
+ ASSERT (mbsinit (&state));
+ input[0] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 1, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wctob (wc) == (unsigned char) '\374');
+ ASSERT (mbsinit (&state));
+ input[1] = '\0';
+
+ /* Test support of NULL first argument. */
+ ret = mbrtowc (NULL, input + 2, 3, &state);
+ ASSERT (ret == 1);
+ ASSERT (mbsinit (&state));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 2, 3, &state);
+ ASSERT (ret == 1);
+ ASSERT (wctob (wc) == (unsigned char) '\337');
+ ASSERT (mbsinit (&state));
+ input[2] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 3, 2, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'e');
+ ASSERT (mbsinit (&state));
+ input[3] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 4, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'r');
+ ASSERT (mbsinit (&state));
+ }
+ return 0;
+
+ case '3':
+ /* Locale encoding is UTF-8. */
+ {
+ char input[] = "B\303\274\303\237er"; /* "Büßer" */
+ memset (&state, '\0', sizeof (mbstate_t));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'B');
+ ASSERT (mbsinit (&state));
+ input[0] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 1, 1, &state);
+ ASSERT (ret == (size_t)(-2));
+ ASSERT (wc == (wchar_t) 0xBADFACE);
+ ASSERT (!mbsinit (&state));
+ input[1] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 2, 5, &state);
+ ASSERT (ret == 1);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[2] = '\0';
+
+ /* Test support of NULL first argument. */
+ ret = mbrtowc (NULL, input + 3, 4, &state);
+ ASSERT (ret == 2);
+ ASSERT (mbsinit (&state));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 3, 4, &state);
+ ASSERT (ret == 2);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[3] = '\0';
+ input[4] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 5, 2, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'e');
+ ASSERT (mbsinit (&state));
+ input[5] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 6, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'r');
+ ASSERT (mbsinit (&state));
+ }
+ return 0;
+
+ case '4':
+ /* Locale encoding is EUC-JP. */
+ {
+ char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
+ memset (&state, '\0', sizeof (mbstate_t));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == '<');
+ ASSERT (mbsinit (&state));
+ input[0] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 1, 2, &state);
+ ASSERT (ret == 2);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[1] = '\0';
+ input[2] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 3, 1, &state);
+ ASSERT (ret == (size_t)(-2));
+ ASSERT (wc == (wchar_t) 0xBADFACE);
+ ASSERT (!mbsinit (&state));
+ input[3] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 4, 4, &state);
+ ASSERT (ret == 1);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[4] = '\0';
+
+ /* Test support of NULL first argument. */
+ ret = mbrtowc (NULL, input + 5, 3, &state);
+ ASSERT (ret == 2);
+ ASSERT (mbsinit (&state));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 5, 3, &state);
+ ASSERT (ret == 2);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[5] = '\0';
+ input[6] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 7, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == '>');
+ ASSERT (mbsinit (&state));
+ }
+ return 0;
+
+ case '5':
+ /* Locale encoding is GB18030. */
+ {
+ char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
+ memset (&state, '\0', sizeof (mbstate_t));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'B');
+ ASSERT (mbsinit (&state));
+ input[0] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 1, 1, &state);
+ ASSERT (ret == (size_t)(-2));
+ ASSERT (wc == (wchar_t) 0xBADFACE);
+ ASSERT (!mbsinit (&state));
+ input[1] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 2, 7, &state);
+ ASSERT (ret == 1);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[2] = '\0';
+
+ /* Test support of NULL first argument. */
+ ret = mbrtowc (NULL, input + 3, 6, &state);
+ ASSERT (ret == 4);
+ ASSERT (mbsinit (&state));
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 3, 6, &state);
+ ASSERT (ret == 4);
+ ASSERT (wctob (wc) == EOF);
+ ASSERT (mbsinit (&state));
+ input[3] = '\0';
+ input[4] = '\0';
+ input[5] = '\0';
+ input[6] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 7, 2, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'e');
+ ASSERT (mbsinit (&state));
+ input[7] = '\0';
+
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, input + 8, 1, &state);
+ ASSERT (ret == 1);
+ ASSERT (wc == 'r');
+ ASSERT (mbsinit (&state));
+ }
+ return 0;
+ }
+
+ return 1;
+}
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