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From 2ccf2637e7b3caa147962976178bb347fa227946 Mon Sep 17 00:00:00 2001
From: Jan Janssen <medhefgo@web.de>
Date: Tue, 22 Nov 2022 16:03:03 +0100
Subject: [PATCH] boot: Use xstr8_to_16

(cherry picked from commit aee515bbb58496272a6d975858aa26a355c4fb90)

Related: #2138081
---
 src/boot/efi/boot.c    | 30 +++++++++++++++---------------
 src/boot/efi/linux.c   |  2 +-
 src/boot/efi/measure.c |  2 +-
 src/boot/efi/util.c    | 30 ------------------------------
 src/boot/efi/util.h    |  1 -
 5 files changed, 17 insertions(+), 48 deletions(-)

diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index db6ca97df4..013df67e49 100644
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -1205,7 +1205,7 @@ static void config_defaults_load_from_file(Config *config, char *content) {
                                 continue;
                         }
                         free(config->entry_default_config);
-                        config->entry_default_config = xstra_to_str(value);
+                        config->entry_default_config = xstr8_to_16(value);
                         continue;
                 }
 
@@ -1440,25 +1440,25 @@ static void config_entry_add_type1(
         while ((line = line_get_key_value(content, " \t", &pos, &key, &value))) {
                 if (streq8(key, "title")) {
                         free(entry->title);
-                        entry->title = xstra_to_str(value);
+                        entry->title = xstr8_to_16(value);
                         continue;
                 }
 
                 if (streq8(key, "sort-key")) {
                         free(entry->sort_key);
-                        entry->sort_key = xstra_to_str(value);
+                        entry->sort_key = xstr8_to_16(value);
                         continue;
                 }
 
                 if (streq8(key, "version")) {
                         free(entry->version);
-                        entry->version = xstra_to_str(value);
+                        entry->version = xstr8_to_16(value);
                         continue;
                 }
 
                 if (streq8(key, "machine-id")) {
                         free(entry->machine_id);
-                        entry->machine_id = xstra_to_str(value);
+                        entry->machine_id = xstr8_to_16(value);
                         continue;
                 }
 
@@ -1511,7 +1511,7 @@ static void config_entry_add_type1(
                 if (streq8(key, "options")) {
                         _cleanup_free_ char16_t *new = NULL;
 
-                        new = xstra_to_str(value);
+                        new = xstr8_to_16(value);
                         if (entry->options) {
                                 char16_t *s = xpool_print(L"%s %s", entry->options, new);
                                 free(entry->options);
@@ -2157,49 +2157,49 @@ static void config_entry_add_unified(
                 while ((line = line_get_key_value(content, "=", &pos, &key, &value))) {
                         if (streq8(key, "PRETTY_NAME")) {
                                 free(os_pretty_name);
-                                os_pretty_name = xstra_to_str(value);
+                                os_pretty_name = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "IMAGE_ID")) {
                                 free(os_image_id);
-                                os_image_id = xstra_to_str(value);
+                                os_image_id = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "NAME")) {
                                 free(os_name);
-                                os_name = xstra_to_str(value);
+                                os_name = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "ID")) {
                                 free(os_id);
-                                os_id = xstra_to_str(value);
+                                os_id = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "IMAGE_VERSION")) {
                                 free(os_image_version);
-                                os_image_version = xstra_to_str(value);
+                                os_image_version = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "VERSION")) {
                                 free(os_version);
-                                os_version = xstra_to_str(value);
+                                os_version = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "VERSION_ID")) {
                                 free(os_version_id);
-                                os_version_id = xstra_to_str(value);
+                                os_version_id = xstr8_to_16(value);
                                 continue;
                         }
 
                         if (streq8(key, "BUILD_ID")) {
                                 free(os_build_id);
-                                os_build_id = xstra_to_str(value);
+                                os_build_id = xstr8_to_16(value);
                                 continue;
                         }
                 }
@@ -2248,7 +2248,7 @@ static void config_entry_add_unified(
                         if (content[szs[SECTION_CMDLINE] - 1] == '\n')
                                 content[szs[SECTION_CMDLINE] - 1] = '\0';
 
-                        entry->options = xstra_to_str(content);
+                        entry->options = xstr8_to_16(content);
                 }
         }
 }
diff --git a/src/boot/efi/linux.c b/src/boot/efi/linux.c
index dd7eb48c8c..668510fca3 100644
--- a/src/boot/efi/linux.c
+++ b/src/boot/efi/linux.c
@@ -133,7 +133,7 @@ EFI_STATUS linux_exec(
                 return log_error_status_stall(err, u"Error getting kernel loaded image protocol: %r", err);
 
         if (cmdline) {
-                loaded_image->LoadOptions = xstra_to_str(cmdline);
+                loaded_image->LoadOptions = xstrn8_to_16(cmdline, cmdline_len);
                 loaded_image->LoadOptionsSize = strsize16(loaded_image->LoadOptions);
         }
 
diff --git a/src/boot/efi/measure.c b/src/boot/efi/measure.c
index 9a16920787..6da07d917e 100644
--- a/src/boot/efi/measure.c
+++ b/src/boot/efi/measure.c
@@ -187,7 +187,7 @@ EFI_STATUS tpm_log_event_ascii(uint32_t pcrindex, EFI_PHYSICAL_ADDRESS buffer, U
         _cleanup_free_ char16_t *c = NULL;
 
         if (description)
-                c = xstra_to_str(description);
+                c = xstr8_to_16(description);
 
         return tpm_log_event(pcrindex, buffer, buffer_size, c, ret_measured);
 }
diff --git a/src/boot/efi/util.c b/src/boot/efi/util.c
index 3eba2ade07..b727d6de7e 100644
--- a/src/boot/efi/util.c
+++ b/src/boot/efi/util.c
@@ -303,36 +303,6 @@ static int utf8_to_16(const char *stra, char16_t *c) {
         return len;
 }
 
-char16_t *xstra_to_str(const char *stra) {
-        UINTN strlen;
-        UINTN len;
-        UINTN i;
-        char16_t *str;
-
-        assert(stra);
-
-        len = strlen8(stra);
-        str = xnew(char16_t, len + 1);
-
-        strlen = 0;
-        i = 0;
-        while (i < len) {
-                int utf8len;
-
-                utf8len = utf8_to_16(stra + i, str + strlen);
-                if (utf8len <= 0) {
-                        /* invalid utf8 sequence, skip the garbage */
-                        i++;
-                        continue;
-                }
-
-                strlen++;
-                i += utf8len;
-        }
-        str[strlen] = '\0';
-        return str;
-}
-
 char16_t *xstra_to_path(const char *stra) {
         char16_t *str;
         UINTN strlen;
diff --git a/src/boot/efi/util.h b/src/boot/efi/util.h
index 994cf52ad6..d78feac39c 100644
--- a/src/boot/efi/util.h
+++ b/src/boot/efi/util.h
@@ -113,7 +113,6 @@ EFI_STATUS efivar_get_uint64_le(const EFI_GUID *vendor, const char16_t *name, ui
 EFI_STATUS efivar_get_boolean_u8(const EFI_GUID *vendor, const char16_t *name, bool *ret);
 
 char16_t *xstra_to_path(const char *stra);
-char16_t *xstra_to_str(const char *stra);
 
 EFI_STATUS file_read(EFI_FILE *dir, const char16_t *name, UINTN off, UINTN size, char **content, UINTN *content_size);