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发表于 2005-05-23 10:13 |只看该作者 |倒序浏览

因业务需要，需要把HP机器上的文本（ASCII码形式，对应iso81）转化成AIX机器上的文本 ebcd码。
函数据说是用convert(tocode, fromcode, Input)
请问：函数中的Input－－－－指iint 型的nput file descriptor，输入文件描述符。这是啥东东，百思不得其解。
那位高手能给俺个转换程序参考一下，呵呵，感谢。下面这个编译不过去，偶准备推倒重来，叹息。

#include <iconv.h>;
#include <errno.h>;
char str[1000],strout[1000];
   void main()
   {
      int fd=1;
   ...
      printf("fopen file succ,put str....\n"

;
      getchar();
      gets(str);
      convert('iso81','engle', fd);
      ......
   }
int convert(tocode, fromcode, Input)
   {
   /*char *tocode;                      tocode name */
   /* char *fromcode;                      fromcode name */
/*  int Input;                         input file descriptor */
      extern void error();          /* local error message */
      iconv_t cd;                   /* conversion descriptor */
      unsigned char *table;          /* ptr to translation table */
      int bytesread;                /* num bytes read into input buffer */
      unsigned char inbuf[BUFSIZ]; /* input buffer */
      unsigned char *inchar;       /* ptr to input character */
      int inbytesleft;             /* num bytes left in input buffer */
      unsigned char outbuf[BUFSIZ]; /* output buffer */
      unsigned char *outchar;       /* ptr to output character */
      int outbytesleft;             /* num bytes left in output buffer */
      size_t ret_val;                /* number of conversions */

      /* 初始化转换，获得转换描述符 */
      if ((cd = iconv_open(tocode, fromcode)) == (iconv_t)-1)
         {
            /*error(FATAL, BAD_OPEN);*/
            printf("not that code \n"

;
  }
      inbytesleft = 0;                      /* no. of bytes converted */
      /* translate the characters */
      for ( ;; )
         {
                  inchar =str;       /* points to input buffer */
                  outchar =strout;       /* points to output buffer */
                  outbytesleft = BUFSIZ; /* no of bytes to be converted */
                  if ((bytesread = read(Input, inbuf+inbytesleft,
                                          (size_t)BUFSIZ-inbytesleft)) < 0)
                        {
                           perror("prog"

;
return BAD;
printf("read input file error \n"

;
                        }
                  if (!(inbytesleft += bytesread))
                        {
                           break;          /* end of conversions */
                        }

                  ret_val = iconv(cd, &inchar, &inbytesleft,
                                    &outchar, &outbytesleft);

  if (write(1, outbuf, (size_t)BUFSIZ-outbytesleft) < 0)
                        {
                           perror("prog"

;
return BAD;
printf(" write out file error \n"

;
                        }

      if ((ret_val == -1) && (errno == EINVAL))
                     {
                           memcpy((char *)inbuf, (char *)inchar,
                                 (size_t)inbytesleft);
                        printf("error 1 \n"

;
                     }
      else if ((ret_val == -1) && (errno == EILSEQ))
                     {
/*                            error(FATAL, BAD_CONVERSION);*/
                        printf("error 2 \n"

;
                     }
      else if ((ret_val == -1) && (errno == E2BIG))
                     {
                           memcpy((char *)inbuf, (char *)inchar,
                                 (size_t)inbytesleft);

   (size_t)inbytesleft);
                           printf("error 3 \n"

;
                     }
                  /* Go back and read from the input file. */

      /* end conversion & get rid of the conversion table */
/* if (iconv_close(cd) == BAD)
                        printf(" close error end \n"

;*/
            return (0);
      }
   }