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3479 | leency | 1 | #include |
2 | #include |
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3 | |||
4 | typedef int conv_t; |
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5 | typedef unsigned int ucs4_t; |
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6 | |||
7 | typedef int iconv_t; |
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8 | |||
9 | |||
10 | /* Return code if invalid input after a shift sequence of n bytes was read. |
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11 | (xxx_mbtowc) */ |
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12 | #define RET_SHIFT_ILSEQ(n) (-1-2*(n)) |
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13 | /* Return code if invalid. (xxx_mbtowc) */ |
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14 | #define RET_ILSEQ RET_SHIFT_ILSEQ(0) |
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15 | /* Return code if only a shift sequence of n bytes was read. (xxx_mbtowc) */ |
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16 | #define RET_TOOFEW(n) (-2-2*(n)) |
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17 | |||
18 | /* Return code if invalid. (xxx_wctomb) */ |
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19 | #define RET_ILUNI -1 |
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20 | /* Return code if output buffer is too small. (xxx_wctomb, xxx_reset) */ |
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21 | #define RET_TOOSMALL -2 |
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22 | |||
23 | |||
24 | #define CP866 0 |
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25 | #define CP1251 1 |
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26 | #define CP1252 2 |
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27 | #define KOI8_RU 3 |
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28 | #define ISO8859_5 4 |
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29 | #define UTF_8 5 |
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30 | |||
31 | |||
32 | int strcmp (const char* a, const char* b) |
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33 | { |
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34 | return (*a && *b && (*a == *b)) ? ((*(a+1) || *(b+1)) ? (strcmp(a+1, b+1)) : (0)) : ((*a > *b) ? (1) : (-1)); |
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35 | } |
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36 | |||
37 | |||
38 | |||
39 | |||
40 | #include "cp866.h" |
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41 | #include "cp1251.h" |
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42 | #include "cp1252.h" |
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43 | #include "koi8_ru.h" |
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44 | #include "iso8859_5.h" |
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45 | #include "utf8.h" |
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46 | |||
47 | |||
48 | int encoding(const char *what) { |
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49 | |||
50 | if (!strcmp(what,"CP866")) return CP866; |
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51 | if (!strcmp(what,"CP1251")) return CP1251; |
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52 | if (!strcmp(what,"CP1252")) return CP1252; |
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53 | if (!strcmp(what,"KOI8-RU")) return KOI8_RU; |
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54 | if (!strcmp(what,"ISO8859-5")) return ISO8859_5; |
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55 | if (!strcmp(what,"UTF-8")) return UTF_8; |
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56 | return -1; |
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57 | |||
58 | } |
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59 | |||
60 | |||
61 | iconv_t iconv_open(const char *tocode, const char *fromcode) { |
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62 | int to, from; |
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63 | if ((to=encoding(tocode))==-1) return -1; |
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64 | if ((from=encoding(fromcode))==-1) return -1; |
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65 | to=to<<16&0xFFFF0000; |
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66 | from=from&0xFFFF; |
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67 | return to+from; |
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68 | |||
69 | } |
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70 | |||
71 | size_t iconv(iconv_t cd, const char **inbuf, size_t *inbytesleft, |
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72 | char **outbuf, size_t *outbytesleft) |
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73 | { |
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74 | int n, to, from, count1,count2; |
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75 | int pwc, converted,written; |
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76 | int (*mbtowc)(conv_t, ucs4_t *, const unsigned char *, int); |
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77 | int (*wctomb)(conv_t, ucs4_t *, const unsigned char *, int); |
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78 | |||
79 | char *str; |
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80 | str=*outbuf; |
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81 | |||
82 | from=cd>>16; |
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83 | to=cd&0xFFFF; |
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84 | |||
85 | switch (from) |
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86 | { |
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87 | case CP866: mbtowc=cp866_mbtowc; break; |
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88 | case CP1251: mbtowc=cp1251_mbtowc; break; |
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89 | case CP1252: mbtowc=cp1252_mbtowc; break; |
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90 | case ISO8859_5: mbtowc=iso8859_5_mbtowc; break; |
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91 | case KOI8_RU: mbtowc=koi8_ru_mbtowc; break; |
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92 | case UTF_8: mbtowc=utf8_mbtowc; break; |
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93 | default: return -2; |
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94 | } |
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95 | |||
96 | switch (to) |
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97 | { |
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98 | case CP866: wctomb=cp866_wctomb; break; |
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99 | case CP1251: wctomb=cp1251_wctomb; break; |
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100 | case CP1252: wctomb=cp1252_wctomb; break; |
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101 | case ISO8859_5: wctomb=iso8859_5_wctomb; break; |
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102 | case KOI8_RU: wctomb=koi8_ru_wctomb; break; |
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103 | case UTF_8: wctomb=utf8_wctomb; break; |
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104 | default: return -3; |
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105 | } |
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106 | |||
107 | count1=0; |
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108 | count2=0; |
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109 | |||
110 | while ( *inbytesleft>0 && *outbytesleft>1) |
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111 | { |
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112 | n=1; |
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113 | |||
114 | do { |
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115 | //converted= (utf8_mbtowc)(0,&pwc,((*inbuf)+count1),n); |
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116 | // printf("%d\n",n); |
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117 | converted= (mbtowc)(0,&pwc,((*inbuf)+count1),n); |
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118 | |||
119 | n++; |
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120 | } while (converted==RET_TOOFEW(0)); |
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121 | |||
122 | if (converted<0) return -10; |
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123 | //written= (cp866_wctomb)(0,str+count2,pwc,1); |
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124 | written= (wctomb)(0,str+count2,pwc,1); |
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125 | if (written<0) written=0;//return -11; |
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126 | |||
127 | //printf("Conv:%d Wri:%d In:%d Out:%d UTF:%x UCS:%x 866:%s\n",converted, written, *inbytesleft,*outbytesleft,*((*inbuf)+count1),pwc, str); |
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128 | |||
129 | (*inbytesleft)-=converted; |
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130 | (*outbytesleft)-=written; |
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131 | count1+=converted; |
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132 | count2+=written; |
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133 | } |
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134 | *(str+count2)='\0'; |
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135 | |||
136 | if (*inbytesleft>0 && *outbytesleft==0) return -12; |
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137 | return 0; |
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138 | } |
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139 | |||
140 | |||
141 | /* |
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142 | int main() |
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143 | { |
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144 | char *s;// ="вертолет"; |
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145 | char *z; |
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146 | //unsigned int pwc; |
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147 | iconv_t cd; |
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148 | int in, out; |
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149 | |||
150 | FILE *infile; |
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151 | char *fname = "file.txt"; |
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152 | |||
153 | infile = fopen(fname,"r"); |
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154 | |||
155 | fseek(infile, 0, SEEK_END); |
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156 | size_t file_size = ftell(infile); |
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157 | rewind(infile); |
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158 | |||
159 | //printf ("LOL\n"); |
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160 | |||
161 | char *buffer = (char*)malloc(file_size * sizeof(char)); |
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162 | if (buffer == NULL) |
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163 | { |
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164 | fclose(infile); |
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165 | printf("Error allocating %d bytes.\n", file_size * sizeof(char)); |
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166 | return -1; |
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167 | } |
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168 | size_t bytes_read = fread(buffer, sizeof(char), file_size, infile); |
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169 | if (bytes_read != file_size) |
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170 | { |
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171 | printf("Have read only %d bytes of %d.\n", bytes_read, file_size); |
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172 | free(buffer); |
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173 | fclose(infile); |
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174 | return -1; |
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175 | } |
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176 | |||
177 | in=strlen(buffer); |
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178 | z=malloc(in+1); |
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179 | |||
180 | out=in+1; |
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181 | cd=iconv_open("CP1251","CP866"); |
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182 | // printf("%x\n",cd); |
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183 | int t; |
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184 | t=iconv(cd, &buffer, &in, &z, &out); |
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185 | printf("\nResult: %d", t); |
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186 | puts(z); |
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187 | //for (;s |
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188 | } |
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189 | */ |
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190 | |||
191 | |||
192 | typedef struct |
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193 | { |
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194 | char *name; |
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195 | void *f; |
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196 | } export_t; |
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197 | |||
198 | char szStart[] = "START"; |
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199 | char szVersion[] = "version"; |
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200 | char sziconv_open[] = "iconv_open"; |
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201 | char sziconv[] = "iconv"; |
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202 | |||
203 | export_t EXPORTS[] __asm__("EXPORTS") = |
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204 | { |
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205 | { szStart, (void*)0x0 }, |
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206 | { szVersion, (void*)0x00010001 }, |
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207 | { sziconv_open, iconv_open }, |
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208 | { sziconv, iconv }, |
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209 | { NULL, NULL }, |
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210 | };0)>0)>16&0xFFFF0000; |