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Diffstat (limited to 'winsup/cygwin/passwd.cc')
-rw-r--r--winsup/cygwin/passwd.cc415
1 files changed, 0 insertions, 415 deletions
diff --git a/winsup/cygwin/passwd.cc b/winsup/cygwin/passwd.cc
deleted file mode 100644
index c3bb7a115..000000000
--- a/winsup/cygwin/passwd.cc
+++ /dev/null
@@ -1,415 +0,0 @@
-/* passwd.cc: getpwnam () and friends
-
- Copyright 1996, 1997, 1998, 2001, 2002 Red Hat, Inc.
-
-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 <stdlib.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <errno.h>
-#include "cygerrno.h"
-#include "security.h"
-#include "fhandler.h"
-#include "path.h"
-#include "dtable.h"
-#include "pinfo.h"
-#include "cygheap.h"
-#include <sys/termios.h>
-#include "pwdgrp.h"
-
-/* Read /etc/passwd only once for better performance. This is done
- on the first call that needs information from it. */
-
-static struct passwd *passwd_buf; /* passwd contents in memory */
-static int curr_lines;
-static int max_lines;
-
-static pwdgrp_check passwd_state;
-
-
-/* Position in the passwd cache */
-#ifdef _MT_SAFE
-#define pw_pos _reent_winsup ()->_pw_pos
-#else
-static int pw_pos = 0;
-#endif
-
-/* Remove a : teminated string from the buffer, and increment the pointer */
-static char *
-grab_string (char **p)
-{
- char *src = *p;
- char *res = src;
-
- while (*src && *src != ':')
- src++;
-
- if (*src == ':')
- {
- *src = 0;
- src++;
- }
- *p = src;
- return res;
-}
-
-/* same, for ints */
-static unsigned int
-grab_int (char **p)
-{
- char *src = *p;
- unsigned int val = strtoul (src, p, 10);
- *p = (*p == src || **p != ':') ? almost_null : *p + 1;
- return val;
-}
-
-/* Parse /etc/passwd line into passwd structure. */
-static int
-parse_pwd (struct passwd &res, char *buf)
-{
- /* Allocate enough room for the passwd struct and all the strings
- in it in one go */
- res.pw_name = grab_string (&buf);
- res.pw_passwd = grab_string (&buf);
- res.pw_uid = grab_int (&buf);
- res.pw_gid = grab_int (&buf);
- if (!*buf)
- return 0;
- res.pw_comment = 0;
- res.pw_gecos = grab_string (&buf);
- res.pw_dir = grab_string (&buf);
- res.pw_shell = grab_string (&buf);
- return 1;
-}
-
-/* Add one line from /etc/passwd into the password cache */
-static void
-add_pwd_line (char *line)
-{
- if (curr_lines >= max_lines)
- {
- max_lines += 10;
- passwd_buf = (struct passwd *) realloc (passwd_buf, max_lines * sizeof (struct passwd));
- }
- if (parse_pwd (passwd_buf[curr_lines], line))
- curr_lines++;
-}
-
-class passwd_lock
-{
- bool armed;
- static NO_COPY pthread_mutex_t mutex;
- public:
- passwd_lock (bool doit)
- {
- if (doit)
- pthread_mutex_lock (&mutex);
- armed = doit;
- }
- ~passwd_lock ()
- {
- if (armed)
- pthread_mutex_unlock (&mutex);
- }
-};
-
-pthread_mutex_t NO_COPY passwd_lock::mutex = (pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER;
-
-/* Read in /etc/passwd and save contents in the password cache.
- This sets passwd_state to loaded or emulated so functions in this file can
- tell that /etc/passwd has been read in or will be emulated. */
-static void
-read_etc_passwd ()
-{
- static pwdgrp_read pr;
-
- /* A mutex is ok for speed here - pthreads will use critical sections not
- * mutexes for non-shared mutexes in the future. Also, this function will
- * at most be called once from each thread, after that the passwd_state
- * test will succeed */
- passwd_lock here (cygwin_finished_initializing);
-
- /* if we got blocked by the mutex, then etc_passwd may have been processed */
- if (passwd_state.isinitializing ())
- {
- curr_lines = 0;
- if (pr.open ("/etc/passwd"))
- {
- char *line;
- while ((line = pr.gets ()) != NULL)
- add_pwd_line (line);
-
- passwd_state.set_last_modified (pr.get_fhandle (), pr.get_fname ());
- pr.close ();
- debug_printf ("Read /etc/passwd, %d lines", curr_lines);
- }
- passwd_state = loaded;
-
- static char linebuf[1024];
- char strbuf[128] = "";
- BOOL searchentry = TRUE;
- __uid32_t default_uid = DEFAULT_UID;
- struct passwd *pw;
-
- if (wincap.has_security ())
- {
- cygsid tu = cygheap->user.sid ();
- tu.string (strbuf);
- if (myself->uid == ILLEGAL_UID
- && (searchentry = !internal_getpwsid (tu)))
- default_uid = DEFAULT_UID_NT;
- }
- else if (myself->uid == ILLEGAL_UID)
- searchentry = !internal_getpwuid (DEFAULT_UID);
- if (searchentry &&
- (!(pw = internal_getpwnam (cygheap->user.name ())) ||
- (myself->uid != ILLEGAL_UID &&
- myself->uid != (__uid32_t) pw->pw_uid &&
- !internal_getpwuid (myself->uid))))
- {
- snprintf (linebuf, sizeof (linebuf), "%s:*:%lu:%lu:,%s:%s:/bin/sh",
- cygheap->user.name (),
- myself->uid == ILLEGAL_UID ? default_uid : myself->uid,
- myself->gid,
- strbuf, getenv ("HOME") ?: "/");
- debug_printf ("Completing /etc/passwd: %s", linebuf);
- add_pwd_line (linebuf);
- }
- }
- return;
-}
-
-struct passwd *
-internal_getpwsid (cygsid &sid)
-{
- struct passwd *pw;
- char *ptr1, *ptr2, *endptr;
- char sid_string[128] = {0,','};
-
- if (passwd_state.isuninitialized ())
- read_etc_passwd ();
-
- if (sid.string (sid_string + 2))
- {
- endptr = strchr (sid_string + 2, 0) - 1;
- for (int i = 0; i < curr_lines; i++)
- if ((pw = passwd_buf + i)->pw_dir > pw->pw_gecos + 8)
- for (ptr1 = endptr, ptr2 = pw->pw_dir - 2;
- *ptr1 == *ptr2; ptr2--)
- if (!*--ptr1)
- return pw;
- }
- return NULL;
-}
-
-struct passwd *
-internal_getpwuid (__uid32_t uid, BOOL check)
-{
- if (passwd_state.isuninitialized ()
- || (check && passwd_state.isinitializing ()))
- read_etc_passwd ();
-
- for (int i = 0; i < curr_lines; i++)
- if (uid == (__uid32_t) passwd_buf[i].pw_uid)
- return passwd_buf + i;
- return NULL;
-}
-
-struct passwd *
-internal_getpwnam (const char *name, BOOL check)
-{
- if (passwd_state.isuninitialized ()
- || (check && passwd_state.isinitializing ()))
- read_etc_passwd ();
-
- for (int i = 0; i < curr_lines; i++)
- /* on Windows NT user names are case-insensitive */
- if (strcasematch (name, passwd_buf[i].pw_name))
- return passwd_buf + i;
- return NULL;
-}
-
-
-extern "C" struct passwd *
-getpwuid32 (__uid32_t uid)
-{
- struct passwd *temppw = internal_getpwuid (uid, TRUE);
- pthread_testcancel ();
- return temppw;
-}
-
-extern "C" struct passwd *
-getpwuid (__uid16_t uid)
-{
- return getpwuid32 (uid16touid32 (uid));
-}
-
-extern "C" int
-getpwuid_r32 (__uid32_t uid, struct passwd *pwd, char *buffer, size_t bufsize, struct passwd **result)
-{
- *result = NULL;
-
- if (!pwd || !buffer)
- return ERANGE;
-
- struct passwd *temppw = internal_getpwuid (uid, TRUE);
- pthread_testcancel ();
- if (!temppw)
- return 0;
-
- /* check needed buffer size. */
- size_t needsize = strlen (temppw->pw_name) + strlen (temppw->pw_dir) +
- strlen (temppw->pw_shell) + strlen (temppw->pw_gecos) +
- strlen (temppw->pw_passwd) + 5;
- if (needsize > bufsize)
- return ERANGE;
-
- /* make a copy of temppw */
- *result = pwd;
- pwd->pw_uid = temppw->pw_uid;
- pwd->pw_gid = temppw->pw_gid;
- pwd->pw_name = buffer;
- pwd->pw_dir = pwd->pw_name + strlen (temppw->pw_name) + 1;
- pwd->pw_shell = pwd->pw_dir + strlen (temppw->pw_dir) + 1;
- pwd->pw_gecos = pwd->pw_shell + strlen (temppw->pw_shell) + 1;
- pwd->pw_passwd = pwd->pw_gecos + strlen (temppw->pw_gecos) + 1;
- strcpy (pwd->pw_name, temppw->pw_name);
- strcpy (pwd->pw_dir, temppw->pw_dir);
- strcpy (pwd->pw_shell, temppw->pw_shell);
- strcpy (pwd->pw_gecos, temppw->pw_gecos);
- strcpy (pwd->pw_passwd, temppw->pw_passwd);
- return 0;
-}
-
-extern "C" int
-getpwuid_r (__uid16_t uid, struct passwd *pwd, char *buffer, size_t bufsize, struct passwd **result)
-{
- return getpwuid_r32 (uid16touid32 (uid), pwd, buffer, bufsize, result);
-}
-
-extern "C" struct passwd *
-getpwnam (const char *name)
-{
- struct passwd *temppw = internal_getpwnam (name, TRUE);
- pthread_testcancel ();
- return temppw;
-}
-
-
-/* the max size buffer we can expect to
- * use is returned via sysconf with _SC_GETPW_R_SIZE_MAX.
- * This may need updating! - Rob Collins April 2001.
- */
-extern "C" int
-getpwnam_r (const char *nam, struct passwd *pwd, char *buffer, size_t bufsize, struct passwd **result)
-{
- *result = NULL;
-
- if (!pwd || !buffer || !nam)
- return ERANGE;
-
- struct passwd *temppw = internal_getpwnam (nam, TRUE);
- pthread_testcancel ();
-
- if (!temppw)
- return 0;
-
- /* check needed buffer size. */
- size_t needsize = strlen (temppw->pw_name) + strlen (temppw->pw_dir) +
- strlen (temppw->pw_shell) + strlen (temppw->pw_gecos) +
- strlen (temppw->pw_passwd) + 5;
- if (needsize > bufsize)
- return ERANGE;
-
- /* make a copy of temppw */
- *result = pwd;
- pwd->pw_uid = temppw->pw_uid;
- pwd->pw_gid = temppw->pw_gid;
- pwd->pw_name = buffer;
- pwd->pw_dir = pwd->pw_name + strlen (temppw->pw_name) + 1;
- pwd->pw_shell = pwd->pw_dir + strlen (temppw->pw_dir) + 1;
- pwd->pw_gecos = pwd->pw_shell + strlen (temppw->pw_shell) + 1;
- pwd->pw_passwd = pwd->pw_gecos + strlen (temppw->pw_gecos) + 1;
- strcpy (pwd->pw_name, temppw->pw_name);
- strcpy (pwd->pw_dir, temppw->pw_dir);
- strcpy (pwd->pw_shell, temppw->pw_shell);
- strcpy (pwd->pw_gecos, temppw->pw_gecos);
- strcpy (pwd->pw_passwd, temppw->pw_passwd);
- return 0;
-}
-
-extern "C" struct passwd *
-getpwent (void)
-{
- if (passwd_state.isinitializing ())
- read_etc_passwd ();
-
- if (pw_pos < curr_lines)
- return passwd_buf + pw_pos++;
-
- return NULL;
-}
-
-extern "C" struct passwd *
-getpwduid (__uid16_t)
-{
- return NULL;
-}
-
-extern "C" void
-setpwent (void)
-{
- pw_pos = 0;
-}
-
-extern "C" void
-endpwent (void)
-{
- pw_pos = 0;
-}
-
-extern "C" int
-setpassent ()
-{
- return 0;
-}
-
-extern "C" char *
-getpass (const char * prompt)
-{
-#ifdef _MT_SAFE
- char *pass=_reent_winsup ()->_pass;
-#else
- static char pass[_PASSWORD_LEN];
-#endif
- struct termios ti, newti;
-
- if (passwd_state.isinitializing ())
- read_etc_passwd ();
-
- cygheap_fdget fhstdin (0);
-
- if (fhstdin < 0)
- pass[0] = '\0';
- else
- {
- fhstdin->tcgetattr (&ti);
- newti = ti;
- newti.c_lflag &= ~ECHO;
- fhstdin->tcsetattr (TCSANOW, &newti);
- fputs (prompt, stderr);
- fgets (pass, _PASSWORD_LEN, stdin);
- fprintf (stderr, "\n");
- for (int i=0; pass[i]; i++)
- if (pass[i] == '\r' || pass[i] == '\n')
- pass[i] = '\0';
- fhstdin->tcsetattr (TCSANOW, &ti);
- }
- return pass;
-}
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