ISO C Record I⁄O

If you use an ISO C record I⁄O in your program, you must specify type = record in the open mode parameter of fopen() when you open a file, and you must use the FILE data type. The following figure provides an example.

Figure 1. Example: Using ISO C Record I/O

#include <stdio.h>
#define MAX_LEN 80
int main(void)
{
  FILE *fp;
  int len;
  char buf[MAX_LEN + 1];
  fp = fopen("MY_LIB/MY_FILE", "rb, type = record");
  while ((len = fread(buf, 1, MAX_LEN, fp)) != 0)
  {
    buf[len] = '\0';
    printf("%s\n", buf);
  }
  fclose(fp);
  return 0;
}