1 /* Copyright (C) 2004-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <iconv.h>
19 #include <string.h>
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <errno.h>
23
24 #define SIZE 256 /* enough room for conversion */
25 #define SAMPLESTR "abc"
26
27 struct unalign
28 {
29 char str1[1];
30 char str2[SIZE];
31 };
32
33 struct convcode
34 {
35 const char *tocode;
36 const char *fromcode;
37 };
38
39 /* test builtin transformation */
40 static const struct convcode testcode[] = {
41 {"ASCII", "ASCII"},
42 {"UTF-8", "ASCII"},
43 {"UCS-2BE", "ASCII"},
44 {"UCS-2LE", "ASCII"},
45 {"UCS-4BE", "ASCII"},
46 {"UCS-4LE", "ASCII"},
47 };
48
49 static const int number = (int) sizeof (testcode) / sizeof (struct convcode);
50
51 static int
convert(const char * tocode,const char * fromcode,char * inbufp,size_t inbytesleft,char * outbufp,size_t outbytesleft)52 convert (const char *tocode, const char *fromcode, char *inbufp,
53 size_t inbytesleft, char *outbufp, size_t outbytesleft)
54 {
55 iconv_t *ic;
56 size_t outbytes = outbytesleft;
57 int ret;
58
59 ic = iconv_open (tocode, fromcode);
60 if (ic == (iconv_t *) - 1)
61 {
62 printf ("iconv_open failed: from: %s, to: %s: %s",
63 fromcode, tocode, strerror (errno));
64 return -1;
65 }
66
67 while (inbytesleft > 0)
68 {
69 ret = iconv (ic, &inbufp, &inbytesleft, &outbufp, &outbytes);
70 if (ret == -1)
71 {
72 printf ("iconv failed: from: %s, to: %s: %s",
73 fromcode, tocode, strerror (errno));
74 iconv_close (ic);
75 return -1;
76 }
77 }
78
79 ret = iconv_close (ic);
80 if (ret == -1)
81 {
82 printf ("iconv_close failed: from: %s, to: %s: %s",
83 fromcode, tocode, strerror (errno));
84 return -1;
85 }
86
87 return outbytesleft - outbytes;
88 }
89
90
91 static int
test_unalign(const struct convcode * codes,const char * str,int len)92 test_unalign (const struct convcode *codes, const char *str, int len)
93 {
94 struct unalign *inbufp, *outbufp;
95 char *inbuf, *outbuf;
96 size_t inbytesleft, outbytesleft;
97 int retlen;
98
99 /* allocating unaligned buffer for both inbuf and outbuf */
100 inbufp = (struct unalign *) malloc (sizeof (struct unalign));
101 if (!inbufp)
102 {
103 printf ("no memory available\n");
104 exit (1);
105 }
106 inbuf = inbufp->str2;
107
108 outbufp = (struct unalign *) malloc (sizeof (struct unalign));
109 if (!outbufp)
110 {
111 printf ("no memory available\n");
112 exit (1);
113 }
114 outbuf = outbufp->str2;
115
116 /* first iconv phase */
117 memcpy (inbuf, str, len);
118 inbytesleft = len;
119 outbytesleft = sizeof (struct unalign);
120 retlen = convert (codes->tocode, codes->fromcode, inbuf, inbytesleft,
121 outbuf, outbytesleft);
122 if (retlen == -1) /* failed */
123 return 1;
124
125 /* second round trip iconv phase */
126 memcpy (inbuf, outbuf, retlen);
127 inbytesleft = retlen;
128 outbytesleft = sizeof (struct unalign);
129 retlen = convert (codes->fromcode, codes->tocode, inbuf, inbytesleft,
130 outbuf, outbytesleft);
131 if (retlen == -1) /* failed */
132 return 1;
133
134 free (inbufp);
135 free (outbufp);
136
137 return 0;
138 }
139
140 static int
do_test(void)141 do_test (void)
142 {
143 int i;
144 int ret = 0;
145
146 for (i = 0; i < number; i++)
147 {
148 ret = test_unalign (&testcode[i], (char *) SAMPLESTR, sizeof (SAMPLESTR));
149 if (ret)
150 break;
151 printf ("iconv: %s <-> %s: ok\n",
152 testcode[i].fromcode, testcode[i].tocode);
153 }
154 if (ret == 0)
155 printf ("Succeeded.\n");
156
157 return ret;
158 }
159
160 #define TEST_FUNCTION do_test ()
161 #include "../test-skeleton.c"
162