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comparison src/common.c @ 64:fa53d1c54886

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Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
author Ivo Smits <Ivo@UFO-Net.nl>
date Sat, 07 Jan 2017 18:07:27 +0100
parents fa4983c5f7ea
children c87212fe8883
comparison
equal deleted inserted replaced
63:fa4983c5f7ea 64:fa53d1c54886
38 #include <poll.h> 38 #include <poll.h>
39 #include <netdb.h> 39 #include <netdb.h>
40 #include <stdlib.h> 40 #include <stdlib.h>
41 #include <arpa/inet.h> 41 #include <arpa/inet.h>
42 #include <net/if.h> 42 #include <net/if.h>
43 #include <stdbool.h>
43 #ifdef linux 44 #ifdef linux
44 #include <linux/if_tun.h> 45 #include <linux/if_tun.h>
45 #include <linux/if_ether.h> 46 #include <linux/if_ether.h>
46 #else 47 #else
47 #define ETH_FRAME_LEN 1514 48 #define ETH_FRAME_LEN 1514
262 if ((envval = getconf("TUN_UP_SCRIPT"))) system(envval); 263 if ((envval = getconf("TUN_UP_SCRIPT"))) system(envval);
263 session->fd_dev = ttfd; 264 session->fd_dev = ttfd;
264 return ttfd; 265 return ttfd;
265 } 266 }
266 267
267 void hex2bin(unsigned char* dest, const char* src, const int count) { 268 bool hex2bin(unsigned char* dest, const char* src, const int count) {
268 int i; 269 int i;
269 for (i = 0; i < count; i++) { 270 for (i = 0; i < count; i++) {
270 if (*src >= '0' && *src <= '9') *dest = *src - '0'; 271 if (*src >= '0' && *src <= '9') *dest = *src - '0';
271 else if (*src >= 'a' && * src <='f') *dest = *src - 'a' + 10; 272 else if (*src >= 'a' && * src <='f') *dest = *src - 'a' + 10;
272 else if (*src >= 'A' && * src <='F') *dest = *src - 'A' + 10; 273 else if (*src >= 'A' && * src <='F') *dest = *src - 'A' + 10;
274 else return false;
273 src++; *dest = *dest << 4; 275 src++; *dest = *dest << 4;
274 if (*src >= '0' && *src <= '9') *dest += *src - '0'; 276 if (*src >= '0' && *src <= '9') *dest += *src - '0';
275 else if (*src >= 'a' && *src <= 'f') *dest += *src - 'a' + 10; 277 else if (*src >= 'a' && *src <= 'f') *dest += *src - 'a' + 10;
276 else if (*src >= 'A' && *src <= 'F') *dest += *src - 'A' + 10; 278 else if (*src >= 'A' && *src <= 'F') *dest += *src - 'A' + 10;
279 else return false;
277 src++; dest++; 280 src++; dest++;
278 } 281 }
282 return true;
279 } 283 }
280 284
281 static int drop_privileges() { 285 static int drop_privileges() {
282 char* envval; 286 char* envval;
283 struct passwd *pw = NULL; 287 struct passwd *pw = NULL;