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

   1: #include    <stdio.h>
   2: 
   3: fprintf(iop, fmt, args)
   4: FILE *iop;
   5: char *fmt;
   6: {
   7:     _doprnt(fmt, &args, iop);
   8:     return(ferror(iop)? EOF: 0);
   9: }

Defined functions