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HAL_Linux: increase size of sysfs_path variables inside LinuxRCOutput's methods

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to avoid stack smashing error
This commit is contained in:
bugobliterator 2014-05-24 17:07:54 +05:30 committed by Andrew Tridgell
parent 85d10e2ce3
commit 18d7438240
1 changed files with 8 additions and 8 deletions
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16
libraries/AP_HAL_Linux/RCOutput.cpp
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@ -90,7 +90,7 @@ void LinuxRCOutput::set_freq(uint32_t chmask, uint16_t freq_hz) //LSB
{
int _fd, ret,i;
unsigned long period_ns=1000000000/(unsigned long)freq_hz;
char period_sysfs_path[20],buffer[15];
char period_sysfs_path[30],buffer[15];
sprintf(buffer,"%lu",(unsigned long)period_ns);
for(i=0;i<12;i++){
@ -113,7 +113,7 @@ uint16_t LinuxRCOutput::get_freq(uint8_t ch)
{
int _fd, ret;
int freq_hz;
char period_sysfs_path[20],buffer[15];
char period_sysfs_path[30],buffer[15];
sprintf(period_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[ch],"/period_ns");
_fd=open(period_sysfs_path,O_RDONLY);
@ -133,7 +133,7 @@ uint16_t LinuxRCOutput::get_freq(uint8_t ch)
void LinuxRCOutput::enable_ch(uint8_t ch)
{
int _fd, ret;
char run_sysfs_path[20],buffer[]="1";
char run_sysfs_path[30],buffer[]="1";
sprintf(run_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[ch],"/run");
_fd=open(run_sysfs_path,O_WRONLY);
@ -150,7 +150,7 @@ void LinuxRCOutput::enable_ch(uint8_t ch)
void LinuxRCOutput::disable_ch(uint8_t ch)
{
int _fd, ret;
char run_sysfs_path[20],buffer[]="0";
char run_sysfs_path[30],buffer[]="0";
sprintf(run_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[ch],"/run");
_fd=open(run_sysfs_path,O_WRONLY);
@ -167,7 +167,7 @@ void LinuxRCOutput::disable_ch(uint8_t ch)
void LinuxRCOutput::write(uint8_t ch, uint16_t period_us)
{
int _fd, ret;
char duty_sysfs_path[20],buffer[15];
char duty_sysfs_path[30],buffer[15];
sprintf(buffer,"%lu",(unsigned long)period_us*1000);
sprintf(duty_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[ch],"/duty_ns");
@ -185,7 +185,7 @@ void LinuxRCOutput::write(uint8_t ch, uint16_t period_us)
void LinuxRCOutput::write(uint8_t ch, uint16_t* period_us, uint8_t len)
{
int _fd, ret,i;
char duty_sysfs_path[25],buffer[15];
char duty_sysfs_path[30],buffer[15];
for(i=0;i<len;i++){
sprintf(buffer,"%lu",(unsigned long)period_us[i]*1000);
sprintf(duty_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[ch+i],"/duty_ns");
@ -205,7 +205,7 @@ void LinuxRCOutput::write(uint8_t ch, uint16_t* period_us, uint8_t len)
uint16_t LinuxRCOutput::read(uint8_t ch) {
int _fd, ret;
char duty_sysfs_path[25],buffer[15];
char duty_sysfs_path[30],buffer[15];
sprintf(duty_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[ch],"/duty_ns");
@ -226,7 +226,7 @@ uint16_t LinuxRCOutput::read(uint8_t ch) {
void LinuxRCOutput::read(uint16_t* period_us, uint8_t len)
{
int _fd, ret ,i;
char duty_sysfs_path[25],buffer[15];
char duty_sysfs_path[30],buffer[15];
for(i=0;i<len;i++){
sprintf(duty_sysfs_path,"%s/pwm%d%s",PWM_DIR,chan_pru_map[i],"/duty_ns");