diff options
Diffstat (limited to 'usr.sbin/vipw/pw_util.c')
| -rw-r--r-- | usr.sbin/vipw/pw_util.c | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/usr.sbin/vipw/pw_util.c b/usr.sbin/vipw/pw_util.c deleted file mode 100644 index 1c163d2..0000000 --- a/usr.sbin/vipw/pw_util.c +++ /dev/null @@ -1,258 +0,0 @@ -/*- - * Copyright (c) 1990, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -#if 0 -static const char sccsid[] = "@(#)pw_util.c 8.3 (Berkeley) 4/2/94"; -#endif -static const char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -/* - * This file is used by all the "password" programs; vipw(8), chpass(1), - * and passwd(1). - */ - -#include <sys/param.h> -#include <sys/errno.h> -#include <sys/time.h> -#include <sys/resource.h> -#include <sys/stat.h> -#include <sys/wait.h> - -#include <err.h> -#include <fcntl.h> -#include <paths.h> -#include <pwd.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "pw_util.h" - -extern char *tempname; -static pid_t editpid = -1; -static int lockfd; -static char _default_editor[] = _PATH_VI; -static char _default_mppath[] = _PATH_PWD; -static char _default_masterpasswd[] = _PATH_MASTERPASSWD; -char *mppath = _default_mppath; -char *masterpasswd = _default_masterpasswd; - -void pw_cont(int); - -void -pw_cont(int sig) -{ - - if (editpid != -1) - kill(editpid, sig); -} - -void -pw_init(void) -{ - struct rlimit rlim; - - /* Unlimited resource limits. */ - rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY; - (void)setrlimit(RLIMIT_CPU, &rlim); - (void)setrlimit(RLIMIT_FSIZE, &rlim); - (void)setrlimit(RLIMIT_STACK, &rlim); - (void)setrlimit(RLIMIT_DATA, &rlim); - (void)setrlimit(RLIMIT_RSS, &rlim); - - /* Don't drop core (not really necessary, but GP's). */ - rlim.rlim_cur = rlim.rlim_max = 0; - (void)setrlimit(RLIMIT_CORE, &rlim); - - /* Turn off signals. */ - (void)signal(SIGALRM, SIG_IGN); - (void)signal(SIGHUP, SIG_IGN); - (void)signal(SIGINT, SIG_IGN); - (void)signal(SIGPIPE, SIG_IGN); - (void)signal(SIGQUIT, SIG_IGN); - (void)signal(SIGTERM, SIG_IGN); - (void)signal(SIGCONT, pw_cont); - - /* Create with exact permissions. */ - (void)umask(0); -} - -int -pw_lock(void) -{ - /* - * If the master password file doesn't exist, the system is hosed. - * Might as well try to build one. Set the close-on-exec bit so - * that users can't get at the encrypted passwords while editing. - * Open should allow flock'ing the file; see 4.4BSD. XXX - */ - for (;;) { - struct stat st; - - lockfd = open(masterpasswd, O_RDONLY, 0); - if (lockfd < 0 || fcntl(lockfd, F_SETFD, 1) == -1) - err(1, "%s", masterpasswd); - if (flock(lockfd, LOCK_EX|LOCK_NB)) - errx(1, "the password db file is busy"); - - /* - * If the password file was replaced while we were trying to - * get the lock, our hardlink count will be 0 and we have to - * close and retry. - */ - if (fstat(lockfd, &st) < 0) - errx(1, "fstat() failed"); - if (st.st_nlink != 0) - break; - close(lockfd); - lockfd = -1; - } - return (lockfd); -} - -int -pw_tmp(void) -{ - static char path[MAXPATHLEN]; - int fd; - char *p; - - strncpy(path, masterpasswd, MAXPATHLEN - 1); - path[MAXPATHLEN] = '\0'; - - if ((p = strrchr(path, '/'))) - ++p; - else - p = path; - strcpy(p, "pw.XXXXXX"); - if ((fd = mkstemp(path)) == -1) - err(1, "%s", path); - tempname = path; - return (fd); -} - -int -pw_mkdb(const char *username) -{ - int pstat; - pid_t pid; - - (void)fflush(stderr); - if (!(pid = fork())) { - if(!username) { - warnx("rebuilding the database..."); - execl(_PATH_PWD_MKDB, "pwd_mkdb", "-p", "-d", mppath, - tempname, (char *)NULL); - } else { - warnx("updating the database..."); - execl(_PATH_PWD_MKDB, "pwd_mkdb", "-p", "-d", mppath, - "-u", username, tempname, (char *)NULL); - } - pw_error(_PATH_PWD_MKDB, 1, 1); - } - pid = waitpid(pid, &pstat, 0); - if (pid == -1 || !WIFEXITED(pstat) || WEXITSTATUS(pstat) != 0) - return (0); - warnx("done"); - return (1); -} - -void -pw_edit(int notsetuid) -{ - int pstat; - char *p, *editor; - - if (!(editor = getenv("EDITOR"))) - editor = _default_editor; - if ((p = strrchr(editor, '/'))) - ++p; - else - p = editor; - - if (!(editpid = fork())) { - if (notsetuid) { - (void)setgid(getgid()); - (void)setuid(getuid()); - } - errno = 0; - execlp(editor, p, tempname, (char *)NULL); - _exit(errno); - } - for (;;) { - editpid = waitpid(editpid, (int *)&pstat, WUNTRACED); - errno = WEXITSTATUS(pstat); - if (editpid == -1) - pw_error(editor, 1, 1); - else if (WIFSTOPPED(pstat)) - raise(WSTOPSIG(pstat)); - else if (WIFEXITED(pstat) && errno == 0) - break; - else - pw_error(editor, 1, 1); - } - editpid = -1; -} - -void -pw_prompt(void) -{ - int c, first; - - (void)printf("re-edit the password file? [y]: "); - (void)fflush(stdout); - first = c = getchar(); - while (c != '\n' && c != EOF) - c = getchar(); - if (first == 'n') - pw_error(NULL, 0, 0); -} - -void -pw_error(const char *name, int error, int eval) -{ - if (error) { - if (name != NULL) - warn("%s", name); - else - warn(NULL); - } - warnx("password information unchanged"); - (void)unlink(tempname); - exit(eval); -} |
