/* See the file wizshell.c, wizshell.h or the files in docs/ for information */

#include "wizshell.h"

void shout(str)
  char *str;
{
  who_t *tw;
  FILE *fp;

  tw=read_utmp(0);
  if(tw) tw=tw->next;
  while(tw) {
    if(tw->num3)    /* they are listening */
      if(!(fp=fopen(tw->str1,"a"))) {
        fprintf(stderr,"Could not open device file: %s\n",tw->str1);
      } else {
        fprintf(fp,"%s",str);
        fclose(fp);
      }
    tw=tw->next;
  }
}

void chat(str)
  char *str;
{
  char *tmp;

  if(str[0]=='\0') {
     fprintf(stderr,"Usage: chat <what>\n");
     return;
  }
  if(!envir.mesg)
    fprintf(stdout,"[You have messages turned off - type 'mesg y']\n");
  MK_STR(tmp,strlen(str)+strlen(envir.login)+4)
  sprintf(tmp,"%c%s: %s\n",toupper(envir.login[0]),envir.login+1,str);
  shout(tmp);
  FREE(tmp);
}

#define MESG_EFFECTS_TELL   /* I haven't decided yet :) */
void tell(str)
  char *str;
{
  char *what,*endword,c;
  who_t *tw;
  FILE *fp;
#ifdef MESG_EFFECTS_TELL
  int notlistening=0;
#endif

  if(str[0]=='\0') {
     fprintf(stderr,"Usage: tell <who> <what>\n");
     return;
  }
#ifdef MESG_EFFECTS_TELL
  if(!envir.mesg)
    fprintf(stdout,"[You have messages turned off - type 'mesg y']\n");
#endif
  endword=str;
  while(*endword!=' ' && *endword!='\t' && *endword!='\0') endword++;
  c=*endword;
  if(c=='\0') {
     fprintf(stderr,"Usage: tell <who> <what>\n");
     return;
  }
  what=eat_white(endword);
  *endword='\0';

  tw=read_utmp(0);
  if(tw) tw=tw->next;
  while(tw) {
    if(!strcmp(tw->str2,str)) {
#ifdef MESG_EFFECTS_TELL
      if(!tw->num3) {
        notlistening=1;
        tw=tw->next;
        continue;  /* see if they have another login that is listening */
      }
#endif
      if(!(fp=fopen(tw->str1,"a"))) {
        fprintf(stderr,"Could not open device file: %s\n",tw->str1);
      } else {
        fprintf(stderr,"You tell %c%s: %s\n",
                toupper(str[0]),str+1,what);
        fprintf(fp,"%c%s tells you: %s\n",
                toupper(*envir.login),envir.login+1,what);
        fclose(fp);
      }
      return;
    }
    tw=tw->next;
  }
#ifdef MESG_EFFECTS_TELL
  if(notlistening)
    fprintf(stderr,"%c%s has messages turned off.\n",toupper(str[0]),str+1);
  else
#endif
    fprintf(stderr,"%s is not logged in.\n",str);
  return;
}