* 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.
- *
- * $Id: pw_user.c,v 1.4 1996/12/17 01:43:30 davidn Exp $
+ *
*/
-#include <unistd.h>
-#include <fcntl.h>
+#ifndef lint
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
#include <ctype.h>
-#include <paths.h>
+#include <err.h>
+#include <fcntl.h>
#include <sys/param.h>
#include <dirent.h>
+#include <paths.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
-#include <md5.h>
+#include <unistd.h>
+#include <login_cap.h>
#include "pw.h"
#include "bitmap.h"
-#include "pwupd.h"
-static int print_user(struct passwd * pwd, int pretty);
+#define LOGNAMESIZE (MAXLOGNAME-1)
+
+static char locked_str[] = "*LOCKED*";
+
+static int print_user(struct passwd * pwd, int pretty, int v7);
static uid_t pw_uidpolicy(struct userconf * cnf, struct cargs * args);
static uid_t pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer);
static time_t pw_pwdpolicy(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_checkname(char *name, int gecos);
static char *shell_path(char const * path, char *shells[], char *sh);
static void rmat(uid_t uid);
+static void rmopie(char const * name);
/*-
* -C config configuration file
* -L class user class
* -l name new login name
* -h fd password filehandle
+ * -H fd encrypted password filehandle
* -F force print or add
* Setting defaults:
* -D set user defaults
int
pw_user(struct userconf * cnf, int mode, struct cargs * args)
{
+ int rc, edited = 0;
char *p = NULL;
+ char *passtmp;
struct carg *a_name;
struct carg *a_uid;
struct carg *arg;
struct passwd *pwd = NULL;
struct group *grp;
struct stat st;
- char line[MAXPWLINE];
+ char line[_PASSWORD_LEN+1];
+ FILE *fp;
+ mode_t dmode;
+ char *dmode_c;
+ void *set = NULL;
static struct passwd fakeuser =
{
0,
"",
"User &",
+ "/nonexistent",
"/bin/sh",
- 0,
0
+#if defined(__FreeBSD__)
+ ,0
+#endif
};
+
/*
* With M_NEXT, we only need to return the
* next uid to stdout
if ((arg = getarg(args, 'b')) != NULL) {
cnf->home = arg->val;
- if (stat(cnf->home, &st) == -1 || !S_ISDIR(st.st_mode))
- cmderr(EX_OSFILE, "root home `%s' is not a directory or does not exist\n", cnf->home);
}
+
+ if ((arg = getarg(args, 'M')) != NULL) {
+ dmode_c = arg->val;
+ if ((set = setmode(dmode_c)) == NULL)
+ errx(EX_DATAERR, "invalid directory creation mode '%s'",
+ dmode_c);
+ dmode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO);
+ free(set);
+ cnf->homemode = dmode;
+ }
+
+ /*
+ * If we'll need to use it or we're updating it,
+ * then create the base home directory if necessary
+ */
+ if (arg != NULL || getarg(args, 'm') != NULL) {
+ int l = strlen(cnf->home);
+
+ if (l > 1 && cnf->home[l-1] == '/') /* Shave off any trailing path delimiter */
+ cnf->home[--l] = '\0';
+
+ if (l < 2 || *cnf->home != '/') /* Check for absolute path name */
+ errx(EX_DATAERR, "invalid base directory for home '%s'", cnf->home);
+
+ if (stat(cnf->home, &st) == -1) {
+ char dbuf[MAXPATHLEN];
+
+ /*
+ * This is a kludge especially for Joerg :)
+ * If the home directory would be created in the root partition, then
+ * we really create it under /usr which is likely to have more space.
+ * But we create a symlink from cnf->home -> "/usr" -> cnf->home
+ */
+ if (strchr(cnf->home+1, '/') == NULL) {
+ strcpy(dbuf, "/usr");
+ strncat(dbuf, cnf->home, MAXPATHLEN-5);
+ if (mkdir(dbuf, cnf->homemode) != -1 || errno == EEXIST) {
+ chown(dbuf, 0, 0);
+ /*
+ * Skip first "/" and create symlink:
+ * /home -> usr/home
+ */
+ symlink(dbuf+1, cnf->home);
+ }
+ /* If this falls, fall back to old method */
+ }
+ strlcpy(dbuf, cnf->home, sizeof(dbuf));
+ p = dbuf;
+ if (stat(dbuf, &st) == -1) {
+ while ((p = strchr(++p, '/')) != NULL) {
+ *p = '\0';
+ if (stat(dbuf, &st) == -1) {
+ if (mkdir(dbuf, cnf->homemode) == -1)
+ goto direrr;
+ chown(dbuf, 0, 0);
+ } else if (!S_ISDIR(st.st_mode))
+ errx(EX_OSFILE, "'%s' (root home parent) is not a directory", dbuf);
+ *p = '/';
+ }
+ }
+ if (stat(dbuf, &st) == -1) {
+ if (mkdir(dbuf, cnf->homemode) == -1) {
+ direrr: err(EX_OSFILE, "mkdir '%s'", dbuf);
+ }
+ chown(dbuf, 0, 0);
+ }
+ } else if (!S_ISDIR(st.st_mode))
+ errx(EX_OSFILE, "root home `%s' is not a directory", cnf->home);
+ }
+
if ((arg = getarg(args, 'e')) != NULL)
cnf->expire_days = atoi(arg->val);
+ if ((arg = getarg(args, 'y')) != NULL)
+ cnf->nispasswd = arg->val;
+
if ((arg = getarg(args, 'p')) != NULL && arg->val)
cnf->password_days = atoi(arg->val);
if ((arg = getarg(args, 'g')) != NULL) {
- p = arg->val;
- if ((grp = getgrnam(p)) == NULL) {
- if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL)
- cmderr(EX_NOUSER, "group `%s' does not exist\n", p);
+ if (!*(p = arg->val)) /* Handle empty group list specially */
+ cnf->default_group = "";
+ else {
+ 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);
+ }
+ cnf->default_group = newstr(grp->gr_name);
}
- cnf->default_group = newstr(grp->gr_name);
}
if ((arg = getarg(args, 'L')) != NULL)
- cnf->default_class = pw_checkname(arg->val, 0);
+ cnf->default_class = pw_checkname((u_char *)arg->val, 0);
if ((arg = getarg(args, 'G')) != NULL && arg->val) {
- int i = 0;
+ int i = 0;
- for (p = strtok(arg->val, ", \t"); i < _UC_MAXGROUPS && p != NULL; p = strtok(NULL, ", \t")) {
- if ((grp = getgrnam(p)) == NULL) {
- if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL)
- cmderr(EX_NOUSER, "group `%s' does not exist\n", p);
+ 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);
}
- cnf->groups[i++] = newstr(grp->gr_name);
+ if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1)
+ cnf->groups[i++] = newstr(grp->gr_name);
}
- while (i < _UC_MAXGROUPS)
+ while (i < cnf->numgroups)
cnf->groups[i++] = NULL;
}
+
if ((arg = getarg(args, 'k')) != NULL) {
- if (stat(cnf->dotdir = arg->val, &st) == -1 || S_ISDIR(st.st_mode))
- cmderr(EX_OSFILE, "skeleton `%s' is not a directory or does not exist\n", cnf->dotdir);
+ if (stat(cnf->dotdir = arg->val, &st) == -1 || !S_ISDIR(st.st_mode))
+ errx(EX_OSFILE, "skeleton `%s' is not a directory or does not exist", cnf->dotdir);
}
+
if ((arg = getarg(args, 's')) != NULL)
cnf->shell_default = arg->val;
+ 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)
- cmderr(EX_DATAERR, "can't combine `-D' with `-n name'\n");
+ 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->min_uid = 1000;
if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid)
cnf->max_gid = 32000;
}
- if ((arg = getarg(args, 'w')) != NULL)
- cnf->default_password = boolean_val(arg->val, cnf->default_password);
arg = getarg(args, 'C');
if (write_userconfig(arg ? arg->val : NULL))
return EXIT_SUCCESS;
- perror("config update");
+ warn("config update");
return EX_IOERR;
}
+
if (mode == M_PRINT && getarg(args, 'a')) {
int pretty = getarg(args, 'P') != NULL;
+ int v7 = getarg(args, '7') != NULL;
- setpwent();
- while ((pwd = getpwent()) != NULL)
- print_user(pwd, pretty);
- endpwent();
+ SETPWENT();
+ while ((pwd = GETPWENT()) != NULL)
+ print_user(pwd, pretty, v7);
+ ENDPWENT();
return EXIT_SUCCESS;
}
+
if ((a_name = getarg(args, 'n')) != NULL)
- pwd = getpwnam(pw_checkname(a_name->val, 0));
+ pwd = GETPWNAM(pw_checkname((u_char *)a_name->val, 0));
a_uid = getarg(args, 'u');
if (a_uid == NULL) {
if (a_name == NULL)
- cmderr(EX_DATAERR, "user name or id required\n");
+ errx(EX_DATAERR, "user name or id required");
/*
* Determine whether 'n' switch is name or uid - we don't
* really don't really care which we have, but we need to
* know.
*/
- if (mode != M_ADD && pwd == NULL && isdigit(*a_name->val) && atoi(a_name->val) > 0) { /* Assume uid */
+ if (mode != M_ADD && pwd == NULL
+ && strspn(a_name->val, "0123456789") == strlen(a_name->val)
+ && atoi(a_name->val) > 0) { /* Assume uid */
(a_uid = a_name)->ch = 'u';
a_name = NULL;
}
}
+
/*
* Update, delete & print require that the user exists
*/
- if (mode == M_UPDATE || mode == M_DELETE || mode == M_PRINT) {
+ if (mode == M_UPDATE || mode == M_DELETE ||
+ mode == M_PRINT || mode == M_LOCK || mode == M_UNLOCK) {
+
if (a_name == NULL && pwd == NULL) /* Try harder */
- pwd = getpwuid(atoi(a_uid->val));
+ pwd = GETPWUID(atoi(a_uid->val));
if (pwd == NULL) {
if (mode == M_PRINT && getarg(args, 'F')) {
fakeuser.pw_name = a_name ? a_name->val : "nouser";
fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1;
- return print_user(&fakeuser, getarg(args, 'P') != NULL);
+ return print_user(&fakeuser,
+ getarg(args, 'P') != NULL,
+ getarg(args, '7') != NULL);
}
if (a_name == NULL)
- cmderr(EX_NOUSER, "no such uid `%s'\n", a_uid->val);
- cmderr(EX_NOUSER, "no such user `%s'\n", a_name->val);
+ errx(EX_NOUSER, "no such uid `%s'", a_uid->val);
+ errx(EX_NOUSER, "no such user `%s'", a_name->val);
}
+
if (a_name == NULL) /* May be needed later */
a_name = addarg(args, 'n', newstr(pwd->pw_name));
/*
- * Handle deletions now
+ * 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_DELETE) {
+
+ 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);
+ passtmp = malloc(strlen(pwd->pw_passwd) + sizeof(locked_str));
+ if (passtmp == NULL) /* disaster */
+ errx(EX_UNAVAILABLE, "out of memory");
+ strcpy(passtmp, locked_str);
+ strcat(passtmp, pwd->pw_passwd);
+ 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) {
+ /*
+ * Handle deletions now
+ */
char file[MAXPATHLEN];
char home[MAXPATHLEN];
uid_t uid = pwd->pw_uid;
if (strcmp(pwd->pw_name, "root") == 0)
- cmderr(EX_DATAERR, "cannot remove user 'root'\n");
-
- /*
- * Remove crontabs
- */
- sprintf(file, "/var/cron/tabs/%s", pwd->pw_name);
- if (access(file, F_OK) == 0) {
- sprintf(file, "crontab -u %s -r", pwd->pw_name);
- system(file);
+ errx(EX_DATAERR, "cannot remove user 'root'");
+
+ if (!PWALTDIR()) {
+ /*
+ * Remove opie record from /etc/opiekeys
+ */
+
+ rmopie(pwd->pw_name);
+
+ /*
+ * Remove crontabs
+ */
+ sprintf(file, "/var/cron/tabs/%s", pwd->pw_name);
+ if (access(file, F_OK) == 0) {
+ sprintf(file, "crontab -u %s -r", pwd->pw_name);
+ system(file);
+ }
}
/*
* Save these for later, since contents of pwd may be
* invalidated by deletion
*/
sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
- strncpy(home, pwd->pw_dir, sizeof home);
- home[sizeof home - 1] = '\0';
+ strlcpy(home, pwd->pw_dir, sizeof(home));
- if (!delpwent(pwd))
- cmderr(EX_IOERR, "Error updating passwd file: %s\n", strerror(errno));
- editgroups(a_name->val, NULL);
+ rc = delpwent(pwd);
+ if (rc == -1)
+ err(EX_IOERR, "user '%s' does not exist", pwd->pw_name);
+ else if (rc != 0) {
+ warn("passwd update");
+ return EX_IOERR;
+ }
- pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid);
+ if (cnf->nispasswd && *cnf->nispasswd=='/') {
+ rc = delnispwent(cnf->nispasswd, a_name->val);
+ if (rc == -1)
+ warnx("WARNING: user '%s' does not exist in NIS passwd", pwd->pw_name);
+ else if (rc != 0)
+ warn("WARNING: NIS passwd update");
+ /* non-fatal */
+ }
- /*
- * Remove mail file
- */
- remove(file);
+ editgroups(a_name->val, NULL);
- /*
- * Remove at jobs
- */
- if (getpwuid(uid) == NULL)
- rmat(uid);
+ pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid);
- /*
- * Remove home directory and contents
- */
- if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) {
- if (stat(home, &st) != -1) {
- rm_r(home, uid);
- pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved",
- a_name->val, (long) uid, home,
- stat(home, &st) == -1 ? "" : "not completely ");
+ if (!PWALTDIR()) {
+ /*
+ * Remove mail file
+ */
+ remove(file);
+
+ /*
+ * Remove at jobs
+ */
+ if (getpwuid(uid) == NULL)
+ rmat(uid);
+
+ /*
+ * Remove home directory and contents
+ */
+ if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) {
+ if (stat(home, &st) != -1) {
+ rm_r(home, uid);
+ pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved",
+ a_name->val, (long) uid, home,
+ stat(home, &st) == -1 ? "" : "not completely ");
+ }
}
}
return EXIT_SUCCESS;
} else if (mode == M_PRINT)
- return print_user(pwd, getarg(args, 'P') != NULL);
+ return print_user(pwd,
+ getarg(args, 'P') != NULL,
+ getarg(args, '7') != NULL);
/*
* The rest is edit code
*/
if ((arg = getarg(args, 'l')) != NULL) {
if (strcmp(pwd->pw_name, "root") == 0)
- cmderr(EX_DATAERR, "can't rename `root' account\n");
- pwd->pw_name = pw_checkname(arg->val, 0);
+ errx(EX_DATAERR, "can't rename `root' account");
+ pwd->pw_name = pw_checkname((u_char *)arg->val, 0);
+ edited = 1;
}
- if ((arg = getarg(args, 'u')) != NULL && isdigit(*arg->val)) {
+
+ if ((arg = getarg(args, 'u')) != NULL && isdigit((unsigned char)*arg->val)) {
pwd->pw_uid = (uid_t) atol(arg->val);
+ edited = 1;
if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0)
- cmderr(EX_DATAERR, "can't change uid of `root' account\n");
+ errx(EX_DATAERR, "can't change uid of `root' account");
if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
- fprintf(stderr, "WARNING: account `%s' will have a uid of 0 (superuser access!)\n", pwd->pw_name);
+ warnx("WARNING: account `%s' will have a uid of 0 (superuser access!)", pwd->pw_name);
+ }
+
+ if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) { /* Already checked this */
+ gid_t newgid = (gid_t) GETGRNAM(cnf->default_group)->gr_gid;
+ if (newgid != pwd->pw_gid) {
+ edited = 1;
+ pwd->pw_gid = newgid;
+ }
}
- if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) /* Already checked this */
- pwd->pw_gid = (gid_t) getgrnam(cnf->default_group)->gr_gid;
if ((arg = getarg(args, 'p')) != NULL) {
- if (*arg->val == '\0' || strcmp(arg->val, "0") == 0)
- pwd->pw_change = 0;
+ if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) {
+ if (pwd->pw_change != 0) {
+ pwd->pw_change = 0;
+ edited = 1;
+ }
+ }
else {
time_t now = time(NULL);
time_t expire = parse_date(now, arg->val);
if (now == expire)
- cmderr(EX_DATAERR, "Invalid password change date `%s'\n", arg->val);
- pwd->pw_change = expire;
+ errx(EX_DATAERR, "invalid password change date `%s'", arg->val);
+ if (pwd->pw_change != expire) {
+ pwd->pw_change = expire;
+ edited = 1;
+ }
}
}
+
if ((arg = getarg(args, 'e')) != NULL) {
- if (*arg->val == '\0' || strcmp(arg->val, "0") == 0)
- pwd->pw_expire = 0;
+ if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) {
+ if (pwd->pw_expire != 0) {
+ pwd->pw_expire = 0;
+ edited = 1;
+ }
+ }
else {
time_t now = time(NULL);
time_t expire = parse_date(now, arg->val);
if (now == expire)
- cmderr(EX_DATAERR, "Invalid account expiry date `%s'\n", arg->val);
- pwd->pw_expire = expire;
+ errx(EX_DATAERR, "invalid account expiry date `%s'", arg->val);
+ if (pwd->pw_expire != expire) {
+ pwd->pw_expire = expire;
+ edited = 1;
+ }
+ }
+ }
+
+ if ((arg = getarg(args, 's')) != NULL) {
+ char *shell = shell_path(cnf->shelldir, cnf->shells, arg->val);
+ if (shell == NULL)
+ shell = "";
+ if (strcmp(shell, pwd->pw_shell) != 0) {
+ pwd->pw_shell = shell;
+ edited = 1;
+ }
+ }
+
+ if (getarg(args, 'L')) {
+ if (cnf->default_class == NULL)
+ cnf->default_class = "";
+ if (strcmp(pwd->pw_class, cnf->default_class) != 0) {
+ pwd->pw_class = cnf->default_class;
+ edited = 1;
}
}
- if ((arg = getarg(args, 's')) != NULL)
- pwd->pw_shell = shell_path(cnf->shelldir, cnf->shells, arg->val);
- if (getarg(args, 'L'))
- pwd->pw_class = cnf->default_class;
+ if ((arg = getarg(args, 'd')) != NULL) {
+ if (strcmp(pwd->pw_dir, arg->val))
+ edited = 1;
+ if (stat(pwd->pw_dir = arg->val, &st) == -1) {
+ if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0)
+ warnx("WARNING: home `%s' does not exist", pwd->pw_dir);
+ } else if (!S_ISDIR(st.st_mode))
+ warnx("WARNING: home `%s' is not a directory", pwd->pw_dir);
+ }
- if ((arg = getarg(args, 'w')) != NULL && getarg(args, 'h') == NULL)
+ if ((arg = getarg(args, 'w')) != NULL &&
+ getarg(args, 'h') == NULL && getarg(args, 'H') == NULL) {
+ login_cap_t *lc;
+
+ lc = login_getpwclass(pwd);
+ if (lc == NULL ||
+ login_setcryptfmt(lc, "md5", NULL) == NULL)
+ warn("setting crypt(3) format");
+ login_close(lc);
pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
+ edited = 1;
+ }
} else {
+ login_cap_t *lc;
+
+ /*
+ * Add code
+ */
+
if (a_name == NULL) /* Required */
- cmderr(EX_DATAERR, "login name required\n");
- else if ((pwd = getpwnam(a_name->val)) != NULL) /* Exists */
- cmderr(EX_DATAERR, "login name `%s' already exists\n", a_name->val);
+ errx(EX_DATAERR, "login name required");
+ else if ((pwd = GETPWNAM(a_name->val)) != NULL) /* Exists */
+ errx(EX_DATAERR, "login name `%s' already exists", a_name->val);
/*
* Now, set up defaults for a new user
pwd = &fakeuser;
pwd->pw_name = a_name->val;
pwd->pw_class = cnf->default_class ? cnf->default_class : "";
- pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
pwd->pw_uid = pw_uidpolicy(cnf, args);
pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid);
pwd->pw_change = pw_pwdpolicy(cnf, args);
pwd->pw_expire = pw_exppolicy(cnf, args);
pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name);
pwd->pw_shell = pw_shellpolicy(cnf, args, NULL);
+ lc = login_getpwclass(pwd);
+ if (lc == NULL || login_setcryptfmt(lc, "md5", NULL) == NULL)
+ warn("setting crypt(3) format");
+ login_close(lc);
+ pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
+ edited = 1;
if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
- fprintf(stderr, "WARNING: new account `%s' has a uid of 0 (superuser access!)\n", pwd->pw_name);
+ warnx("WARNING: new account `%s' has a uid of 0 (superuser access!)", pwd->pw_name);
}
/*
* Shared add/edit code
*/
- if ((arg = getarg(args, 'c')) != NULL)
- pwd->pw_gecos = pw_checkname(arg->val, 1);
+ if ((arg = getarg(args, 'c')) != NULL) {
+ char *gecos = pw_checkname((u_char *)arg->val, 1);
+ if (strcmp(pwd->pw_gecos, gecos) != 0) {
+ pwd->pw_gecos = gecos;
+ edited = 1;
+ }
+ }
- if ((arg = getarg(args, 'h')) != NULL) {
- if (strcmp(arg->val, "-") == 0)
- pwd->pw_passwd = "*"; /* No access */
- else {
+ 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)
/* Disable echo */
n.c_lflag &= ~(ECHO);
tcsetattr(fd, TCSANOW, &n);
- printf("%sassword for user %s:", (mode == M_UPDATE) ? "New p" : "P", pwd->pw_name);
+ printf("%s%spassword for user %s:",
+ (mode == M_UPDATE) ? "new " : "",
+ precrypt ? "encrypted " : "",
+ pwd->pw_name);
fflush(stdout);
}
}
fflush(stdout);
}
if (b < 0) {
- perror("-h file descriptor");
+ warn("-%c file descriptor", precrypt ? 'H' :
+ 'h');
return EX_IOERR;
}
line[b] = '\0';
- if ((p = strpbrk(line, " \t\r\n")) != NULL)
+ if ((p = strpbrk(line, "\r\n")) != NULL)
*p = '\0';
if (!*line)
- cmderr(EX_DATAERR, "empty password read on file descriptor %d\n", fd);
- pwd->pw_passwd = pw_pwcrypt(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, "md5", NULL) == NULL)
+ warn("setting crypt(3) format");
+ login_close(lc);
+ pwd->pw_passwd = pw_pwcrypt(line);
+ }
+ edited = 1;
}
}
* Special case: -N only displays & exits
*/
if (getarg(args, 'N') != NULL)
- return print_user(pwd, getarg(args, 'P') != NULL);
+ return print_user(pwd,
+ getarg(args, 'P') != NULL,
+ getarg(args, '7') != NULL);
- if ((mode == M_ADD && !addpwent(pwd)) ||
- (mode == M_UPDATE && !chgpwent(a_name->val, pwd))) {
- perror("password update");
- return EX_IOERR;
+ if (mode == M_ADD) {
+ edited = 1; /* Always */
+ rc = addpwent(pwd);
+ if (rc == -1) {
+ warnx("user '%s' already exists", pwd->pw_name);
+ return EX_IOERR;
+ } else if (rc != 0) {
+ warn("passwd file update");
+ return EX_IOERR;
+ }
+ if (cnf->nispasswd && *cnf->nispasswd=='/') {
+ rc = addnispwent(cnf->nispasswd, pwd);
+ if (rc == -1)
+ warnx("User '%s' already exists in NIS passwd", pwd->pw_name);
+ else
+ 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(a_name->val, pwd);
+ if (rc == -1) {
+ warnx("user '%s' does not exist (NIS?)", pwd->pw_name);
+ return EX_IOERR;
+ } else if (rc != 0) {
+ warn("passwd file update");
+ return EX_IOERR;
+ }
+ if ( cnf->nispasswd && *cnf->nispasswd=='/') {
+ rc = chgnispwent(cnf->nispasswd, a_name->val, 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 */
+ }
+ }
}
+
/*
* Ok, user is created or changed - now edit group file
*/
if (mode == M_ADD || getarg(args, 'G') != NULL)
editgroups(pwd->pw_name, cnf->groups);
- /* pwd may have been invalidated */
- if ((pwd = getpwnam(a_name->val)) == NULL)
- cmderr(EX_NOUSER, "user '%s' disappeared during update\n", a_name->val);
+ /* go get a current version of pwd */
+ pwd = GETPWNAM(a_name->val);
+ if (pwd == NULL) {
+ /* This will fail when we rename, so special case that */
+ if (mode == M_UPDATE && (arg = getarg(args, 'l')) != NULL) {
+ a_name->val = arg->val; /* update new name */
+ pwd = GETPWNAM(a_name->val); /* refetch renamed rec */
+ }
+ }
+ if (pwd == NULL) /* can't go on without this */
+ errx(EX_NOUSER, "user '%s' disappeared during update", a_name->val);
- grp = getgrgid(pwd->pw_gid);
- pw_log(cnf, mode, W_USER, "%s(%ld):%s(%d):%s:%s:%s",
+ grp = GETGRGID(pwd->pw_gid);
+ pw_log(cnf, mode, W_USER, "%s(%ld):%s(%ld):%s:%s:%s",
pwd->pw_name, (long) pwd->pw_uid,
grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1),
pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);
* doesn't hurt anything to create the empty mailfile
*/
if (mode == M_ADD) {
- FILE *fp;
-
- sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
- close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents &
- * mtime */
- chown(line, pwd->pw_uid, pwd->pw_gid);
-
- /*
- * Send mail to the new user as well, if we are asked to
- */
- if (cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) {
- FILE *pfp = popen(_PATH_SENDMAIL " -t", "w");
-
- if (pfp == NULL)
- perror("sendmail");
- else {
- fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name);
- while (fgets(line, sizeof(line), fp) != NULL) {
- /* Do substitutions? */
- fputs(line, pfp);
- }
- pclose(pfp);
- pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent",
- pwd->pw_name, (long) pwd->pw_uid);
- }
- fclose(fp);
+ if (!PWALTDIR()) {
+ sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
+ close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents &
+ * mtime */
+ chown(line, pwd->pw_uid, pwd->pw_gid);
}
}
+
/*
- * Finally, let's create and populate the user's home directory. Note
+ * Let's create and populate the user's home directory. Note
* that this also `works' for editing users if -m is used, but
* existing files will *not* be overwritten.
*/
- if (getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) {
- copymkdir(pwd->pw_dir, cnf->dotdir, 0755, pwd->pw_uid, pwd->pw_gid);
+ if (!PWALTDIR() && getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) {
+ copymkdir(pwd->pw_dir, cnf->dotdir, cnf->homemode, pwd->pw_uid, pwd->pw_gid);
pw_log(cnf, mode, W_USER, "%s(%ld) home %s made",
pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir);
}
+
+
+ /*
+ * Finally, send mail to the new user as well, if we are asked to
+ */
+ if (mode == M_ADD && !PWALTDIR() && cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) {
+ FILE *pfp = popen(_PATH_SENDMAIL " -t", "w");
+
+ if (pfp == NULL)
+ warn("sendmail");
+ else {
+ fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name);
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ /* Do substitutions? */
+ fputs(line, pfp);
+ }
+ pclose(pfp);
+ pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent",
+ pwd->pw_name, (long) pwd->pw_uid);
+ }
+ fclose(fp);
+ }
+
return EXIT_SUCCESS;
}
if (a_uid != NULL) {
uid = (uid_t) atol(a_uid->val);
- if ((pwd = getpwuid(uid)) != NULL && getarg(args, 'o') == NULL)
- cmderr(EX_DATAERR, "uid `%ld' has already been allocated\n", (long) pwd->pw_uid);
+ if ((pwd = GETPWUID(uid)) != NULL && getarg(args, 'o') == NULL)
+ errx(EX_DATAERR, "uid `%ld' has already been allocated", (long) pwd->pw_uid);
} else {
struct bitmap bm;
/*
* Now, let's fill the bitmap from the password file
*/
- setpwent();
- while ((pwd = getpwent()) != NULL)
- if (pwd->pw_uid >= (int) cnf->min_uid && pwd->pw_uid <= (int) cnf->max_uid)
+ SETPWENT();
+ while ((pwd = GETPWENT()) != NULL)
+ if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid)
bm_setbit(&bm, pwd->pw_uid - cnf->min_uid);
- endpwent();
+ ENDPWENT();
/*
* Then apply the policy, with fallback to reuse if necessary
* Another sanity check
*/
if (uid < cnf->min_uid || uid > cnf->max_uid)
- cmderr(EX_SOFTWARE, "unable to allocate a new uid - range fully used\n");
+ errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used");
bm_dealloc(&bm);
}
return uid;
/*
* Check the given gid, if any
*/
- setgrent();
+ SETGRENT();
if (a_gid != NULL) {
- if ((grp = getgrnam(a_gid->val)) == NULL) {
+ if ((grp = GETGRNAM(a_gid->val)) == NULL) {
gid = (gid_t) atol(a_gid->val);
- if ((gid == 0 && !isdigit(*a_gid->val)) || (grp = getgrgid(gid)) == NULL)
- cmderr(EX_NOUSER, "group `%s' is not defined\n", a_gid->val);
+ if ((gid == 0 && !isdigit((unsigned char)*a_gid->val)) || (grp = GETGRGID(gid)) == NULL)
+ errx(EX_NOUSER, "group `%s' is not defined", a_gid->val);
}
gid = grp->gr_gid;
- } else if ((grp = getgrnam(nam)) != NULL && grp->gr_mem[0] == NULL) {
+ } else if ((grp = GETGRNAM(nam)) != NULL && grp->gr_mem[0] == NULL) {
gid = grp->gr_gid; /* Already created? Use it anyway... */
} else {
struct cargs grpargs;
* 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) {
+ if (GETGRGID(prefer) == NULL) {
sprintf(tmp, "%lu", (unsigned long) prefer);
addarg(&grpargs, 'g', tmp);
}
else
{
pw_group(cnf, M_ADD, &grpargs);
- if ((grp = getgrnam(nam)) != NULL)
+ if ((grp = GETGRNAM(nam)) != NULL)
gid = grp->gr_gid;
}
- a_gid = grpargs.lh_first;
+ a_gid = LIST_FIRST(&grpargs);
while (a_gid != NULL) {
- struct carg *t = a_gid->list.le_next;
+ struct carg *t = LIST_NEXT(a_gid, list);
LIST_REMOVE(a_gid, list);
a_gid = t;
}
}
- endgrent();
+ ENDGRENT();
return gid;
}
{
time_t result = 0;
time_t now = time(NULL);
- struct carg *arg = getarg(args, 'e');
+ struct carg *arg = getarg(args, 'p');
if (arg != NULL) {
if ((result = parse_date(now, arg->val)) == now)
- cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val);
+ errx(EX_DATAERR, "invalid date/time `%s'", arg->val);
} else if (cnf->password_days > 0)
result = now + ((long) cnf->password_days * 86400L);
return result;
if (arg != NULL) {
if ((result = parse_date(now, arg->val)) == now)
- cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val);
+ errx(EX_DATAERR, "invalid date/time `%s'", arg->val);
} else if (cnf->expire_days > 0)
result = now + ((long) cnf->expire_days * 86400L);
return result;
static char home[128];
if (cnf->home == NULL || *cnf->home == '\0')
- cmderr(EX_CONFIG, "no base home directory set\n");
+ errx(EX_CONFIG, "no base home directory set");
sprintf(home, "%s/%s", cnf->home, user);
return home;
}
/*
* We need to search paths
*/
- strncpy(paths, path, sizeof paths);
- paths[sizeof paths - 1] = '\0';
+ strlcpy(paths, path, sizeof(paths));
for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) {
int i;
static char shellpath[256];
}
}
if (sh == NULL)
- cmderr(EX_OSFILE, "can't find shell `%s' in shell paths\n", sh);
- cmderr(EX_CONFIG, "no default shell available or defined\n");
+ errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh);
+ errx(EX_CONFIG, "no default shell available or defined");
return NULL;
}
}
return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default);
}
-static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.";
+#define SALTSIZE 32
+
+static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./";
char *
pw_pwcrypt(char *password)
{
int i;
- char salt[12];
+ char salt[SALTSIZE + 1];
static char buf[256];
/*
* Calculate a salt value
*/
- srandom((unsigned) (time(NULL) ^ getpid()));
- for (i = 0; i < 8; i++)
- salt[i] = chars[random() % 63];
- salt[i] = '\0';
+ for (i = 0; i < SALTSIZE; i++)
+ salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)];
+ salt[SALTSIZE] = '\0';
return strcpy(buf, crypt(password, salt));
}
-#if defined(__FreeBSD__)
-
-#if defined(USE_MD5RAND)
-u_char *
-pw_getrand(u_char *buf, int len) /* cryptographically secure rng */
-{
- int i;
- for (i=0;i<len;i+=16) {
- u_char ubuf[16];
-
- MD5_CTX md5_ctx;
- struct timeval tv, tvo;
- struct rusage ru;
- int n=0;
- int t;
-
- MD5Init (&md5_ctx);
- t=getpid();
- MD5Update (&md5_ctx, (u_char*)&t, sizeof t);
- t=getppid();
- MD5Update (&md5_ctx, (u_char*)&t, sizeof t);
- gettimeofday (&tvo, NULL);
- do {
- getrusage (RUSAGE_SELF, &ru);
- MD5Update (&md5_ctx, (u_char*)&ru, sizeof ru);
- gettimeofday (&tv, NULL);
- MD5Update (&md5_ctx, (u_char*)&tv, sizeof tv);
- } while (n++<20 || tv.tv_usec-tvo.tv_usec<100*1000);
- MD5Final (ubuf, &md5_ctx);
- memcpy(buf+i, ubuf, MIN(16, len-n));
- }
- return buf;
-}
-
-#else /* Use random device (preferred) */
-
-static u_char *
-pw_getrand(u_char *buf, int len)
-{
- int fd;
- fd = open("/dev/urandom", O_RDONLY);
- if (fd==-1)
- cmderr(EX_OSFILE, "can't open /dev/urandom: %s\n", strerror(errno));
- else if (read(fd, buf, len)!=len)
- cmderr(EX_IOERR, "read error on /dev/urandom\n");
- close(fd);
- return buf;
-}
-
-#endif
-
-#else /* Portable version */
-
-static u_char *
-pw_getrand(u_char *buf, int len)
-{
- int i;
-
- for (i = 0; i < len; i++) {
- unsigned val = random();
- /* Use all bits in the random value */
- buf[i]=(u_char)((val >> 24) ^ (val >> 16) ^ (val >> 8) ^ val);
- }
- return buf;
-}
-
-#endif
static char *
pw_password(struct userconf * cnf, struct cargs * args, char const * user)
{
int i, l;
char pwbuf[32];
- u_char rndbuf[sizeof pwbuf];
switch (cnf->default_password) {
case -1: /* Random password */
- srandom((unsigned) (time(NULL) ^ getpid()));
- l = (random() % 8 + 8); /* 8 - 16 chars */
- pw_getrand(rndbuf, l);
+ l = (arc4random() % 8 + 8); /* 8 - 16 chars */
for (i = 0; i < l; i++)
- pwbuf[i] = chars[rndbuf[i] % sizeof(chars)];
+ pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)];
pwbuf[i] = '\0';
/*
* We give this information back to the user
*/
- if (getarg(args, 'h') == NULL && getarg(args, 'N') == NULL) {
- if (isatty(0))
- printf("Password is: ");
+ if (getarg(args, 'h') == NULL && getarg(args, 'H') == NULL &&
+ getarg(args, 'N') == NULL) {
+ if (isatty(STDOUT_FILENO))
+ printf("Password for '%s' is: ", user);
printf("%s\n", pwbuf);
fflush(stdout);
}
return "*";
case 1: /* user's name */
- strncpy(pwbuf, user, sizeof pwbuf);
- pwbuf[sizeof pwbuf - 1] = '\0';
+ strlcpy(pwbuf, user, sizeof(pwbuf));
break;
}
return pw_pwcrypt(pwbuf);
static int
-print_user(struct passwd * pwd, int pretty)
+print_user(struct passwd * pwd, int pretty, int v7)
{
if (!pretty) {
char buf[_UC_MAXLINE];
- fmtpwent(buf, pwd);
+ fmtpwentry(buf, pwd, v7 ? PWF_PASSWD : PWF_STANDARD);
fputs(buf, stdout);
} else {
int j;
char *p;
- struct group *grp = getgrgid(pwd->pw_gid);
+ struct group *grp = GETGRGID(pwd->pw_gid);
char uname[60] = "User &", office[60] = "[None]",
wphone[60] = "[None]", hphone[60] = "[None]";
char acexpire[32] = "[None]", pwexpire[32] = "[None]";
struct tm * tptr;
if ((p = strtok(pwd->pw_gecos, ",")) != NULL) {
- strncpy(uname, p, sizeof uname);
- uname[sizeof uname - 1] = '\0';
+ strlcpy(uname, p, sizeof(uname));
if ((p = strtok(NULL, ",")) != NULL) {
- strncpy(office, p, sizeof office);
- office[sizeof office - 1] = '\0';
+ strlcpy(office, p, sizeof(office));
if ((p = strtok(NULL, ",")) != NULL) {
- strncpy(wphone, p, sizeof wphone);
- wphone[sizeof wphone - 1] = '\0';
+ strlcpy(wphone, p, sizeof(wphone));
if ((p = strtok(NULL, "")) != NULL) {
- strncpy(hphone, p, sizeof hphone);
- hphone[sizeof hphone - 1] = '\0';
+ strlcpy(hphone, p,
+ sizeof(hphone));
}
}
}
memmove(p + l, p + 1, m);
memmove(p, pwd->pw_name, l);
- *p = (char) toupper(*p);
+ *p = (char) toupper((unsigned char)*p);
}
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)9 && (tptr = localtime(&pwd->pw_change)) != NULL)
- strftime(pwexpire, sizeof pwexpire, "%c", tptr);
- printf("Login Name : %-10s #%-22ld Group : %-10s #%ld\n"
- " Full Name : %s\n"
- " Home : %-32.32s Class : %s\n"
- " Shell : %-32.32s Office : %s\n"
- "Work Phone : %-32.32s Home Phone : %s\n"
- "Acc Expire : %-32.32s Pwd Expire : %s\n",
+ strftime(acexpire, sizeof acexpire, "%c", tptr);
+ if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL)
+ strftime(pwexpire, sizeof pwexpire, "%c", tptr);
+ printf("Login Name: %-15s #%-12ld Group: %-15s #%ld\n"
+ " Full Name: %s\n"
+ " Home: %-26.26s Class: %s\n"
+ " Shell: %-26.26s Office: %s\n"
+ "Work Phone: %-26.26s Home Phone: %s\n"
+ "Acc Expire: %-26.26s Pwd Expire: %s\n",
pwd->pw_name, (long) pwd->pw_uid,
grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid,
uname, pwd->pw_dir, pwd->pw_class,
pwd->pw_shell, office, wphone, hphone,
acexpire, pwexpire);
- setgrent();
+ SETGRENT();
j = 0;
- while ((grp=getgrent()) != NULL)
+ while ((grp=GETGRENT()) != NULL)
{
int i = 0;
- while (i < _UC_MAXGROUPS && grp->gr_mem[i] != NULL)
+ while (grp->gr_mem[i] != NULL)
{
if (strcmp(grp->gr_mem[i], pwd->pw_name)==0)
{
- printf(j++ == 0 ? " Groups : %s" : ",%s", grp->gr_name);
+ printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name);
break;
}
++i;
}
}
- endgrent();
- printf("%s\n", j ? "\n" : "");
+ ENDGRENT();
+ printf("%s", j ? "\n" : "");
}
return EXIT_SUCCESS;
}
-static char *
-pw_checkname(char *name, int gecos)
+char *
+pw_checkname(u_char *name, int gecos)
{
- int l = 0;
- char const *notch = gecos ? ":" : " ,\t:+-&#%$^()!@~*?<>=|\\/\"";
-
- while (name[l]) {
- if (strchr(notch, name[l]) != NULL || name[l] < ' ' || name[l] > 126)
- cmderr(EX_DATAERR, (name[l]<' ' || (unsigned char)name[l] > 126)
- ? "invalid character `%c' in field\n"
- : "invalid character 0x$02x in field\n",
- name[l]);
- ++l;
+ char showch[8];
+ u_char const *badchars, *ch, *showtype;
+ int reject;
+
+ ch = name;
+ reject = 0;
+ if (gecos) {
+ /* See if the name is valid as a gecos (comment) field. */
+ badchars = ":!@";
+ showtype = "gecos field";
+ } else {
+ /* See if the name is valid as a userid or group. */
+ badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\"";
+ showtype = "userid/group name";
+ /* Userids and groups can not have a leading '-'. */
+ if (*ch == '-')
+ reject = 1;
+ }
+ if (!reject) {
+ while (*ch) {
+ if (strchr(badchars, *ch) != NULL || *ch < ' ' ||
+ *ch == 127) {
+ reject = 1;
+ break;
+ }
+ /* 8-bit characters are only allowed in GECOS fields */
+ if (!gecos && (*ch & 0x80)) {
+ reject = 1;
+ break;
+ }
+ ch++;
+ }
}
- if (!gecos && l > MAXLOGNAME)
- cmderr(EX_DATAERR, "name too long `%s'\n", name);
- return name;
+ /*
+ * A `$' is allowed as the final character for userids and groups,
+ * mainly for the benefit of samba.
+ */
+ if (reject && !gecos) {
+ if (*ch == '$' && *(ch + 1) == '\0') {
+ reject = 0;
+ ch++;
+ }
+ }
+ if (reject) {
+ snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127)
+ ? "`%c'" : "0x%02x", *ch);
+ errx(EX_DATAERR, "invalid character %s at position %d in %s",
+ showch, (ch - name), showtype);
+ }
+ if (!gecos && (ch - name) > LOGNAMESIZE)
+ errx(EX_DATAERR, "name too long `%s' (max is %d)", name,
+ LOGNAMESIZE);
+ return (char *)name;
}
closedir(d);
}
}
+
+static void
+rmopie(char const * name)
+{
+ static const char etcopie[] = "/etc/opiekeys";
+ FILE *fp = fopen(etcopie, "r+");
+
+ if (fp != NULL) {
+ char tmp[1024];
+ off_t atofs = 0;
+ int length = strlen(name);
+
+ while (fgets(tmp, sizeof tmp, fp) != NULL) {
+ if (strncmp(name, tmp, length) == 0 && tmp[length]==' ') {
+ if (fseek(fp, atofs, SEEK_SET) == 0) {
+ fwrite("#", 1, 1, fp); /* Comment username out */
+ }
+ break;
+ }
+ atofs = ftell(fp);
+ }
+ /*
+ * If we got an error of any sort, don't update!
+ */
+ fclose(fp);
+ }
+}
+
git.ckatri.com / pw-darwin.git / blobdiff