diff options
Diffstat (limited to 'include/ttyutils.h')
| -rw-r--r-- | include/ttyutils.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/ttyutils.h b/include/ttyutils.h index 3ed788359..021156d3e 100644 --- a/include/ttyutils.h +++ b/include/ttyutils.h @@ -14,6 +14,22 @@ #include <sys/ioctl.h> #endif +/* Some shorthands for control characters. */ +#define CTL(x) ((x) ^ 0100) /* Assumes ASCII dialect */ +#define CR CTL('M') /* carriage return */ +#define NL CTL('J') /* line feed */ +#define BS CTL('H') /* back space */ +#define DEL CTL('?') /* delete */ + +/* Defaults for line-editing etc. characters; you may want to change these. */ +#define DEF_ERASE DEL /* default erase character */ +#define DEF_INTR CTL('C') /* default interrupt character */ +#define DEF_QUIT CTL('\\') /* default quit char */ +#define DEF_KILL CTL('U') /* default kill char */ +#define DEF_EOF CTL('D') /* default EOF char */ +#define DEF_EOL 0 +#define DEF_SWITCH 0 /* default switch char */ + /* Storage for things detected while the login name was read. */ struct chardata { int erase; /* erase character */ @@ -23,6 +39,14 @@ struct chardata { int capslock; /* upper case without lower case */ }; +#define INIT_CHARDATA(ptr) do { \ + (ptr)->erase = DEF_ERASE; \ + (ptr)->kill = DEF_KILL; \ + (ptr)->eol = CTRL('r'); \ + (ptr)->parity = 0; \ + (ptr)->capslock = 0; \ + } while (0) + extern int get_terminal_width(void); extern int get_terminal_name(const char **path, const char **name, const char **number); |