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linux: Minor code cleanups

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This commit is contained in:
Wladimir J. van der Laan 2020-03-06 21:17:12 +00:00
parent a2d4fc3445
commit 185a977ff4
1 changed files with 4 additions and 5 deletions
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9
linux/esptun.c
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@ -80,7 +80,7 @@ static __attribute__ ((format (printf, 2, 3))) void logprintf(int cls, const cha
static void debug_response(const uint8_t *esp_buffer, size_t n) { static void debug_response(const uint8_t *esp_buffer, size_t n) {
static const char hexchars[16] = "0123456789abcdef"; static const char hexchars[16] = "0123456789abcdef";
if (debug) { if (debug) {
for(size_t i = 0; i < n; ++i) { for (size_t i = 0; i < n; ++i) {
if (esp_buffer[i] < 32 || esp_buffer[i] >= 127 || esp_buffer[i] == '\\') { if (esp_buffer[i] < 32 || esp_buffer[i] >= 127 || esp_buffer[i] == '\\') {
fputc('\\', stderr); fputc('\\', stderr);
fputc('x', stderr); fputc('x', stderr);
@ -117,7 +117,7 @@ int tun_alloc(char *dev, int flags)
{ {
struct ifreq ifr; struct ifreq ifr;
int fd, err; int fd, err;
const char *clonedev = "/dev/net/tun"; static const char *clonedev = "/dev/net/tun";
if ((fd = open(clonedev, O_RDWR)) < 0) { if ((fd = open(clonedev, O_RDWR)) < 0) {
my_err("Opening /dev/net/tun (%s)", strerror(errno)); my_err("Opening /dev/net/tun (%s)", strerror(errno));
@ -300,8 +300,7 @@ static bool is_prefix(const uint8_t *esp_buffer, size_t len, const uint8_t *pref
if (len < prefix_len) { if (len < prefix_len) {
return false; return false;
} }
for (size_t i = 0; i < prefix_len; ++i) for (size_t i = 0; i < prefix_len; ++i) {
{
if (esp_buffer[i] != prefix[i]) { if (esp_buffer[i] != prefix[i]) {
return false; return false;
} }
@ -530,7 +529,7 @@ int main(int argc, char **argv)
tap2net++; tap2net++;
esp_tx_packet(esp_fd, tap_buffer, nread); esp_tx_packet(esp_fd, tap_buffer, nread);
} }
} while (1); } while (true);
return 0; return 0;
} }