diff options
Diffstat (limited to 'login/programs')
-rw-r--r-- | login/programs/pt_chown.c | 215 | ||||
-rw-r--r-- | login/programs/utmpdump.c | 99 |
2 files changed, 0 insertions, 314 deletions
diff --git a/login/programs/pt_chown.c b/login/programs/pt_chown.c deleted file mode 100644 index f12064bea5..0000000000 --- a/login/programs/pt_chown.c +++ /dev/null @@ -1,215 +0,0 @@ -/* pt_chmod - helper program for `grantpt'. - Copyright (C) 1998-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by C. Scott Ananian <cananian@alumni.princeton.edu>, 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <argp.h> -#include <errno.h> -#include <error.h> -#include <grp.h> -#include <libintl.h> -#include <locale.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <unistd.h> -#ifdef HAVE_LIBCAP -# include <sys/capability.h> -# include <sys/prctl.h> -#endif - -#include "pty-private.h" - -/* Get libc version number. */ -#include "../version.h" - -#define PACKAGE _libc_intl_domainname - -/* Name and version of program. */ -static void print_version (FILE *stream, struct argp_state *state); -void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; - -/* Function to print some extra text in the help message. */ -static char *more_help (int key, const char *text, void *input); - -/* Data structure to communicate with argp functions. */ -static struct argp argp = -{ - NULL, NULL, NULL, NULL, NULL, more_help -}; - - -/* Print the version information. */ -static void -print_version (FILE *stream, struct argp_state *state) -{ - fprintf (stream, "pt_chown %s%s\n", PKGVERSION, VERSION); - fprintf (stream, gettext ("\ -Copyright (C) %s Free Software Foundation, Inc.\n\ -This is free software; see the source for copying conditions. There is NO\n\ -warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ -"), "2017"); -} - -static char * -more_help (int key, const char *text, void *input) -{ - char *cp; - char *tp; - - switch (key) - { - case ARGP_KEY_HELP_PRE_DOC: - asprintf (&cp, gettext ("\ -Set the owner, group and access permission of the slave pseudo\ - terminal corresponding to the master pseudo terminal passed on\ - file descriptor `%d'. This is the helper program for the\ - `grantpt' function. It is not intended to be run directly from\ - the command line.\n"), - PTY_FILENO); - return cp; - case ARGP_KEY_HELP_EXTRA: - /* We print some extra information. */ - if (asprintf (&tp, gettext ("\ -For bug reporting instructions, please see:\n\ -%s.\n"), REPORT_BUGS_TO) < 0) - return NULL; - if (asprintf (&cp, gettext ("\ -The owner is set to the current user, the group is set to `%s',\ - and the access permission is set to `%o'.\n\n\ -%s"), - TTY_GROUP, S_IRUSR|S_IWUSR|S_IWGRP, tp) < 0) - { - free (tp); - return NULL; - } - return cp; - default: - break; - } - return (char *) text; -} - -static int -do_pt_chown (void) -{ - char *pty; - struct stat64 st; - struct group *p; - gid_t gid; - - /* Check that PTY_FILENO is a valid master pseudo terminal. */ - pty = ptsname (PTY_FILENO); - if (pty == NULL) - return errno == EBADF ? FAIL_EBADF : FAIL_EINVAL; - - /* Check that the returned slave pseudo terminal is a - character device. */ - if (stat64 (pty, &st) < 0 || !S_ISCHR (st.st_mode)) - return FAIL_EINVAL; - - /* Get the group ID of the special `tty' group. */ - p = getgrnam (TTY_GROUP); - gid = p ? p->gr_gid : getgid (); - - /* Set the owner to the real user ID, and the group to that special - group ID. */ - if (chown (pty, getuid (), gid) < 0) - return FAIL_EACCES; - - /* Set the permission mode to readable and writable by the owner, - and writable by the group. */ - if ((st.st_mode & ACCESSPERMS) != (S_IRUSR|S_IWUSR|S_IWGRP) - && chmod (pty, S_IRUSR|S_IWUSR|S_IWGRP) < 0) - return FAIL_EACCES; - - return 0; -} - - -int -main (int argc, char *argv[]) -{ - uid_t euid = geteuid (); - uid_t uid = getuid (); - int remaining; - sigset_t signalset; - - /* Clear any signal mask from the parent process. */ - sigemptyset (&signalset); - sigprocmask (SIG_SETMASK, &signalset, NULL); - - if (argc == 1 && euid == 0) - { -#ifdef HAVE_LIBCAP - /* Drop privileges. */ - if (uid != euid) - { - static const cap_value_t cap_list[] = - { CAP_CHOWN, CAP_FOWNER }; -# define ncap_list (sizeof (cap_list) / sizeof (cap_list[0])) - cap_t caps = cap_init (); - if (caps == NULL) - return FAIL_ENOMEM; - - /* There is no reason why these should not work. */ - cap_set_flag (caps, CAP_PERMITTED, ncap_list, cap_list, CAP_SET); - cap_set_flag (caps, CAP_EFFECTIVE, ncap_list, cap_list, CAP_SET); - - int res = cap_set_proc (caps); - - cap_free (caps); - - if (__glibc_unlikely (res != 0)) - return FAIL_EXEC; - } -#endif - - /* Normal invocation of this program is with no arguments and - with privileges. */ - return do_pt_chown (); - } - - /* We aren't going to be using privileges, so drop them right now. */ - setuid (uid); - - /* Set locale via LC_ALL. */ - setlocale (LC_ALL, ""); - - /* Set the text message domain. */ - textdomain (PACKAGE); - - /* parse and process arguments. */ - argp_parse (&argp, argc, argv, 0, &remaining, NULL); - - if (remaining < argc) - { - /* We should not be called with any non-option parameters. */ - error (0, 0, gettext ("too many arguments")); - argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR, - program_invocation_short_name); - return EXIT_FAILURE; - } - - /* Check if we are properly installed. */ - if (euid != 0) - error (FAIL_EXEC, 0, gettext ("needs to be installed setuid `root'")); - - return EXIT_SUCCESS; -} diff --git a/login/programs/utmpdump.c b/login/programs/utmpdump.c deleted file mode 100644 index 35bf0f9c27..0000000000 --- a/login/programs/utmpdump.c +++ /dev/null @@ -1,99 +0,0 @@ -/* utmpdump - dump utmp-like files. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> -#include <utmp.h> - -static void -print_entry (struct utmp *up) -{ - /* Mixed 32-/64-bit systems may have timeval structs of different sixe - but need struct utmp to be the same size. So in 64-bit up->ut_tv may - not be a timeval but a struct of __int32_t's. This would cause a compile - time warning and a formating error when 32-bit int is passed where - a 64-bit long is expected. So copy up->up_tv to a temporary timeval. - This is 32-/64-bit agnostic and expands the timeval fields to the - expected size as needed. */ - struct timeval temp_tv; - temp_tv.tv_sec = up->ut_tv.tv_sec; - temp_tv.tv_usec = up->ut_tv.tv_usec; - - (printf) ( - /* The format string. */ -#if _HAVE_UT_TYPE - "[%d] " -#endif -#if _HAVE_UT_PID - "[%05d] " -#endif -#if _HAVE_UT_ID - "[%-4.4s] " -#endif - "[%-8.8s] [%-12.12s]" -#if _HAVE_UT_HOST - " [%-16.16s]" -#endif - " [%-15.15s]" -#if _HAVE_UT_TV - " [%ld]" -#endif - "\n" - /* The arguments. */ -#if _HAVE_UT_TYPE - , up->ut_type -#endif -#if _HAVE_UT_PID - , up->ut_pid -#endif -#if _HAVE_UT_ID - , up->ut_id -#endif - , up->ut_user, up->ut_line -#if _HAVE_UT_HOST - , up->ut_host -#endif -#if _HAVE_UT_TV - , 4 + ctime (&temp_tv.tv_sec) - , (long int) temp_tv.tv_usec -#else - , 4 + ctime (&up->ut_time) -#endif - ); -} - -int -main (int argc, char *argv[]) -{ - struct utmp *up; - - if (argc > 1) - utmpname (argv[1]); - - setutent (); - - while ((up = getutent ())) - print_entry (up); - - endutent (); - - return EXIT_SUCCESS; -} |