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Diffstat (limited to 'winsup/cygwin/passwd.cc')
-rw-r--r--winsup/cygwin/passwd.cc288
1 files changed, 0 insertions, 288 deletions
diff --git a/winsup/cygwin/passwd.cc b/winsup/cygwin/passwd.cc
deleted file mode 100644
index a4ceda5..0000000
--- a/winsup/cygwin/passwd.cc
+++ /dev/null
@@ -1,288 +0,0 @@
-/* passwd.cc: getpwnam () and friends
-
- Copyright 1996, 1997, 1998 Cygnus Solutions.
-
-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 "fhandler.h"
-#include "dtable.h"
-#include "thread.h"
-#include "sync.h"
-#include "sigproc.h"
-#include "pinfo.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 = NULL; /* passwd contents in memory */
-static int curr_lines = 0;
-static int max_lines = 0;
-
-/* Set to loaded when /etc/passwd has been read in by read_etc_passwd ().
- Set to emulated if passwd is emulated. */
-/* Functions in this file need to check the value of passwd_state
- and read in the password file if it isn't set. */
-enum pwd_state {
- uninitialized = 0,
- emulated,
- loaded
-};
-static pwd_state passwd_state = uninitialized;
-
-/* 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 != '\n')
- src++;
-
- if (*src == ':')
- {
- *src = 0;
- src++;
- }
- *p = src;
- return res;
-}
-
-/* same, for ints */
-static int
-grab_int (char **p)
-{
- char *src = *p;
- int val = strtol (src, NULL, 10);
- while (*src && *src != ':' && *src != '\n')
- src++;
- if (*src == ':')
- src++;
- *p = src;
- return val;
-}
-
-/* Parse /etc/passwd line into passwd structure. */
-void
-parse_pwd (struct passwd &res, char *buf)
-{
- /* Allocate enough room for the passwd struct and all the strings
- in it in one go */
- size_t len = strlen (buf);
- char *mybuf = (char *) malloc (len + 1);
- (void) memcpy (mybuf, buf, len + 1);
- if (mybuf[--len] == '\n')
- mybuf[len] = '\0';
-
- res.pw_name = strlwr(grab_string (&mybuf));
- res.pw_passwd = grab_string (&mybuf);
- res.pw_uid = grab_int (&mybuf);
- res.pw_gid = grab_int (&mybuf);
- res.pw_comment = 0;
- res.pw_gecos = grab_string (&mybuf);
- res.pw_dir = grab_string (&mybuf);
- res.pw_shell = grab_string (&mybuf);
-}
-
-/* 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));
- }
- parse_pwd (passwd_buf[curr_lines++], line);
-}
-
-/* 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. */
-void
-read_etc_passwd ()
-{
- extern int passwd_sem;
- char linebuf[1024];
- ++passwd_sem;
- FILE *f = fopen ("/etc/passwd", "rt");
- --passwd_sem;
-
- if (f)
- {
- while (fgets (linebuf, sizeof (linebuf), f) != NULL)
- {
- if (strlen (linebuf))
- add_pwd_line (linebuf);
- }
-
- fclose (f);
- passwd_state = loaded;
- }
- else
- {
- debug_printf ("Emulating /etc/passwd");
- char user_name [ MAX_USER_NAME ];
- DWORD user_name_len = MAX_USER_NAME;
- if (! GetUserNameA (user_name, &user_name_len))
- {
- strncpy (user_name, "Administrator", MAX_USER_NAME);
- debug_printf ("Failed to get current user name. %E");
- }
- snprintf (linebuf, sizeof (linebuf), "%s::%u:%u::%s:/bin/sh", user_name,
- DEFAULT_UID, DEFAULT_GID, getenv ("HOME") ?: "/");
- add_pwd_line (linebuf);
- passwd_state = emulated;
- }
-}
-
-/* Cygwin internal */
-static struct passwd *
-search_for (uid_t uid, const char *name)
-{
- struct passwd *res = 0;
- struct passwd *default_pw = 0;
-
- for (int i = 0; i < curr_lines; i++)
- {
- res = passwd_buf + i;
- if (res->pw_uid == DEFAULT_UID)
- default_pw = res;
- /* on Windows NT user names are case-insensitive */
- if (name)
- {
- if (strcasematch (name, res->pw_name))
- return res;
- }
- else if (uid == res->pw_uid)
- return res;
- }
-
- /* Return default passwd entry if passwd is emulated or it's a
- request for the current user. */
- if (passwd_state != loaded
- || (! name && uid == myself->uid)
- || ( name && strcasematch(name, myself->username)))
- return default_pw;
-
- return NULL;
-}
-
-extern "C" struct passwd *
-getpwuid (uid_t uid)
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- return search_for (uid, 0);
-}
-
-extern "C" struct passwd *
-getpwnam (const char *name)
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- return search_for (0, name);
-}
-
-extern "C" struct passwd *
-getpwent (void)
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- if (pw_pos < curr_lines)
- return passwd_buf + pw_pos++;
-
- return NULL;
-}
-
-extern "C" struct passwd *
-getpwduid (uid_t)
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- return NULL;
-}
-
-extern "C" void
-setpwent (void)
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- pw_pos = 0;
-}
-
-extern "C" void
-endpwent (void)
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- pw_pos = 0;
-}
-
-extern "C" int
-setpassent ()
-{
- if (passwd_state == uninitialized)
- read_etc_passwd();
-
- 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 == uninitialized)
- read_etc_passwd();
-
- if (fdtab.not_open (0))
- {
- set_errno (EBADF);
- pass[0] = '\0';
- }
- else
- {
- fhandler_base *fhstdin = fdtab[0];
- 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;
-}
generated by cgit v1.1 at 2025-03-20 10:11:18 +0000