UNIX 7th Ed. - /usr/src/libc/stdio/rdwr.c

   1: #include    <stdio.h>
   2: 
   3: fread(ptr, size, count, iop)
   4: unsigned size, count;
   5: register char *ptr;
   6: register FILE *iop;
   7: {
   8:     register c;
   9:     unsigned ndone, s;
  10: 
  11:     ndone = 0;
  12:     if (size)
  13:     for (; ndone<count; ndone++) {
  14:         s = size;
  15:         do {
  16:             if ((c = getc(iop)) >= 0)
  17:                 *ptr++ = c;
  18:             else
  19:                 return(ndone);
  20:         } while (--s);
  21:     }
  22:     return(ndone);
  23: }
  24: 
  25: fwrite(ptr, size, count, iop)
  26: unsigned size, count;
  27: register char *ptr;
  28: register FILE *iop;
  29: {
  30:     register unsigned s;
  31:     unsigned ndone;
  32: 
  33:     ndone = 0;
  34:     if (size)
  35:     for (; ndone<count; ndone++) {
  36:         s = size;
  37:         do {
  38:             putc(*ptr++, iop);
  39:         } while (--s);
  40:         if (ferror(iop))
  41:             break;
  42:     }
  43:     return(ndone);
  44: }

Defined functions