diff options
Diffstat (limited to 'winsup/cygwin/passwd.cc')
| -rw-r--r-- | winsup/cygwin/passwd.cc | 48 |
1 files changed, 40 insertions, 8 deletions
diff --git a/winsup/cygwin/passwd.cc b/winsup/cygwin/passwd.cc index ac1ecf8f0..b251264b7 100644 --- a/winsup/cygwin/passwd.cc +++ b/winsup/cygwin/passwd.cc @@ -160,14 +160,46 @@ read_etc_passwd () } else { - static char linebuf[400]; - - debug_printf ("Emulating /etc/passwd"); - snprintf (linebuf, sizeof (linebuf), "%s::%u:%u::%s:/bin/sh", - cygheap->user.name (), (unsigned) DEFAULT_UID, - (unsigned) DEFAULT_GID, getenv ("HOME") ?: "/"); - add_pwd_line (linebuf); - passwd_state = emulated; + static char linebuf[1024]; + + if (wincap.has_security ()) + { + HANDLE ptok; + cygsid tu, tg; + DWORD siz; + + if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &ptok)) + { + if (GetTokenInformation (ptok, TokenUser, &tu, sizeof tu, + &siz) + && GetTokenInformation (ptok, TokenPrimaryGroup, &tg, + sizeof tg, &siz)) + { + char strbuf[100]; + snprintf (linebuf, sizeof (linebuf), + "%s::%u:%u:%s:%s:/bin/sh", + cygheap->user.name (), + *GetSidSubAuthority(tu, + *GetSidSubAuthorityCount(tu) - 1), + *GetSidSubAuthority(tg, + *GetSidSubAuthorityCount(tg) - 1), + tu.string (strbuf), getenv ("HOME") ?: "/"); + debug_printf ("Emulating /etc/passwd: %s", linebuf); + add_pwd_line (linebuf); + passwd_state = emulated; + } + CloseHandle (ptok); + } + } + if (passwd_state != emulated) + { + snprintf (linebuf, sizeof (linebuf), "%s::%u:%u::%s:/bin/sh", + cygheap->user.name (), (unsigned) DEFAULT_UID, + (unsigned) DEFAULT_GID, getenv ("HOME") ?: "/"); + debug_printf ("Emulating /etc/passwd: %s", linebuf); + add_pwd_line (linebuf); + passwd_state = emulated; + } } } |