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| author | Patrick Georgi <patrick.georgi@coresystems.de> | 2008-10-23 12:22:24 +0000 |
|---|---|---|
| committer | Patrick Georgi <patrick.georgi@coresystems.de> | 2008-10-23 12:22:24 +0000 |
| commit | c4f294f33f24b92d03e2663b954fd8426925c18b (patch) | |
| tree | f5e23902312541220e22e19ea8d2ee11828720bb /payloads/libpayload | |
| parent | c811a1c6aef38f53fadc4d51b17c56116d2baaac (diff) | |
| download | coreboot-c4f294f33f24b92d03e2663b954fd8426925c18b.tar.xz | |
make escape code handling for serial terminal more robust
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Marc Jones <marc.jones@amd.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3691 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/libpayload')
| -rw-r--r-- | payloads/libpayload/curses/keyboard.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/payloads/libpayload/curses/keyboard.c b/payloads/libpayload/curses/keyboard.c index 45bd4442fe..ead4313a98 100644 --- a/payloads/libpayload/curses/keyboard.c +++ b/payloads/libpayload/curses/keyboard.c @@ -50,21 +50,24 @@ static int _halfdelay = 0; do the cooking in here, but we should probably eventually pass it to dedicated vt100 code */ -static int getkeyseq(char *buffer, int len) +static int getkeyseq(char *buffer, int len, int max) { int i; - for(i = 0; i < 75; i++) { - if (serial_havechar()) - break; - mdelay(1); - } + while (1) { + for(i = 0; i < 75; i++) { + if (serial_havechar()) + break; + mdelay(1); + } - if (i == 75) - return len; + if (i == 75) + return len; - buffer[len++] = serial_getchar(); - return getkeyseq(buffer, len); + buffer[len++] = serial_getchar(); + if (len == max) + return len; + } } static struct { @@ -99,7 +102,7 @@ static struct { static int handle_escape(void) { char buffer[5]; - int len = getkeyseq(buffer, 0); + int len = getkeyseq(buffer, 0, sizeof(buffer)); int i, t; if (len == 0) |