diff options
author | H. Peter Anvin <hpa@linux.intel.com> | 2012-04-17 11:25:53 -0700 |
---|---|---|
committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-04-17 11:25:53 -0700 |
commit | d5e02fb16a11bfdbce1e90a39e6cb5f2ad925389 (patch) | |
tree | 8b5bd7a18b18a586c60893ee5bfd2db952c903e5 | |
parent | 429a41b4d33e8c34638de56a4a23e67337f9f34a (diff) | |
download | syslinux-d5e02fb16a11bfdbce1e90a39e6cb5f2ad925389.tar.gz syslinux-d5e02fb16a11bfdbce1e90a39e6cb5f2ad925389.tar.xz syslinux-d5e02fb16a11bfdbce1e90a39e6cb5f2ad925389.zip |
get_key: Valid key values are positive
Make sure we return positive values for valid keystrokes.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
-rw-r--r-- | com32/elflink/ldlinux/get_key.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/com32/elflink/ldlinux/get_key.c b/com32/elflink/ldlinux/get_key.c index 5841d022..0be06b98 100644 --- a/com32/elflink/ldlinux/get_key.c +++ b/com32/elflink/ldlinux/get_key.c @@ -167,7 +167,7 @@ int get_key(FILE * f, clock_t timeout) clock_t lateness = times(NULL) - start; if (nc && lateness > 1 + KEY_TIMEOUT) { if (nc == 1) - return buffer[0]; /* timeout in sequence */ + return (unsigned char)buffer[0]; /* timeout */ else if (timeout && lateness > timeout) return KEY_NONE; } else if (!nc && timeout && lateness > timeout) @@ -194,5 +194,5 @@ int get_key(FILE * f, clock_t timeout) /* We got an unrecognized sequence; return the first character */ /* We really should remember this and return subsequent characters later */ - return buffer[0]; + return (unsigned char)buffer[0]; } |