Add support for skeleton files from /usr/etc/skel
This patch is used by openSUSE to make useradd look for skeleton files in /usr/etc/skel additionally to /etc/skel in accordance with https://uapi-group.org/specifications/specs/base_directory_specification/
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@ -448,6 +448,14 @@ static int copy_entry (const struct path_info *src, const struct path_info *dst,
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old_uid, new_uid, old_gid, new_gid);
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}
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/*
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* If the destination already exists do nothing.
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* This is after the copy_dir above to still iterate into subdirectories.
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*/
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if (fstatat(dst->dirfd, dst->name, &sb, AT_SYMLINK_NOFOLLOW) != -1) {
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return 0;
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}
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/*
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* Copy any symbolic links
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*/
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@ -507,6 +515,7 @@ static int copy_dir (const struct path_info *src, const struct path_info *dst,
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gid_t old_gid, gid_t new_gid)
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{
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int err = 0;
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struct stat dst_sb;
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/*
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* Create a new target directory, make it owned by
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@ -518,6 +527,15 @@ static int copy_dir (const struct path_info *src, const struct path_info *dst,
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return -1;
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}
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#endif /* WITH_SELINUX */
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/*
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* If the destination is already a directory, don't change it
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* but copy into it (recursively).
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*/
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if (fstatat(dst->dirfd, dst->name, &dst_sb, AT_SYMLINK_NOFOLLOW) == 0 && S_ISDIR(dst_sb.st_mode)) {
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return (copy_tree (src, dst, false, reset_selinux,
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old_uid, new_uid, old_gid, new_gid) != 0);
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}
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if ( (mkdirat (dst->dirfd, dst->name, 0700) != 0)
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|| (chownat_if_needed (dst, statp,
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old_uid, new_uid, old_gid, new_gid) != 0)
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@ -61,6 +61,9 @@
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#ifndef SKEL_DIR
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#define SKEL_DIR "/etc/skel"
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#endif
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#ifndef USRSKELDIR
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#define USRSKELDIR "/usr/etc/skel"
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#endif
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#ifndef USER_DEFAULTS_FILE
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#define USER_DEFAULTS_FILE "/etc/default/useradd"
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#define NEW_USER_FILE "/etc/default/nuaddXXXXXX"
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@ -85,6 +88,7 @@ static const char *def_gname = "other";
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static const char *def_home = "/home";
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static const char *def_shell = "/bin/bash";
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static const char *def_template = SKEL_DIR;
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static const char *def_usrtemplate = USRSKELDIR;
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static const char *def_create_mail_spool = "yes";
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static const char *def_log_init = "yes";
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@ -190,6 +194,7 @@ static bool home_added = false;
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#define DINACT "INACTIVE="
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#define DEXPIRE "EXPIRE="
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#define DSKEL "SKEL="
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#define DUSRSKEL "USRSKEL="
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#define DCREATE_MAIL_SPOOL "CREATE_MAIL_SPOOL="
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#define DLOG_INIT "LOG_INIT="
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@ -473,6 +478,29 @@ static void get_defaults (void)
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}
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}
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/*
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* Default Usr Skeleton information
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*/
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else if (MATCH (buf, DUSRSKEL)) {
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if ('\0' == *cp) {
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cp = USRSKELDIR; /* XXX warning: const */
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}
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if(prefix[0]) {
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size_t len;
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int wlen;
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char* _def_usrtemplate; /* avoid const warning */
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len = strlen(prefix) + strlen(cp) + 2;
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_def_usrtemplate = xmalloc(len);
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wlen = snprintf(_def_usrtemplate, len, "%s/%s", prefix, cp);
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assert (wlen == (int) len -1);
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def_usrtemplate = _def_usrtemplate;
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}
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else {
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def_usrtemplate = xstrdup (cp);
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}
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}
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/*
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* Create by default user mail spool or not ?
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*/
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@ -516,6 +544,7 @@ static void show_defaults (void)
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printf ("EXPIRE=%s\n", def_expire);
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printf ("SHELL=%s\n", def_shell);
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printf ("SKEL=%s\n", def_template);
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printf ("USRSKEL=%s\n", def_usrtemplate);
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printf ("CREATE_MAIL_SPOOL=%s\n", def_create_mail_spool);
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printf ("LOG_INIT=%s\n", def_log_init);
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}
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@ -545,6 +574,7 @@ static int set_defaults (void)
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bool out_expire = false;
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bool out_shell = false;
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bool out_skel = false;
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bool out_usrskel = false;
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bool out_create_mail_spool = false;
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bool out_log_init = false;
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size_t len;
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@ -661,6 +691,9 @@ static int set_defaults (void)
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} else if (!out_skel && MATCH (buf, DSKEL)) {
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fprintf (ofp, DSKEL "%s\n", def_template);
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out_skel = true;
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} else if (!out_usrskel && MATCH (buf, DUSRSKEL)) {
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fprintf (ofp, DUSRSKEL "%s\n", def_usrtemplate);
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out_usrskel = true;
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} else if (!out_create_mail_spool
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&& MATCH (buf, DCREATE_MAIL_SPOOL)) {
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fprintf (ofp,
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@ -698,6 +731,8 @@ static int set_defaults (void)
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fprintf (ofp, DSHELL "%s\n", def_shell);
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if (!out_skel)
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fprintf (ofp, DSKEL "%s\n", def_template);
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if (!out_usrskel)
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fprintf (ofp, DUSRSKEL "%s\n", def_usrtemplate);
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if (!out_create_mail_spool)
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fprintf (ofp, DCREATE_MAIL_SPOOL "%s\n", def_create_mail_spool);
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@ -2745,6 +2780,8 @@ int main (int argc, char **argv)
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if (home_added) {
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copy_tree (def_template, prefix_user_home, false, true,
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(uid_t)-1, user_id, (gid_t)-1, user_gid);
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copy_tree (def_usrtemplate, prefix_user_home, false, false,
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(uid_t)-1, user_id, (gid_t)-1, user_gid);
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} else {
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fprintf (stderr,
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_("%s: warning: the home directory %s already exists.\n"
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