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Code cleanup

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This commit is contained in:
angt
2015-12-18 11:37:55 +01:00
parent c59def90fb
commit 1ab854f058
1 changed files with 40 additions and 39 deletions
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79
src/tun.c
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@@ -25,45 +25,8 @@
#define GT_BSD_TUN
#endif
#ifdef __linux__
static int tun_create_by_name (char *name, size_t size, char *dev_name, int mq)
{
int fd = open("/dev/net/tun", O_RDWR);
#ifdef __APPLE__
if (fd==-1)
return -1;
struct ifreq ifr = {
.ifr_flags = IFF_TUN|IFF_NO_PI,
};
if (mq) {
#ifdef IFF_MULTI_QUEUE
ifr.ifr_flags |= IFF_MULTI_QUEUE;
#endif
}
str_cpy(ifr.ifr_name, dev_name, IFNAMSIZ-1);
if (ioctl(fd, TUNSETIFF, &ifr)) {
close(fd);
return -1;
}
str_cpy(name, ifr.ifr_name, size-1);
return fd;
}
static int tun_create_by_id (char *name, size_t size, unsigned id, int mq)
{
char dev_name[64];
snprintf(dev_name, sizeof(dev_name), "tun%u", id);
return tun_create_by_name(name, size, dev_name, mq);
}
#elif defined(__APPLE__)
static int tun_create_by_id (char *name, size_t size, unsigned id, _unused_ int mq)
{
int fd = socket(PF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL);
@@ -108,7 +71,42 @@ static int tun_create_by_name (char *name, size_t size, char *dev_name, int mq)
return tun_create_by_id(name, size, id, mq);
}
#else
#else /* not __APPLE__ */
#ifdef __linux__
static int tun_create_by_name (char *name, size_t size, char *dev_name, int mq)
{
int fd = open("/dev/net/tun", O_RDWR);
if (fd==-1)
return -1;
struct ifreq ifr = {
.ifr_flags = IFF_TUN|IFF_NO_PI,
};
if (mq) {
#ifdef IFF_MULTI_QUEUE
ifr.ifr_flags |= IFF_MULTI_QUEUE;
#endif
}
str_cpy(ifr.ifr_name, dev_name, IFNAMSIZ-1);
if (ioctl(fd, TUNSETIFF, &ifr)) {
close(fd);
return -1;
}
str_cpy(name, ifr.ifr_name, size-1);
return fd;
}
#else /* not __linux__ not __APPLE__ */
static int tun_create_by_name (char *name, size_t size, char *dev_name, _unused_ int mq)
{
char path[64];
@@ -119,6 +117,8 @@ static int tun_create_by_name (char *name, size_t size, char *dev_name, _unused_
return open(path, O_RDWR);
}
#endif /* not __APPLE__ */
static int tun_create_by_id (char *name, size_t size, unsigned id, int mq)
{
char dev_name[64];
@@ -127,6 +127,7 @@ static int tun_create_by_id (char *name, size_t size, unsigned id, int mq)
return tun_create_by_name(name, size, dev_name, mq);
}
#endif
int tun_create (char *dev_name, int mq)