/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
* Copyright (C) 1996
* David L. Nugent. All rights reserved.
*
#include <sys/param.h>
#include <sys/types.h>
+#include <assert.h>
+#include <crypt.h>
#include <ctype.h>
#include <dirent.h>
#include <err.h>
"User &",
"/nonexistent",
"/bin/sh",
- 0,
0
};
return shell_path(cnf->shelldir, cnf->shells, cnf->shell_default);
}
-#define SALTSIZE 32
static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./";
char *
pw_pwcrypt(char *password)
{
- int i;
- char salt[SALTSIZE + 1];
char *cryptpw;
static char buf[256];
+ size_t pwlen;
- /*
- * Calculate a salt value
- */
- for (i = 0; i < SALTSIZE; i++)
- salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)];
- salt[SALTSIZE] = '\0';
-
- cryptpw = crypt(password, salt);
+ cryptpw = crypt(password, crypt_gensalt("$6$", 0, chars, strlen(chars)));
if (cryptpw == NULL)
errx(EX_CONFIG, "crypt(3) failure");
- return strcpy(buf, cryptpw);
+ pwlen = strlcpy(buf, cryptpw, sizeof(buf));
+ assert(pwlen < sizeof(buf));
+ return (buf);
}
static char *
char pwbuf[32];
switch (cnf->default_password) {
- case -1: /* Random password */
+ case P_NONE: /* No password at all! */
+ return "";
+ case P_RANDOM: /* Random password */
l = (arc4random() % 8 + 8); /* 8 - 16 chars */
for (i = 0; i < l; i++)
pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)];
fflush(stdout);
}
break;
-
- case -2: /* No password at all! */
- return "";
-
- case 0: /* No login - default */
- default:
- return "*";
-
- case 1: /* user's name */
+ case P_YES: /* user's name */
strlcpy(pwbuf, user, sizeof(pwbuf));
break;
+ case P_NO: /* No login - default */
+ /* FALLTHROUGH */
+ default:
+ return "*";
}
return pw_pwcrypt(pwbuf);
}
}
if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL)
strftime(acexpire, sizeof acexpire, "%c", tptr);
- if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL)
+ if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL)
strftime(pwexpire, sizeof pwexpire, "%c", tptr);
printf("Login Name: %-15s #%-12ju Group: %-15s #%ju\n"
" Full Name: %s\n"
reject = 0;
if (gecos) {
/* See if the name is valid as a gecos (comment) field. */
- badchars = ":!@";
+ badchars = ":";
showtype = "gecos field";
} else {
/* See if the name is valid as a userid or group. */
{
char tmp[1014];
FILE *fp;
- int fd;
size_t len;
- off_t atofs = 0;
-
+ long atofs;
+ int fd;
+
if ((fd = openat(conf.rootfd, "etc/opiekeys", O_RDWR)) == -1)
return;
fp = fdopen(fd, "r+");
len = strlen(name);
- while (fgets(tmp, sizeof(tmp), fp) != NULL) {
+ for (atofs = 0; fgets(tmp, sizeof(tmp), fp) != NULL && atofs >= 0;
+ atofs = ftell(fp)) {
if (strncmp(name, tmp, len) == 0 && tmp[len]==' ') {
/* Comment username out */
if (fseek(fp, atofs, SEEK_SET) == 0)
fwrite("#", 1, 1, fp);
break;
}
- atofs = ftell(fp);
}
/*
* If we got an error of any sort, don't update!
errx(EX_NOUSER, "no such user `%s'", name);
}
- if (PWF._altdir == PWF_REGULAR &&
- ((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) {
- if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
- if (!nis && nispasswd && *nispasswd != '/')
- errx(EX_NOUSER, "Cannot remove NIS user `%s'",
- name);
- } else {
- errx(EX_NOUSER, "Cannot remove non local user `%s'",
- name);
- }
- }
-
id = pwd->pw_uid;
if (name == NULL)
name = pwd->pw_name;
- if (strcmp(pwd->pw_name, "root") == 0)
- errx(EX_DATAERR, "cannot remove user 'root'");
+ char *system_users[30] = {"nobody", "root", "mobile", "daemon", "_ftp", "_networkd", "_wireless", "_installd", "_neagent", "_ifccd", "_securityd", "_mdnsresponder", "_sshd", "_unknown", "_distnote", "_astris", "_ondemand", "_findmydevice", "_datadetectors", "_captiveagent", "_analyticsd", "_timed", "_gpsd", "_reportmemoryexception", "_diskimagesiod", "_logd", "_iconservices", "_fud", "_knowledgegraphd", "_coreml"};
+ for (int i = 0; i < 30; i++) {
+ if (strcmp(pwd->pw_name, system_users[i]) == 0)
+ errx(EX_DATAERR, "cannot remove user '%s'", system_users[i]);
+ }
/* Remove opie record from /etc/opiekeys */
if (PWALTDIR() != PWF_ALT)
/* Remove home directory and contents */
if (PWALTDIR() != PWF_ALT && deletehome && *home == '/' &&
- GETPWUID(id) == NULL &&
fstatat(conf.rootfd, home + 1, &st, 0) != -1) {
rm_r(conf.rootfd, home, id);
pw_log(cnf, M_DELETE, W_USER, "%s(%ju) home '%s' %s"
char *p;
char tok[] = ", \t";
+ if (*groups == NULL)
+ *groups = sl_init();
for (p = strtok(groupsstr, tok); p != NULL; p = strtok(NULL, tok)) {
grp = group_from_name_or_id(p);
- if (*groups == NULL)
- *groups = sl_init();
sl_add(*groups, newstr(grp->gr_name));
}
}
return (m);
}
+static long
+validate_expire(char *str, int opt)
+{
+ if (!numerics(str))
+ errx(EX_DATAERR, "-%c argument must be numeric "
+ "when setting defaults: %s", (char)opt, str);
+ return strtol(str, NULL, 0);
+}
+
static void
mix_config(struct userconf *cmdcnf, struct userconf *cfg)
{
- if (cmdcnf->default_password == 0)
+ if (cmdcnf->default_password < 0)
cmdcnf->default_password = cfg->default_password;
if (cmdcnf->reuse_uids == 0)
cmdcnf->reuse_uids = cfg->reuse_uids;
cmdcnf->min_gid = cfg->min_gid;
if (cmdcnf->max_gid == 0)
cmdcnf->max_gid = cfg->max_gid;
- if (cmdcnf->expire_days == 0)
+ if (cmdcnf->expire_days < 0)
cmdcnf->expire_days = cfg->expire_days;
- if (cmdcnf->password_days == 0)
+ if (cmdcnf->password_days < 0)
cmdcnf->password_days = cfg->password_days;
}
char line[_PASSWORD_LEN+1], path[MAXPATHLEN];
char *gecos, *homedir, *skel, *walk, *userid, *groupid, *grname;
char *default_passwd, *name, *p;
- const char *cfg;
+ const char *cfg = NULL;
login_cap_t *lc;
FILE *pfp, *fp;
intmax_t id = -1;
if ((cmdcnf = calloc(1, sizeof(struct userconf))) == NULL)
err(EXIT_FAILURE, "calloc()");
+ cmdcnf->default_password = cmdcnf->expire_days = cmdcnf->password_days = -1;
+ now = time(NULL);
+
if (arg1 != NULL) {
if (arg1[strspn(arg1, "0123456789")] == '\0')
id = pw_checkid(arg1, UID_MAX);
else
- name = arg1;
+ name = pw_checkname(arg1, 0);
}
while ((ch = getopt(argc, argv, args)) != -1) {
quiet = true;
break;
case 'n':
- name = optarg;
+ name = pw_checkname(optarg, 0);
break;
case 'u':
userid = optarg;
homedir = optarg;
break;
case 'e':
- now = time(NULL);
- cmdcnf->expire_days = parse_date(now, optarg);
+ if (genconf)
+ cmdcnf->expire_days = validate_expire(optarg, ch);
+ else
+ cmdcnf->expire_days = parse_date(now, optarg);
break;
case 'p':
- now = time(NULL);
- cmdcnf->password_days = parse_date(now, optarg);
+ if (genconf)
+ cmdcnf->password_days = validate_expire(optarg, ch);
+ else
+ cmdcnf->password_days = parse_date(now, optarg);
break;
case 'g':
validate_grname(cmdcnf, optarg);
if (GETPWNAM(name) != NULL)
errx(EX_DATAERR, "login name `%s' already exists", name);
+ if (!grname)
+ grname = cmdcnf->default_group;
+
pwd = &fakeuser;
pwd->pw_name = name;
pwd->pw_class = cmdcnf->default_class ? cmdcnf->default_class : "";
pwd->pw_uid = pw_uidpolicy(cmdcnf, id);
pwd->pw_gid = pw_gidpolicy(cnf, grname, pwd->pw_name,
(gid_t) pwd->pw_uid, dryrun);
- pwd->pw_change = cmdcnf->password_days;
- pwd->pw_expire = cmdcnf->expire_days;
+
+ split_groups(&cmdcnf->groups, grname);
+
+ /* cmdcnf->password_days and cmdcnf->expire_days hold unixtime here */
+ if (cmdcnf->password_days > 0)
+ pwd->pw_change = cmdcnf->password_days;
+ if (cmdcnf->expire_days > 0)
+ pwd->pw_expire = cmdcnf->expire_days;
+
pwd->pw_dir = pw_homepolicy(cmdcnf, homedir, pwd->pw_name);
pwd->pw_shell = pw_shellpolicy(cmdcnf);
lc = login_getpwclass(pwd);
struct group *grp;
StringList *groups = NULL;
char args[] = "C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:NPYy:";
- const char *cfg;
+ const char *cfg = NULL;
char *gecos, *homedir, *grname, *name, *newname, *walk, *skel, *shell;
char *passwd, *class, *nispasswd;
login_cap_t *lc;
intmax_t id = -1;
int ch, fd = -1;
size_t i, j;
- bool quiet, createhome, pretty, dryrun, nis, edited, docreatehome;
+ bool quiet, createhome, pretty, dryrun, nis, edited;
bool precrypted;
mode_t homemode = 0;
- time_t expire_days, password_days, now;
+ time_t expire_time, password_time, now;
- expire_days = password_days = -1;
+ expire_time = password_time = -1;
gecos = homedir = grname = name = newname = skel = shell =NULL;
passwd = NULL;
class = nispasswd = NULL;
quiet = createhome = pretty = dryrun = nis = precrypted = false;
- edited = docreatehome = false;
+ edited = false;
+ now = time(NULL);
if (arg1 != NULL) {
if (arg1[strspn(arg1, "0123456789")] == '\0')
homedir = optarg;
break;
case 'e':
- now = time(NULL);
- expire_days = parse_date(now, optarg);
+ expire_time = parse_date(now, optarg);
break;
case 'p':
- now = time(NULL);
- password_days = parse_date(now, optarg);
+ password_time = parse_date(now, optarg);
break;
case 'g':
group_from_name_or_id(optarg);
if (nis && nispasswd == NULL)
nispasswd = cnf->nispasswd;
- if (PWF._altdir == PWF_REGULAR &&
- ((pwd->pw_fields & _PWF_SOURCE) != _PWF_FILES)) {
- if ((pwd->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
- if (!nis && nispasswd && *nispasswd != '/')
- errx(EX_NOUSER, "Cannot modify NIS user `%s'",
- name);
- } else {
- errx(EX_NOUSER, "Cannot modify non local user `%s'",
- name);
- }
- }
-
if (newname) {
if (strcmp(pwd->pw_name, "root") == 0)
errx(EX_DATAERR, "can't rename `root' account");
}
}
- if (password_days >= 0 && pwd->pw_change != password_days) {
- pwd->pw_change = password_days;
+
+ if (password_time >= 0 && pwd->pw_change != password_time) {
+ pwd->pw_change = password_time;
edited = true;
}
- if (expire_days >= 0 && pwd->pw_expire != expire_days) {
- pwd->pw_expire = expire_days;
+ if (expire_time >= 0 && pwd->pw_expire != expire_time) {
+ pwd->pw_expire = expire_time;
edited = true;
}
if (!createhome)
warnx("WARNING: home `%s' does not exist",
pwd->pw_dir);
- else
- docreatehome = true;
} else if (!S_ISDIR(st.st_mode)) {
warnx("WARNING: home `%s' is not a directory",
pwd->pw_dir);
* that this also `works' for editing users if -m is used, but
* existing files will *not* be overwritten.
*/
- if (PWALTDIR() != PWF_ALT && docreatehome && pwd->pw_dir &&
+ if (PWALTDIR() != PWF_ALT && createhome && pwd->pw_dir &&
*pwd->pw_dir == '/' && pwd->pw_dir[1]) {
if (!skel)
skel = cnf->dotdir;
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