util-lib: get_current_dir_name() can return errors other than ENOMEM

[thirdparty/systemd.git] / src / firstboot / firstboot.c

diff --git a/src/firstboot/firstboot.c b/src/firstboot/firstboot.c
index 3805b2943734b6b2ec002575718ab8affce7caea..cee05de7a1dfd9b1081be797d990e56aaed62c94 100644 (file)
--- a/src/firstboot/firstboot.c
+++ b/src/firstboot/firstboot.c
@@ -19,24 +19,22 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-
 #include <fcntl.h>
-#include <unistd.h>
 #include <getopt.h>
 #include <shadow.h>
+#include <unistd.h>
 
-#include "strv.h"
-#include "fileio.h"
+#include "ask-password-api.h"
 #include "copy.h"
-#include "build.h"
+#include "fileio.h"
+#include "hostname-util.h"
+#include "locale-util.h"
 #include "mkdir.h"
-#include "time-util.h"
 #include "path-util.h"
 #include "random-util.h"
-#include "locale-util.h"
-#include "ask-password-api.h"
+#include "strv.h"
 #include "terminal-util.h"
-#include "hostname-util.h"
+#include "time-util.h"
 
 static char *arg_root = NULL;
 static char *arg_locale = NULL;  /* $LANG */
@@ -53,15 +51,6 @@ static bool arg_copy_locale = false;
 static bool arg_copy_timezone = false;
 static bool arg_copy_root_password = false;
 
-static void clear_string(char *x) {
-
-        if (!x)
-                return;
-
-        /* A delicious drop of snake-oil! */
-        memset(x, 'x', strlen(x));
-}
-
 static bool press_any_key(void) {
         char k = 0;
         bool need_nl = true;
@@ -386,12 +375,13 @@ static int prompt_hostname(void) {
                         break;
                 }
 
-                if (!hostname_is_valid(h)) {
+                if (!hostname_is_valid(h, true)) {
                         log_error("Specified hostname invalid.");
                         continue;
                 }
 
-                arg_hostname = h;
+                /* Get rid of the trailing dot that we allow, but don't want to see */
+                arg_hostname = hostname_cleanup(h);
                 h = NULL;
                 break;
         }
@@ -465,9 +455,9 @@ static int prompt_root_password(void) {
         msg2 = strjoina(draw_special_char(DRAW_TRIANGULAR_BULLET), " Please enter new root password again: ");
 
         for (;;) {
-                _cleanup_free_ char *a = NULL, *b = NULL;
+                _cleanup_string_free_erase_ char *a = NULL, *b = NULL;
 
-                r = ask_password_tty(msg1, 0, false, NULL, &a);
+                r = ask_password_tty(msg1, NULL, 0, 0, NULL, &a);
                 if (r < 0)
                         return log_error_errno(r, "Failed to query root password: %m");
 
@@ -476,21 +466,15 @@ static int prompt_root_password(void) {
                         break;
                 }
 
-                r = ask_password_tty(msg2, 0, false, NULL, &b);
-                if (r < 0) {
-                        log_error_errno(r, "Failed to query root password: %m");
-                        clear_string(a);
-                        return r;
-                }
+                r = ask_password_tty(msg2, NULL, 0, 0, NULL, &b);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to query root password: %m");
 
                 if (!streq(a, b)) {
                         log_error("Entered passwords did not match, please try again.");
-                        clear_string(a);
-                        clear_string(b);
                         continue;
                 }
 
-                clear_string(b);
                 arg_root_password = a;
                 a = NULL;
                 break;
@@ -703,23 +687,15 @@ static int parse_argv(int argc, char *argv[]) {
                         return 0;
 
                 case ARG_VERSION:
-                        puts(PACKAGE_STRING);
-                        puts(SYSTEMD_FEATURES);
-                        return 0;
+                        return version();
 
                 case ARG_ROOT:
-                        free(arg_root);
-                        arg_root = path_make_absolute_cwd(optarg);
-                        if (!arg_root)
-                                return log_oom();
+                        arg_root = mfree(arg_root);
+                        r = path_make_absolute_cwd(optarg, &arg_root);
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to make root path absolute: %m");
 
                         path_kill_slashes(arg_root);
-
-                        if (path_equal(arg_root, "/")) {
-                                free(arg_root);
-                                arg_root = NULL;
-                        }
-
                         break;
 
                 case ARG_LOCALE:
@@ -728,9 +704,8 @@ static int parse_argv(int argc, char *argv[]) {
                                 return -EINVAL;
                         }
 
-                        free(arg_locale);
-                        arg_locale = strdup(optarg);
-                        if (!arg_locale)
+                        r = free_and_strdup(&arg_locale, optarg);
+                        if (r < 0)
                                 return log_oom();
 
                         break;
@@ -741,9 +716,8 @@ static int parse_argv(int argc, char *argv[]) {
                                 return -EINVAL;
                         }
 
-                        free(arg_locale_messages);
-                        arg_locale_messages = strdup(optarg);
-                        if (!arg_locale_messages)
+                        r = free_and_strdup(&arg_locale_messages, optarg);
+                        if (r < 0)
                                 return log_oom();
 
                         break;
@@ -754,24 +728,20 @@ static int parse_argv(int argc, char *argv[]) {
                                 return -EINVAL;
                         }
 
-                        free(arg_timezone);
-                        arg_timezone = strdup(optarg);
-                        if (!arg_timezone)
+                        r = free_and_strdup(&arg_timezone, optarg);
+                        if (r < 0)
                                 return log_oom();
 
                         break;
 
                 case ARG_ROOT_PASSWORD:
-                        free(arg_root_password);
-                        arg_root_password = strdup(optarg);
-                        if (!arg_root_password)
+                        r = free_and_strdup(&arg_root_password, optarg);
+                        if (r < 0)
                                 return log_oom();
-
                         break;
 
                 case ARG_ROOT_PASSWORD_FILE:
-                        free(arg_root_password);
-                        arg_root_password  = NULL;
+                        arg_root_password = mfree(arg_root_password);
 
                         r = read_one_line_file(optarg, &arg_root_password);
                         if (r < 0)
@@ -780,14 +750,14 @@ static int parse_argv(int argc, char *argv[]) {
                         break;
 
                 case ARG_HOSTNAME:
-                        if (!hostname_is_valid(optarg)) {
+                        if (!hostname_is_valid(optarg, true)) {
                                 log_error("Host name %s is not valid.", optarg);
                                 return -EINVAL;
                         }
 
-                        free(arg_hostname);
-                        arg_hostname = strdup(optarg);
-                        if (!arg_hostname)
+                        hostname_cleanup(optarg);
+                        r = free_and_strdup(&arg_hostname, optarg);
+                        if (r < 0)
                                 return log_oom();
 
                         break;
@@ -893,7 +863,7 @@ finish:
         free(arg_locale_messages);
         free(arg_timezone);
         free(arg_hostname);
-        clear_string(arg_root_password);
+        string_erase(arg_root_password);
         free(arg_root_password);
 
         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;