1 /*
2 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
3 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
4 * at Electronni Visti IA, Kiev, Ukraine.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "lint.h"
30 #include <stdlib.h>
31 #include <string.h>
32 #include <errno.h>
33 #include <wchar.h>
34 #include <assert.h>
35 #include "collate.h"
36
37 size_t
38 strxfrm(char *_RESTRICT_KYWD xf, const char *_RESTRICT_KYWD src, size_t dlen)
39 {
40 size_t slen;
41 size_t xlen;
42 wchar_t *wcs = NULL;
43
44 if (!*src) {
45 if (dlen > 0)
46 *xf = '\0';
47 return (0);
48 }
49
50 /*
51 * The conversion from multibyte to wide character strings is
52 * strictly reducing (one byte of an mbs cannot expand to more
53 * than one wide character.)
54 */
55 slen = strlen(src);
56
57 if (_collate_load_error)
58 goto error;
59
60 if ((wcs = malloc((slen + 1) * sizeof (wchar_t))) == NULL)
61 goto error;
62
63 if (mbstowcs(wcs, src, slen + 1) == (size_t)-1)
64 goto error;
65
66 if ((xlen = _collate_sxfrm(wcs, xf, dlen)) == (size_t)-1)
67 goto error;
68
69 if (wcs)
70 free(wcs);
71
72 if (dlen > xlen) {
73 xf[xlen] = 0;
74 } else if (dlen) {
75 xf[dlen-1] = 0;
76 }
77
78 return (xlen);
79
80 error:
81 /* errno should be set to ENOMEM if malloc failed */
82 if (wcs)
83 free(wcs);
84 (void) strlcpy(xf, src, dlen);
85
86 return (slen);
87 }
|
1 /*
2 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
4 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
5 * at Electronni Visti IA, Kiev, Ukraine.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include "lint.h"
31 #include <stdlib.h>
32 #include <string.h>
33 #include <errno.h>
34 #include <wchar.h>
35 #include <assert.h>
36 #include <xlocale.h>
37 #include "collate.h"
38
39 size_t
40 strxfrm_l(char *_RESTRICT_KYWD xf, const char *_RESTRICT_KYWD src,
41 size_t dlen, locale_t loc)
42 {
43 size_t slen;
44 size_t xlen;
45 wchar_t *wcs = NULL;
46
47 if (!*src) {
48 if (dlen > 0)
49 *xf = '\0';
50 return (0);
51 }
52
53 /*
54 * The conversion from multibyte to wide character strings is
55 * strictly reducing (one byte of an mbs cannot expand to more
56 * than one wide character.)
57 */
58 slen = strlen(src);
59
60 if (loc->collate->lc_is_posix)
61 goto error;
62
63 if ((wcs = malloc((slen + 1) * sizeof (wchar_t))) == NULL)
64 goto error;
65
66 if (mbstowcs_l(wcs, src, slen + 1, loc) == (size_t)-1)
67 goto error;
68
69 if ((xlen = _collate_sxfrm(wcs, xf, dlen, loc)) == (size_t)-1)
70 goto error;
71
72 if (wcs)
73 free(wcs);
74
75 if (dlen > xlen) {
76 xf[xlen] = 0;
77 } else if (dlen) {
78 xf[dlen-1] = 0;
79 }
80
81 return (xlen);
82
83 error:
84 /* errno should be set to ENOMEM if malloc failed */
85 if (wcs)
86 free(wcs);
87 (void) strlcpy(xf, src, dlen);
88
89 return (slen);
90 }
91
92 size_t
93 strxfrm(char *_RESTRICT_KYWD xf, const char *_RESTRICT_KYWD src, size_t dlen)
94 {
95 return (strxfrm_l(xf, src, dlen, uselocale(NULL)));
96 }
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