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1 | #include |
1 | #include |
2 | #include |
2 | #include |
3 | #include |
3 | #include |
4 | 4 | ||
5 | typedef int conv_t; |
5 | typedef int conv_t; |
6 | typedef unsigned int ucs4_t; |
6 | typedef unsigned int ucs4_t; |
7 | typedef int iconv_t; |
7 | typedef int iconv_t; |
8 | 8 | ||
9 | /* Return code if invalid input after a shift sequence of n bytes was read. |
9 | /* Return code if invalid input after a shift sequence of n bytes was read. |
10 | (xxx_mbtowc) */ |
10 | (xxx_mbtowc) */ |
11 | #define RET_SHIFT_ILSEQ(n) (-1-2*(n)) |
11 | #define RET_SHIFT_ILSEQ(n) (-1-2*(n)) |
12 | /* Return code if invalid. (xxx_mbtowc) */ |
12 | /* Return code if invalid. (xxx_mbtowc) */ |
13 | #define RET_ILSEQ RET_SHIFT_ILSEQ(0) |
13 | #define RET_ILSEQ RET_SHIFT_ILSEQ(0) |
14 | /* Return code if only a shift sequence of n bytes was read. (xxx_mbtowc) */ |
14 | /* Return code if only a shift sequence of n bytes was read. (xxx_mbtowc) */ |
15 | #define RET_TOOFEW(n) (-2-2*(n)) |
15 | #define RET_TOOFEW(n) (-2-2*(n)) |
16 | 16 | ||
17 | /* Return code if invalid. (xxx_wctomb) */ |
17 | /* Return code if invalid. (xxx_wctomb) */ |
18 | #define RET_ILUNI -1 |
18 | #define RET_ILUNI -1 |
19 | /* Return code if output buffer is too small. (xxx_wctomb, xxx_reset) */ |
19 | /* Return code if output buffer is too small. (xxx_wctomb, xxx_reset) */ |
20 | #define RET_TOOSMALL -2 |
20 | #define RET_TOOSMALL -2 |
21 | 21 | ||
22 | #define CP866 0 |
22 | #define CP866 0 |
23 | #define CP1251 1 |
23 | #define CP1251 1 |
24 | #define CP1252 2 |
24 | #define CP1252 2 |
25 | #define KOI8_RU 3 |
25 | #define KOI8_RU 3 |
26 | #define ISO8859_5 4 |
26 | #define ISO8859_5 4 |
27 | #define UTF_8 5 |
27 | #define UTF_8 5 |
- | 28 | #define KOI8_R 6 |
|
28 | 29 | ||
29 | #include "cp866.h" |
30 | #include "cp866.h" |
30 | #include "cp1251.h" |
31 | #include "cp1251.h" |
31 | #include "cp1252.h" |
32 | #include "cp1252.h" |
- | 33 | #include "koi8_r.h" |
|
32 | #include "koi8_ru.h" |
34 | #include "koi8_ru.h" |
33 | #include "iso8859_5.h" |
35 | #include "iso8859_5.h" |
34 | #include "utf8.h" |
36 | #include "utf8.h" |
35 | 37 | ||
36 | int encoding(const char *someencoding) { |
38 | int encoding(const char *someencoding) { |
37 | 39 | ||
38 | char *what = strdup(someencoding); |
40 | char *what = strdup(someencoding); |
39 | /* Ignore //TRANSLIT or //IGNORE for now. */ |
41 | /* Ignore //TRANSLIT or //IGNORE for now. */ |
40 | int i; |
42 | int i; |
41 | for(i = 0; i < strlen(what); i++) { |
43 | for(i = 0; i < strlen(what); i++) { |
42 | if(what[i] == '/') { |
44 | if(what[i] == '/') { |
43 | what[i] = '\0'; |
45 | what[i] = '\0'; |
44 | break; |
46 | break; |
45 | } |
47 | } |
46 | } |
48 | } |
47 | 49 | ||
48 | if (!strcasecmp(what,"CP866")) return CP866; |
50 | if (!strcasecmp(what,"CP866")) return CP866; |
49 | if (!strcasecmp(what,"CP1251")) return CP1251; |
51 | if (!strcasecmp(what,"CP1251")) return CP1251; |
50 | if (!strcasecmp(what,"windows-1251")) return CP1251; |
52 | if (!strcasecmp(what,"windows-1251")) return CP1251; |
51 | if (!strcasecmp(what,"windows-1252")) return CP1252; |
- | |
52 | if (!strcasecmp(what,"CP1252")) return CP1252; |
53 | if (!strcasecmp(what,"CP1252")) return CP1252; |
- | 54 | if (!strcasecmp(what,"windows-1252")) return CP1252; |
|
- | 55 | if (!strcasecmp(what,"KOI8-R")) return KOI8_R; |
|
53 | if (!strcasecmp(what,"KOI8-RU")) return KOI8_RU; |
56 | if (!strcasecmp(what,"KOI8-RU")) return KOI8_RU; |
54 | if (!strcasecmp(what,"KOI8-R")) return KOI8_RU; |
- | |
55 | if (!strcasecmp(what,"ISO8859-5")) return ISO8859_5; |
57 | if (!strcasecmp(what,"ISO8859-5")) return ISO8859_5; |
56 | if (!strcasecmp(what,"UTF-8")) return UTF_8; |
58 | if (!strcasecmp(what,"UTF-8")) return UTF_8; |
57 | return -1; |
59 | return -1; |
58 | } |
60 | } |
59 | 61 | ||
60 | iconv_t iconv_open(const char *tocode, const char *fromcode) { |
62 | iconv_t iconv_open(const char *tocode, const char *fromcode) { |
61 | int to, from; |
63 | int to, from; |
62 | 64 | ||
63 | if ((to=encoding(tocode))==-1) return -1; |
65 | if ((to=encoding(tocode))==-1) return -1; |
64 | if ((from=encoding(fromcode))==-1) return -1; |
66 | if ((from=encoding(fromcode))==-1) return -1; |
65 | 67 | ||
66 | to=to<<16&0xFFFF0000; |
68 | to=to<<16&0xFFFF0000; |
67 | from=from&0xFFFF; |
69 | from=from&0xFFFF; |
68 | 70 | ||
69 | return to+from; |
71 | return to+from; |
70 | } |
72 | } |
71 | 73 | ||
72 | int iconv_close(iconv_t icd) |
74 | int iconv_close(iconv_t icd) |
73 | { |
75 | { |
74 | return 0; |
76 | return 0; |
75 | } |
77 | } |
76 | 78 | ||
77 | size_t iconv(iconv_t cd, const char **inbuf, size_t *inbytesleft, |
79 | size_t iconv(iconv_t cd, const char **inbuf, size_t *inbytesleft, |
78 | char **outbuf, size_t *outbytesleft) |
80 | char **outbuf, size_t *outbytesleft) |
79 | { |
81 | { |
80 | int n, to, from; |
82 | int n, to, from; |
81 | size_t count1,count2; |
83 | size_t count1,count2; |
82 | unsigned int pwc; |
84 | unsigned int pwc; |
83 | int converted,written; |
85 | int converted,written; |
84 | int (*mbtowc)(conv_t, ucs4_t *, const unsigned char *, int); |
86 | int (*mbtowc)(conv_t, ucs4_t *, const unsigned char *, int); |
85 | int (*wctomb)(conv_t, unsigned char *, ucs4_t, int); |
87 | int (*wctomb)(conv_t, unsigned char *, ucs4_t, int); |
86 | 88 | ||
87 | to=cd>>16; |
89 | to=cd>>16; |
88 | from=cd&0xFFFF; |
90 | from=cd&0xFFFF; |
89 | 91 | ||
90 | switch (from) |
92 | switch (from) |
91 | { |
93 | { |
92 | case CP866: mbtowc=cp866_mbtowc; break; |
94 | case CP866: mbtowc=cp866_mbtowc; break; |
93 | case CP1251: mbtowc=cp1251_mbtowc; break; |
95 | case CP1251: mbtowc=cp1251_mbtowc; break; |
94 | case CP1252: mbtowc=cp1252_mbtowc; break; |
96 | case CP1252: mbtowc=cp1252_mbtowc; break; |
95 | case ISO8859_5: mbtowc=iso8859_5_mbtowc; break; |
97 | case ISO8859_5: mbtowc=iso8859_5_mbtowc; break; |
- | 98 | case KOI8_R: mbtowc=koi8_r_mbtowc; break; |
|
96 | case KOI8_RU: mbtowc=koi8_ru_mbtowc; break; |
99 | case KOI8_RU: mbtowc=koi8_ru_mbtowc; break; |
97 | case UTF_8: mbtowc=utf8_mbtowc; break; |
100 | case UTF_8: mbtowc=utf8_mbtowc; break; |
98 | default: return (size_t)-1; |
101 | default: return (size_t)-1; |
99 | } |
102 | } |
100 | 103 | ||
101 | switch (to) |
104 | switch (to) |
102 | { |
105 | { |
103 | case CP866: wctomb=cp866_wctomb; break; |
106 | case CP866: wctomb=cp866_wctomb; break; |
104 | case CP1251: wctomb=cp1251_wctomb; break; |
107 | case CP1251: wctomb=cp1251_wctomb; break; |
105 | case CP1252: wctomb=cp1252_wctomb; break; |
108 | case CP1252: wctomb=cp1252_wctomb; break; |
106 | case ISO8859_5: wctomb=iso8859_5_wctomb; break; |
109 | case ISO8859_5: wctomb=iso8859_5_wctomb; break; |
- | 110 | case KOI8_R: wctomb=koi8_r_wctomb; break; |
|
107 | case KOI8_RU: wctomb=koi8_ru_wctomb; break; |
111 | case KOI8_RU: wctomb=koi8_ru_wctomb; break; |
108 | case UTF_8: wctomb=utf8_wctomb; break; |
112 | case UTF_8: wctomb=utf8_wctomb; break; |
109 | default: return (size_t)-1; |
113 | default: return (size_t)-1; |
110 | } |
114 | } |
111 | 115 | ||
112 | count1=0; |
116 | count1=0; |
113 | count2=0; |
117 | count2=0; |
114 | 118 | ||
115 | /* Convert input multibyte char to wide character by using calls to mbtowc */ |
119 | /* Convert input multibyte char to wide character by using calls to mbtowc */ |
116 | /* Convert wide character to multibyte by calls to wctomb */ |
120 | /* Convert wide character to multibyte by calls to wctomb */ |
117 | /* Handle errors as we go on converting to be as standard compliant as possible */ |
121 | /* Handle errors as we go on converting to be as standard compliant as possible */ |
118 | while(count1 < *inbytesleft) { |
122 | while(count1 < *inbytesleft) { |
119 | unsigned char mbholder[] = { 0,0,0,0,0,0 }; |
123 | unsigned char mbholder[] = { 0,0,0,0,0,0 }; |
120 | 124 | ||
121 | int numbytes = (mbtowc)(0, &pwc,((*inbuf)+count1), *inbytesleft - count1); |
125 | int numbytes = (mbtowc)(0, &pwc,((*inbuf)+count1), *inbytesleft - count1); |
122 | if(numbytes < 0) { |
126 | if(numbytes < 0) { |
123 | /* errno = EILSEQ if invalid multibyte sequence encountered in input */ |
127 | /* errno = EILSEQ if invalid multibyte sequence encountered in input */ |
124 | /* errno = EINVAL if input ends in the middle of a multibyte sequence */ |
128 | /* errno = EINVAL if input ends in the middle of a multibyte sequence */ |
125 | 129 | ||
126 | switch(numbytes) { |
130 | switch(numbytes) { |
127 | case RET_TOOFEW(0): |
131 | case RET_TOOFEW(0): |
128 | errno = EINVAL; |
132 | errno = EINVAL; |
129 | break; |
133 | break; |
130 | 134 | ||
131 | case RET_ILSEQ: |
135 | case RET_ILSEQ: |
132 | errno = EILSEQ; |
136 | errno = EILSEQ; |
133 | break; |
137 | break; |
134 | } |
138 | } |
135 | 139 | ||
136 | *inbytesleft -= count1; |
140 | *inbytesleft -= count1; |
137 | *outbytesleft -= count2; |
141 | *outbytesleft -= count2; |
138 | *inbuf += count1; |
142 | *inbuf += count1; |
139 | *outbuf += count2; |
143 | *outbuf += count2; |
140 | return (size_t) -1; |
144 | return (size_t) -1; |
141 | } |
145 | } |
142 | 146 | ||
143 | /* Convert from wide to multibyte storing result in mbholder and num converted in numbytes2 */ |
147 | /* Convert from wide to multibyte storing result in mbholder and num converted in numbytes2 */ |
144 | /* Pass the minimum amount of space we have, one from mbholder and one from remaining in outbuf */ |
148 | /* Pass the minimum amount of space we have, one from mbholder and one from remaining in outbuf */ |
145 | int minspace = sizeof(mbholder) <= (*outbytesleft - count2) ? sizeof(mbholder) : (*outbytesleft - count2); |
149 | int minspace = sizeof(mbholder) <= (*outbytesleft - count2) ? sizeof(mbholder) : (*outbytesleft - count2); |
146 | 150 | ||
147 | int numbytes2 = (wctomb)(0, &mbholder[0], pwc, minspace); |
151 | int numbytes2 = (wctomb)(0, &mbholder[0], pwc, minspace); |
148 | if(numbytes2 < 0) { |
152 | if(numbytes2 < 0) { |
149 | switch(numbytes2) { |
153 | switch(numbytes2) { |
150 | case RET_ILUNI: |
154 | case RET_ILUNI: |
151 | errno = EILSEQ; |
155 | errno = EILSEQ; |
152 | break; |
156 | break; |
153 | case RET_TOOSMALL: |
157 | case RET_TOOSMALL: |
154 | errno = E2BIG; |
158 | errno = E2BIG; |
155 | break; |
159 | break; |
156 | } |
160 | } |
157 | 161 | ||
158 | *inbytesleft -= count1; |
162 | *inbytesleft -= count1; |
159 | *outbytesleft -= count2; |
163 | *outbytesleft -= count2; |
160 | *inbuf += count1; |
164 | *inbuf += count1; |
161 | *outbuf += count2; |
165 | *outbuf += count2; |
162 | 166 | ||
163 | return (size_t) -1; |
167 | return (size_t) -1; |
164 | } |
168 | } |
165 | 169 | ||
166 | int i; |
170 | int i; |
167 | for(i = 0; i < numbytes2; i++) { |
171 | for(i = 0; i < numbytes2; i++) { |
168 | *(*outbuf + count2 + i) = mbholder[i]; |
172 | *(*outbuf + count2 + i) = mbholder[i]; |
169 | } |
173 | } |
170 | 174 | ||
171 | count1+=numbytes; |
175 | count1+=numbytes; |
172 | count2+=numbytes2; |
176 | count2+=numbytes2; |
173 | } |
177 | } |
174 | 178 | ||
175 | /* Successfully converted everything, update the variables and return number of bytes converted */ |
179 | /* Successfully converted everything, update the variables and return number of bytes converted */ |
176 | *inbytesleft -= count1; |
180 | *inbytesleft -= count1; |
177 | *outbytesleft -= count2; |
181 | *outbytesleft -= count2; |
178 | *inbuf += count1; |
182 | *inbuf += count1; |
179 | *outbuf += count2; |
183 | *outbuf += count2; |
180 | 184 | ||
181 | return count1; |
185 | return count1; |
182 | } |
186 | } |
183 | 187 | ||
184 | /* int main() */ |
188 | /* int main() */ |
185 | /* { */ |
189 | /* { */ |
186 | /* char *s;// ="вертолет"; */ |
190 | /* char *s;// ="вертолет"; */ |
187 | /* char *z; */ |
191 | /* char *z; */ |
188 | /* //unsigned int pwc; */ |
192 | /* //unsigned int pwc; */ |
189 | /* iconv_t cd; */ |
193 | /* iconv_t cd; */ |
190 | /* size_t in, out; */ |
194 | /* size_t in, out; */ |
191 | 195 | ||
192 | /* FILE *infile; */ |
196 | /* FILE *infile; */ |
193 | /* char *fname = "file3.txt"; */ |
197 | /* char *fname = "file3.txt"; */ |
194 | 198 | ||
195 | /* size_t testmax = 100; */ |
199 | /* size_t testmax = 100; */ |
196 | /* size_t test = 0; */ |
200 | /* size_t test = 0; */ |
197 | 201 | ||
198 | /* infile = fopen(fname,"r"); */ |
202 | /* infile = fopen(fname,"r"); */ |
199 | 203 | ||
200 | /* fseek(infile, 0, SEEK_END); */ |
204 | /* fseek(infile, 0, SEEK_END); */ |
201 | /* size_t file_size = ftell(infile); */ |
205 | /* size_t file_size = ftell(infile); */ |
202 | /* rewind(infile); */ |
206 | /* rewind(infile); */ |
203 | 207 | ||
204 | /* char *buffer = (char*)malloc(file_size * sizeof(char)); */ |
208 | /* char *buffer = (char*)malloc(file_size * sizeof(char)); */ |
205 | /* if (buffer == NULL) */ |
209 | /* if (buffer == NULL) */ |
206 | /* { */ |
210 | /* { */ |
207 | /* fclose(infile); */ |
211 | /* fclose(infile); */ |
208 | /* printf("Error allocating %d bytes.\n", file_size * sizeof(char)); */ |
212 | /* printf("Error allocating %d bytes.\n", file_size * sizeof(char)); */ |
209 | /* return -1; */ |
213 | /* return -1; */ |
210 | /* } */ |
214 | /* } */ |
211 | /* size_t bytes_read = fread(buffer, sizeof(char), file_size, infile); */ |
215 | /* size_t bytes_read = fread(buffer, sizeof(char), file_size, infile); */ |
212 | /* if (bytes_read != file_size) */ |
216 | /* if (bytes_read != file_size) */ |
213 | /* { */ |
217 | /* { */ |
214 | /* /\* printf("Have read only %d bytes of %d.\n", bytes_read, file_size); *\/ */ |
218 | /* /\* printf("Have read only %d bytes of %d.\n", bytes_read, file_size); *\/ */ |
215 | /* free(buffer); */ |
219 | /* free(buffer); */ |
216 | /* fclose(infile); */ |
220 | /* fclose(infile); */ |
217 | /* return -1; */ |
221 | /* return -1; */ |
218 | /* } */ |
222 | /* } */ |
219 | 223 | ||
220 | /* /\* in=strlen(buffer); *\/ */ |
224 | /* /\* in=strlen(buffer); *\/ */ |
221 | /* in = bytes_read; */ |
225 | /* in = bytes_read; */ |
222 | /* z=malloc(in+12000); */ |
226 | /* z=malloc(in+12000); */ |
223 | 227 | ||
224 | /* out=in-1000; */ |
228 | /* out=in-1000; */ |
225 | /* cd=iconv_open("UTF-8","UTF-8"); */ |
229 | /* cd=iconv_open("UTF-8","UTF-8"); */ |
226 | /* // printf("%x\n",cd); */ |
230 | /* // printf("%x\n",cd); */ |
227 | /* int t; */ |
231 | /* int t; */ |
228 | /* char *zor = z; */ |
232 | /* char *zor = z; */ |
229 | 233 | ||
230 | /* /\* for(t = 0; t < 27400; t++) *\/ */ |
234 | /* /\* for(t = 0; t < 27400; t++) *\/ */ |
231 | /* /\* printf("0x%x,", buffer[t]); *\/ */ |
235 | /* /\* printf("0x%x,", buffer[t]); *\/ */ |
232 | 236 | ||
233 | /* t=iconv(cd, &buffer, &in, &z, &out); */ |
237 | /* t=iconv(cd, &buffer, &in, &z, &out); */ |
234 | /* /\* printf("\nResult after iconv(): %d", t); *\/ */ |
238 | /* /\* printf("\nResult after iconv(): %d", t); *\/ */ |
235 | 239 | ||
236 | /* /\* for(t = 0; t < 24259; t++) *\/ */ |
240 | /* /\* for(t = 0; t < 24259; t++) *\/ */ |
237 | /* /\* printf("%c", zor[t]); *\/ */ |
241 | /* /\* printf("%c", zor[t]); *\/ */ |
238 | 242 | ||
239 | /* //for (;s |
243 | /* //for (;s |
240 | /* } */ |
244 | /* } */ |
241 | 245 | ||
242 | /* typedef struct */ |
246 | /* typedef struct */ |
243 | /* { */ |
247 | /* { */ |
244 | /* char *name; */ |
248 | /* char *name; */ |
245 | /* void *f; */ |
249 | /* void *f; */ |
246 | /* } export_t; */ |
250 | /* } export_t; */ |
247 | 251 | ||
248 | /* char szStart[] = "START"; */ |
252 | /* char szStart[] = "START"; */ |
249 | /* char szVersion[] = "version"; */ |
253 | /* char szVersion[] = "version"; */ |
250 | /* char sziconv_open[] = "iconv_open"; */ |
254 | /* char sziconv_open[] = "iconv_open"; */ |
251 | /* char sziconv[] = "iconv"; */ |
255 | /* char sziconv[] = "iconv"; */ |
252 | 256 | ||
253 | /* export_t EXPORTS[] __asm__("EXPORTS") = */ |
257 | /* export_t EXPORTS[] __asm__("EXPORTS") = */ |
254 | /* { */ |
258 | /* { */ |
255 | /* { szStart, (void*)0x0 }, */ |
259 | /* { szStart, (void*)0x0 }, */ |
256 | /* { szVersion, (void*)0x00010001 }, */ |
260 | /* { szVersion, (void*)0x00010001 }, */ |
257 | /* { sziconv_open, iconv_open }, */ |
261 | /* { sziconv_open, iconv_open }, */ |
258 | /* { sziconv, iconv }, */ |
262 | /* { sziconv, iconv }, */ |
259 | /* { NULL, NULL }, */ |
263 | /* { NULL, NULL }, */ |
260 | /* }; */>>>>=>>>16&0xFFFF0000; |
264 | /* }; */>>>>=>>>16&0xFFFF0000; |
261 | ><16&0xFFFF0000; |
265 | ><16&0xFFFF0000; |
262 | >> |
266 | >> |