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| author | John Schmoller <jschmoller@xes-inc.com> | 2010-03-12 09:49:23 -0600 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-03-21 22:44:58 +0100 |
| commit | 6475b9f91bd33bfd38418469cabdcfc0fefbd848 (patch) | |
| tree | dc8baee5e589fac670329f570a91fec52dd9c38f | |
| parent | e070a56c777f1fd05950e1bc63483c19decd6f78 (diff) | |
| download | u-boot-imx-6475b9f91bd33bfd38418469cabdcfc0fefbd848.zip u-boot-imx-6475b9f91bd33bfd38418469cabdcfc0fefbd848.tar.gz u-boot-imx-6475b9f91bd33bfd38418469cabdcfc0fefbd848.tar.bz2 | |
console: Fix console buffer overrun
When CONFIG_SYS_CBSIZE equals MAX_CMDBUF_SIZE, a command string of
maximum length will overwrite part of the history buffer, causing the
board to die. Expand the console_buffer and hist_lines buffer by one
character each to hold the missing NULL char.
Signed-off-by: John Schmoller <jschmoller@xes-inc.com>
| -rw-r--r-- | common/main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/common/main.c b/common/main.c index c860b0b..6fec200 100644 --- a/common/main.c +++ b/common/main.c @@ -68,7 +68,7 @@ static int abortboot(int); #undef DEBUG_PARSER -char console_buffer[CONFIG_SYS_CBSIZE]; /* console I/O buffer */ +char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */ static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); static char erase_seq[] = "\b \b"; /* erase sequence */ @@ -546,7 +546,7 @@ static int hist_cur = -1; unsigned hist_num = 0; char* hist_list[HIST_MAX]; -char hist_lines[HIST_MAX][HIST_SIZE]; +char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */ #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1) |