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* cygheap.h (cygheap_user::issetuid): New method.

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* dtable.cc (dtable::vfork_child_dup): Use new method to determine if we are in
"setuid mode."
* fork.cc (fork_parent): Ditto.
* spawn.cc (spawn_guts): Ditto.
* syscalls.cc (seteuid32): Ditto.
(setegid32): Ditto.
* environ.cc (spenv::retrieve): (Suggested by Pierre Humblet) Do potential
recalculation of cygheap_user stuff when in setuid mode.  Return special value
when environment variable exists but should not be added.
(build_env): Don't add retrieved value to dstp if it is 'dont_add'.
This commit is contained in:
Christopher Faylor
2002-06-16 23:34:43 +00:00
parent 45e9463a38
commit e40670ee48
7 changed files with 51 additions and 26 deletions
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11
winsup/cygwin/syscalls.cc
View File

@@ -2093,9 +2093,8 @@ seteuid32 (__uid32_t uid)
failed:
cygheap->user.token = sav_token;
cygheap->user.impersonated = sav_impersonated;
if ( cygheap->user.token != INVALID_HANDLE_VALUE &&
cygheap->user.impersonated &&
!ImpersonateLoggedOnUser (cygheap->user.token))
if (cygheap->user.issetuid ()
&& !ImpersonateLoggedOnUser (cygheap->user.token))
system_printf ("Impersonating in seteuid failed: %E");
return -1;
}
@@ -2144,8 +2143,7 @@ setegid32 (__gid32_t gid)
myself->gid = gid;
/* If impersonated, update primary group and revert */
if (cygheap->user.token != INVALID_HANDLE_VALUE
&& cygheap->user.impersonated)
if (cygheap->user.issetuid ())
{
if (!SetTokenInformation (cygheap->user.token,
TokenPrimaryGroup,
@@ -2166,8 +2164,7 @@ setegid32 (__gid32_t gid)
"TokenPrimaryGroup): %E");
CloseHandle (ptok);
}
if (cygheap->user.token != INVALID_HANDLE_VALUE
&& cygheap->user.impersonated
if (cygheap->user.issetuid ()
&& !ImpersonateLoggedOnUser (cygheap->user.token))
system_printf ("Impersonating in setegid failed: %E");
return 0;