'programming/C_C++'에 해당되는 글 279건

  1. 2013.09.25 1바이트씩 read

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int read_one(int fd, char *ptr, int maxlen)
{
  int n, rc;
  char c;

  for (n = 1; n < maxlen; n++) {

    if ((rc = read(fd, &c, 1)) == 1) {

      *ptr++ = c;

    }
    else if (rc == 0) {

      if (n == 1) {
        return (0);             // EOF, no data read

      }
      else {
        break;                  // EOF, some data was read
      }

    } else {
      return (-1);              // ERROR
    }

  }

  *ptr = 0;

  return (n);
}

 

 

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Posted by 공간사랑
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