Fix kernel warnings and memory-safety issues

source/includes/acpi.h

@@ -14,7 +14,7 @@
 #include <stdint.h>
 #include <stddef.h>
 
-extern char* oem_name;
+extern const char* oem_name;
 
 extern bool virtualized;
 
@@ -43,7 +43,7 @@ struct acpi_gas {
  * @brief Initializes and iterates through all ACPI tables
  * 
  */
-void acpi_init();
+void acpi_init(void);
 
 /**
  * @brief Searches for an STD Header in the ACPI Tables

source/includes/ahci.h

@@ -92,7 +92,7 @@ typedef struct {
     void*              fis;
 } ahci_port_mem_t;
 
-static ahci_port_mem_t port_mem[32];
+extern ahci_port_mem_t port_mem[32];
 
 
 /**
@@ -281,5 +281,7 @@ general_partition_t* search_general_partition(cstring partition_name);
 
 mount_entry_t* add_mount(const char* mount_point, const char* part_name, partition_fs_type_t type, void* fs_ptr);
 mount_entry_t* find_mount_by_point(const char* mount_point);
+int remove_mount(const char* mount_point);
+void list_all_mounts(void);
 
 #endif // AHCI_H

source/includes/algorithms/hashing.h

@@ -19,7 +19,7 @@
  * @brief Verifies if the hash is working (not really initializing anything)
  * 
  */
-void init_hashing();
+void init_hashing(void);
 
 /**
  * @brief The function to hash an string (const char *)

source/includes/cc-asm.h

@@ -14,29 +14,29 @@
  * @brief Halt and catch fire function.
  * 
  */
-void hcf();
+void hcf(void);
 
 /**
  * @brief The clear interrupts command for all architectures.
  * 
  */
-void clear_interrupts();
+void clear_interrupts(void);
 
 /**
  * @brief The set interrupts command for various architectures.
  * 
  */
-void set_interrupts();
+void set_interrupts(void);
 
 /**
  * @brief It uses while loops instead of assembly's halt,
  * Good for Userland
  * 
  */
-void high_level_halt();
+void high_level_halt(void);
 
 /**
  * @brief Halt and catch fire function but doesn't print any text.
  * 
  */
-void hcf2();
+void hcf2(void);

source/includes/cpuid2.h

@@ -21,7 +21,7 @@
  * @param where An integer array to store the result, with at least 4 elements.
  * @return The value of the EAX register after executing CPUID.
  */
-static inline int cpuid_string(int code, int where[4]);
+int cpuid_string(int code, int where[4]);
 
 /**
  * @brief Returns a string representing the CPU type.
@@ -31,7 +31,7 @@ static inline int cpuid_string(int code, int where[4]);
  *
  * @return A constant string representing the CPU type.
  */
-cstring cpu_string();
+cstring cpu_string(void);
 
 /**
  * @brief Executes the CPUID instruction and retrieves values of the specified registers.
@@ -45,38 +45,39 @@ cstring cpu_string();
  * @param ecx Pointer to store the value of ECX register.
  * @param edx Pointer to store the value of EDX register.
  */
-inline void cpuid(int32 reg, int32 *eax, int32 *ebx, int32 *ecx, int32 *edx);
+void cpuid(int32 reg, int32 *eax, int32 *ebx, int32 *ecx, int32 *edx);
 
 /**
  * @brief Retrieve the CPU vendor string.
  * 
  * @return The CPU vendor string.
  */
-cstring get_cpu_vendor();
+cstring get_cpu_vendor(void);
 
 /**
  * @brief Retrieve the CPU name.
  * 
  * @return The CPU name.
  */
-cstring get_cpu_name();
+cstring get_cpu_name(void);
 
 /**
  * @brief Print CPU information, including the vendor and CPU string.
  */
-void print_cpu_info();
+void print_cpu_info(void);
 
 /**
  * @brief Retrieve and print L1 cache information.
  */
-void print_L1_cache_info();
+void print_L1_cache_info(void);
 
 /**
  * @brief Retrieve and print L2 cache information.
  */
-void print_L2_cache_info();
+void print_L2_cache_info(void);
 
 /**
  * @brief Retrieve and print L3 cache information.
  */
-void print_L3_cache_info();
+void print_L3_cache_info(void);
+bool is_kvm_supported(void);

source/includes/drivers/pc-speaker.h

@@ -22,7 +22,7 @@ void play_sound(int32 frequency);
  * @brief Mutes the PC Speaker temporaily 
  * 
  */
-void mute();
+void mute(void);
 
 /**
  * @brief Does a BEEP in PC Speaker

source/includes/drivers/rtl8139.h

@@ -56,7 +56,7 @@ extern struct rtl8139* RTL8139;
  * 
  * @param nic 
  */
-void read_mac_address();
+void read_mac_address(void);
 
 /**
  * @brief Initialize RTL8139 NIC

source/includes/drivers/serial.h

@@ -37,7 +37,7 @@ extern int select;
  * @brief Finds the working serial COM port in the OS ranging from 1-8
  * 
  */
-void probe_serial();
+void probe_serial(void);
 
 /**
  * @brief Initialize serial at a specific port
@@ -52,7 +52,7 @@ int init_serial(int port);
  * 
  * @return int status code
  */
-int transmit_status();
+int transmit_status(void);
 
 /**
  * @brief Put a character to a serial COM

source/includes/filesystems/fat16.h

@@ -80,7 +80,7 @@ typedef struct {
     uint16_t cluster;
 } fat16_file_t;
 
-// partition_fs_type_t detect_fat_type_enum(const int8* buf);
+partition_fs_type_t detect_fat_type_enum(const int8* buf);
 int fat16_mount(int portno, uint32_t partition_lba, fat16_fs_t* fs) ;
 uint16_t fat16_read_fat_fs(fat16_fs_t* fs, uint16_t cluster);
 int fat16_list_root(fat16_fs_t* fs);

source/includes/filesystems/vfs.h

@@ -132,7 +132,7 @@ int vfs_unlink(const char* path);
  * @brief Get the current working directory
  * @return Pointer to CWD string
  */
-const char* vfs_getcwd();
+const char* vfs_getcwd(void);
 
 const char* vfs_basename(const char* path);
 int vfs_normalize_path(const char* in, char* out, size_t out_sz);

source/includes/gdt.h

@@ -41,5 +41,5 @@ extern struct gdt_ptr gdtp;
  * @brief Set the up GDT for the entire OS.
  * 
  */
-void setup_gdt();
+void setup_gdt(void);
 #endif

source/includes/graphics.h

@@ -35,7 +35,6 @@
 // #define orange_color "\x1b[38;5;172m"
 
 
-extern string last_filename;
 extern string last_filename; // for warn, info, err, done
 extern string last_print_file;
 extern string last_print_func;
@@ -145,6 +144,7 @@ void printf_internal(cstring file, cstring func, int64 line, cstring format, ...
  * @param ... 
  */
 void printfnoln_internal(cstring file, cstring func, int64 line, cstring format, ...);
+void eprintf_internal(cstring file, cstring func, int64 line, cstring format, ...);
 
 /**
  * @brief Core printf implementation used internally by both printf_internal and printfnoln_internal.
@@ -166,7 +166,7 @@ void printfnoln_internal(cstring file, cstring func, int64 line, cstring format,
  */
 void vprintf_internal(stream_t stream, cstring file, cstring func, int64 line, bool newline, cstring format, va_list argp);
 
-/**
+/*
  * @brief Formats a string into a buffer using a va_list.
  *
  * @param buf  destination buffer.