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adduser: make it accept "adduser USER GROUP" form

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Signed-off-by: Tito Ragusa <farmatito@tiscali.it>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Tito Ragusa 2012-10-08 11:18:08 +02:00 committed by Denys Vlasenko
parent fd77ea505e
commit 8dc6d1a813
1 changed files with 14 additions and 8 deletions
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22
loginutils/adduser.c
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@ -9,9 +9,9 @@
*/ */
//usage:#define adduser_trivial_usage //usage:#define adduser_trivial_usage
//usage: "[OPTIONS] USER" //usage: "[OPTIONS] USER [GROUP]"
//usage:#define adduser_full_usage "\n\n" //usage:#define adduser_full_usage "\n\n"
//usage: "Add a user\n" //usage: "Create new user, or add USER to GROUP\n"
//usage: "\n -h DIR Home directory" //usage: "\n -h DIR Home directory"
//usage: "\n -g GECOS GECOS field" //usage: "\n -g GECOS GECOS field"
//usage: "\n -s SHELL Login shell" //usage: "\n -s SHELL Login shell"
@ -80,7 +80,7 @@ static void passwd_study(struct passwd *p)
} }
} }
static void addgroup_wrapper(struct passwd *p, const char *group_name) static int addgroup_wrapper(struct passwd *p, const char *group_name)
{ {
char *argv[6]; char *argv[6];
@ -110,7 +110,7 @@ static void addgroup_wrapper(struct passwd *p, const char *group_name)
argv[5] = NULL; argv[5] = NULL;
} }
spawn_and_wait(argv); return spawn_and_wait(argv);
} }
static void passwd_wrapper(const char *login_name) NORETURN; static void passwd_wrapper(const char *login_name) NORETURN;
@ -162,9 +162,9 @@ int adduser_main(int argc UNUSED_PARAM, char **argv)
pw.pw_shell = (char *)get_shell_name(); pw.pw_shell = (char *)get_shell_name();
pw.pw_dir = NULL; pw.pw_dir = NULL;
/* exactly one non-option arg */ /* at most two non-option args */
/* disable interactive passwd for system accounts */ /* disable interactive passwd for system accounts */
opt_complementary = "=1:SD:u+"; opt_complementary = "?2:SD:u+";
if (sizeof(pw.pw_uid) == sizeof(int)) { if (sizeof(pw.pw_uid) == sizeof(int)) {
opts = getopt32(argv, "h:g:s:G:DSHu:", &pw.pw_dir, &pw.pw_gecos, &pw.pw_shell, &usegroup, &pw.pw_uid); opts = getopt32(argv, "h:g:s:G:DSHu:", &pw.pw_dir, &pw.pw_gecos, &pw.pw_shell, &usegroup, &pw.pw_uid);
} else { } else {
@ -175,9 +175,16 @@ int adduser_main(int argc UNUSED_PARAM, char **argv)
} }
} }
argv += optind; argv += optind;
pw.pw_name = argv[0];
if (!opts && argv[1]) {
/* if called with two non-option arguments, adduser
* will add an existing user to an existing group.
*/
return addgroup_wrapper(&pw, argv[1]);
}
/* fill in the passwd struct */ /* fill in the passwd struct */
pw.pw_name = argv[0];
die_if_bad_username(pw.pw_name); die_if_bad_username(pw.pw_name);
if (!pw.pw_dir) { if (!pw.pw_dir) {
/* create string for $HOME if not specified already */ /* create string for $HOME if not specified already */
@ -205,7 +212,6 @@ int adduser_main(int argc UNUSED_PARAM, char **argv)
} }
if (ENABLE_FEATURE_CLEAN_UP) if (ENABLE_FEATURE_CLEAN_UP)
free(p); free(p);
#if ENABLE_FEATURE_SHADOWPASSWDS #if ENABLE_FEATURE_SHADOWPASSWDS
/* /etc/shadow fields: /* /etc/shadow fields:
* 1. username * 1. username