/*
 *
 *  $Header: /ub/chuck/work/class/533/proj2/lib/RCS/xfgets.c,v 1.2 90/10/14 23:44:26 chuck Exp $
 *
 *  Charles D. Cranor
 *  Department of Computer Science
 *  Washington University
 *
 *  REVISION HISTORY:
 *
 *  $Revision: 1.2 $
 *
 *  $Log:	xfgets.c,v $
 * Revision 1.2  90/10/14  23:44:26  chuck
 * First working version.
 * 
 * Revision 1.1  90/10/14  21:42:17  chuck
 * Initial revision
 * 
 *
 */


/*
 * xfgets.c   Chuck Cranor  CS-533  project lib
 *
 * get a line!
 */

#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>

int xfgets(fd, buf, sz)

int fd, sz;
char *buf;

{
  int res = 0;
  int rd = 0;
  char *nln ;

  /* zero out buffer first */
  memset(buf, 0, sz) ;
  while (res < sz - 1) {
    if ((res = recv(fd, buf, sz - 1, MSG_PEEK)) < 0)
      return -1 ;
    if ((nln = strchr(buf, '\n')) != NULL) {
      *(nln+1) = 0 ;
      rd = strlen(buf) ;
      recv(fd, buf, rd, 0) ;
      *nln = 0 ;
      return rd - 1 ;
    }
  }
  return res ;			/* buffer fulled */
}