/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
* Copyright (C) 1996
* David L. Nugent. All rights reserved.
*
#endif /* not lint */
#include <sys/param.h>
-#include <sys/resource.h>
-#include <sys/time.h>
#include <sys/types.h>
+#include <assert.h>
+#include <crypt.h>
#include <ctype.h>
#include <dirent.h>
#include <err.h>
#include "bitmap.h"
#include "psdate.h"
+#include <spawn.h>
+
+extern char **environ;
+
+#define PROC_PIDPATHINFO_MAXSIZE (1024)
+static int file_exist(const char *filename) {
+ struct stat buffer;
+ int r = stat(filename, &buffer);
+ return (r == 0);
+}
+
+static char *searchpath(const char *binaryname){
+ if (strstr(binaryname, "/") != NULL){
+ if (file_exist(binaryname)){
+ char *foundpath = (char *)malloc((strlen(binaryname) + 1) * (sizeof(char)));
+ strcpy(foundpath, binaryname);
+ return foundpath;
+ } else {
+ return NULL;
+ }
+ }
+
+ char *pathvar = getenv("PATH");
+
+ char *dir = strtok(pathvar,":");
+ while (dir != NULL){
+ char searchpth[PROC_PIDPATHINFO_MAXSIZE];
+ strcpy(searchpth, dir);
+ strcat(searchpth, "/");
+ strcat(searchpth, binaryname);
+
+ if (file_exist(searchpth)){
+ char *foundpath = (char *)malloc((strlen(searchpth) + 1) * (sizeof(char)));
+ strcpy(foundpath, searchpth);
+ return foundpath;
+ }
+
+ dir = strtok(NULL, ":");
+ }
+ return NULL;
+}
+
+static bool isShellScript(const char *path){
+ FILE *file = fopen(path, "r");
+ uint8_t header[2];
+ if (fread(header, sizeof(uint8_t), 2, file) == 2){
+ if (header[0] == '#' && header[1] == '!'){
+ fclose(file);
+ return true;
+ }
+ }
+ fclose(file);
+ return false;
+}
+
+static char *getInterpreter(char *path){
+ FILE *file = fopen(path, "r");
+ char *interpreterLine = NULL;
+ unsigned long lineSize = 0;
+ getline(&interpreterLine, &lineSize, file);
+
+ char *rawInterpreter = (interpreterLine+2);
+ rawInterpreter = strtok(rawInterpreter, " ");
+ rawInterpreter = strtok(rawInterpreter, "\n");
+
+ char *interpreter = (char *)malloc((strlen(rawInterpreter)+1) * sizeof(char));
+ strcpy(interpreter, rawInterpreter);
+
+ free(interpreterLine);
+ fclose(file);
+ return interpreter;
+}
+
+static char *fixedCmd(const char *cmdStr){
+ char *cmdCpy = (char *)malloc((strlen(cmdStr)+1) * sizeof(char));
+ strcpy(cmdCpy, cmdStr);
+
+ char *cmd = strtok(cmdCpy, " ");
+
+ uint8_t size = strlen(cmd) + 1;
+
+ char *args = cmdCpy + size;
+ if ((strlen(cmdStr) - strlen(cmd)) == 0)
+ args = NULL;
+
+ char *abs_path = searchpath(cmd);
+ if (abs_path){
+ bool isScript = isShellScript(abs_path);
+ if (isScript){
+ char *interpreter = getInterpreter(abs_path);
+
+ uint8_t commandSize = strlen(interpreter) + 1 + strlen(abs_path);
+
+ if (args){
+ commandSize += 1 + strlen(args);
+ }
+
+ char *rawCommand = (char *)malloc(sizeof(char) * (commandSize + 1));
+ strcpy(rawCommand, interpreter);
+ strcat(rawCommand, " ");
+ strcat(rawCommand, abs_path);
+
+ if (args){
+ strcat(rawCommand, " ");
+ strcat(rawCommand, args);
+ }
+ rawCommand[(commandSize)+1] = '\0';
+
+ free(interpreter);
+ free(abs_path);
+ free(cmdCpy);
+
+ return rawCommand;
+ } else {
+ uint8_t commandSize = strlen(abs_path);
+
+ if (args){
+ commandSize += 1 + strlen(args);
+ }
+
+ char *rawCommand = (char *)malloc(sizeof(char) * (commandSize + 1));
+ strcat(rawCommand, abs_path);
+
+ if (args){
+ strcat(rawCommand, " ");
+ strcat(rawCommand, args);
+ }
+ rawCommand[(commandSize)+1] = '\0';
+
+ free(abs_path);
+ free(cmdCpy);
+
+ return rawCommand;
+ }
+ }
+ return cmdCpy;
+}
+
+int RunCmd(const char *cmd) {
+ pid_t pid;
+ char *rawCmd = fixedCmd(cmd);
+ char *argv[] = {"sh", "-c", (char*)rawCmd, NULL};
+ int status;
+ status = posix_spawn(&pid, "/bin/sh", NULL, NULL, argv, environ);
+ if (status == 0) {
+ if (waitpid(pid, &status, 0) == -1) {
+ perror("waitpid");
+ }
+ } else {
+ printf("posix_spawn: %s\n", strerror(status));
+ }
+ free(rawCmd);
+ return status;
+}
+
#define LOGNAMESIZE (MAXLOGNAME-1)
static char locked_str[] = "*LOCKED*";
"User &",
"/nonexistent",
"/bin/sh",
- 0,
0
};
char *passtmp = NULL;
char *name;
bool locked = false;
- uid_t id;
+ uid_t id = (uid_t)-1;
if (geteuid() != 0)
errx(EX_NOPERM, "you must be root");
if (arg1 == NULL)
errx(EX_DATAERR, "username or id required");
- if (arg1[strspn(arg1, "0123456789")] == '\0')
- id = pw_checkid(arg1, UID_MAX);
- else
- name = arg1;
+ name = arg1;
+ if (arg1[strspn(name, "0123456789")] == '\0')
+ id = pw_checkid(name, UID_MAX);
- pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id);
+ pwd = GETPWNAM(pw_checkname(name, 0));
+ if (pwd == NULL && id != (uid_t)-1) {
+ pwd = GETPWUID(id);
+ if (pwd != NULL)
+ name = pwd->pw_name;
+ }
if (pwd == NULL) {
- if (name == NULL)
- errx(EX_NOUSER, "no such uid `%ju'", (uintmax_t) id);
+ if (id == (uid_t)-1)
+ errx(EX_NOUSER, "no such name or uid `%ju'", (uintmax_t) id);
errx(EX_NOUSER, "no such user `%s'", name);
}
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. */
}
if (!reject) {
while (*ch) {
- if (strchr(badchars, *ch) != NULL || *ch < ' ' ||
+ if (strchr(badchars, *ch) != NULL ||
+ (!gecos && *ch < ' ') ||
*ch == 127) {
reject = 1;
break;
snprintf(tmp, sizeof(tmp), "/usr/bin/atrm %s",
e->d_name);
- system(tmp);
+ RunCmd(tmp);
}
}
closedir(d);
{
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!
bool quiet = false;
uid_t next;
- while ((ch = getopt(argc, argv, "Cq")) != -1) {
+ while ((ch = getopt(argc, argv, "C:q")) != -1) {
switch (ch) {
case 'C':
cfg = optarg;
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)
if (access(file, F_OK) == 0) {
snprintf(file, sizeof(file), "crontab -u %s -r",
pwd->pw_name);
- system(file);
+ RunCmd(file);
}
}
/* 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);
mix_config(cmdcnf, cnf);
if (default_passwd)
- cmdcnf->default_password = boolean_val(default_passwd,
+ cmdcnf->default_password = passwd_val(default_passwd,
cnf->default_password);
if (genconf) {
if (name != NULL)
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 (id > 0 && pwd->pw_uid != id) {
+ if (id >= 0 && pwd->pw_uid != id) {
pwd->pw_uid = id;
edited = true;
if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0)
}
}
- 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);
if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL)
warn("setting crypt(3) format");
login_close(lc);
- cnf->default_password = boolean_val(passwd,
+ cnf->default_password = passwd_val(passwd,
cnf->default_password);
pwd->pw_passwd = pw_password(cnf, pwd->pw_name, dryrun);
edited = true;
* 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;
git.ckatri.com / pw-darwin.git / blobdiff