* cygheap.cc (cygheap_root::cygheap_root): New function.

(cygheap_root::~cygheap_root): Ditto.
        (cygheap_root::operator=): Ditto.
        (cygheap_user::~cygheap_user): Ditto.
        (cygheap_user::set_name): Ditto.
        (cygheap_user::set_logsrv): Ditto.
        (cygheap_user::set_domain): Ditto.
        (cygheap_user::set_sid): Ditto.
        * cygheap.h (cygheap_root): New class.
        (cygheap_user): Ditto.
        (init_cygheap): Change type of `root' member to cygheap_root.
        Add `user' member.
        * dir.cc (opendir): Use new `cygheap_root' class.
        * dcrt0.cc (dll_crt0_1): Use new `cygheap_user' class.
        * fork.cc (fork_parent): Ditto.
        * grp.cc (getgroups): Ditto.
        * passwd.cc (search_for): Ditto.
        * path.cc: Use new `cygheap_root' class throughout.
        * pinfo.h (_pinfo): Remove `use_psid'. Move `username', `psid',
        `logsrv', `domain', `orig_{uid,gid}' and `real_{uid,gid}' to
        cygheap_user class.
        * security.cc: Use new `cygheap_user' class throughout.
        * shared.cc (sec_user): Ditto.
        * sigproc.cc (proc_subproc): Remove copy statements for user
        related information moved to `cygheap_user' class.
        * spawn.cc (spawn_guts): Invalidate current chroot settings
        when creating Windows environment. Use new `cygheap_user' class.
        * syscalls.cc: Use new `cygheap_user' class throughout.
        * uinfo.cc: Ditto.
        * uinfo.cc (internal_getlogin): Change parameters to reflect the
        move of user information to cygheap.

winsup/cygwin/ChangeLog

@@ -1,3 +1,37 @@
+Wed Nov 15  0:51:00 2000  Corinna Vinschen <corinna@vinschen.de>
+
+	* cygheap.cc (cygheap_root::cygheap_root): New function.
+	(cygheap_root::~cygheap_root): Ditto.
+	(cygheap_root::operator=): Ditto.
+	(cygheap_user::~cygheap_user): Ditto.
+	(cygheap_user::set_name): Ditto.
+	(cygheap_user::set_logsrv): Ditto.
+	(cygheap_user::set_domain): Ditto.
+	(cygheap_user::set_sid): Ditto.
+	* cygheap.h (cygheap_root): New class.
+	(cygheap_user): Ditto.
+	(init_cygheap): Change type of `root' member to cygheap_root.
+	Add `user' member.
+	* dir.cc (opendir): Use new `cygheap_root' class.
+	* dcrt0.cc (dll_crt0_1): Use new `cygheap_user' class.
+	* fork.cc (fork_parent): Ditto.
+	* grp.cc (getgroups): Ditto.
+	* passwd.cc (search_for): Ditto.
+	* path.cc: Use new `cygheap_root' class throughout.
+	* pinfo.h (_pinfo): Remove `use_psid'. Move `username', `psid',
+	`logsrv', `domain', `orig_{uid,gid}' and `real_{uid,gid}' to
+	cygheap_user class.
+	* security.cc: Use new `cygheap_user' class throughout.
+	* shared.cc (sec_user): Ditto.
+	* sigproc.cc (proc_subproc): Remove copy statements for user
+	related information moved to `cygheap_user' class.
+	* spawn.cc (spawn_guts): Invalidate current chroot settings
+	when creating Windows environment. Use new `cygheap_user' class.
+	* syscalls.cc: Use new `cygheap_user' class throughout.
+	* uinfo.cc: Ditto.
+	* uinfo.cc (internal_getlogin): Change parameters to reflect the
+	move of user information to cygheap.
+
 Tue Nov 14 17:05:00 2000  Eric Fifer <efifer@dircon.co.uk>
 
 	* dir.cc (rewinddir): Always set __d_position = 0, so next

winsup/cygwin/cygheap.cc

@@ -279,3 +279,93 @@ cstrdup1 (const char *s)
   MALLOC_CHECK;
   return p;
 }
+
+cygheap_root::cygheap_root (cygheap_root &nroot)
+{
+  rootlen = nroot.rootlen;
+  root = nroot.root ? cstrdup (nroot.root) : NULL;
+}
+
+cygheap_root::~cygheap_root ()
+{
+  if (root)
+    cfree (root);
+}
+
+char *
+cygheap_root::operator =(const char *new_root)
+{
+  if (root)
+    {
+      cfree (root);
+      root = NULL;
+    }
+  rootlen = 0;
+  if (new_root && *new_root)
+    {
+      root = cstrdup (new_root);
+      rootlen = strlen (root);
+      if (rootlen > 1 && root[rootlen - 1] == '/')
+	root[--rootlen] = '\0';
+      if (!rootlen)
+	{
+	  cfree (root);
+	  root = NULL;
+	}
+    }
+  return root;
+}
+
+cygheap_user::~cygheap_user ()
+{
+  if (pname)
+    cfree (pname);
+  if (plogsrv)
+    cfree (plogsrv);
+  if (pdomain)
+    cfree (pdomain);
+  if (psid)
+    cfree (psid);
+}
+
+void
+cygheap_user::set_name (const char *new_name)
+{
+  if (pname)
+    cfree (pname);
+  pname = cstrdup (new_name ? new_name : "");
+}
+
+void
+cygheap_user::set_logsrv (const char *new_logsrv)
+{
+  if (plogsrv)
+    cfree (plogsrv);
+  plogsrv = (new_logsrv && *new_logsrv) ? cstrdup (new_logsrv) : NULL;
+}
+
+void
+cygheap_user::set_domain (const char *new_domain)
+{
+  if (pdomain)
+    cfree (pdomain);
+  pdomain = (new_domain && *new_domain) ? cstrdup (new_domain) : NULL;
+}
+
+BOOL
+cygheap_user::set_sid (PSID new_sid)
+{
+  if (!new_sid)
+    {
+      if (psid)
+        cfree (psid);
+      psid = NULL;
+      return TRUE;
+    }
+  else
+    {
+      if (!psid)
+	psid = cmalloc (HEAP_STR, MAX_SID_LEN);
+      return CopySid (MAX_SID_LEN, psid, new_sid);
+    }
+}

winsup/cygwin/cygheap.h

@@ -39,15 +39,64 @@ struct _cmalloc_entry
   char data[0];
 };
 
+class cygheap_root
+{
+  /* Root directory information.
+     This is used after a chroot is called. */
+  size_t rootlen;
+  char *root;
+public:
+  cygheap_root (cygheap_root &nroot);
+  ~cygheap_root ();
+  char *operator =(const char *new_root);
+  size_t length () const { return rootlen; }
+  const char *path () const { return root; }
+};
+
+class cygheap_user {
+  /* Extendend user information.
+     The information is derived from the internal_getlogin call
+     when on a NT system. */
+  char *pname;         /* user's name */
+  char *plogsrv;       /* Logon server, may be FQDN */
+  char *pdomain;       /* Logon domain of the user */
+  PSID  psid;          /* buffer for user's SID */
+
+public:
+  uid_t orig_uid;      /* Remains intact even after impersonation */
+  uid_t orig_gid;      /* Ditto */
+  uid_t real_uid;      /* Remains intact on seteuid, replaced by setuid */
+  gid_t real_gid;      /* Ditto */
+
+  cygheap_user () : pname (NULL), plogsrv (NULL), pdomain (NULL), psid (NULL) {}
+  ~cygheap_user ();
+
+  void set_name (const char *new_name);
+  const char *name () const { return pname; }
+
+  void set_logsrv (const char *new_logsrv);
+  const char *logsrv () const { return plogsrv; }
+
+  void set_domain (const char *new_domain);
+  const char *domain () const { return pdomain; }
+
+  BOOL set_sid (PSID new_sid);
+  PSID sid () const { return psid; }
+
+  void operator =(cygheap_user &user)
+    {
+      set_name (user.name ());
+      set_logsrv (user.logsrv ());
+      set_domain (user.domain ());
+      set_sid (user.sid ());
+    }
+};
 
 struct init_cygheap
 {
   _cmalloc_entry *chain;
-  struct
+  cygheap_root root;
-  {
+  cygheap_user user;
-    size_t rootlen;
-    char *root;
-  };
   mode_t umask;
 };
 

winsup/cygwin/dcrt0.cc

@@ -711,7 +711,7 @@ dll_crt0_1 ()
 	    ProtectHandle (child_proc_info->subproc_ready);
 	    myself->uid = spawn_info->moreinfo->uid;
 	    if (myself->uid == USHRT_MAX)
-	      myself->use_psid = 0;
+	      cygheap->user.set_sid (NULL);
 	    break;
 	}
     }

winsup/cygwin/dir.cc

@@ -76,7 +76,7 @@ opendir (const char *dirname)
       goto failed;
     }
 
-  if (stat (cygheap->rootlen ? dirname : real_dirname.get_win32 (),
+  if (stat (cygheap->root.length () ? dirname : real_dirname.get_win32 (),
 	    &statbuf) == -1)
     goto failed;
 

winsup/cygwin/fork.cc

@@ -402,7 +402,7 @@ fork_parent (void *stack_here, HANDLE& hParent, dll *&first_dll, bool& load_dlls
   uid_t uid;
   uid = geteuid();
   if (myself->impersonated && myself->token != INVALID_HANDLE_VALUE)
-    seteuid (myself->orig_uid);
+    seteuid (cygheap->user.orig_uid);
 
   ch.parent = hParent;
   ch.cygheap = cygheap;
@@ -474,7 +474,6 @@ fork_parent (void *stack_here, HANDLE& hParent, dll *&first_dll, bool& load_dlls
   forked->hProcess = pi.hProcess;
   forked->dwProcessId = pi.dwProcessId;
   forked->copysigs(myself);
-  memcpy (forked->username, myself->username, MAX_USER_NAME);
   set_child_mmap_ptr (forked);
   forked.remember ();
 

winsup/cygwin/grp.cc

@@ -19,6 +19,7 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include "cygheap.h"
 #include "cygerrno.h"
 
 /* Read /etc/group only once for better performance.  This is done
@@ -273,14 +274,7 @@ extern "C"
 int
 getgroups (int gidsetsize, gid_t *grouplist)
 {
-#if 0
+  return getgroups (gidsetsize, grouplist, myself->gid, cygheap->user.name ());
-  if (gidsetsize <= 0)
-      return 0;
-  grouplist[0] = myself->gid;
-  return 1;
-#else
-  return getgroups (gidsetsize, grouplist, myself->gid, myself->username);
-#endif
 }
 
 extern "C"

winsup/cygwin/passwd.cc

@@ -19,6 +19,7 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include "cygheap.h"
 #include <sys/termios.h>
 
 /* Read /etc/passwd only once for better performance.  This is done
@@ -179,7 +180,7 @@ search_for (uid_t uid, const char *name)
      request for the current user. */
   if (passwd_state != loaded
       || (!name && uid == myself->uid)
-      || (name && strcasematch(name, myself->username)))
+      || (name && strcasematch(name, cygheap->user.name ())))
     return default_pw;
 
   return NULL;

winsup/cygwin/path.cc

@@ -109,10 +109,11 @@ cwdstuff cygcwd;	/* The current working directory. */
    (isdirsep(path[cygwin_shared->mount.cygdrive_len + 1]) || \
     !path[cygwin_shared->mount.cygdrive_len + 1]))
 
-#define ischrootpath(path) \
+#define ischrootpath(p) \
-	(cygheap->rootlen && \
+	(cygheap->root.length () && \
-	 strncasematch (cygheap->root, path, cygheap->rootlen) && \
+	 strncasematch (cygheap->root.path (), p, cygheap->root.length ()) && \
-	 (path[cygheap->rootlen] == '/' || path[cygheap->rootlen] == '\0'))
+	 (p[cygheap->root.length ()] == '/' \
+	  || p[cygheap->root.length ()] == '\0'))
 
 /* Return non-zero if PATH1 is a prefix of PATH2.
    Both are assumed to be of the same path style and / vs \ usage.
@@ -615,7 +616,7 @@ normalize_posix_path (const char *src, char *dst)
   /* Two leading /'s?  If so, preserve them.  */
   else if (isslash (src[1]))
     {
-      if (cygheap->rootlen)
+      if (cygheap->root.length ())
 	{
 	  debug_printf ("ENOENT = normalize_posix_path (%s)", src);
 	  return ENOENT;
@@ -631,10 +632,10 @@ normalize_posix_path (const char *src, char *dst)
 	}
     }
   /* Exactly one leading slash. Absolute path. Check for chroot. */
-  else if (cygheap->rootlen)
+  else if (cygheap->root.length ())
     {
-      strcpy (dst, cygheap->root);
+      strcpy (dst, cygheap->root.path ());
-      dst += cygheap->rootlen;
+      dst += cygheap->root.length ();
     }
 
   while (*src)
@@ -669,7 +670,7 @@ normalize_posix_path (const char *src, char *dst)
 	      else
 		{
 		  if (!ischrootpath (dst_start) ||
-		      dst - dst_start != (int) cygheap->rootlen)
+		      dst - dst_start != (int) cygheap->root.length ())
 		    while (dst > dst_start && !isslash (*--dst))
 		      continue;
 		  src++;
@@ -718,7 +719,7 @@ normalize_win32_path (const char *src, char *dst)
   /* Two leading \'s?  If so, preserve them.  */
   else if (SLASH_P (src[0]) && SLASH_P (src[1]))
     {
-      if (cygheap->rootlen)
+      if (cygheap->root.length ())
 	{
 	  debug_printf ("ENOENT = normalize_win32_path (%s)", src);
 	  return ENOENT;
@@ -727,13 +728,13 @@ normalize_win32_path (const char *src, char *dst)
       ++src;
     }
   /* If absolute path, care for chroot. */
-  else if (SLASH_P (src[0]) && !SLASH_P (src[1]) && cygheap->rootlen)
+  else if (SLASH_P (src[0]) && !SLASH_P (src[1]) && cygheap->root.length ())
     {
-      strcpy (dst, cygheap->root);
+      strcpy (dst, cygheap->root.path ());
       char *c;
       while ((c = strchr (dst, '/')) != NULL)
 	*c = '\\';
-      dst += cygheap->rootlen;
+      dst += cygheap->root.length ();
       dst_root_start = dst;
       *dst++ = '\\';
     }
@@ -997,7 +998,7 @@ mount_info::conv_to_win32_path (const char *src_path, char *win32_path,
 	}
       isrelpath = !isabspath (src_path);
       *flags = set_flags_from_win32_path (dst);
-      if (cygheap->rootlen && dst[0] && dst[1] == ':')
+      if (cygheap->root.length () && dst[0] && dst[1] == ':')
 	{
 	  char posix_path[MAX_PATH + 1];
 
@@ -2939,9 +2940,10 @@ cwdstuff::get (char *buf, int need_posix, int with_chroot, unsigned ulen)
     tocopy = win32;
   else
     tocopy = with_chroot && ischrootpath(posix) ?
-	     posix + cygheap->rootlen : posix;
+	     posix + cygheap->root.length () : posix;
 
-  debug_printf("cygheap->root: %s, posix: %s", cygheap->root, posix);
+  debug_printf("cygheap->root: %s, posix: %s",
+  	       (const char *) cygheap->root.path (), posix);
   if (strlen (tocopy) >= ulen)
     {
       set_errno (ERANGE);

winsup/cygwin/pinfo.h

@@ -73,24 +73,11 @@ public:
   pid_t sid;		/* Session ID */
   int ctty;		/* Control tty */
   bool has_pgid_children;/* True if we've forked or spawned children with our GID. */
-  char username[MAX_USER_NAME]; /* user's name */
-
-  /* Extendend user information.
-     The information is derived from the internal_getlogin call
-     when on a NT system. */
-  int use_psid;		/* TRUE if psid contains valid data */
-  char psid[MAX_SID_LEN];  /* buffer for user's SID */
-  char logsrv[MAX_HOST_NAME]; /* Logon server, may be FQDN */
-  char domain[MAX_COMPUTERNAME_LENGTH+1]; /* Logon domain of the user */
 
   /* token is needed if sexec should be called. It can be set by a call
      to `set_impersonation_token()'. */
   HANDLE token;
   BOOL impersonated;
-  uid_t orig_uid;	/* Remains intact also after impersonation */
-  uid_t orig_gid;	/* Ditto */
-  uid_t real_uid;	/* Remains intact on seteuid, replaced by setuid */
-  gid_t real_gid;	/* Ditto */
 
   /* Resources used by process. */
   long start_time;

winsup/cygwin/security.cc

@@ -29,6 +29,7 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include "cygheap.h"
 #include "security.h"
 
 extern BOOL allow_ntea;
@@ -326,7 +327,7 @@ is_grp_member (uid_t uid, gid_t gid)
       gid_t grps[NGROUPS_MAX];
       int cnt = getgroups (NGROUPS_MAX, grps,
 			   pw ? pw->pw_gid : myself->gid,
-			   pw ? pw->pw_name : myself->username);
+			   pw ? pw->pw_name : cygheap->user.name ());
       int i;
       for (i = 0; i < cnt; ++i)
 	if (grps[i] == gid)
@@ -352,9 +353,9 @@ lookup_name (const char *name, const char *logsrv, PSID ret_sid)
   if (! name)
     return FALSE;
 
-  if (*myself->domain)
+  if (cygheap->user.domain ())
     {
-      strcat (strcat (strcpy (domuser, myself->domain), "\\"), name);
+      strcat (strcat (strcpy (domuser, cygheap->user.domain ()), "\\"), name);
       if (LookupAccountName (NULL, domuser,
 			     sid, (sidlen = MAX_SID_LEN, &sidlen),
 			     dom, (domlen = MAX_COMPUTERNAME_LENGTH, &domlen),
@@ -1138,7 +1139,7 @@ set_file_attribute (int use_ntsec, const char *file, int attribute)
 {
   return set_file_attribute (use_ntsec, file,
 			     myself->uid, myself->gid,
-			     attribute, myself->logsrv);
+			     attribute, cygheap->user.logsrv ());
 }
 
 static int

winsup/cygwin/shared.cc

@@ -17,6 +17,7 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include "cygheap.h"
 #include "shared_info.h"
 #include "registry.h"
 #include "cygwin_version.h"
@@ -219,9 +220,9 @@ sec_user (PVOID sa_buf, PSID sid2, BOOL inherit)
   char sid_buf[MAX_SID_LEN];
   PSID sid = (PSID) sid_buf;
 
-  if (myself->use_psid)
+  if (cygheap->user.sid ())
-    CopySid (MAX_SID_LEN, sid, myself->psid);
+    CopySid (MAX_SID_LEN, sid, (void *) cygheap->user.sid ());
-  else if (! lookup_name (getlogin (), myself->logsrv, sid))
+  else if (! lookup_name (getlogin (), cygheap->user.logsrv (), sid))
     return inherit ? &sec_none_nih : &sec_none;
 
   size_t acl_len = sizeof (ACL)

winsup/cygwin/sigproc.cc

@@ -263,18 +263,7 @@ proc_subproc (DWORD what, DWORD val)
       vchild->pgid = myself->pgid;
       vchild->sid = myself->sid;
       vchild->ctty = myself->ctty;
-      vchild->orig_uid = myself->orig_uid;
-      vchild->orig_gid = myself->orig_gid;
-      vchild->real_uid = myself->real_uid;
-      vchild->real_gid = myself->real_gid;
       vchild->impersonated = myself->impersonated;
-      if (myself->use_psid)
-        {
-          vchild->use_psid = 1;
-          memcpy (vchild->psid, myself->psid, MAX_SID_LEN);
-        }
-      memcpy (vchild->logsrv, myself->logsrv, MAX_HOST_NAME);
-      memcpy (vchild->domain, myself->domain, MAX_COMPUTERNAME_LENGTH+1);
       vchild->token = myself->token;
       vchild->process_state |= PID_INITIALIZING | (myself->process_state & PID_USETTY);
 

winsup/cygwin/spawn.cc

@@ -554,7 +554,12 @@ skip_arg_parsing:
   if (real_path.iscygexec ())
     envblock = NULL;
   else
+    {
+      cygheap_root sav_root (cygheap->root);
+      cygheap->root = NULL;
       envblock = winenv (envp, 0);
+      cygheap->root = sav_root;
+    }
 
   ciresrv.cygheap = cygheap;
   ciresrv.cygheap_max = cygheap_max;
@@ -625,7 +630,7 @@ skip_arg_parsing:
       /* Remove impersonation */
       uid_t uid = geteuid();
       if (myself->impersonated && myself->token != INVALID_HANDLE_VALUE)
-	seteuid (myself->orig_uid);
+	seteuid (cygheap->user.orig_uid);
 
       /* Load users registry hive. */
       load_registry_hive (sid);
@@ -705,7 +710,6 @@ skip_arg_parsing:
 	  syscall_printf ("-1 = spawnve (), process table full");
 	  return -1;
 	}
-      child->username[0] = '\0';
       child->progname[0] = '\0';
       child->dwProcessId = pi.dwProcessId;
       child->hProcess = pi.hProcess;

winsup/cygwin/syscalls.cc

@@ -704,7 +704,7 @@ chown_worker (const char *name, unsigned fmode, uid_t uid, gid_t gid)
 	  res = set_file_attribute (win32_path.has_acls (),
 				    win32_path.get_win32 (),
 				    uid, gid, attrib,
-				    myself->logsrv);
+				    cygheap->user.logsrv ());
 	}
       if (res != 0 && get_errno () == ENOSYS)
       {
@@ -815,7 +815,7 @@ chmod (const char *path, mode_t mode)
       if (! set_file_attribute (win32_path.has_acls (),
 				win32_path.get_win32 (),
 				uid, gid,
-				mode, myself->logsrv)
+				mode, cygheap->user.logsrv ())
 	  && allow_ntsec)
 	res = 0;
 
@@ -1796,7 +1796,7 @@ setgid (gid_t gid)
 {
   int ret = setegid (gid);
   if (!ret)
-    myself->real_gid = myself->gid;
+    cygheap->user.real_gid = myself->gid;
   return ret;
 }
 
@@ -1806,12 +1806,12 @@ setuid (uid_t uid)
 {
   int ret = seteuid (uid);
   if (!ret)
-    myself->real_uid = myself->uid;
+    cygheap->user.real_uid = myself->uid;
-  debug_printf ("real: %d, effective: %d", myself->real_uid, myself->uid);
+  debug_printf ("real: %d, effective: %d", cygheap->user.real_uid, myself->uid);
   return ret;
 }
 
-extern char *internal_getlogin (_pinfo *pi);
+extern const char *internal_getlogin (cygheap_user &user, HANDLE token);
 
 /* seteuid: standards? */
 extern "C" int
@@ -1830,7 +1830,7 @@ seteuid (uid_t uid)
 	    }
 
 	  if (uid != myself->uid)
-	    if (uid == myself->orig_uid)
+	    if (uid == cygheap->user.orig_uid)
 	      {
 		debug_printf ("RevertToSelf() (uid == orig_uid, token=%d)",
 			      myself->token);
@@ -1850,32 +1850,28 @@ seteuid (uid_t uid)
 		    myself->impersonated = TRUE;
 	      }
 
-	  struct _pinfo pi;
+	  cygheap_user user;
-	  /* pi.token is used in internal_getlogin() to determine if
+	  /* token is used in internal_getlogin() to determine if
 	     impersonation is active. If so, the token is used for
 	     retrieving user's SID. */
-	  pi.token = myself->impersonated ? myself->token
+	  HANDLE token = myself->impersonated ? myself->token
 					      : INVALID_HANDLE_VALUE;
-	  struct passwd *pw_cur = getpwnam (internal_getlogin (&pi));
+	  struct passwd *pw_cur = getpwnam (internal_getlogin (user, token));
 	  if (pw_cur != pw_new)
 	    {
 	      debug_printf ("Diffs!!! token: %d, cur: %d, new: %d, orig: %d",
 			    myself->token, pw_cur->pw_uid,
-			    pw_new->pw_uid, myself->orig_uid);
+			    pw_new->pw_uid, cygheap->user.orig_uid);
 	      set_errno (EPERM);
 	      return -1;
 	    }
 	  myself->uid = uid;
-	  strcpy (myself->username, pi.username);
+	  cygheap->user = user;
-	  strcpy (myself->logsrv, pi.logsrv);
-	  strcpy (myself->domain, pi.domain);
-	  memcpy (myself->psid, pi.psid, MAX_SID_LEN);
-	  myself->use_psid = 1;
 	}
     }
   else
     set_errno (ENOSYS);
-  debug_printf ("real: %d, effective: %d", myself->real_uid, myself->uid);
+  debug_printf ("real: %d, effective: %d", cygheap->user.real_uid, myself->uid);
   return 0;
 }
 
@@ -1930,11 +1926,7 @@ chroot (const char *newroot)
       set_errno (ret);
       goto done;
     }
-  cygheap->rootlen = strlen (cygheap->root);
+  cygheap->root = buf;
-  if (cygheap->rootlen > 1 && buf[cygheap->rootlen - 1] == '/')
-    buf[--cygheap->rootlen] = '\0';
-  cygheap->root = (char *) crealloc (cygheap->root, cygheap->rootlen + 1);
-  strcpy (cygheap->root, buf);
   ret = 0;
 
 done:

winsup/cygwin/uinfo.cc

@@ -20,18 +20,20 @@ details. */
 #include "sync.h"
 #include "sigproc.h"
 #include "pinfo.h"
+#include "cygheap.h"
 #include "registry.h"
 #include "security.h"
 
-char *
+const char *
-internal_getlogin (_pinfo *pi)
+internal_getlogin (cygheap_user &user, HANDLE token)
 {
-  if (! pi)
+  char username[MAX_USER_NAME];
-    api_fatal ("pinfo pointer is NULL!\n");
-
   DWORD username_len = MAX_USER_NAME;
-  if (! GetUserName (pi->username, &username_len))
+
-    strcpy (pi->username, "unknown");
+  if (! GetUserName (username, &username_len))
+    user.set_name ("unknown");
+  else
+    user.set_name (username);
   if (os_being_run == winNT)
     {
       LPWKSTA_USER_INFO_1 wui;
@@ -42,31 +44,37 @@ internal_getlogin (_pinfo *pi)
       if ((env = getenv ("USERNAME")) != NULL)
 	un = env;
       if ((env = getenv ("LOGONSERVER")) != NULL)
-	strcpy (pi->logsrv, env + 2); /* filter leading double backslashes */
+	user.set_logsrv (env + 2); /* filter leading double backslashes */
       if ((env = getenv ("USERDOMAIN")) != NULL)
-	strcpy (pi->domain, env);
+	user.set_domain (env);
       /* Trust only if usernames are identical */
-      if (un && strcasematch (pi->username, un)
+      if (un && strcasematch (user.name (), un)
-	  && pi->domain[0] && pi->logsrv[0])
+	  && user.domain () && user.logsrv ())
-	debug_printf ("Domain: %s, Logon Server: %s", pi->domain, pi->logsrv);
+	debug_printf ("Domain: %s, Logon Server: %s",
+		      user.domain (), user.logsrv ());
       /* If that failed, try to get that info from NetBIOS */
       else if (!NetWkstaUserGetInfo (NULL, 1, (LPBYTE *)&wui))
 	{
-	  sys_wcstombs (pi->username, wui->wkui1_username, MAX_USER_NAME);
+	  char buf[512];
-	  sys_wcstombs (pi->logsrv, wui->wkui1_logon_server, MAX_HOST_NAME);
+
-	  sys_wcstombs (pi->domain, wui->wkui1_logon_domain,
+	  sys_wcstombs (buf, wui->wkui1_username, MAX_USER_NAME);
+	  user.set_name (buf);
+	  sys_wcstombs (buf, wui->wkui1_logon_server, MAX_HOST_NAME);
+	  user.set_logsrv (buf);
+	  sys_wcstombs (buf, wui->wkui1_logon_domain,
 			MAX_COMPUTERNAME_LENGTH + 1);
+	  user.set_domain (buf);
 	  /* Save values in environment */
-	  if (!strcasematch (pi->username, "SYSTEM")
+	  if (!strcasematch (user.name (), "SYSTEM")
-	      && pi->domain[0] && pi->logsrv[0])
+	      && user.domain () && user.logsrv ())
 	    {
 	      LPUSER_INFO_3 ui = NULL;
 	      WCHAR wbuf[MAX_HOST_NAME + 2];
 
-	      strcat (strcpy (buf, "\\\\"), pi->logsrv);
+	      strcat (strcpy (buf, "\\\\"), user.logsrv ());
-	      setenv ("USERNAME", pi->username, 1);
+	      setenv ("USERNAME", user.name (), 1);
 	      setenv ("LOGONSERVER", buf, 1);
-	      setenv ("USERDOMAIN", pi->domain, 1);
+	      setenv ("USERDOMAIN", user.domain (), 1);
 	      /* HOMEDRIVE and HOMEPATH are wrong most of the time, too,
 		 after changing user context! */
 	      sys_mbstowcs (wbuf, buf, MAX_HOST_NAME + 2);
@@ -95,12 +103,12 @@ internal_getlogin (_pinfo *pi)
 		}
 	    }
 	  debug_printf ("Domain: %s, Logon Server: %s, Windows Username: %s",
-			pi->domain, pi->logsrv, pi->username);
+			user.domain (), user.logsrv (), user.name ());
 	  NetApiBufferFree (wui);
 	}
       if (allow_ntsec)
 	{
-	  HANDLE ptok = pi->token; /* Which is INVALID_HANDLE_VALUE if no
+	  HANDLE ptok = token; /* Which is INVALID_HANDLE_VALUE if no
 				      impersonation took place. */
 	  DWORD siz;
 	  char tu[1024];
@@ -116,29 +124,28 @@ internal_getlogin (_pinfo *pi)
 	  else if (!GetTokenInformation (ptok, TokenUser, (LPVOID) &tu,
 					 sizeof tu, &siz))
 	    debug_printf ("GetTokenInformation(): %E");
-	  else if (!(ret = CopySid (MAX_SID_LEN, (PSID) pi->psid,
+	  else if (!(ret = user.set_sid (((TOKEN_USER *) &tu)->User.Sid)))
-				    ((TOKEN_USER *) &tu)->User.Sid)))
 	    debug_printf ("Couldn't retrieve SID from access token!");
 	  /* Close token only if it's a result from OpenProcessToken(). */
-	  if (ptok != INVALID_HANDLE_VALUE && pi->token == INVALID_HANDLE_VALUE)
+	  if (ptok != INVALID_HANDLE_VALUE && token == INVALID_HANDLE_VALUE)
 	    CloseHandle (ptok);
 
 	  /* If that failes, try to get the SID from localhost. This can only
 	     be done if a domain is given because there's a chance that a local
 	     and a domain user may have the same name. */
-	  if (!ret && pi->domain[0])
+	  if (!ret && user.domain ())
 	    {
 	      /* Concat DOMAIN\USERNAME for the next lookup */
-	      strcat (strcat (strcpy (buf, pi->domain), "\\"), pi->username);
+	      strcat (strcat (strcpy (buf, user.domain ()), "\\"), user.name ());
-	      if (!(ret = lookup_name (buf, NULL, (PSID) pi->psid)))
+	      if (!(ret = lookup_name (buf, NULL, user.sid ())))
 		debug_printf ("Couldn't retrieve SID locally!");
 	    }
 
 	  /* If that failes, too, as a last resort try to get the SID from
 	     the logon server. */
-	  if (!ret && !(ret = lookup_name(pi->username, pi->logsrv,
+	  if (!ret && !(ret = lookup_name(user.name (), user.logsrv (),
-					  (PSID)pi->psid)))
+					  user.sid ())))
-	    debug_printf ("Couldn't retrieve SID from '%s'!", pi->logsrv);
+	    debug_printf ("Couldn't retrieve SID from '%s'!", user.logsrv ());
 
 	  /* If we have a SID, try to get the corresponding Cygwin user name
 	     which can be different from the Windows user name. */
@@ -148,31 +155,29 @@ internal_getlogin (_pinfo *pi)
 	      char psidbuf[MAX_SID_LEN];
 	      PSID psid = (PSID) psidbuf;
 
-	      pi->use_psid = 1;
+	      if (!strcasematch (user.name (), "SYSTEM")
-	      if (!strcasematch (pi->username, "SYSTEM")
+		  && user.domain () && user.logsrv ())
-		  && pi->domain[0] && pi->logsrv[0])
 		{
-		  if (get_registry_hive_path (pi->psid, buf))
+		  if (get_registry_hive_path (user.sid (), buf))
 		    setenv ("USERPROFILE", buf, 1);
 		}
 	      while ((pw = getpwent ()) != NULL)
-		if (get_pw_sid (psid, pw) && EqualSid (pi->psid, psid))
+		if (get_pw_sid (psid, pw) && EqualSid (user.sid (), psid))
 		  {
-		    strcpy (pi->username, pw->pw_name);
+		    user.set_name (pw->pw_name);
 		    break;
 		  }
 	      endpwent ();
 	    }
 	}
     }
-  debug_printf ("Cygwins Username: %s", pi->username);
+  debug_printf ("Cygwins Username: %s", user.name ());
-  return pi->username;
+  return user.name ();
 }
 
 void
 uinfo_init ()
 {
-  char *username;
   struct passwd *p;
 
   /* Initialize to non impersonated values.
@@ -185,7 +190,8 @@ uinfo_init ()
   /* If uid is USHRT_MAX, the process is started from a non cygwin
      process or the user context was changed in spawn.cc */
   if (myself->uid == USHRT_MAX)
-    if ((p = getpwnam (username = internal_getlogin (myself))) != NULL)
+    if ((p = getpwnam (internal_getlogin (cygheap->user,
+  					  INVALID_HANDLE_VALUE))) != NULL)
       {
 	myself->uid = p->pw_uid;
 	myself->gid = p->pw_gid;
@@ -197,8 +203,8 @@ uinfo_init ()
       }
   /* Real and effective uid/gid are always identical on process start up.
      This is at least true for NT/W2K. */
-  myself->orig_uid = myself->real_uid = myself->uid;
+  cygheap->user.orig_uid = cygheap->user.real_uid = myself->uid;
-  myself->orig_gid = myself->real_gid = myself->gid;
+  cygheap->user.orig_gid = cygheap->user.real_gid = myself->gid;
 }
 
 extern "C" char *
@@ -210,19 +216,19 @@ getlogin (void)
   static NO_COPY char this_username[MAX_USER_NAME];
 #endif
 
-  return strcpy (this_username, myself->username);
+  return strcpy (this_username, cygheap->user.name ());
 }
 
 extern "C" uid_t
 getuid (void)
 {
-  return myself->real_uid;
+  return cygheap->user.real_uid;
 }
 
 extern "C" gid_t
 getgid (void)
 {
-  return myself->real_gid;
+  return cygheap->user.real_gid;
 }
 
 extern "C" uid_t