deavmi/libtun
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libtun
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Updated to use stdint.h

This commit is contained in:
Tristan B. Velloza Kildaire 2021-11-15 13:30:18 +02:00
parent 8fab9b2217
commit b3631ab3e0
1 changed files with 15 additions and 7 deletions
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22
source/libtun/tunctl.c
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@ -20,11 +20,19 @@
#include<string.h>
#include<sys/ioctl.h>
#include<unistd.h>
#include<stdint.h>
int createTun(char* interfaceName, int iffFlags)
/* TODO: Update types here using stdint */
uint32_t createTun(char* interfaceName, int32_t iffFlags)
{
/* TODO: Add all required error checking */
int tunFD = open("/dev/net/tun", O_RDWR);
int32_t tunFD = open("/dev/net/tun", O_RDWR);
/* If error */
if(tunFD < 0)
{
return tunFD;
}
/* TUN properties */
struct ifreq interfaceReqData;
@ -38,22 +46,22 @@ int createTun(char* interfaceName, int iffFlags)
strcpy(interfaceReqData.ifr_name, interfaceName);
/* Attempt to bring up the tun device node */
int tunStatus = ioctl(tunFD, TUNSETIFF, &interfaceReqData);
int32_t tunStatus = ioctl(tunFD, TUNSETIFF, &interfaceReqData);
if(tunStatus < 0)
{
tunFD = tunStatus;
tunFD = tunStatus;
}
return tunFD;
}
int destroyTun(int fd)
uint32_t destroyTun(int fd)
{
return close(fd);
}
int tunWrite(int fd, char* data, int length)
uint32_t tunWrite(int fd, char* data, int length)
{
write(fd, data, length);
}
@ -64,7 +72,7 @@ int tunWrite(int fd, char* data, int length)
*
* (FIXME: For now we just read 20 bytes)
*/
int tunRead(int fd, char* data, int amount)
uint32_t tunRead(int fd, char* data, int amount)
{
return read(fd, data, amount);
}