first round of ASan (+ compiler warning fixes)

Author: nift4

CMakeLists.txt

@@ -58,4 +58,6 @@ target_include_directories(droidboot_gui PUBLIC
 		droidboot_platforms/libc-hack/lk
 		include
 		.
-)
+)
+target_compile_options(droidboot_gui PUBLIC -fsanitize=address -fsanitize-recover=address -fno-omit-frame-pointer)
+target_link_options(droidboot_gui PUBLIC -fsanitize=address -fsanitize-recover=address)

common/droidboot_stdfunc.c

@@ -6,7 +6,7 @@ static inline bool _is_digit(char ch)
 }
 
 // internal ASCII string to unsigned int conversion
-unsigned int droidboot_atoi(char* str)
+unsigned int droidboot_atoi(const char* str)
 {
     // Initialize result
     int res = 0;

config_parser/droidboot_config.c

@@ -50,7 +50,7 @@ struct global_config {
 };
 
 int config_parse_option(char **_dest, const char *option, const char *buffer) {
-    char *option_whitespace = malloc(strlen(option)+strlen(" "));
+    char *option_whitespace = malloc(strlen(option)+strlen(" ")+1);
     strcpy(option_whitespace, option);
     strcat(option_whitespace, " ");
 	char *temp = strstr(buffer, option_whitespace);
@@ -284,6 +284,7 @@ int parse_global_config(struct global_config *global_config) {
 	ext4_fread(&fp, buf, fsize, NULL);
 
 	ext4_fclose(&fp);
+	buf[fsize] = '\0';
 
 	ret = config_parse_option(&global_config->default_entry_title, "default", (const char *)buf);
 	if(ret < 0) {

dualboot_gui/dualboot_menu.c

@@ -34,15 +34,15 @@ static void event_handler(lv_event_t * e)
     droidboot_log(DROIDBOOT_LOG_TRACE, "dualboot menu: got event\n");
     lv_event_code_t code = lv_event_get_code(e);
     lv_obj_t * obj = lv_event_get_target(e);
-    int index = lv_obj_get_child_id(obj);
+    uint32_t index = lv_obj_get_child_id(obj);
     if(code == LV_EVENT_CLICKED) {
         //lvgl_show_boot_logo();
         // Lets firstly write index to metadata
         ext4_file f;
         int ret = ext4_fopen(&f, "/boot/db/last_index", "wb");
 
         char s[128]=""; 
-        sprintf(s,"%ld", index);
+        sprintf(s,"%u", index);
         ret=ext4_fwrite(&f, s, 128, 0);
         ret=ext4_fclose(&f);
 
@@ -99,7 +99,7 @@ void timeout_handler(lv_timer_t * timer2)
         ret=ext4_fclose(&fp);
 
         droidboot_log(DROIDBOOT_LOG_INFO, "droidboot_menu: last entry is: %s\n", buf);
-        int index = droidboot_atoi(buf);
+        uint index = droidboot_atoi(buf);
 
         if(!strcmp((droidboot_entry_list + index)->kernel, "null"))
         {
@@ -128,8 +128,8 @@ void droidboot_add_dualboot_menu_buttons(lv_obj_t * list1){
         strcat(title, (droidboot_entry_list + i)->title);
         strcat(title, "\n");
 
-        if((droidboot_entry_list + i)->logo!="NULL"){
-            char logo_path[strlen((droidboot_entry_list + i)->logo)+strlen("/boot/"+3)];
+        if((droidboot_entry_list + i)->logo!=NULL){
+            char logo_path[strlen((droidboot_entry_list + i)->logo)+strlen("/boot/")+3];
             strcpy(logo_path, "/boot/");
             strcat(logo_path, (droidboot_entry_list + i)->logo);
             list_btn = lv_list_add_btn(list1, droidboot_load_lvgl_image_from_ext4(logo_path), title);

include/droidboot_stdfunc.h

@@ -1,4 +1,4 @@
 #pragma once
 // internal ASCII string to unsigned int conversion
-unsigned int droidboot_atoi(const char ** str);
+unsigned int droidboot_atoi(const char * str);
 long droidboot_strtol(const char *restrict nptr, char **restrict endptr, int base);