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Code Issues Releases Activity

Added a bunch of sanity checking

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This commit is contained in:
fordsfords
2016-06-26 14:28:06 -05:00
parent 5ad81066b2
commit 093922567a
5 changed files with 95 additions and 70 deletions
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28
source/event_gpio.c
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@ -84,14 +84,14 @@ int epfd = -1;
int gpio_export(unsigned int gpio)
{
int fd, len;
char str_gpio[10];
char str_gpio[16];
struct gpio_exp *new_gpio, *g;
if ((fd = open("/sys/class/gpio/export", O_WRONLY)) < 0)
{
return -1;
}
len = snprintf(str_gpio, sizeof(str_gpio), "%d", gpio);
len = snprintf(str_gpio, sizeof(str_gpio), "%d", gpio); BUF2SMALL(str_gpio);
ssize_t s = write(fd, str_gpio, len); ASSRT(s == len);
close(fd);
@ -181,7 +181,7 @@ int open_value_file(unsigned int gpio)
char filename[MAX_FILENAME];
// create file descriptor of value file
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/value", gpio);
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/value", gpio); BUF2SMALL(filename);
if ((fd = open(filename, O_RDONLY | O_NONBLOCK)) < 0)
return -1;
@ -192,7 +192,7 @@ int open_value_file(unsigned int gpio)
int gpio_unexport(unsigned int gpio)
{
int fd, len;
char str_gpio[10];
char str_gpio[16];
struct gpio_exp *g, *temp, *prev_g = NULL;
close_value_fd(gpio);
@ -200,7 +200,7 @@ int gpio_unexport(unsigned int gpio)
if ((fd = open("/sys/class/gpio/unexport", O_WRONLY)) < 0)
return -1;
len = snprintf(str_gpio, sizeof(str_gpio), "%d", gpio);
len = snprintf(str_gpio, sizeof(str_gpio), "%d", gpio); BUF2SMALL(str_gpio);
ssize_t s = write(fd, str_gpio, len); ASSRT(s == len);
close(fd);
@ -228,10 +228,10 @@ int gpio_unexport(unsigned int gpio)
int gpio_set_direction(unsigned int gpio, unsigned int in_flag)
{
int fd;
char filename[40];
char direction[10] = { 0 };
char filename[MAX_FILENAME];
char direction[16] = { 0 };
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/direction", gpio);
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/direction", gpio); BUF2SMALL(filename);
if ((fd = open(filename, O_WRONLY)) < 0)
return -1;
@ -250,9 +250,9 @@ int gpio_get_direction(unsigned int gpio, unsigned int *value)
{
int fd;
char direction[4] = { 0 };
char filename[40];
char filename[MAX_FILENAME];
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/direction", gpio);
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/direction", gpio); BUF2SMALL(filename);
if ((fd = open(filename, O_RDONLY | O_NONBLOCK)) < 0)
return -1;
@ -272,9 +272,9 @@ int gpio_set_value(unsigned int gpio, unsigned int value)
{
int fd;
char filename[MAX_FILENAME];
char vstr[10];
char vstr[16];
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/value", gpio);
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/value", gpio); BUF2SMALL(filename);
if ((fd = open(filename, O_WRONLY)) < 0)
return -1;
@ -316,9 +316,9 @@ int gpio_get_value(unsigned int gpio, unsigned int *value)
int gpio_set_edge(unsigned int gpio, unsigned int edge)
{
int fd;
char filename[40];
char filename[MAX_FILENAME];
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/edge", gpio);
snprintf(filename, sizeof(filename), "/sys/class/gpio/gpio%d/edge", gpio); BUF2SMALL(filename);
if ((fd = open(filename, O_WRONLY)) < 0)
return -1;