static char locked_str[] = "*LOCKED*";
-static int delete_user(struct userconf *cnf, struct passwd *pwd,
- char *name, int delete, int mode);
+static int pw_userdel(char *name, long id);
static int print_user(struct passwd * pwd);
static uid_t pw_uidpolicy(struct userconf * cnf, long id);
static uid_t pw_gidpolicy(struct cargs * args, char *nam, gid_t prefer);
static time_t pw_exppolicy(struct userconf * cnf, struct cargs * args);
static char *pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user);
static char *pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell);
-static char *pw_password(struct userconf * cnf, struct cargs * args, char const * user);
+static char *pw_password(struct userconf * cnf, char const * user);
static char *shell_path(char const * path, char *shells[], char *sh);
static void rmat(uid_t uid);
static void rmopie(char const * name);
static void
-create_and_populate_homedir(int mode, struct passwd *pwd)
+create_and_populate_homedir(struct passwd *pwd)
{
- char *homedir, *dotdir;
struct userconf *cnf = conf.userconf;
+ const char *skeldir;
+ int skelfd = -1;
- homedir = dotdir = NULL;
+ skeldir = cnf->dotdir;
- if (conf.rootdir[0] != '\0') {
- asprintf(&homedir, "%s/%s", conf.rootdir, pwd->pw_dir);
- if (homedir == NULL)
- errx(EX_OSERR, "out of memory");
- asprintf(&dotdir, "%s/%s", conf.rootdir, cnf->dotdir);
+ if (skeldir != NULL && *skeldir != '\0') {
+ skelfd = openat(conf.rootfd, cnf->dotdir,
+ O_DIRECTORY|O_CLOEXEC);
}
- copymkdir(homedir ? homedir : pwd->pw_dir, dotdir ? dotdir: cnf->dotdir,
- cnf->homemode, pwd->pw_uid, pwd->pw_gid);
- pw_log(cnf, mode, W_USER, "%s(%u) home %s made", pwd->pw_name,
+ copymkdir(conf.rootfd, pwd->pw_dir, skelfd, cnf->homemode, pwd->pw_uid,
+ pwd->pw_gid, 0);
+ pw_log(cnf, M_ADD, W_USER, "%s(%u) home %s made", pwd->pw_name,
pwd->pw_uid, pwd->pw_dir);
}
+static int
+set_passwd(struct passwd *pwd, bool update)
+{
+ int b, istty;
+ struct termios t, n;
+ login_cap_t *lc;
+ char line[_PASSWORD_LEN+1];
+ char *p;
+
+ if (conf.fd == '-') {
+ if (!pwd->pw_passwd || *pwd->pw_passwd != '*') {
+ pwd->pw_passwd = "*"; /* No access */
+ return (1);
+ }
+ return (0);
+ }
+
+ if ((istty = isatty(conf.fd))) {
+ if (tcgetattr(conf.fd, &t) == -1)
+ istty = 0;
+ else {
+ n = t;
+ n.c_lflag &= ~(ECHO);
+ tcsetattr(conf.fd, TCSANOW, &n);
+ printf("%s%spassword for user %s:",
+ update ? "new " : "",
+ conf.precrypted ? "encrypted " : "",
+ pwd->pw_name);
+ fflush(stdout);
+ }
+ }
+ b = read(conf.fd, line, sizeof(line) - 1);
+ if (istty) { /* Restore state */
+ tcsetattr(conf.fd, TCSANOW, &t);
+ fputc('\n', stdout);
+ fflush(stdout);
+ }
+
+ if (b < 0)
+ err(EX_IOERR, "-%c file descriptor",
+ conf.precrypted ? 'H' : 'h');
+ line[b] = '\0';
+ if ((p = strpbrk(line, "\r\n")) != NULL)
+ *p = '\0';
+ if (!*line)
+ errx(EX_DATAERR, "empty password read on file descriptor %d",
+ conf.fd);
+ if (conf.precrypted) {
+ if (strchr(line, ':') != NULL)
+ errx(EX_DATAERR, "bad encrypted password");
+ pwd->pw_passwd = line;
+ } else {
+ lc = login_getpwclass(pwd);
+ if (lc == NULL ||
+ login_setcryptfmt(lc, "sha512", NULL) == NULL)
+ warn("setting crypt(3) format");
+ login_close(lc);
+ pwd->pw_passwd = pw_pwcrypt(line);
+ }
+ return (1);
+}
+
+int
+pw_usernext(struct userconf *cnf, bool quiet)
+{
+ uid_t next = pw_uidpolicy(cnf, -1);
+
+ if (quiet)
+ return (next);
+
+ printf("%u:", next);
+ pw_groupnext(cnf, quiet);
+
+ return (EXIT_SUCCESS);
+}
+
+static int
+pw_usershow(char *name, long id, struct passwd *fakeuser)
+{
+ struct passwd *pwd = NULL;
+
+ if (id < 0 && name == NULL && !conf.all)
+ errx(EX_DATAERR, "username or id or '-a' required");
+
+ if (conf.all) {
+ SETPWENT();
+ while ((pwd = GETPWENT()) != NULL)
+ print_user(pwd);
+ ENDPWENT();
+ return (EXIT_SUCCESS);
+ }
+
+ pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
+ if (pwd == NULL) {
+ if (conf.force) {
+ pwd = fakeuser;
+ } else {
+ if (name == NULL)
+ errx(EX_NOUSER, "no such uid `%ld'", id);
+ errx(EX_NOUSER, "no such user `%s'", name);
+ }
+ }
+
+ return (print_user(pwd));
+}
+
+static void
+perform_chgpwent(const char *name, struct passwd *pwd)
+{
+ int rc;
+
+ rc = chgpwent(name, pwd);
+ if (rc == -1)
+ errx(EX_IOERR, "user '%s' does not exist (NIS?)", pwd->pw_name);
+ else if (rc != 0)
+ err(EX_IOERR, "passwd file update");
+
+ if (conf.userconf->nispasswd && *conf.userconf->nispasswd == '/') {
+ rc = chgnispwent(conf.userconf->nispasswd, name, pwd);
+ if (rc == -1)
+ warn("User '%s' not found in NIS passwd", pwd->pw_name);
+ else
+ warn("NIS passwd update");
+ /* NOTE: NIS-only update errors are not fatal */
+ }
+}
+
+/*
+ * The M_LOCK and M_UNLOCK functions simply add or remove
+ * a "*LOCKED*" prefix from in front of the password to
+ * prevent it decoding correctly, and therefore prevents
+ * access. Of course, this only prevents access via
+ * password authentication (not ssh, kerberos or any
+ * other method that does not use the UNIX password) but
+ * that is a known limitation.
+ */
+static int
+pw_userlock(char *name, long id, int mode)
+{
+ struct passwd *pwd = NULL;
+ char *passtmp = NULL;
+ bool locked = false;
+
+ if (id < 0 && name == NULL)
+ errx(EX_DATAERR, "username or id required");
+
+ pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
+ if (pwd == NULL) {
+ if (name == NULL)
+ errx(EX_NOUSER, "no such uid `%ld'", id);
+ errx(EX_NOUSER, "no such user `%s'", name);
+ }
+
+ if (name == NULL)
+ name = pwd->pw_name;
+
+ if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str) -1) == 0)
+ locked = true;
+ if (mode == M_LOCK && locked)
+ errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name);
+ if (mode == M_UNLOCK && !locked)
+ errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name);
+
+ if (mode == M_LOCK) {
+ asprintf(&passtmp, "%s%s", locked_str, pwd->pw_passwd);
+ if (passtmp == NULL) /* disaster */
+ errx(EX_UNAVAILABLE, "out of memory");
+ pwd->pw_passwd = passtmp;
+ } else {
+ pwd->pw_passwd += sizeof(locked_str)-1;
+ }
+
+ perform_chgpwent(name, pwd);
+ free(passtmp);
+
+ return (EXIT_SUCCESS);
+}
+
/*-
* -C config configuration file
* -q quiet operation
{
int rc, edited = 0;
char *p = NULL;
- char *passtmp;
struct carg *arg;
struct passwd *pwd = NULL;
struct group *grp;
static struct passwd fakeuser =
{
- NULL,
+ "nouser",
"*",
-1,
-1,
cnf = conf.userconf;
- /*
- * With M_NEXT, we only need to return the
- * next uid to stdout
- */
if (mode == M_NEXT)
- {
- uid_t next = pw_uidpolicy(cnf, id);
- if (getarg(args, 'q'))
- return next;
- printf("%u:", next);
- pw_group(mode, name, -1, args);
- return EXIT_SUCCESS;
- }
+ return (pw_usernext(cnf, conf.quiet));
+
+ if (mode == M_PRINT)
+ return (pw_usershow(name, id, &fakeuser));
+
+ if (mode == M_DELETE)
+ return (pw_userdel(name, id));
+
+ if (mode == M_LOCK || mode == M_UNLOCK)
+ return (pw_userlock(name, id, mode));
/*
* We can do all of the common legwork here
*p = '\0';
if (stat(dbuf, &st) == -1) {
if (mkdir(dbuf, _DEF_DIRMODE) == -1)
- goto direrr;
+ err(EX_OSFILE, "mkdir '%s'", dbuf);
chown(dbuf, 0, 0);
} else if (!S_ISDIR(st.st_mode))
errx(EX_OSFILE, "'%s' (root home parent) is not a directory", dbuf);
}
}
if (stat(dbuf, &st) == -1) {
- if (mkdir(dbuf, _DEF_DIRMODE) == -1) {
- direrr: err(EX_OSFILE, "mkdir '%s'", dbuf);
- }
+ if (mkdir(dbuf, _DEF_DIRMODE) == -1)
+ err(EX_OSFILE, "mkdir '%s'", dbuf);
chown(dbuf, 0, 0);
}
} else if (!S_ISDIR(st.st_mode))
cnf->default_class = pw_checkname(arg->val, 0);
if ((arg = getarg(args, 'G')) != NULL && arg->val) {
- int i = 0;
-
for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) {
if ((grp = GETGRNAM(p)) == NULL) {
if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL)
errx(EX_NOUSER, "group `%s' does not exist", p);
}
- if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1)
- cnf->groups[i++] = newstr(grp->gr_name);
+ sl_add(cnf->groups, newstr(grp->gr_name));
}
- while (i < cnf->numgroups)
- cnf->groups[i++] = NULL;
}
if ((arg = getarg(args, 'k')) != NULL) {
if ((arg = getarg(args, 'w')) != NULL)
cnf->default_password = boolean_val(arg->val, cnf->default_password);
if (mode == M_ADD && getarg(args, 'D')) {
- if (getarg(args, 'n') != NULL)
+ if (name != NULL)
errx(EX_DATAERR, "can't combine `-D' with `-n name'");
if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) {
if ((cnf->min_uid = (uid_t) atoi(p)) == 0)
cnf->max_gid = 32000;
}
- arg = getarg(args, 'C');
- if (write_userconfig(arg ? arg->val : NULL))
- return EXIT_SUCCESS;
+ if (write_userconfig(conf.config))
+ return (EXIT_SUCCESS);
err(EX_IOERR, "config udpate");
}
- if (mode == M_PRINT && getarg(args, 'a')) {
- SETPWENT();
- while ((pwd = GETPWENT()) != NULL)
- print_user(pwd);
- ENDPWENT();
- return EXIT_SUCCESS;
- }
-
if (name != NULL)
pwd = GETPWNAM(pw_checkname(name, 0));
errx(EX_DATAERR, "user name or id required");
/*
- * Update, delete & print require that the user exists
+ * Update require that the user exists
*/
- if (mode == M_UPDATE || mode == M_DELETE ||
- mode == M_PRINT || mode == M_LOCK || mode == M_UNLOCK) {
+ if (mode == M_UPDATE) {
if (name == NULL && pwd == NULL) /* Try harder */
pwd = GETPWUID(id);
if (pwd == NULL) {
- if (mode == M_PRINT && getarg(args, 'F')) {
- fakeuser.pw_name = name ? name : "nouser";
- fakeuser.pw_uid = (uid_t) id;
- return print_user(&fakeuser);
- }
if (name == NULL)
errx(EX_NOUSER, "no such uid `%ld'", id);
errx(EX_NOUSER, "no such user `%s'", name);
if (name == NULL)
name = pwd->pw_name;
- /*
- * The M_LOCK and M_UNLOCK functions simply add or remove
- * a "*LOCKED*" prefix from in front of the password to
- * prevent it decoding correctly, and therefore prevents
- * access. Of course, this only prevents access via
- * password authentication (not ssh, kerberos or any
- * other method that does not use the UNIX password) but
- * that is a known limitation.
- */
-
- if (mode == M_LOCK) {
- if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) == 0)
- errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name);
- asprintf(&passtmp, "%s%s", locked_str, pwd->pw_passwd);
- if (passtmp == NULL) /* disaster */
- errx(EX_UNAVAILABLE, "out of memory");
- pwd->pw_passwd = passtmp;
- edited = 1;
- } else if (mode == M_UNLOCK) {
- if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) != 0)
- errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name);
- pwd->pw_passwd += sizeof(locked_str)-1;
- edited = 1;
- } else if (mode == M_DELETE)
- return (delete_user(cnf, pwd, name,
- getarg(args, 'r') != NULL, mode));
- else if (mode == M_PRINT)
- return print_user(pwd);
-
/*
* The rest is edit code
*/
warnx("WARNING: home `%s' is not a directory", pwd->pw_dir);
}
- if ((arg = getarg(args, 'w')) != NULL &&
- getarg(args, 'h') == NULL && getarg(args, 'H') == NULL) {
+ if ((arg = getarg(args, 'w')) != NULL && conf.fd == -1) {
login_cap_t *lc;
lc = login_getpwclass(pwd);
login_setcryptfmt(lc, "sha512", NULL) == NULL)
warn("setting crypt(3) format");
login_close(lc);
- pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
+ pwd->pw_passwd = pw_password(cnf, pwd->pw_name);
edited = 1;
}
if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL)
warn("setting crypt(3) format");
login_close(lc);
- pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
+ pwd->pw_passwd = pw_password(cnf, pwd->pw_name);
edited = 1;
if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
/*
* Shared add/edit code
*/
- if ((arg = getarg(args, 'c')) != NULL) {
- char *gecos = pw_checkname(arg->val, 1);
- if (strcmp(pwd->pw_gecos, gecos) != 0) {
- pwd->pw_gecos = gecos;
+ if (conf.gecos != NULL) {
+ if (strcmp(pwd->pw_gecos, conf.gecos) != 0) {
+ pwd->pw_gecos = conf.gecos;
edited = 1;
}
}
- if ((arg = getarg(args, 'h')) != NULL ||
- (arg = getarg(args, 'H')) != NULL) {
- if (strcmp(arg->val, "-") == 0) {
- if (!pwd->pw_passwd || *pwd->pw_passwd != '*') {
- pwd->pw_passwd = "*"; /* No access */
- edited = 1;
- }
- } else {
- int fd = atoi(arg->val);
- int precrypt = (arg->ch == 'H');
- int b;
- int istty = isatty(fd);
- struct termios t;
- login_cap_t *lc;
-
- if (istty) {
- if (tcgetattr(fd, &t) == -1)
- istty = 0;
- else {
- struct termios n = t;
-
- /* Disable echo */
- n.c_lflag &= ~(ECHO);
- tcsetattr(fd, TCSANOW, &n);
- printf("%s%spassword for user %s:",
- (mode == M_UPDATE) ? "new " : "",
- precrypt ? "encrypted " : "",
- pwd->pw_name);
- fflush(stdout);
- }
- }
- b = read(fd, line, sizeof(line) - 1);
- if (istty) { /* Restore state */
- tcsetattr(fd, TCSANOW, &t);
- fputc('\n', stdout);
- fflush(stdout);
- }
- if (b < 0)
- err(EX_IOERR, "-%c file descriptor",
- precrypt ? 'H' : 'h');
- line[b] = '\0';
- if ((p = strpbrk(line, "\r\n")) != NULL)
- *p = '\0';
- if (!*line)
- errx(EX_DATAERR, "empty password read on file descriptor %d", fd);
- if (precrypt) {
- if (strchr(line, ':') != NULL)
- return EX_DATAERR;
- pwd->pw_passwd = line;
- } else {
- lc = login_getpwclass(pwd);
- if (lc == NULL ||
- login_setcryptfmt(lc, "sha512", NULL) == NULL)
- warn("setting crypt(3) format");
- login_close(lc);
- pwd->pw_passwd = pw_pwcrypt(line);
- }
- edited = 1;
- }
- }
+ if (conf.fd != -1)
+ edited = set_passwd(pwd, mode == M_UPDATE);
/*
* Special case: -N only displays & exits
warn("NIS passwd update");
/* NOTE: we treat NIS-only update errors as non-fatal */
}
- } else if (mode == M_UPDATE || mode == M_LOCK || mode == M_UNLOCK) {
- if (edited) { /* Only updated this if required */
- rc = chgpwent(name, pwd);
- if (rc == -1)
- errx(EX_IOERR, "user '%s' does not exist (NIS?)", pwd->pw_name);
- else if (rc != 0)
- err(EX_IOERR, "passwd file update");
- if ( cnf->nispasswd && *cnf->nispasswd=='/') {
- rc = chgnispwent(cnf->nispasswd, name, pwd);
- if (rc == -1)
- warn("User '%s' not found in NIS passwd", pwd->pw_name);
- else
- warn("NIS passwd update");
- /* NOTE: NIS-only update errors are not fatal */
- }
- }
- }
+ } else if (mode == M_UPDATE && edited) /* Only updated this if required */
+ perform_chgpwent(name, pwd);
/*
* Ok, user is created or changed - now edit group file
*/
if (mode == M_ADD || getarg(args, 'G') != NULL) {
- int i, j;
+ int j;
+ size_t i;
/* First remove the user from all group */
SETGRENT();
while ((grp = GETGRENT()) != NULL) {
ENDGRENT();
/* now add to group where needed */
- for (i = 0; cnf->groups[i] != NULL; i++) {
- grp = GETGRNAM(cnf->groups[i]);
+ for (i = 0; i < cnf->groups->sl_cur; i++) {
+ grp = GETGRNAM(cnf->groups->sl_str[i]);
grp = gr_add(grp, pwd->pw_name);
/*
* grp can only be NULL in 2 cases:
*/
if (grp == NULL)
continue;
- chggrent(cnf->groups[i], grp);
+ chggrent(grp->gr_name, grp);
free(grp);
}
}
*/
if (PWALTDIR() != PWF_ALT && getarg(args, 'm') != NULL && pwd->pw_dir &&
*pwd->pw_dir == '/' && pwd->pw_dir[1])
- create_and_populate_homedir(mode, pwd);
+ create_and_populate_homedir(pwd);
/*
* Finally, send mail to the new user as well, if we are asked to
(grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) {
gid = grp->gr_gid; /* Already created? Use it anyway... */
} else {
- struct cargs grpargs;
- char tmp[32];
-
- LIST_INIT(&grpargs);
+ gid_t grid = -1;
/*
* We need to auto-create a group with the user's name. We
* user's name dups an existing group, then the group add
* function will happily handle that case for us and exit.
*/
- if (GETGRGID(prefer) == NULL) {
- snprintf(tmp, sizeof(tmp), "%u", prefer);
- addarg(&grpargs, 'g', tmp);
- }
+ if (GETGRGID(prefer) == NULL)
+ grid = prefer;
if (conf.dryrun) {
- addarg(&grpargs, 'q', NULL);
- gid = pw_group(M_NEXT, nam, -1, &grpargs);
- }
- else
- {
- pw_group(M_ADD, nam, -1, &grpargs);
+ gid = pw_groupnext(cnf, true);
+ } else {
+ pw_group(M_ADD, nam, grid, NULL);
if ((grp = GETGRNAM(nam)) != NULL)
gid = grp->gr_gid;
}
- a_gid = LIST_FIRST(&grpargs);
- while (a_gid != NULL) {
- struct carg *t = LIST_NEXT(a_gid, list);
- LIST_REMOVE(a_gid, list);
- a_gid = t;
- }
}
ENDGRENT();
return gid;
static char *
-pw_password(struct userconf * cnf, struct cargs * args, char const * user)
+pw_password(struct userconf * cnf, char const * user)
{
int i, l;
char pwbuf[32];
/*
* We give this information back to the user
*/
- if (getarg(args, 'h') == NULL && getarg(args, 'H') == NULL &&
- !conf.dryrun) {
+ if (conf.fd == -1 && !conf.dryrun) {
if (isatty(STDOUT_FILENO))
printf("Password for '%s' is: ", user);
printf("%s\n", pwbuf);
}
static int
-delete_user(struct userconf *cnf, struct passwd *pwd, char *name,
- int delete, int mode)
+pw_userdel(char *name, long id)
{
+ struct passwd *pwd = NULL;
char file[MAXPATHLEN];
char home[MAXPATHLEN];
- uid_t uid = pwd->pw_uid;
+ uid_t uid;
struct group *gr, *grp;
char grname[LOGNAMESIZE];
int rc;
struct stat st;
+ if (id < 0 && name == NULL)
+ errx(EX_DATAERR, "username or id required");
+
+ pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
+ if (pwd == NULL) {
+ if (name == NULL)
+ errx(EX_NOUSER, "no such uid `%ld'", id);
+ errx(EX_NOUSER, "no such user `%s'", name);
+ }
+ uid = pwd->pw_uid;
+ if (name == NULL)
+ name = pwd->pw_name;
+
if (strcmp(pwd->pw_name, "root") == 0)
errx(EX_DATAERR, "cannot remove user 'root'");
else if (rc != 0)
err(EX_IOERR, "passwd update");
- if (cnf->nispasswd && *cnf->nispasswd=='/') {
- rc = delnispwent(cnf->nispasswd, name);
+ if (conf.userconf->nispasswd && *conf.userconf->nispasswd=='/') {
+ rc = delnispwent(conf.userconf->nispasswd, name);
if (rc == -1)
- warnx("WARNING: user '%s' does not exist in NIS passwd", pwd->pw_name);
+ warnx("WARNING: user '%s' does not exist in NIS passwd",
+ pwd->pw_name);
else if (rc != 0)
warn("WARNING: NIS passwd update");
/* non-fatal */
}
ENDGRENT();
- pw_log(cnf, mode, W_USER, "%s(%u) account removed", name, uid);
+ pw_log(conf.userconf, M_DELETE, W_USER, "%s(%u) account removed", name,
+ uid);
if (!PWALTDIR()) {
/*
/*
* Remove home directory and contents
*/
- if (delete && *home == '/' && getpwuid(uid) == NULL &&
+ if (conf.deletehome && *home == '/' && getpwuid(uid) == NULL &&
stat(home, &st) != -1) {
rm_r(home, uid);
- pw_log(cnf, mode, W_USER, "%s(%u) home '%s' %sremoved",
+ pw_log(conf.userconf, M_DELETE, W_USER, "%s(%u) home '%s' %sremoved",
name, uid, home,
stat(home, &st) == -1 ? "" : "not completely ");
}
git.ckatri.com / pw-darwin.git / blobdiff