Make termios options process-wise instead of global. Write ps2 drivers, but keep translation between scancode set 2/3 to set 1 enabled.

libc/inc/bits/termios-struct.h

@@ -24,7 +24,7 @@ typedef struct termios {
     cc_t c_cc[NCCS];  ///< control characters
     speed_t c_ispeed; ///< input speed
     speed_t c_ospeed; ///< output speed
-} termios;
+} termios_t;
 
 /// @brief These flags generally control higher-level aspects of input processing than the input
 /// modes flags described in Input Modes, such as echoing, signals, and the choice of canonical

libc/inc/ctype.h

@@ -15,6 +15,11 @@ int isdigit(int c);
 /// @return 1 on success, 0 otherwise.
 int isalpha(int c);
 
+/// @brief Check if the given value is a control character.
+/// @param c The input character.
+/// @return 1 on success, 0 otherwise.
+int iscntrl(int c);
+
 /// @brief Check if the given value is either a letter or a digit.
 /// @param c The input character.
 /// @return 1 on success, 0 otherwise.

libc/inc/stdio.h

@@ -22,6 +22,7 @@
 #define SEEK_CUR 1 ///< The file offset is set to its current location plus offset bytes.
 #define SEEK_END 2 ///< The file offset is set to the size of the file plus offset bytes.
 
+#ifndef __KERNEL__
 /// @brief Writes the given character to the standard output (stdout).
 /// @param character The character to send to stdout.
 void putchar(int character);
@@ -40,7 +41,6 @@ int getchar();
 /// @return The string received from standard input.
 char *gets(char *str);
 
-#ifndef __KERNEL__
 /// @brief Same as getchar but reads from the given file descriptor.
 /// @param fd The file descriptor from which it reads.
 /// @return The read character.
@@ -107,7 +107,6 @@ int vsprintf(char *str, const char *fmt, va_list args);
 /// @return On success, the function returns the number of items of the
 ///         argument list successfully filled. EOF otherwise.
 int scanf(const char *fmt, ...);
-#endif
 
 /// @brief Read formatted data from string.
 /// @param str String processed as source to retrieve the data.
@@ -117,7 +116,6 @@ int scanf(const char *fmt, ...);
 ///         argument list successfully filled. EOF otherwise.
 int sscanf(const char *str, const char *fmt, ...);
 
-#ifndef __KERNEL__
 /// @brief The same as sscanf but the source is a file.
 /// @param fd  The file descriptor associated with the file.
 /// @param fmt  Format string, following the same specifications as printf.

libc/inc/termios.h

@@ -11,11 +11,11 @@
 /// @param fd
 /// @param termios_p
 /// @return
-extern int tcgetattr(int fd, termios *termios_p);
+extern int tcgetattr(int fd, termios_t *termios_p);
 
 /// @brief Set the state of FD to *TERMIOS_P.
 /// @param fd
 /// @param optional_actions
 /// @param termios_p
 /// @return
-extern int tcsetattr(int fd, int optional_actions, const termios *termios_p);
+extern int tcsetattr(int fd, int optional_actions, const termios_t *termios_p);

libc/src/ctype.c

@@ -18,6 +18,11 @@ int isalpha(int c)
     return ((c >= 65 && c <= 90) || (c >= 97 && c <= 122));
 }
 
+int iscntrl(int c)
+{
+    return ((c >= 0x00 && c <= 0x1F) || (c == 0x7F));
+}
+
 int isalnum(int c)
 {
     return (isalpha(c) || isdigit(c));

libc/src/termios.c

@@ -8,7 +8,7 @@
 #include "sys/errno.h"
 #include "bits/ioctls.h"
 
-int tcgetattr(int fd, termios *termios_p)
+int tcgetattr(int fd, termios_t *termios_p)
 {
     int retval;
     __asm__ volatile("int $0x80"
@@ -22,7 +22,7 @@ int tcgetattr(int fd, termios *termios_p)
     return retval;
 }
 
-int tcsetattr(int fd, int optional_actions, const termios *termios_p)
+int tcsetattr(int fd, int optional_actions, const termios_t *termios_p)
 {
     int retval;
     __asm__ volatile("int $0x80"