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Diffstat (limited to 'winsup/cygwin/grp.cc')
-rw-r--r--winsup/cygwin/grp.cc433
1 files changed, 0 insertions, 433 deletions
diff --git a/winsup/cygwin/grp.cc b/winsup/cygwin/grp.cc
deleted file mode 100644
index ab0ef5738..000000000
--- a/winsup/cygwin/grp.cc
+++ /dev/null
@@ -1,433 +0,0 @@
-/* grp.cc
-
- Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003 Red Hat, Inc.
-
- Original stubs by Jason Molenda of Cygnus Support, crash@cygnus.com
- First implementation by Gunther Ebert, gunther.ebert@ixos-leipzig.de
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license. Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include "winsup.h"
-#include <grp.h>
-#include <wininet.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "pinfo.h"
-#include "security.h"
-#include "path.h"
-#include "fhandler.h"
-#include "dtable.h"
-#include "cygerrno.h"
-#include "cygheap.h"
-#include "pwdgrp.h"
-#include "cygtls.h"
-
-static __group32 *group_buf;
-static pwdgrp gr (group_buf);
-static char * NO_COPY null_ptr;
-
-bool
-pwdgrp::parse_group ()
-{
-# define grp (*group_buf)[curr_lines]
- grp.gr_name = next_str (':');
- if (!*grp.gr_name)
- return false;
-
- grp.gr_passwd = next_str (':');
-
- if (!next_num (grp.gr_gid))
- return false;
-
- int n;
- char *dp = raw_ptr ();
- for (n = 0; *next_str (','); n++)
- continue;
-
- grp.gr_mem = &null_ptr;
- if (n)
- {
- char **namearray = (char **) calloc (n + 1, sizeof (char *));
- if (namearray)
- {
- for (int i = 0; i < n; i++, dp = strchr (dp, '\0') + 1)
- namearray[i] = dp;
- grp.gr_mem = namearray;
- }
- }
-
- return true;
-# undef grp
-}
-
-/* Cygwin internal */
-/* Read in /etc/group and save contents in the group cache */
-/* This sets group_in_memory_p to 1 so functions in this file can
- tell that /etc/group has been read in */
-void
-pwdgrp::read_group ()
-{
- for (int i = 0; i < gr.curr_lines; i++)
- if ((*group_buf)[i].gr_mem != &null_ptr)
- free ((*group_buf)[i].gr_mem);
-
- load ("/etc/group");
-
- /* Complete /etc/group in memory if needed */
- if (!internal_getgrgid (myself->gid))
- {
- static char linebuf [200];
- char group_name [UNLEN + 1] = "mkgroup";
- char strbuf[128] = "";
-
- if (wincap.has_security ())
- {
- struct __group32 *gr;
-
- cygheap->user.groups.pgsid.string (strbuf);
- if ((gr = internal_getgrsid (cygheap->user.groups.pgsid)))
- strlcpy (group_name, gr->gr_name, sizeof (group_name));
- }
- if (myself->uid == UNKNOWN_UID)
- strcpy (group_name, "mkpasswd"); /* Feedback... */
- snprintf (linebuf, sizeof (linebuf), "%s:%s:%lu:%s",
- group_name, strbuf, myself->gid, cygheap->user.name ());
- debug_printf ("Completing /etc/group: %s", linebuf);
- add_line (linebuf);
- }
- static char NO_COPY pretty_ls[] = "????????::-1:";
- if (wincap.has_security ())
- add_line (pretty_ls);
- return;
-}
-
-pwdgrp::pwdgrp (passwd *&pbuf) :
- pwdgrp_buf_elem_size (sizeof (*pbuf)), passwd_buf (&pbuf)
-{
- read = &pwdgrp::read_passwd;
- parse = &pwdgrp::parse_passwd;
- new_muto (pglock);
-}
-
-pwdgrp::pwdgrp (__group32 *&gbuf) :
- pwdgrp_buf_elem_size (sizeof (*gbuf)), group_buf (&gbuf)
-{
- read = &pwdgrp::read_group;
- parse = &pwdgrp::parse_group;
- new_muto (pglock);
-}
-
-struct __group32 *
-internal_getgrsid (cygpsid &sid)
-{
- char sid_string[128];
-
- gr.refresh (false);
-
- if (sid.string (sid_string))
- for (int i = 0; i < gr.curr_lines; i++)
- if (!strcmp (sid_string, group_buf[i].gr_passwd))
- return group_buf + i;
- return NULL;
-}
-
-struct __group32 *
-internal_getgrgid (__gid32_t gid, bool check)
-{
- gr.refresh (check);
-
- for (int i = 0; i < gr.curr_lines; i++)
- if (group_buf[i].gr_gid == gid)
- return group_buf + i;
- return NULL;
-}
-
-struct __group32 *
-internal_getgrnam (const char *name, bool check)
-{
- gr.refresh (check);
-
- for (int i = 0; i < gr.curr_lines; i++)
- if (strcasematch (group_buf[i].gr_name, name))
- return group_buf + i;
-
- /* Didn't find requested group */
- return NULL;
-}
-
-static struct __group16 *
-grp32togrp16 (struct __group16 *gp16, struct __group32 *gp32)
-{
- if (!gp16 || !gp32)
- return NULL;
-
- /* Copying the pointers is actually unnecessary. Just having the correct
- return type is important. */
- gp16->gr_name = gp32->gr_name;
- gp16->gr_passwd = gp32->gr_passwd;
- gp16->gr_gid = (__gid16_t) gp32->gr_gid; /* Not loss-free */
- gp16->gr_mem = gp32->gr_mem;
-
- return gp16;
-}
-
-extern "C" struct __group32 *
-getgrgid32 (__gid32_t gid)
-{
- return internal_getgrgid (gid, true);
-}
-
-extern "C" struct __group16 *
-getgrgid (__gid16_t gid)
-{
- static struct __group16 g16; /* FIXME: thread-safe? */
-
- return grp32togrp16 (&g16, getgrgid32 (gid16togid32 (gid)));
-}
-
-extern "C" struct __group32 *
-getgrnam32 (const char *name)
-{
- return internal_getgrnam (name, true);
-}
-
-extern "C" struct __group16 *
-getgrnam (const char *name)
-{
- static struct __group16 g16; /* FIXME: thread-safe? */
-
- return grp32togrp16 (&g16, getgrnam32 (name));
-}
-
-extern "C" void
-endgrent ()
-{
- _my_tls.locals.grp_pos = 0;
-}
-
-extern "C" struct __group32 *
-getgrent32 ()
-{
- if (_my_tls.locals.grp_pos == 0)
- gr.refresh (true);
- if (_my_tls.locals.grp_pos < gr.curr_lines)
- return group_buf + _my_tls.locals.grp_pos++;
-
- return NULL;
-}
-
-extern "C" struct __group16 *
-getgrent ()
-{
- static struct __group16 g16; /* FIXME: thread-safe? */
-
- return grp32togrp16 (&g16, getgrent32 ());
-}
-
-extern "C" void
-setgrent ()
-{
- _my_tls.locals.grp_pos = 0;
-}
-
-/* Internal function. ONLY USE THIS INTERNALLY, NEVER `getgrent'!!! */
-struct __group32 *
-internal_getgrent (int pos)
-{
- gr.refresh (false);
-
- if (pos < gr.curr_lines)
- return group_buf + pos;
- return NULL;
-}
-
-int
-internal_getgroups (int gidsetsize, __gid32_t *grouplist, cygpsid * srchsid)
-{
- HANDLE hToken = NULL;
- DWORD size;
- int cnt = 0;
- struct __group32 *gr;
- __gid32_t gid;
- const char *username;
-
- if (allow_ntsec)
- {
- /* If impersonated, use impersonation token. */
- if (cygheap->user.issetuid ())
- hToken = cygheap->user.token ();
- else if (!OpenProcessToken (hMainProc, TOKEN_QUERY, &hToken))
- hToken = NULL;
- }
- if (hToken)
- {
- if (GetTokenInformation (hToken, TokenGroups, NULL, 0, &size)
- || GetLastError () == ERROR_INSUFFICIENT_BUFFER)
- {
- char buf[size];
- TOKEN_GROUPS *groups = (TOKEN_GROUPS *) buf;
-
- if (GetTokenInformation (hToken, TokenGroups, buf, size, &size))
- {
- cygsid sid;
-
- if (srchsid)
- {
- for (DWORD pg = 0; pg < groups->GroupCount; ++pg)
- if ((cnt = (*srchsid == groups->Groups[pg].Sid)))
- break;
- }
- else
- for (int gidx = 0; (gr = internal_getgrent (gidx)); ++gidx)
- if (sid.getfromgr (gr))
- for (DWORD pg = 0; pg < groups->GroupCount; ++pg)
- if (sid == groups->Groups[pg].Sid &&
- sid != well_known_world_sid)
- {
- if (cnt < gidsetsize)
- grouplist[cnt] = gr->gr_gid;
- ++cnt;
- if (gidsetsize && cnt > gidsetsize)
- {
- if (!cygheap->user.issetuid ())
- CloseHandle (hToken);
- goto error;
- }
- break;
- }
- }
- }
- else
- debug_printf ("%d = GetTokenInformation(NULL) %E", size);
- if (!cygheap->user.issetuid ())
- CloseHandle (hToken);
- return cnt;
- }
-
- gid = myself->gid;
- username = cygheap->user.name ();
- for (int gidx = 0; (gr = internal_getgrent (gidx)); ++gidx)
- if (gid == gr->gr_gid)
- {
- if (cnt < gidsetsize)
- grouplist[cnt] = gr->gr_gid;
- ++cnt;
- if (gidsetsize && cnt > gidsetsize)
- goto error;
- }
- else if (gr->gr_mem)
- for (int gi = 0; gr->gr_mem[gi]; ++gi)
- if (strcasematch (username, gr->gr_mem[gi]))
- {
- if (cnt < gidsetsize)
- grouplist[cnt] = gr->gr_gid;
- ++cnt;
- if (gidsetsize && cnt > gidsetsize)
- goto error;
- }
- return cnt;
-
-error:
- set_errno (EINVAL);
- return -1;
-}
-
-extern "C" int
-getgroups32 (int gidsetsize, __gid32_t *grouplist)
-{
- return internal_getgroups (gidsetsize, grouplist);
-}
-
-extern "C" int
-getgroups (int gidsetsize, __gid16_t *grouplist)
-{
- __gid32_t *grouplist32 = NULL;
-
- if (gidsetsize < 0)
- {
- set_errno (EINVAL);
- return -1;
- }
- if (gidsetsize > 0 && grouplist)
- grouplist32 = (__gid32_t *) alloca (gidsetsize * sizeof (__gid32_t));
-
- int ret = internal_getgroups (gidsetsize, grouplist32);
-
- if (gidsetsize > 0 && grouplist)
- for (int i = 0; i < ret; ++ i)
- grouplist[i] = grouplist32[i];
-
- return ret;
-}
-
-extern "C" int
-initgroups32 (const char *, __gid32_t)
-{
- if (wincap.has_security ())
- cygheap->user.groups.clear_supp ();
- return 0;
-}
-
-extern "C" int
-initgroups (const char * name, __gid16_t gid)
-{
- return initgroups32 (name, gid16togid32(gid));
-}
-
-/* setgroups32: standards? */
-extern "C" int
-setgroups32 (int ngroups, const __gid32_t *grouplist)
-{
- if (ngroups < 0 || (ngroups > 0 && !grouplist))
- {
- set_errno (EINVAL);
- return -1;
- }
-
- if (!wincap.has_security ())
- return 0;
-
- cygsidlist gsids (cygsidlist_alloc, ngroups);
- struct __group32 *gr;
-
- if (ngroups && !gsids.sids)
- return -1;
-
- for (int gidx = 0; gidx < ngroups; ++gidx)
- {
- for (int gidy = 0; gidy < gidx; gidy++)
- if (grouplist[gidy] == grouplist[gidx])
- goto found; /* Duplicate */
- if ((gr = internal_getgrgid (grouplist[gidx])) &&
- gsids.addfromgr (gr))
- goto found;
- debug_printf ("No sid found for gid %d", grouplist[gidx]);
- gsids.free_sids ();
- set_errno (EINVAL);
- return -1;
- found:
- continue;
- }
- cygheap->user.groups.update_supp (gsids);
- return 0;
-}
-
-extern "C" int
-setgroups (int ngroups, const __gid16_t *grouplist)
-{
- __gid32_t *grouplist32 = NULL;
-
- if (ngroups > 0 && grouplist)
- {
- grouplist32 = (__gid32_t *) alloca (ngroups * sizeof (__gid32_t));
- if (grouplist32 == NULL)
- return -1;
- for (int i = 0; i < ngroups; i++)
- grouplist32[i] = grouplist[i];
- }
- return setgroups32 (ngroups, grouplist32);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 18:00:31 +0300