Re: logname in zsh-2.6b9

[hzoli@xxxxxxxxxx (Zoltan Hidvegi)]

> 
> After many months of happily using zsh-2.6-beta2, I just grabbed 
> zsh-2.6-beta9 from math.gatech.edu and tried to compile it.  My first
> attempt was unsuccessful, because somewhere between b2 and b9,
> 
> "EXTERN char *zlogname;" in globals.h, init.c, and params.c
> 
> was changed to
> 
> "EXTERN char *logname;"
> 
> which conflicts with logname(3), declared
> 
> "char *logname(void);" in <unistd.h>
> 
> (this is on HPUX 9.05 HP9000/715).
> 
> May I recommend that you revert to "zlogname"??

In my releases logname variable is completely missing. Also the LOGNAME
parameter is writable. Zsh use the logname variable only to store the value of
the LOGNAME special parameter. I already posted patches for that but it seems
that Richard does not like my patches too much. Here is a patch against
beta9. It makes HOSTTYPE, OSTYPE, MACHTYPE, VENDOR, ZSH_VERSION, LOGNAME and
USERNAME non-special parameters. They will behave exactly as before, except
that they are writable, these name can be used as local parameters etc. This
increases flexibility and simplifies the code.

Zoltan

*** Src/params.c.orig	Fri Jun  9 18:11:23 1995
--- Src/params.c	Fri Jun  9 18:09:33 1995
***************
*** 85,98 ****
  	IPDEF2("LANG", strgetfn, langsetfn, 0),
  #endif
  
- #define IPDEF3(A) {NULL,A,NULL,IFN(nullsetfn),IFN(strconstgetfn),0,PMFLAG_r|\
- 		PMFLAG_SPECIAL,NULL,NULL,NULL,NULL,0}
- 	IPDEF3("HOSTTYPE"),
- 	IPDEF3("OSTYPE"),
- 	IPDEF3("MACHTYPE"),
- 	IPDEF3("VENDOR"),
- 	IPDEF3("ZSH_VERSION"),
- 
  #define IPDEF4(A,B) {NULL,A,NULL,IFN(nullsetfn),IFN(intvargetfn),10,\
  		PMFLAG_r|PMFLAG_i|PMFLAG_SPECIAL,(void *)B,NULL,NULL,NULL,0}
  	IPDEF4("!", &lastpid),
--- 85,90 ----
***************
*** 121,130 ****
  
  #define IPDEF6(A,B) {NULL,A,NULL,IFN(nullsetfn),IFN(strvargetfn),0,\
  		PMFLAG_r|PMFLAG_SPECIAL,(void *)B,NULL,NULL,NULL,0}
- 	IPDEF6("LOGNAME", &logname),
  	IPDEF6("PWD", &pwd),
  	IPDEF6("TTY", &ttystrname),
- 	IPDEF6("USERNAME", &username),
  
  #define IPDEF7(A,B) {NULL,A,NULL,IFN(strvarsetfn),IFN(strvargetfn),0,\
  		PMFLAG_SPECIAL,(void *)B,NULL,NULL,NULL,0}
--- 113,120 ----
***************
*** 196,207 ****
  	addhnode(ztrdup(ip->nam), ip, paramtab, (FFunc) 0);
      argvparam = (Param) gethnode("argv", paramtab);
  
!     ((struct iparam *)gethnode("HOSTTYPE",   paramtab))->data = (void *) ztrdup(HOSTTYPE);
!     ((struct iparam *)gethnode("OSTYPE",     paramtab))->data = (void *) ztrdup(OSTYPE);
!     ((struct iparam *)gethnode("MACHTYPE",   paramtab))->data = (void *) ztrdup(MACHTYPE);
!     ((struct iparam *)gethnode("VENDOR",     paramtab))->data = (void *) ztrdup(VENDOR);
!     ((struct iparam *)gethnode("ZSH_VERSION",paramtab))->data = (void *) ztrdup(ZSH_VERSION);
! 
      noerrs = 1;
      for (envp = environ, ct = 2; *envp; envp++, ct++);
      envp = environ;
--- 186,192 ----
  	addhnode(ztrdup(ip->nam), ip, paramtab, (FFunc) 0);
      argvparam = (Param) gethnode("argv", paramtab);
  
!     setsparam("LOGNAME", ztrdup(username));
      noerrs = 1;
      for (envp = environ, ct = 2; *envp; envp++, ct++);
      envp = environ;
***************
*** 242,254 ****
      pm = (struct param *)gethnode("LOGNAME", paramtab);
      if (!(pm->flags & PMFLAG_x)) {
  	pm->flags |= PMFLAG_x;
! 	pm->env = addenv("LOGNAME", logname);
      }
      pm = (struct param *)gethnode("SHLVL", paramtab);
      if (!(pm->flags & PMFLAG_x))
  	pm->flags |= PMFLAG_x;
      sprintf(buf, "%d", (int)++shlvl);
      pm->env = addenv("SHLVL", buf);
      noerrs = 0;
  }
  
--- 227,245 ----
      pm = (struct param *)gethnode("LOGNAME", paramtab);
      if (!(pm->flags & PMFLAG_x)) {
  	pm->flags |= PMFLAG_x;
! 	pm->env = addenv("LOGNAME", pm->u.str);
      }
      pm = (struct param *)gethnode("SHLVL", paramtab);
      if (!(pm->flags & PMFLAG_x))
  	pm->flags |= PMFLAG_x;
      sprintf(buf, "%d", (int)++shlvl);
      pm->env = addenv("SHLVL", buf);
+     setsparam("HOSTTYPE", ztrdup(HOSTTYPE));
+     setsparam("OSTYPE", ztrdup(OSTYPE));
+     setsparam("MACHTYPE", ztrdup(MACHTYPE));
+     setsparam("VENDOR", ztrdup(VENDOR));
+     setsparam("ZSH_VERSION", ztrdup(ZSH_VERSION));
+     setsparam("USERNAME", ztrdup(username));
      noerrs = 0;
  }
  
*** Src/init.c.orig	Fri Jun  9 18:08:43 1995
--- Src/init.c	Fri Jun  9 18:09:47 1995
***************
*** 519,531 ****
      else
  	home = ztrdup("/");
  
!     if (!(logname = getlogin())) {
  	if (pswd)
! 	    logname = ztrdup(pswd->pw_name);
  	else
! 	    logname = ztrdup("");
      }
-     username = ztrdup(logname);
  
      /* Try a cheap test to see if we can *
       * initialize $PWD from $HOME        */
--- 519,530 ----
      else
  	home = ztrdup("/");
  
!     if (!(username = getlogin())) {
  	if (pswd)
! 	    username = ztrdup(pswd->pw_name);
  	else
! 	    username = ztrdup("");
      }
  
      /* Try a cheap test to see if we can *
       * initialize $PWD from $HOME        */