version 1.12.4.2, 2016/05/14 13:12:43
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version 1.13, 2016/05/18 12:47:42
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Line 481 e_getnet(const char *net)
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Line 481 e_getnet(const char *net)
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* e_ether_addr() - Get or set ethernet address from interface name |
* e_ether_addr() - Get or set ethernet address from interface name |
* |
* |
* @ifname = interface name |
* @ifname = interface name |
* @addr = if addr is !=NULL then set this for new address | * @addr = if addr is !=NULL then set new ethernet address |
* return: NULL error or !=NULL get ethernet address should be e_free() | * return: NULL error or !=NULL get current ethernet address should be e_free() |
*/ |
*/ |
ether_addr_t * |
ether_addr_t * |
e_ether_addr(const char *ifname, ether_addr_t * __restrict addr) |
e_ether_addr(const char *ifname, ether_addr_t * __restrict addr) |
{ |
{ |
ether_addr_t *a = NULL; |
ether_addr_t *a = NULL; |
struct ifaddrs *p, *ifa = NULL; |
struct ifaddrs *p, *ifa = NULL; |
#ifdef __linux__ |
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int s; |
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struct ifreq req; |
struct ifreq req; |
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int s; |
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sockaddr_t sa = E_SOCKADDR_INIT; |
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memset(&req, 0, sizeof req); |
memset(&req, 0, sizeof req); |
#endif |
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if (!ifname) |
if (!ifname) |
return NULL; |
return NULL; |
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a = e_malloc(sizeof(ether_addr_t)); |
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if (!a) |
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return NULL; |
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else |
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memset(a, 0, sizeof(ether_addr_t)); |
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getifaddrs(&ifa); |
getifaddrs(&ifa); |
for (p = ifa; p && p->ifa_name; p = p->ifa_next) { |
for (p = ifa; p && p->ifa_name; p = p->ifa_next) { |
#ifndef __linux__ |
#ifndef __linux__ |
if (p->ifa_name && !strcmp(p->ifa_name, ifname) && p->ifa_addr && |
if (p->ifa_name && !strcmp(p->ifa_name, ifname) && p->ifa_addr && |
p->ifa_addr->sa_family == AF_LINK) { |
p->ifa_addr->sa_family == AF_LINK) { |
memcpy(a, LLADDR((struct sockaddr_dl*) p->ifa_addr), sizeof(ether_addr_t)); | a = e_malloc(sizeof(ether_addr_t)); |
| if (a) |
| memcpy(a, LLADDR((struct sockaddr_dl*) p->ifa_addr), |
| sizeof(ether_addr_t)); |
| |
| /* should set mac address */ |
| if (addr && (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) > 0) { |
| strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); |
| sa.sa.sa_family = AF_LINK; |
| sa.sa.sa_len = sizeof(ether_addr_t); |
| memcpy(sa.sa.sa_data, addr, sizeof(ether_addr_t)); |
| req.ifr_ifru.ifru_addr = sa.sa; |
| ioctl(s, SIOCSIFLLADDR, &req); |
| close(s); |
| } |
break; |
break; |
} |
} |
#else |
#else |
if (p->ifa_name && !strcmp(p->ifa_name, ifname)) { |
if (p->ifa_name && !strcmp(p->ifa_name, ifname)) { |
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP); | s = socket(AF_INET, SOCK_DGRAM, 0); |
if (s == -1) { | if (s == -1) |
e_free(a); | |
a = NULL; | |
break; |
break; |
} else | strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); |
strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); | if (!ioctl(s, SIOCGIFHWADDR, &req)) { |
if (ioctl(s, SIOCGIFHWADDR, &req) == -1) { | a = e_malloc(sizeof(ether_addr_t)); |
e_free(a); | if (a) |
a = NULL; | memcpy(a, req.ifr_addr.sa_data, sizeof(ether_addr_t)); |
} else | |
memcpy(a, req.ifr_addr.sa_data, sizeof(ether_addr_t)); | /* should set mac address */ |
| if (addr) { |
| memset(&req, 0, sizeof req); |
| strlcpy(req.ifr_name, ifname, sizeof req.ifr_name); |
| sa.sa.sa_family = ARPHRD_ETHER; |
| memcpy(sa.sa.sa_data, addr, sizeof(ether_addr_t)); |
| req.ifr_hwaddr = sa.sa; |
| ioctl(s, SIOCSIFHWADDR, &req); |
| } |
| } |
| close(s); |
break; |
break; |
} |
} |
#endif |
#endif |