diff options
| -rw-r--r-- | src/core/parseopt.c | 15 | ||||
| -rw-r--r-- | src/include/ctype.h | 11 | ||||
| -rw-r--r-- | src/include/ipxe/keys.h | 8 |
3 files changed, 31 insertions, 3 deletions
diff --git a/src/core/parseopt.c b/src/core/parseopt.c index 1dbfc7a..cd3b310 100644 --- a/src/core/parseopt.c +++ b/src/core/parseopt.c @@ -28,6 +28,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <stdlib.h> #include <stdio.h> #include <string.h> +#include <ctype.h> #include <errno.h> #include <getopt.h> #include <ipxe/netdevice.h> @@ -35,6 +36,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <ipxe/settings.h> #include <ipxe/params.h> #include <ipxe/timer.h> +#include <ipxe/keys.h> #include <ipxe/parseopt.h> #include <config/branding.h> @@ -213,6 +215,7 @@ int parse_flag ( char *text __unused, int *flag ) { * @ret rc Return status code */ int parse_key ( char *text, unsigned int *key ) { + int rc; /* Interpret single characters as being a literal key character */ if ( text[0] && ! text[1] ) { @@ -221,7 +224,17 @@ int parse_key ( char *text, unsigned int *key ) { } /* Otherwise, interpret as an integer */ - return parse_integer ( text, key ); + if ( ( rc = parse_integer ( text, key ) ) < 0 ) + return rc; + + /* For backwards compatibility with existing scripts, treat + * integers between the ASCII range and special key range as + * being relative special key values. + */ + if ( ( ! isascii ( *key ) ) && ( *key < KEY_MIN ) ) + *key += KEY_MIN; + + return 0; } /** diff --git a/src/include/ctype.h b/src/include/ctype.h index 0d79ecd..6fefd5d 100644 --- a/src/include/ctype.h +++ b/src/include/ctype.h @@ -10,6 +10,17 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); /** + * Check if character is ASCII + * + * @v character Character + * @ret is_ascii Character is an ASCII character + */ +static inline int isascii ( int character ) { + + return ( character <= '\x7f' ); +} + +/** * Check if character is a decimal digit * * @v character ASCII character diff --git a/src/include/ipxe/keys.h b/src/include/ipxe/keys.h index 2335691..49e65fa 100644 --- a/src/include/ipxe/keys.h +++ b/src/include/ipxe/keys.h @@ -54,6 +54,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * The names are chosen to match those used by curses. The values are * chosen to facilitate easy conversion from a received ANSI escape * sequence to a KEY_XXX constant. + * + * Note that the values are exposed to iPXE commands via parse_key() + * and therefore may not be changed without breaking existing scripts. */ /** @@ -79,7 +82,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * @v terminator ANSI escape sequence terminating character * @ret key Key value */ -#define KEY_ANSI( n, terminator ) ( KEY_MIN + ( (n) << 8 ) + (terminator) ) +#define KEY_ANSI( n, terminator ) \ + ( KEY_MIN + ( ( (n) + 1 ) << 8 ) + (terminator) ) /** * Extract ANSI escape sequence numeric portion @@ -87,7 +91,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * @v key Key value (or relative key value) * @ret n ANSI escape sequence numeric portion, or 0 for none */ -#define KEY_ANSI_N( key ) ( ( (key) >> 8 ) & 0xff ) +#define KEY_ANSI_N( key ) ( ( ( (key) >> 8 ) & 0xff ) - 1 ) /** * Extract ANSI escape sequence terminating character |