/* * Copyright (c) 1991 - 1994, Julianne Frances Haugh * Copyright (c) 1996 - 2000, Marek Michałkiewicz * Copyright (c) 2000 - 2006, Tomasz Kłoczko * Copyright (c) 2007 - 2009, Nicolas François * 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. The name of the copyright holders or contributors may not be used to * endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT * HOLDERS 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. */ #include #ident "$Id$" #include #include #include #include #include #include #include #ifdef ACCT_TOOLS_SETUID #ifdef USE_PAM #include "pam_defs.h" #endif /* USE_PAM */ #endif /* ACCT_TOOLS_SETUID */ #include #include #include #include #include "chkname.h" #include "defines.h" #include "faillog.h" #include "getdef.h" #include "groupio.h" #include "nscd.h" #include "prototypes.h" #include "pwauth.h" #include "pwio.h" #ifdef SHADOWGRP #include "sgroupio.h" #endif #include "shadowio.h" /* * exit status values * for E_GRP_UPDATE and E_NOSPACE (not used yet), other update requests * will be implemented (as documented in the Solaris 2.x man page). */ /*@-exitarg@*/ #define E_SUCCESS 0 /* success */ #define E_PW_UPDATE 1 /* can't update password file */ #define E_USAGE 2 /* invalid command syntax */ #define E_BAD_ARG 3 /* invalid argument to option */ #define E_UID_IN_USE 4 /* UID already in use (and no -o) */ /* #define E_BAD_PWFILE 5 passwd file contains errors */ #define E_NOTFOUND 6 /* specified user/group doesn't exist */ #define E_USER_BUSY 8 /* user to modify is logged in */ #define E_NAME_IN_USE 9 /* username already in use */ #define E_GRP_UPDATE 10 /* can't update group file */ /* #define E_NOSPACE 11 insufficient space to move home dir */ #define E_HOMEDIR 12 /* unable to complete home dir move */ #define VALID(s) (strcspn (s, ":\n") == strlen (s)) /* * Global variables */ char *Prog; static char *user_name; static char *user_newname; static char *user_pass; static uid_t user_id; static uid_t user_newid; static gid_t user_gid; static gid_t user_newgid; static char *user_comment; static char *user_newcomment; static char *user_home; static char *user_newhome; static char *user_shell; #ifdef WITH_SELINUX static const char *user_selinux = ""; #endif static char *user_newshell; static long user_expire; static long user_newexpire; static long user_inactive; static long user_newinactive; static long sys_ngroups; static char **user_groups; /* NULL-terminated list */ static bool aflg = false, /* append to existing secondary group set */ cflg = false, /* new comment (GECOS) field */ dflg = false, /* new home directory */ eflg = false, /* days since 1970-01-01 when account becomes expired */ fflg = false, /* days until account with expired password is locked */ gflg = false, /* new primary group ID */ Gflg = false, /* new secondary group set */ Lflg = false, /* lock the password */ lflg = false, /* new user name */ mflg = false, /* create user's home directory if it doesn't exist */ oflg = false, /* permit non-unique user ID to be specified with -u */ pflg = false, /* new encrypted password */ sflg = false, /* new shell program */ #ifdef WITH_SELINUX Zflg = false, /* new selinux user */ #endif uflg = false, /* specify new user ID */ Uflg = false; /* unlock the password */ static bool is_shadow_pwd; #ifdef SHADOWGRP static bool is_shadow_grp; #endif static bool pw_locked = false; static bool spw_locked = false; static bool gr_locked = false; #ifdef SHADOWGRP static bool sgr_locked = false; #endif /* local function prototypes */ static void date_to_str (char *buf, size_t maxsize, long int date, const char *negativ); static int get_groups (char *); static void usage (int status); static void new_pwent (struct passwd *); #ifdef WITH_SELINUX static void selinux_update_mapping (void); #endif static void new_spent (struct spwd *); static void fail_exit (int); static void update_group (void); #ifdef SHADOWGRP static void update_gshadow (void); #endif static void grp_update (void); static void process_flags (int, char **); static void close_files (void); static void open_files (void); static void usr_update (void); static void move_home (void); static void update_lastlog (void); static void update_faillog (void); #ifndef NO_MOVE_MAILBOX static void move_mailbox (void); #endif static void date_to_str (char *buf, size_t maxsize, long int date, const char *negativ) { struct tm *tp; if ((negativ != NULL) && (date < 0)) { strncpy (buf, negativ, maxsize); } else { time_t t = (time_t) date; tp = gmtime (&t); #ifdef HAVE_STRFTIME strftime (buf, maxsize, "%Y-%m-%d", tp); #else snprintf (buf, maxsize, "%04d-%02d-%02d", tp->tm_year + 1900, tp->tm_mon + 1, tp->tm_mday); #endif /* HAVE_STRFTIME */ } buf[maxsize - 1] = '\0'; } /* * get_groups - convert a list of group names to an array of group IDs * * get_groups() takes a comma-separated list of group names and * converts it to a NULL-terminated array. Any unknown group names are * reported as errors. */ static int get_groups (char *list) { char *cp; const struct group *grp; int errors = 0; int ngroups = 0; /* * Initialize the list to be empty */ user_groups[0] = (char *) 0; if ('\0' == *list) { return 0; } /* * So long as there is some data to be converted, strip off each * name and look it up. A mix of numerical and string values for * group identifiers is permitted. */ do { /* * Strip off a single name from the list */ cp = strchr (list, ','); if (NULL != cp) { *cp = '\0'; cp++; } /* * Names starting with digits are treated as numerical GID * values, otherwise the string is looked up as is. */ grp = getgr_nam_gid (list); /* * There must be a match, either by GID value or by * string name. */ if (NULL == grp) { fprintf (stderr, _("%s: group '%s' does not exist\n"), Prog, list); errors++; } list = cp; /* * If the group doesn't exist, don't dump core. Instead, * try the next one. --marekm */ if (NULL == grp) { continue; } #ifdef USE_NIS /* * Don't add this group if they are an NIS group. Tell the * user to go to the server for this group. */ if (__isgrNIS ()) { fprintf (stderr, _("%s: group '%s' is a NIS group.\n"), Prog, grp->gr_name); continue; } #endif if (ngroups == sys_ngroups) { fprintf (stderr, _("%s: too many groups specified (max %d).\n"), Prog, ngroups); break; } /* * Add the group name to the user's list of groups. */ user_groups[ngroups++] = xstrdup (grp->gr_name); } while (NULL != list); user_groups[ngroups] = (char *) 0; /* * Any errors in finding group names are fatal */ if (0 != errors) { return -1; } return 0; } /* * usage - display usage message and exit */ static void usage (int status) { fprintf (status ? stderr : stdout, _("Usage: usermod [options] LOGIN\n" "\n" "Options:\n" " -c, --comment COMMENT new value of the GECOS field\n" " -d, --home HOME_DIR new home directory for the user account\n" " -e, --expiredate EXPIRE_DATE set account expiration date to EXPIRE_DATE\n" " -f, --inactive INACTIVE set password inactive after expiration\n" " to INACTIVE\n" " -g, --gid GROUP force use GROUP as new primary group\n" " -G, --groups GROUPS new list of supplementary GROUPS\n" " -a, --append append the user to the supplemental GROUPS\n" " mentioned by the -G option without removing\n" " him/her from other groups\n" " -h, --help display this help message and exit\n" " -l, --login NEW_LOGIN new value of the login name\n" " -L, --lock lock the user account\n" " -m, --move-home move contents of the home directory to the\n" " new location (use only with -d)\n" " -o, --non-unique allow using duplicate (non-unique) UID\n" " -p, --password PASSWORD use encrypted password for the new password\n" " -s, --shell SHELL new login shell for the user account\n" " -u, --uid UID new UID for the user account\n" " -U, --unlock unlock the user account\n" "%s" "\n"), #ifdef WITH_SELINUX _(" -Z, --selinux-user new SELinux user mapping for the user account\n") #else "" #endif ); exit (status); } /* * update encrypted password string (for both shadow and non-shadow * passwords) */ static char *new_pw_passwd (char *pw_pass) { if (Lflg && ('!' != pw_pass[0])) { char *buf = xmalloc (strlen (pw_pass) + 2); #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "updating passwd", user_newname, (unsigned int) user_newid, 0); #endif SYSLOG ((LOG_INFO, "lock user '%s' password", user_newname)); strcpy (buf, "!"); strcat (buf, pw_pass); pw_pass = buf; } else if (Uflg && pw_pass[0] == '!') { char *s; if (pw_pass[1] == '\0') { fprintf (stderr, _("%s: unlocking the user's password would result in a passwordless account.\n" "You should set a password with usermod -p to unlock this user's password.\n"), Prog); return pw_pass; } #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "updating password", user_newname, (unsigned int) user_newid, 0); #endif SYSLOG ((LOG_INFO, "unlock user '%s' password", user_newname)); s = pw_pass; while ('\0' != *s) { *s = *(s + 1); s++; } } else if (pflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing password", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' password", user_newname)); pw_pass = xstrdup (user_pass); } return pw_pass; } /* * new_pwent - initialize the values in a password file entry * * new_pwent() takes all of the values that have been entered and fills * in a (struct passwd) with them. */ static void new_pwent (struct passwd *pwent) { if (lflg) { if (pw_locate (user_newname) != NULL) { fprintf (stderr, _("%s: user '%s' already exists in %s\n"), Prog, user_newname, pw_dbname ()); fail_exit (E_NAME_IN_USE); } #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing name", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user name '%s' to '%s'", pwent->pw_name, user_newname)); pwent->pw_name = xstrdup (user_newname); } if (!is_shadow_pwd) { pwent->pw_passwd = new_pw_passwd (pwent->pw_passwd); } if (uflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing uid", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' UID from '%d' to '%d'", pwent->pw_name, pwent->pw_uid, user_newid)); pwent->pw_uid = user_newid; } if (gflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing primary group", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' GID from '%d' to '%d'", pwent->pw_name, pwent->pw_gid, user_newgid)); pwent->pw_gid = user_newgid; } if (cflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing comment", user_newname, (unsigned int) user_newid, 1); #endif pwent->pw_gecos = user_newcomment; } if (dflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing home directory", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' home from '%s' to '%s'", pwent->pw_name, pwent->pw_dir, user_newhome)); pwent->pw_dir = user_newhome; } if (sflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing user shell", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' shell from '%s' to '%s'", pwent->pw_name, pwent->pw_shell, user_newshell)); pwent->pw_shell = user_newshell; } } /* * new_spent - initialize the values in a shadow password file entry * * new_spent() takes all of the values that have been entered and fills * in a (struct spwd) with them. */ static void new_spent (struct spwd *spent) { if (lflg) { if (spw_locate (user_newname) != NULL) { fprintf (stderr, _("%s: user '%s' already exists in %s\n"), Prog, user_newname, spw_dbname ()); fail_exit (E_NAME_IN_USE); } spent->sp_namp = xstrdup (user_newname); } if (fflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing inactive days", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' inactive from '%ld' to '%ld'", spent->sp_namp, spent->sp_inact, user_newinactive)); spent->sp_inact = user_newinactive; } if (eflg) { /* log dates rather than numbers of days. */ char new_exp[16], old_exp[16]; date_to_str (new_exp, sizeof(new_exp), user_newexpire * DAY, "never"); date_to_str (old_exp, sizeof(old_exp), user_expire * DAY, "never"); #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing expiration date", user_newname, (unsigned int) user_newid, 1); #endif SYSLOG ((LOG_INFO, "change user '%s' expiration from '%s' to '%s'", spent->sp_namp, old_exp, new_exp)); spent->sp_expire = user_newexpire; } spent->sp_pwdp = new_pw_passwd (spent->sp_pwdp); if (pflg) { spent->sp_lstchg = (long) time ((time_t *) 0) / SCALE; if (0 == spent->sp_lstchg) { /* Better disable aging than requiring a password * change */ spent->sp_lstchg = -1; } } } /* * fail_exit - exit with an error code after unlocking files */ static void fail_exit (int code) { if (gr_locked) { if (gr_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, gr_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ())); /* continue */ } } #ifdef SHADOWGRP if (sgr_locked) { if (sgr_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, sgr_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ())); /* continue */ } } #endif if (spw_locked) { if (spw_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, spw_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", spw_dbname ())); /* continue */ } } if (pw_locked) { if (pw_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, pw_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", pw_dbname ())); /* continue */ } } #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "modifying account", user_name, AUDIT_NO_ID, 0); #endif exit (code); } static void update_group (void) { bool is_member; bool was_member; bool changed; const struct group *grp; struct group *ngrp; changed = false; /* * Scan through the entire group file looking for the groups that * the user is a member of. */ while ((grp = gr_next ()) != NULL) { /* * See if the user specified this group as one of their * concurrent groups. */ was_member = is_on_list (grp->gr_mem, user_name); is_member = Gflg && ( (was_member && aflg) || is_on_list (user_groups, grp->gr_name)); if (!was_member && !is_member) { continue; } ngrp = __gr_dup (grp); if (NULL == ngrp) { fprintf (stderr, _("%s: Out of memory. Cannot update %s.\n"), Prog, gr_dbname ()); fail_exit (E_GRP_UPDATE); } if (was_member && (!Gflg || is_member)) { if (lflg) { ngrp->gr_mem = del_list (ngrp->gr_mem, user_name); ngrp->gr_mem = add_list (ngrp->gr_mem, user_newname); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing group member", user_newname, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "change '%s' to '%s' in group '%s'", user_name, user_newname, ngrp->gr_name)); } } else if (was_member && !aflg && Gflg && !is_member) { ngrp->gr_mem = del_list (ngrp->gr_mem, user_name); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "removing group member", user_name, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "delete '%s' from group '%s'", user_name, ngrp->gr_name)); } else if (!was_member && Gflg && is_member) { ngrp->gr_mem = add_list (ngrp->gr_mem, user_newname); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "adding user to group", user_name, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "add '%s' to group '%s'", user_newname, ngrp->gr_name)); } if (!changed) { continue; } changed = false; if (gr_update (ngrp) == 0) { fprintf (stderr, _("%s: failed to prepare the new %s entry '%s'\n"), Prog, gr_dbname (), ngrp->gr_name); SYSLOG ((LOG_WARN, "failed to prepare the new %s entry '%s'", gr_dbname (), ngrp->gr_name)); fail_exit (E_GRP_UPDATE); } } } #ifdef SHADOWGRP static void update_gshadow (void) { bool is_member; bool was_member; bool was_admin; bool changed; const struct sgrp *sgrp; struct sgrp *nsgrp; changed = false; /* * Scan through the entire shadow group file looking for the groups * that the user is a member of. */ while ((sgrp = sgr_next ()) != NULL) { /* * See if the user was a member of this group */ was_member = is_on_list (sgrp->sg_mem, user_name); /* * See if the user was an administrator of this group */ was_admin = is_on_list (sgrp->sg_adm, user_name); /* * See if the user specified this group as one of their * concurrent groups. */ is_member = Gflg && is_on_list (user_groups, sgrp->sg_name); is_member = Gflg && ( (was_member && aflg) || is_on_list (user_groups, sgrp->sg_name)); if (!was_member && !was_admin && !is_member) { continue; } nsgrp = __sgr_dup (sgrp); if (NULL == nsgrp) { fprintf (stderr, _("%s: Out of memory. Cannot update %s.\n"), Prog, sgr_dbname ()); fail_exit (E_GRP_UPDATE); } if (was_admin && lflg) { nsgrp->sg_adm = del_list (nsgrp->sg_adm, user_name); nsgrp->sg_adm = add_list (nsgrp->sg_adm, user_newname); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing admin name in shadow group", user_name, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "change admin '%s' to '%s' in shadow group '%s'", user_name, user_newname, nsgrp->sg_name)); } if (was_member && (!Gflg || is_member)) { if (lflg) { nsgrp->sg_mem = del_list (nsgrp->sg_mem, user_name); nsgrp->sg_mem = add_list (nsgrp->sg_mem, user_newname); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing member in shadow group", user_name, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "change '%s' to '%s' in shadow group '%s'", user_name, user_newname, nsgrp->sg_name)); } } else if (was_member && !aflg && Gflg && !is_member) { nsgrp->sg_mem = del_list (nsgrp->sg_mem, user_name); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "removing user from shadow group", user_name, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "delete '%s' from shadow group '%s'", user_name, nsgrp->sg_name)); } else if (!was_member && Gflg && is_member) { nsgrp->sg_mem = add_list (nsgrp->sg_mem, user_newname); changed = true; #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "adding user to shadow group", user_newname, AUDIT_NO_ID, 1); #endif SYSLOG ((LOG_INFO, "add '%s' to shadow group '%s'", user_newname, nsgrp->sg_name)); } if (!changed) { continue; } changed = false; /* * Update the group entry to reflect the changes. */ if (sgr_update (nsgrp) == 0) { fprintf (stderr, _("%s: failed to prepare the new %s entry '%s'\n"), Prog, sgr_dbname (), nsgrp->sg_name); SYSLOG ((LOG_WARN, "failed to prepare the new %s entry '%s'", sgr_dbname (), nsgrp->sg_name)); fail_exit (E_GRP_UPDATE); } } } #endif /* SHADOWGRP */ /* * grp_update - add user to secondary group set * * grp_update() takes the secondary group set given in user_groups and * adds the user to each group given by that set. */ static void grp_update (void) { update_group (); #ifdef SHADOWGRP if (is_shadow_grp) { update_gshadow (); } #endif } /* * process_flags - perform command line argument setting * * process_flags() interprets the command line arguments and sets the * values that the user will be created with accordingly. The values * are checked for sanity. */ static void process_flags (int argc, char **argv) { const struct group *grp; bool anyflag = false; if ((1 == argc) || ('-' == argv[argc - 1][0])) { usage (E_USAGE); } { const struct passwd *pwd; /* local, no need for xgetpwnam */ pwd = getpwnam (argv[argc - 1]); if (NULL == pwd) { fprintf (stderr, _("%s: user '%s' does not exist\n"), Prog, argv[argc - 1]); exit (E_NOTFOUND); } user_name = argv[argc - 1]; user_id = pwd->pw_uid; user_gid = pwd->pw_gid; user_comment = xstrdup (pwd->pw_gecos); user_home = xstrdup (pwd->pw_dir); user_shell = xstrdup (pwd->pw_shell); } user_newname = user_name; user_newid = user_id; user_newgid = user_gid; user_newcomment = user_comment; user_newhome = user_home; user_newshell = user_shell; #ifdef USE_NIS /* * Now make sure it isn't an NIS user. */ if (__ispwNIS ()) { char *nis_domain; char *nis_master; fprintf (stderr, _("%s: user %s is a NIS user\n"), Prog, user_name); if ( !yp_get_default_domain (&nis_domain) && !yp_master (nis_domain, "passwd.byname", &nis_master)) { fprintf (stderr, _("%s: %s is the NIS master\n"), Prog, nis_master); } exit (E_NOTFOUND); } #endif { const struct spwd *spwd = NULL; /* local, no need for xgetspnam */ if (is_shadow_pwd && ((spwd = getspnam (user_name)) != NULL)) { user_expire = spwd->sp_expire; user_inactive = spwd->sp_inact; user_newexpire = user_expire; user_newinactive = user_inactive; } } { /* * Parse the command line options. */ int c; static struct option long_options[] = { {"append", no_argument, NULL, 'a'}, {"comment", required_argument, NULL, 'c'}, {"home", required_argument, NULL, 'd'}, {"expiredate", required_argument, NULL, 'e'}, {"inactive", required_argument, NULL, 'f'}, {"gid", required_argument, NULL, 'g'}, {"groups", required_argument, NULL, 'G'}, {"help", no_argument, NULL, 'h'}, {"login", required_argument, NULL, 'l'}, {"lock", no_argument, NULL, 'L'}, {"move-home", no_argument, NULL, 'm'}, {"non-unique", no_argument, NULL, 'o'}, {"password", required_argument, NULL, 'p'}, #ifdef WITH_SELINUX {"selinux-user", required_argument, NULL, 'Z'}, #endif {"shell", required_argument, NULL, 's'}, {"uid", required_argument, NULL, 'u'}, {"unlock", no_argument, NULL, 'U'}, {NULL, 0, NULL, '\0'} }; while ((c = getopt_long (argc, argv, #ifdef WITH_SELINUX "ac:d:e:f:g:G:hl:Lmop:s:u:UZ:", #else "ac:d:e:f:g:G:hl:Lmop:s:u:U", #endif long_options, NULL)) != -1) { switch (c) { case 'a': aflg = true; break; case 'c': if (!VALID (optarg)) { fprintf (stderr, _("%s: invalid field '%s'\n"), Prog, optarg); exit (E_BAD_ARG); } user_newcomment = optarg; cflg = true; break; case 'd': if (!VALID (optarg)) { fprintf (stderr, _("%s: invalid field '%s'\n"), Prog, optarg); exit (E_BAD_ARG); } dflg = true; user_newhome = optarg; break; case 'e': if ('\0' != *optarg) { user_newexpire = strtoday (optarg); if (user_newexpire == -1) { fprintf (stderr, _("%s: invalid date '%s'\n"), Prog, optarg); exit (E_BAD_ARG); } user_newexpire *= DAY / SCALE; } else { user_newexpire = -1; } eflg = true; break; case 'f': if ( (getlong (optarg, &user_newinactive) == 0) || (user_newinactive < -1)) { fprintf (stderr, _("%s: invalid numeric argument '%s'\n"), Prog, optarg); usage (E_USAGE); } fflg = true; break; case 'g': grp = getgr_nam_gid (optarg); if (NULL == grp) { fprintf (stderr, _("%s: group '%s' does not exist\n"), Prog, optarg); exit (E_NOTFOUND); } user_newgid = grp->gr_gid; gflg = true; break; case 'G': if (get_groups (optarg) != 0) { exit (E_NOTFOUND); } Gflg = true; break; case 'h': usage (E_SUCCESS); case 'l': if (!is_valid_user_name (optarg)) { fprintf (stderr, _("%s: invalid field '%s'\n"), Prog, optarg); exit (E_BAD_ARG); } lflg = true; user_newname = optarg; break; case 'L': Lflg = true; break; case 'm': mflg = true; break; case 'o': oflg = true; break; case 'p': user_pass = optarg; pflg = true; break; case 's': if (!VALID (optarg)) { fprintf (stderr, _("%s: invalid field '%s'\n"), Prog, optarg); exit (E_BAD_ARG); } user_newshell = optarg; sflg = true; break; case 'u': if ( (get_uid (optarg, &user_newid) ==0) || (user_newid == (uid_t)-1)) { fprintf (stderr, _("%s: invalid user ID '%s'\n"), Prog, optarg); exit (E_BAD_ARG); } uflg = true; break; case 'U': Uflg = true; break; #ifdef WITH_SELINUX case 'Z': if (is_selinux_enabled () > 0) { user_selinux = optarg; Zflg = true; } else { fprintf (stderr, _("%s: -Z requires SELinux enabled kernel\n"), Prog); exit (E_BAD_ARG); } break; #endif default: usage (E_USAGE); } anyflag = true; } } if (!anyflag) { fprintf (stderr, _("%s: no flags given\n"), Prog); exit (E_USAGE); } if (user_newid == user_id) { uflg = false; oflg = false; } if (user_newgid == user_gid) { gflg = false; } if (strcmp (user_newshell, user_shell) == 0) { sflg = false; } if (strcmp (user_newname, user_name) == 0) { lflg = false; } if (user_newinactive == user_inactive) { fflg = false; } if (user_newexpire == user_expire) { eflg = false; } if (strcmp (user_newhome, user_home) == 0) { dflg = false; mflg = false; } if (strcmp (user_newcomment, user_comment) == 0) { cflg = false; } if (!(Uflg || uflg || sflg || pflg || oflg || mflg || Lflg || lflg || Gflg || gflg || fflg || eflg || dflg || cflg #ifdef WITH_SELINUX || Zflg #endif )) { fprintf (stderr, _("%s: no changes\n"), Prog); exit (E_SUCCESS); } if (!is_shadow_pwd && (eflg || fflg)) { fprintf (stderr, _("%s: shadow passwords required for -e and -f\n"), Prog); exit (E_USAGE); } if (optind != argc - 1) { usage (E_USAGE); } if (aflg && (!Gflg)) { fprintf (stderr, _("%s: %s flag is only allowed with the %s flag\n"), Prog, "-a", "-G"); usage (E_USAGE); exit (E_USAGE); } if ((Lflg && (pflg || Uflg)) || (pflg && Uflg)) { fprintf (stderr, _("%s: the -L, -p, and -U flags are exclusive\n"), Prog); usage (E_USAGE); exit (E_USAGE); } if (oflg && !uflg) { fprintf (stderr, _("%s: %s flag is only allowed with the %s flag\n"), Prog, "-o", "-u"); usage (E_USAGE); exit (E_USAGE); } if (mflg && !dflg) { fprintf (stderr, _("%s: %s flag is only allowed with the %s flag\n"), Prog, "-m", "-d"); usage (E_USAGE); exit (E_USAGE); } /* local, no need for xgetpwnam */ if (lflg && (getpwnam (user_newname) != NULL)) { fprintf (stderr, _("%s: user '%s' already exists\n"), Prog, user_newname); exit (E_NAME_IN_USE); } /* local, no need for xgetpwuid */ if (uflg && !oflg && (getpwuid (user_newid) != NULL)) { fprintf (stderr, _("%s: UID '%lu' already exists\n"), Prog, (unsigned long) user_newid); exit (E_UID_IN_USE); } } /* * close_files - close all of the files that were opened * * close_files() closes all of the files that were opened for this new * user. This causes any modified entries to be written out. */ static void close_files (void) { if (pw_close () == 0) { fprintf (stderr, _("%s: failure while writing changes to %s\n"), Prog, pw_dbname ()); SYSLOG ((LOG_ERR, "failure while writing changes to %s", pw_dbname ())); fail_exit (E_PW_UPDATE); } if (is_shadow_pwd && (spw_close () == 0)) { fprintf (stderr, _("%s: failure while writing changes to %s\n"), Prog, spw_dbname ()); SYSLOG ((LOG_ERR, "failure while writing changes to %s", spw_dbname ())); fail_exit (E_PW_UPDATE); } if (Gflg || lflg) { if (gr_close () == 0) { fprintf (stderr, _("%s: failure while writing changes to %s\n"), Prog, gr_dbname ()); SYSLOG ((LOG_ERR, "failure while writing changes to %s", gr_dbname ())); fail_exit (E_GRP_UPDATE); } #ifdef SHADOWGRP if (is_shadow_grp) { if (sgr_close () == 0) { fprintf (stderr, _("%s: failure while writing changes to %s\n"), Prog, sgr_dbname ()); SYSLOG ((LOG_ERR, "failure while writing changes to %s", sgr_dbname ())); fail_exit (E_GRP_UPDATE); } if (sgr_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, sgr_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ())); /* continue */ } } #endif if (gr_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, gr_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ())); /* continue */ } } if (is_shadow_pwd) { if (spw_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, spw_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", spw_dbname ())); /* continue */ } } if (pw_unlock () == 0) { fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, pw_dbname ()); SYSLOG ((LOG_ERR, "failed to unlock %s", pw_dbname ())); /* continue */ } pw_locked = false; spw_locked = false; gr_locked = false; #ifdef SHADOWGRP sgr_locked = false; #endif /* * Close the DBM and/or flat files */ endpwent (); endspent (); endgrent (); #ifdef SHADOWGRP endsgent (); #endif } /* * open_files - lock and open the password files * * open_files() opens the two password files. */ static void open_files (void) { if (pw_lock () == 0) { fprintf (stderr, _("%s: cannot lock %s; try again later.\n"), Prog, pw_dbname ()); fail_exit (E_PW_UPDATE); } pw_locked = true; if (pw_open (O_RDWR) == 0) { fprintf (stderr, _("%s: cannot open %s\n"), Prog, pw_dbname ()); fail_exit (E_PW_UPDATE); } if (is_shadow_pwd && (spw_lock () == 0)) { fprintf (stderr, _("%s: cannot lock %s; try again later.\n"), Prog, spw_dbname ()); fail_exit (E_PW_UPDATE); } spw_locked = true; if (is_shadow_pwd && (spw_open (O_RDWR) == 0)) { fprintf (stderr, _("%s: cannot open %s\n"), Prog, spw_dbname ()); fail_exit (E_PW_UPDATE); } if (Gflg || lflg) { /* * Lock and open the group file. This will load all of the * group entries. */ if (gr_lock () == 0) { fprintf (stderr, _("%s: cannot lock %s; try again later.\n"), Prog, gr_dbname ()); fail_exit (E_GRP_UPDATE); } gr_locked = true; if (gr_open (O_RDWR) == 0) { fprintf (stderr, _("%s: cannot open %s\n"), Prog, gr_dbname ()); fail_exit (E_GRP_UPDATE); } #ifdef SHADOWGRP if (is_shadow_grp && (sgr_lock () == 0)) { fprintf (stderr, _("%s: cannot lock %s; try again later.\n"), Prog, sgr_dbname ()); fail_exit (E_GRP_UPDATE); } sgr_locked = true; if (is_shadow_grp && (sgr_open (O_RDWR) == 0)) { fprintf (stderr, _("%s: cannot open %s\n"), Prog, sgr_dbname ()); fail_exit (E_GRP_UPDATE); } #endif } } /* * usr_update - create the user entries * * usr_update() creates the password file entries for this user and * will update the group entries if required. */ static void usr_update (void) { struct passwd pwent; const struct passwd *pwd; struct spwd spent; const struct spwd *spwd = NULL; /* * Locate the entry in /etc/passwd, which MUST exist. */ pwd = pw_locate (user_name); if (NULL == pwd) { fprintf (stderr, _("%s: user '%s' does not exist in %s\n"), Prog, user_name, pw_dbname ()); fail_exit (E_NOTFOUND); } pwent = *pwd; new_pwent (&pwent); /* * Locate the entry in /etc/shadow. It doesn't have to exist, and * won't be created if it doesn't. */ if (is_shadow_pwd && ((spwd = spw_locate (user_name)) != NULL)) { spent = *spwd; new_spent (&spent); } if (lflg || uflg || gflg || cflg || dflg || sflg || pflg || Lflg || Uflg) { if (pw_update (&pwent) == 0) { fprintf (stderr, _("%s: failed to prepare the new %s entry '%s'\n"), Prog, pw_dbname (), pwent.pw_name); fail_exit (E_PW_UPDATE); } if (lflg && (pw_remove (user_name) == 0)) { fprintf (stderr, _("%s: cannot remove entry '%s' from %s\n"), Prog, user_name, pw_dbname ()); fail_exit (E_PW_UPDATE); } } if ((NULL != spwd) && (lflg || eflg || fflg || pflg || Lflg || Uflg)) { if (spw_update (&spent) == 0) { fprintf (stderr, _("%s: failed to prepare the new %s entry '%s'\n"), Prog, spw_dbname (), spent.sp_namp); fail_exit (E_PW_UPDATE); } if (lflg && (spw_remove (user_name) == 0)) { fprintf (stderr, _("%s: cannot remove entry '%s' from %s\n"), Prog, user_name, spw_dbname ()); fail_exit (E_PW_UPDATE); } } } /* * move_home - move the user's home directory * * move_home() moves the user's home directory to a new location. The * files will be copied if the directory cannot simply be renamed. */ static void move_home (void) { struct stat sb; if (mflg && (stat (user_home, &sb) == 0)) { /* * Don't try to move it if it is not a directory * (but /dev/null for example). --marekm */ if (!S_ISDIR (sb.st_mode)) { return; } if (access (user_newhome, F_OK) == 0) { fprintf (stderr, _("%s: directory %s exists\n"), Prog, user_newhome); fail_exit (E_HOMEDIR); } else if (rename (user_home, user_newhome) != 0) { // FIXME: rename above may have broken symlinks // pointing to the user's home directory // with an absolute path. if (errno == EXDEV) { if (mkdir (user_newhome, sb.st_mode & 0777) != 0) { fprintf (stderr, _("%s: can't create %s\n"), Prog, user_newhome); } if (chown (user_newhome, sb.st_uid, sb.st_gid) != 0) { fprintf (stderr, _("%s: can't chown %s\n"), Prog, user_newhome); rmdir (user_newhome); fail_exit (E_HOMEDIR); } // FIXME: the current uid & gid should // also be provided so that only the files // owned by the user/group have their // ownership changed. if (copy_tree (user_home, user_newhome, uflg ? (long int)user_newid : -1, gflg ? (long int)user_newgid : -1) == 0) { if (remove_tree (user_home) != 0) { fprintf (stderr, _("%s: warning: failed to completely remove old home directory %s"), Prog, user_home); } #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "moving home directory", user_newname, (unsigned int) user_newid, 1); #endif return; } /* TODO: do some cleanup if the copy * was started */ (void) remove_tree (user_newhome); } fprintf (stderr, _("%s: cannot rename directory %s to %s\n"), Prog, user_home, user_newhome); fail_exit (E_HOMEDIR); } #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "moving home directory", user_newname, (unsigned int) user_newid, 1); #endif } if (uflg || gflg) { #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing home directory owner", user_newname, (unsigned int) user_newid, 1); #endif chown (dflg ? user_newhome : user_home, uflg ? user_newid : user_id, gflg ? user_newgid : user_gid); } } /* * update_lastlog - update the lastlog file * * Relocate the "lastlog" entries for the user. The old entry is * left alone in case the UID was shared. It doesn't hurt anything * to just leave it be. */ static void update_lastlog (void) { struct lastlog ll; int fd; off_t off_uid = (off_t) user_id * sizeof ll; off_t off_newuid = (off_t) user_newid * sizeof ll; if (access (LASTLOG_FILE, F_OK) != 0) { return; } fd = open (LASTLOG_FILE, O_RDWR); if (-1 == fd) { fprintf (stderr, _("%s: failed to copy the lastlog entry of user %lu to user %lu: %s\n"), Prog, (unsigned long) user_id, (unsigned long) user_newid, strerror (errno)); return; } if ( (lseek (fd, off_uid, SEEK_SET) == off_uid) && (read (fd, &ll, sizeof ll) == (ssize_t) sizeof ll)) { /* Copy the old entry to its new location */ if ( (lseek (fd, off_newuid, SEEK_SET) != off_newuid) || (write (fd, &ll, sizeof ll) != (ssize_t) sizeof ll) || (fsync (fd) != 0) || (close (fd) != 0)) { fprintf (stderr, _("%s: failed to copy the lastlog entry of user %lu to user %lu: %s\n"), Prog, (unsigned long) user_id, (unsigned long) user_newid, strerror (errno)); } } else { /* Assume lseek or read failed because there is * no entry for the old UID */ /* Check if the new UID already has an entry */ if ( (lseek (fd, off_newuid, SEEK_SET) == off_newuid) && (read (fd, &ll, sizeof ll) == (ssize_t) sizeof ll)) { /* Reset the new uid's lastlog entry */ memzero (&ll, sizeof (ll)); if ( (lseek (fd, off_newuid, SEEK_SET) != off_newuid) || (write (fd, &ll, sizeof ll) != (ssize_t) sizeof ll) || (fsync (fd) != 0) || (close (fd) != 0)) { fprintf (stderr, _("%s: failed to copy the lastlog entry of user %lu to user %lu: %s\n"), Prog, (unsigned long) user_id, (unsigned long) user_newid, strerror (errno)); } } else { (void) close (fd); } } } /* * update_faillog - update the faillog file * * Relocate the "faillog" entries for the user. The old entry is * left alone in case the UID was shared. It doesn't hurt anything * to just leave it be. */ static void update_faillog (void) { struct faillog fl; int fd; off_t off_uid = (off_t) user_id * sizeof fl; off_t off_newuid = (off_t) user_newid * sizeof fl; if (access (FAILLOG_FILE, F_OK) != 0) { return; } fd = open (FAILLOG_FILE, O_RDWR); if (-1 == fd) { fprintf (stderr, _("%s: failed to copy the faillog entry of user %lu to user %lu: %s\n"), Prog, (unsigned long) user_id, (unsigned long) user_newid, strerror (errno)); return; } if ( (lseek (fd, off_uid, SEEK_SET) == off_uid) && (read (fd, (char *) &fl, sizeof fl) == (ssize_t) sizeof fl)) { /* Copy the old entry to its new location */ if ( (lseek (fd, off_newuid, SEEK_SET) != off_newuid) || (write (fd, &fl, sizeof fl) != (ssize_t) sizeof fl) || (fsync (fd) != 0) || (close (fd) != 0)) { fprintf (stderr, _("%s: failed to copy the faillog entry of user %lu to user %lu: %s\n"), Prog, (unsigned long) user_id, (unsigned long) user_newid, strerror (errno)); } } else { /* Assume lseek or read failed because there is * no entry for the old UID */ /* Check if the new UID already has an entry */ if ( (lseek (fd, off_newuid, SEEK_SET) == off_newuid) && (read (fd, &fl, sizeof fl) == (ssize_t) sizeof fl)) { /* Reset the new uid's lastlog entry */ memzero (&fl, sizeof (fl)); if ( (lseek (fd, off_newuid, SEEK_SET) != off_newuid) || (write (fd, &fl, sizeof fl) != (ssize_t) sizeof fl) || (close (fd) != 0)) { fprintf (stderr, _("%s: failed to copy the faillog entry of user %lu to user %lu: %s\n"), Prog, (unsigned long) user_id, (unsigned long) user_newid, strerror (errno)); } } else { (void) close (fd); } } } #ifndef NO_MOVE_MAILBOX /* * This is the new and improved code to carefully chown/rename the user's * mailbox. Maybe I am too paranoid but the mail spool dir sometimes * happens to be mode 1777 (this makes mail user agents work without * being setgid mail, but is NOT recommended; they all should be fixed * to use movemail). --marekm */ static void move_mailbox (void) { const char *maildir; char mailfile[1024], newmailfile[1024]; int fd; struct stat st; maildir = getdef_str ("MAIL_DIR"); #ifdef MAIL_SPOOL_DIR if ((NULL == maildir) && (getdef_str ("MAIL_FILE") == NULL)) { maildir = MAIL_SPOOL_DIR; } #endif if (NULL == maildir) { return; } /* * O_NONBLOCK is to make sure open won't hang on mandatory locks. * We do fstat/fchown to make sure there are no races (someone * replacing /var/spool/mail/luser with a hard link to /etc/passwd * between stat and chown). --marekm */ snprintf (mailfile, sizeof mailfile, "%s/%s", maildir, user_name); fd = open (mailfile, O_RDONLY | O_NONBLOCK, 0); if (fd < 0) { /* no need for warnings if the mailbox doesn't exist */ if (errno != ENOENT) { perror (mailfile); } return; } if (fstat (fd, &st) < 0) { perror ("fstat"); close (fd); return; } if (st.st_uid != user_id) { /* better leave it alone */ fprintf (stderr, _("%s: warning: %s not owned by %s\n"), Prog, mailfile, user_name); close (fd); return; } if (uflg) { if (fchown (fd, user_newid, (gid_t) - 1) < 0) { perror (_("failed to change mailbox owner")); } #ifdef WITH_AUDIT else { audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing mail file owner", user_newname, (unsigned int) user_newid, 1); } #endif } close (fd); if (lflg) { snprintf (newmailfile, sizeof newmailfile, "%s/%s", maildir, user_newname); if ( (link (mailfile, newmailfile) != 0) || (unlink (mailfile) != 0)) { perror (_("failed to rename mailbox")); } #ifdef WITH_AUDIT else { audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "changing mail file name", user_newname, (unsigned int) user_newid, 1); } #endif } } #endif /* * main - usermod command */ int main (int argc, char **argv) { #ifdef ACCT_TOOLS_SETUID #ifdef USE_PAM pam_handle_t *pamh = NULL; int retval; #endif /* USE_PAM */ #endif /* ACCT_TOOLS_SETUID */ #ifdef WITH_AUDIT audit_help_open (); #endif /* * Get my name so that I can use it to report errors. */ Prog = Basename (argv[0]); (void) setlocale (LC_ALL, ""); (void) bindtextdomain (PACKAGE, LOCALEDIR); (void) textdomain (PACKAGE); sys_ngroups = sysconf (_SC_NGROUPS_MAX); user_groups = (char **) malloc (sizeof (char *) * (1 + sys_ngroups)); user_groups[0] = (char *) 0; OPENLOG ("usermod"); is_shadow_pwd = spw_file_present (); #ifdef SHADOWGRP is_shadow_grp = sgr_file_present (); #endif process_flags (argc, argv); /* * The home directory, the username and the user's UID should not * be changed while the user is logged in. */ if ( (uflg || lflg || dflg) && (user_busy (user_name, user_id) != 0)) { fprintf (stderr, _("%s: user %s is currently logged in\n"), Prog, user_name); exit (E_USER_BUSY); } #ifdef ACCT_TOOLS_SETUID #ifdef USE_PAM { struct passwd *pampw; pampw = getpwuid (getuid ()); /* local, no need for xgetpwuid */ if (pampw == NULL) { fprintf (stderr, _("%s: Cannot determine your user name.\n"), Prog); exit (1); } retval = pam_start ("usermod", pampw->pw_name, &conv, &pamh); } if (PAM_SUCCESS == retval) { retval = pam_authenticate (pamh, 0); } if (PAM_SUCCESS == retval) { retval = pam_acct_mgmt (pamh, 0); } if (NULL != pamh) { (void) pam_end (pamh, retval); } if (PAM_SUCCESS != retval) { fprintf (stderr, _("%s: PAM authentication failed\n"), Prog); exit (1); } #endif /* USE_PAM */ #endif /* ACCT_TOOLS_SETUID */ /* * Do the hard stuff - open the files, change the user entries, * change the home directory, then close and update the files. */ open_files (); if ( cflg || dflg || eflg || fflg || gflg || Lflg || lflg || pflg || sflg || uflg || Uflg) { usr_update (); } if (Gflg || lflg) { grp_update (); } close_files (); nscd_flush_cache ("passwd"); nscd_flush_cache ("group"); #ifdef WITH_SELINUX if (Zflg) { selinux_update_mapping (); } #endif if (mflg) { move_home (); } #ifndef NO_MOVE_MAILBOX if (lflg || uflg) { move_mailbox (); } #endif if (uflg) { // FIXME: gflg also, except for faillog/lastlog update_lastlog (); update_faillog (); /* * Change the UID on all of the files owned by `user_id' to * `user_newid' in the user's home directory. */ chown_tree (dflg ? user_newhome : user_home, user_id, user_newid, user_gid, gflg ? user_newgid : user_gid); } return E_SUCCESS; } #ifdef WITH_SELINUX static void selinux_update_mapping (void) { const char *argv[7]; if (is_selinux_enabled () <= 0) return; if (*user_selinux) { argv[0] = "/usr/sbin/semanage"; argv[1] = "login"; argv[2] = "-m"; argv[3] = "-s"; argv[4] = user_selinux; argv[5] = user_name; argv[6] = NULL; if (safe_system (argv[0], argv, NULL, 1)) { argv[2] = "-a"; if (safe_system (argv[0], argv, NULL, 0)) { fprintf (stderr, _("%s: warning: the user name %s to %s SELinux user mapping failed.\n"), Prog, user_name, user_selinux); #ifdef WITH_AUDIT audit_logger (AUDIT_USER_CHAUTHTOK, Prog, "modifying User mapping ", user_name, (unsigned int) user_id, 0); #endif } } } } #endif