Re: [9fans] devenv

[erik quanstrom <quanstro@quanstro.net>]

; diffy -c ../port/portdat.h
/n/dump/2012/0224/sys/src/9/port/portdat.h:701,707 - ../port/portdat.h:701,707
  	char	*errstr;	/* reason we're unwinding the error stack, errbuf1 or 0 */
  	char	errbuf0[ERRMAX];
  	char	errbuf1[ERRMAX];
- 	char	genbuf[128];	/* buffer used e.g. for last name element from namec */
+ 	char	genbuf[ERRMAX];	/* buffer used e.g. for last name element from namec */
  	Chan	*slash;
  	Chan	*dot;

; diffy -c ../port/devenv.c
/n/dump/2012/0224/sys/src/9/port/devenv.c:8,13 - ../port/devenv.c:8,14
  enum
  {
  	Maxenvsize = 16300,
+ 	Maxename = ERRMAX-1,		/* sizeof(Proc->genbuf) */
  };

  static Egrp	*envgrp(Chan *c);
/n/dump/2012/0224/sys/src/9/port/devenv.c:146,151 - ../port/devenv.c:147,154

  	if(c->qid.type != QTDIR)
  		error(Eperm);
+ 	if(strlen(name) > Maxename)
+ 		error("name too long");

  	omode = openmode(omode);
  	eg = envgrp(c);