#include <string.h>
#include <stdio.h>
typedef int conv_t;
typedef unsigned int ucs4_t;
typedef int iconv_t;
/* Return code if invalid input after a shift sequence of n bytes was read.
(xxx_mbtowc) */
#define RET_SHIFT_ILSEQ(n) (-1-2*(n))
/* Return code if invalid. (xxx_mbtowc) */
#define RET_ILSEQ RET_SHIFT_ILSEQ(0)
/* Return code if only a shift sequence of n bytes was read. (xxx_mbtowc) */
#define RET_TOOFEW(n) (-2-2*(n))
/* Return code if invalid. (xxx_wctomb) */
#define RET_ILUNI -1
/* Return code if output buffer is too small. (xxx_wctomb, xxx_reset) */
#define RET_TOOSMALL -2
#define CP866 0
#define CP1251 1
#define CP1252 2
#define KOI8_RU 3
#define ISO8859_5 4
#define UTF_8 5
int strcmp (const char* a
, const char* b
) {
return (*a
&& *b
&& (*a
== *b
)) ? ((*(a
+1) || *(b
+1)) ? (strcmp(a
+1, b
+1)) : (0)) : ((*a
> *b
) ? (1) : (-1)); }
#include "cp866.h"
#include "cp1251.h"
#include "cp1252.h"
#include "koi8_ru.h"
#include "iso8859_5.h"
#include "utf8.h"
int encoding(const char *what) {
if (!strcmp(what
,"CP866")) return CP866
; if (!strcmp(what
,"CP1251")) return CP1251
; if (!strcmp(what
,"CP1252")) return CP1252
; if (!strcmp(what
,"KOI8-RU")) return KOI8_RU
; if (!strcmp(what
,"ISO8859-5")) return ISO8859_5
; if (!strcmp(what
,"UTF-8")) return UTF_8
; return -1;
}
iconv_t iconv_open(const char *tocode, const char *fromcode) {
int to, from;
if ((to=encoding(tocode))==-1) return -1;
if ((from=encoding(fromcode))==-1) return -1;
to=to<<16&0xFFFF0000;
from=from&0xFFFF;
return to+from;
}
size_t iconv(iconv_t cd, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft)
{
int n, to, from, count1,count2;
int pwc, converted,written;
int (*mbtowc)(conv_t, ucs4_t *, const unsigned char *, int);
int (*wctomb)(conv_t, ucs4_t *, const unsigned char *, int);
char *str;
str=*outbuf;
from=cd>>16;
to=cd&0xFFFF;
switch (from)
{
case CP866: mbtowc=cp866_mbtowc; break;
case CP1251: mbtowc=cp1251_mbtowc; break;
case CP1252: mbtowc=cp1252_mbtowc; break;
case ISO8859_5: mbtowc=iso8859_5_mbtowc; break;
case KOI8_RU: mbtowc=koi8_ru_mbtowc; break;
case UTF_8: mbtowc=utf8_mbtowc; break;
default: return -2;
}
switch (to)
{
case CP866: wctomb=cp866_wctomb; break;
case CP1251: wctomb=cp1251_wctomb; break;
case CP1252: wctomb=cp1252_wctomb; break;
case ISO8859_5: wctomb=iso8859_5_wctomb; break;
case KOI8_RU: wctomb=koi8_ru_wctomb; break;
case UTF_8: wctomb=utf8_wctomb; break;
default: return -3;
}
count1=0;
count2=0;
while ( *inbytesleft>0 && *outbytesleft>1)
{
n=1;
do {
//converted= (utf8_mbtowc)(0,&pwc,((*inbuf)+count1),n);
// printf("%d\n",n);
converted= (mbtowc)(0,&pwc,((*inbuf)+count1),n);
n++;
} while (converted==RET_TOOFEW(0));
if (converted<0) return -10;
//written= (cp866_wctomb)(0,str+count2,pwc,1);
written= (wctomb)(0,str+count2,pwc,1);
if (written<0) written=0;//return -11;
//printf("Conv:%d Wri:%d In:%d Out:%d UTF:%x UCS:%x 866:%s\n",converted, written, *inbytesleft,*outbytesleft,*((*inbuf)+count1),pwc, str);
(*inbytesleft)-=converted;
(*outbytesleft)-=written;
count1+=converted;
count2+=written;
}
*(str+count2)='\0';
if (*inbytesleft>0 && *outbytesleft==0) return -12;
return 0;
}
/*
int main()
{
char *s;// ="вертолет";
char *z;
//unsigned int pwc;
iconv_t cd;
int in, out;
FILE *infile;
char *fname = "file.txt";
infile = fopen(fname,"r");
fseek(infile, 0, SEEK_END);
size_t file_size = ftell(infile);
rewind(infile);
//printf ("LOL\n");
char *buffer = (char*)malloc(file_size * sizeof(char));
if (buffer == NULL)
{
fclose(infile);
printf("Error allocating %d bytes.\n", file_size * sizeof(char));
return -1;
}
size_t bytes_read = fread(buffer, sizeof(char), file_size, infile);
if (bytes_read != file_size)
{
printf("Have read only %d bytes of %d.\n", bytes_read, file_size);
free(buffer);
fclose(infile);
return -1;
}
in=strlen(buffer);
z=malloc(in+1);
out=in+1;
cd=iconv_open("CP1251","CP866");
// printf("%x\n",cd);
int t;
t=iconv(cd, &buffer, &in, &z, &out);
printf("\nResult: %d", t);
puts(z);
//for (;s<s+strlen(s);s++) {cp866_mbtowc (0, &pwc, s, 1);printf("%c=%u\n",*s,pwc);}
}
*/
typedef struct
{
char *name;
void *f;
} export_t;
char szStart[] = "START";
char szVersion[] = "version";
char sziconv_open[] = "iconv_open";
char sziconv[] = "iconv";
export_t EXPORTS[] __asm__("EXPORTS") =
{
{ szStart, (void*)0x0 },
{ szVersion, (void*)0x00010001 },
{ sziconv_open, iconv_open },
{ sziconv, iconv },
{ NULL, NULL },
};